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Henan Changxing Refractory Material Co.,Ltd.

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EAF Bottom Ramming Mass

EAF Refractories

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EAF Bottom Ramming Mass Introduction: EAF Bottom Ramming Mass is suitable for high-power EAF, ultra-high-power EAF bottom, furnace slope and other parts. Dry ramming mass can be used for the bottom of DC and AC EAF furnace, carried out construction by ramming. Ramming mix for EAF production technics: 1.Based on high purified compound dolomite sand and high purified magnesia.2.Add magnesia iron sand.3.Adding certain quantity of anchoring agent . EAF Bottom Ramming Mass Use method :1.Spread the material in the bottom with thichness of100mm to 150mm and rammed hard, 2.Clean the surface, repeat the ramming work once again3.Put a piece of steel sheet on the surface to avoid damage on the surface when putting scrap and hot metal.4.Knotting quality inspection method: use a 4mm diameter iron rod, such as φ 4mm welding rod, the insertion depth does not exceed 20mm.
Green mortar mass

Ladle Refractories

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Green mortar mass Introduction:Green mortar mass has good adhesion and high refractoriness, which is an ideal product to fill gaps in between slide gate plate and nozzle. The green mortar mass is to process the green mortar to the finished product as a mass, which is convenient for transportation and more convenient for customers to use. Green mortar mass Advantage:The green mortar mass is convenient for customers to transport and use. It has strong fluidity, no sintering, and no steel leakage. It is also commonly used in the tundish quick-change nozzle. The green mortar mass is used between the slide gate plate and the mechanism to prevent the slide gate plate from loosening steel and sticking to the machinery during use.
Lightweight Brick

Reheating furnace Refractories

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Lightweight Brick Introduction：Lightweight brick generally refers to foamed brick, which is made of high quality plate corundum and mullite as aggregate, composite silicalite as matrix, special additives and a small amount of rare earth oxide, and then molded by high pressure and fired at high temperature. Ordinary lightweight brick contains clay brick, high aluminum high strength drift bead brick, low iron mullite brick, high aluminum poly light thermal insulation brick, diatomite thermal insulation brick, etc. Industrial kilns use lightweight bricks with low thermal conductivity and small heat capacity as the structural material of the furnace body, which can save fuel consumption; at the same time, because the kiln can quickly heat up and cool, it can improve the production efficiency of the equipment; it can also reduce the weight of the furnace body. Simplify the kiln structure, improve product quality, lower the ambient temperature, and improve working conditions. Lightweight Brick Advantage：1, Economy: Lightweight brick can reduce foundation cost. Compared with solid clay brick, using light brick can decrease overall cost.2, Practicality: Using lightweight brick can increase application area, and insulation effect can be better.3, Application property: lightweight brick has good processability, easier for construction. This brick is larger and lighter, can make construction work higher efficient, then shorten the construction period.
Mica Paper

Induction furnace Refractories

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Mica Paper Introfuction：Mica paper is made of high-quality phlogopite and synthetic muscovite paper, and is made of electroless alkali-free fiberglass cloth as reinforcing material, bonded with high-temperature silicone resin, baked at high temperature, dried and pressed.  Mica paper is made of crushed mica or mica powder as raw material through pulping, papermaking, forming, pressing and other processes. The mica paper is made of double-layer alkali-free glass fiber cloth on both sides as the reinforcing material, bonded with high temperature resistant organic silica gel. It has good fire resistance and is a very good insulation and high temperature resistant paper. Mica Paper Advantages： Excellent insulating propertyHigh temperature resistance Flexible fine tensile strengthGood penetration and air permeability
Ladle Back Fillers

Ladle Refractories

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Ladle Back Fillers Introduction：Ladle back filler is made of burnt magnesia as raw material, which has the characteristics of good construction performance, erosion resistance, erosion resistance, etc. It has good heat preservation performance, high temperature resistance and good thermal shock resistance. The product is a filler between the permanent layer and the working layer of the electric furnace and the ladle, and the filling effect is good. Ladle Back Fillers Advantages: Convenient construction, erosion resistance, erosion resistance, excellent high temperature resistance, thermal shock stability.
EAF Back Filler

EAF Refractories

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EAF Back Filler Introduction：EAF back filler is made of burnt magnesia as raw material, which has the characteristics of good construction performance, erosion resistance, erosion resistance, etc. It has good heat preservation performance, high temperature resistance and good thermal shock resistance. The product is a filler between the permanent layer and the working layer of the electric furnace and the ladle, and the filling effect is good. EAF Back Filler Advantages: Convenient construction, erosion resistance, erosion resistance, excellent high temperature resistance, thermal shock stability.
AOD Magnesia Carbon Brick

AOD Refractories

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AOD Magnesia Carbon Brick Introduction: AOD magnesia carbon brick refers to a refractory product made of magnesia and graphite as raw materials. Magnesia carbon brick has high fire resistance, high corrosion resistance, excellent heat-resistant peeling property, high-temperature volume stability, and high thermal shock resistance. According to the smelting conditions and the smelting steel grade, different quality magnesia carbon bricks can be provided.
Tundish Nozzle

Tundish Refractories

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Tundish Nozzle Introduction: Tundish nozzles usually comprise a zirconia inner nozzle (often referred to as a “zirconia insert”) with a lower grade outer body such as Alumina, Zircon or Bauxite. Tundish Nozzles are an integral part of Continuous Steel Casting process. The design of tundish nozzles vary according to the system manufacturer or the individual needs of the steel plant. Tundish nozzle is a combination of inner core and exterior. The inner core is made of stabilized zirconia and zircon sand, producing through molding machines and high-temperature calcination. The exterior is made of zirconium and corundum, producing through molding machines and low-temperature baking. Tundish nozzle is located at the bottom of the tundish, it's the channel of liquid steel to flow from the tundish into the crystallizer.  Tundish Nozzle Advantages: 1. Fast sliding, accurate, no bias current, steel leakage;2. Good corrosion resistance, no obvious expanding, long service life, no bias current and dissipation;3. Good thermal shock resistance and explosion resistance;4.Changxing Refractory can make different products according to customer's requirement. Tundish nozzle has the advantages of heat preservation, reduce the temperature of the outer surface of the nozzle, reduce the heat dissipation, reduce weight, increase strength, improve the service life, etc. Tundish nozzle is an important part of continuous casting production. Whether the tundish nozzle exit aperture is kept constant is an important index to measure the product quality.It is usually measured in total usage time in actual production. Tundish nozzle has the properties of high refractoriness, good resistance to erosion, and can bear rushing scour etc.
Ladle Magnesia Carbon Brick

Ladle Refractories

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Ladle Magnesia Carbon Brick Introduction： Magnesia carbon brick is made of fused magnesia and high carbon graphite, with antioxidant was added, and the phenolic resin was used as the binder for high pressure molding. MgO-C refractory bricks are widely used in steel industry. General magnesia-carbon bricks are made of high-quality magnesia with high-purity graphite, silicon, silicon carbide and other additives, and phenolic resin as a binding agent.  Magnesia carbon bricks are widely used in steel industry, the primary consumer of refractory linings, such as basic oxygen furnaces, electric arc furnaces, and ladle furnaces.
Alumina Magnesia Carbon Brick

Ladle Refractories

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Alumina Magnesia Carbon Brick Introduction:Alumina magnesia carbon brick is composed of high grade bauxite, corundum, spinel, high purity magnesite and graphite. Alumina magnesia carbon bricks have the advantages of corrosion resistance, spalling resistance, balanced erosion, safe use, less staining of steel and slag, and easy unpacking. It is mainly used for the lining of Shenggang Poke under harsh conditions. The use of aluminum-magnesium-carbon bricks as linings in the molten pool and the bottom of the continuous casting large tundish and refining ladle outside the furnace is increasing.  The characteristic of alumina magnesia carbon brick is that in addition to the advantages of high corrosion resistance and resistance to peeling due to carbon content, it also has the advantage of showing a high residual linear expansion rate due to the heat generated spinel during use. Newly developed high-quality lining bricks. Alumina Magnesia Carbon Brick Advantages: Erosion and corrosion resistance, spalling resistance.
Magnesia Alumina Carbon Brick

Ladle Refractories

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Magnesia Alumina Carbon Brick Introduction： Magnesia alumina carbon brick is made from high grade magnesite, corundum, spinel and graphite. At present, the ladle bricks used in ladle are mainly magnesia alumina bricks, magnesia carbon bricks and aluminum magnesia carbon bricks. Among them, magnesia-aluminum bricks have the advantages of low production cost, no carbon increase from molten steel, slag erosion resistance and strong permeability, etc. Especially in the production of ultra-low carbon steel, in order to prevent molten steel from increasing carbon, it is particularly important to use ladle with magnesia-aluminum brick lining.  Magnesia Alumina Carbon Brick Advantages: Good slag resistance, good thermal shock resistance.
Ladle Purging Plug

Ladle Refractories

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Ladle Purging Plug Introduction: Ladle purging plug has been in the leading position in domestic and abroad over years. We have developed the series of corundum, chromium corundum, low silicon chromium corundum and corundum spinel one after another.  Ladle purging plug is a very important functional element in the out-of-furnace refining technology. Inert gases such as argon are introduced into the molten steel through the ladle purging plug at the bottom of the ladle to provide power for the stirring of the molten steel to achieve uniform steel.   According to the assembly mode, ladle purging plug can be divided into integrated purging plug and seperated purging plug. Both are composed of purging plug core and well block.  The materials of ladle purging plug are mainly sintered magnesia, magnesia chromium, high aluminum and corundum. It is a better choice to use corundum as the main crystal phase of the breathable brick.  To realize the argon blowing process, the ladle purging plug must have good high temperature resistance, corrosion resistance, thermal shock resistance, high temperature volume stability and high strength, stable operation, good air permeability, accurate dimensions, and less molten steel penetration. In the actual field use results, it is found that the non-oxide bonded corundum purging plug has the characteristics of good thermal shock resistance, non-wetting with molten steel, high blow-through rate during use, easy to clean by oxygen blowing, and low corrosion rate. At the same time, the service life has also been significantly improved.  Ladle Purging Plug Advantages: Ladle purging plug can be designed and produced types of straight hole, directional slit, directional labyrinth, girth shape and interior and exterior integral split etc, according to users’ request. Permeable flow rate of products can be designed upon customers’ request and can be adjusted in a wide range. Email us now: info@cxrefractories.com
Ladle Purging Well Block

Ladle Refractories

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Ladle Purging Well Block Introduction:Ladle purging well block is made from chrome corundum and corundum spinel. According to the assembly mode, the ladle purging plug can be divided into integrated purging plug and seperated purging plug. Both are composed of purging plug core and ladle purging well block. Whether integrated purging plug or seperated purging plug, the function of the ladle purging well block is to protect the brick core and prevent molten steel from corroding to any position of the brick core except the working surface. A composite metal anchor is arranged inside the refractory casting body of the ventilating seat brick to improve the overall bonding strength of the refractory material of the ventilating ladle purging brick, reducing the chance of large flaking and cracking during the use of the refractory material of the purging well block, and improving the purging well block, the service life of the air-permeable brick is further improved. Masonry of purging plug: clean the parts of the breatable bricks reserved for the permanent layer of the bottom of the bag; Use a crane to align the steel pipes of the ladle purging plug at the reserved holes at the bottom of the ladle, put them firmly, and sit upright; Around the ladle purging plug and the bottom bricks of the bag The gap between is filled with castable. Ladle Purging Well Block advantages: High strength, strong erosion resistance to molten steel and good thermal shock resistance.
Ladle Upper Nozzle

Ladle Refractories

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Ladle Upper Nozzle Introduction:Ladle upper nozzle series are developed with newest matrix optimization technology and theory of most-compact.  In the pouring process, generally after pouring one or two furnaces of molten steel, the lower slide plate and the nozzle must be replaced and reassembled. The sealing protection adopts fibrous or mortar gaskets to ensure the high cleanliness of the molten steel and the uniformity of the internal quality of the casting slab. The ladle nozzle is used to output the molten steel in the ladle. The ladle nozzle includes an upper nozzle, a sliding plate and a lower nozzle which are arranged in order from top to bottom. The sliding plate is slidable and the sliding plate is provided with molten steel holes. Ladle Upper Nozzle Advantages:Ladle nozzle is characterized by good thermal shock resistance, strong washout resistance, steady quality and long service life.
Ladle Lower Nozzle

Ladle Refractories

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Ladle Lower Nozzle Introduction:Ladle lower nozzle series are developed with newest matrix optimization technology and theory of most-compact.  Ladle sliding mechanism is a commonly used equipment for steelmaking. Before steelmaking, the sliding nozzle is installed and fixed on the sliding mechanism. The sliding mechanism is divided into upper and lower parts. The traditional installation method of the lower nozzle is to install the slide plate first, and then the upper and lower parts of the sliding machinery shell. The two parts are buckled together and locked. Finally, install the nozzle and install the nozzle cover on the outside of the nozzle. Rotate the nozzle cover to lock and fix the lower nozzle. Ladle Lower Nozzle Advantages: Our ladle nozzle is characterized by good thermal shock resistance, strong washout resistance, steady quality and long service life.
Ladle Slide Gate Plate

Ladle Refractories

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Ladle Slide Gate Plate Introduction: Alumina-carbon slide gate plate is preferred products for big/medium ladle and continuous casting tundish. Alumina-carbon slide gate plates can meet the requirement of different steel grades. According to different conditions of use, choose the corresponding material of the slide gate plate, which can increase the service life of the slide gate plate and reduce the cost of refractory materials. The sealing protection of the ladle sliding nozzle is mainly at the connection between the upper nozzle and the upper slide, and the lower slide and the lower nozzle. What is Slide Gate Plate? Slide Gate Plate Refractories are installed on the ladle's bottom for regulating the flow of liquid steel from Ladle to Tundish. These are special refractories and should be treated with caution.  What is the composition of the Slide Gate Plate? In general, the refractory raw materials used in the sliding plate are high Al2O3 and MgO based materials. The addition of carbon brings in high thermal conductivity, low coefficient of thermal expansion and non-wettable properties to Al2O3-C. Slide Gate Refractory: Slide gate plate refractories are utilized in ladles and tundishes where they are subjected to thermal stress and physical abrasion from molten metal and slag. As a result, the slide gate plate must be resistant to thermal shock as well as corrosion. Ladle Slide Gate Plate Advantages: Alumina-carbon slide gate plate is characterized by high strength, erosion resistance and good thermal shock resistance.
Magnesia Carbon Brick for Converter

BOF Refractories

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Magnesia Carbon Brick for Converter Introduction:Magnesia Carbon Brick for Converter are designed according to different operation conditions and application areas of the converter lining. The bricks are made of pure flake graphite and large fused crystal magnesia which has high purity and density. Added with special antioxidant and use resins as binders and finally shaped under high pressure.Magnesia carbon brick is generally required that the content of MgO in magnesia should be greater than or equal to 95%, and the content of C in graphite should be greater than or equal to 94%. Magnesia carbon brick use electric fused magnesia sand,high purity magnesia sand,magnesia sand,Re-burn magnesium sand,High-quality graphite and Bauxite additives as raw material.  The charging side requires magnesia carbon bricks to have high resistance to slag erosion, high temperature resistance and good peeling resistance. Therefore, high-strength magnesia carbon bricks with metal antioxidants are usually used. The main raw materials of magnesia-carbon bricks include fused magnesia or sintered magnesia, flake graphite, organic binders and antioxidants. Magnesia is the main raw material for the production of MgO-C bricks, which can be divided into fused magnesia and sintered magnesia. Compared with sintered magnesia, fused magnesia has the advantages of coarse periclase crystal grains and large particle bulk density, and is the main raw material used in the production of magnesia-carbon bricks.  Magnesia Carbon Brick for Converter Advantages:1.good erosion resistance2.thermal shock resistance
Tap Hole Brick

BOF Refractories

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Tap Hole Brick Introduction:Taphole brick is made of high purity fused magnesia and large crystal magnesia, mixed with high purity flake graphite and added with special antioxidant and resin binders,usually shaped by cold isostatic presses. The Tap Hole Brick of converter is one of the most important technical indexes of steel melting, which directly affects the melting period, productivity and slag retaining,therefore affects the quality of steel.Our whole Tap Hole Brick achieve multiple people laying the furnace, improve the speed of laying, shorten the whole laying time, the Tap Hole Brick repair material reduced, and reduce the steel flow to improve the quality of molten steel, reduce the steel process temperature drop, enhance the Tap Hole Brick erosion resistance and mechanical erosion resistance. Tap Hole Brick Advantages:1.Tap hole brick is characterized by good oxidation resistance2.high strength, good corrosion resistance3.good integrity, easy replacing and long life 4.Tap hole brick is ideal material taphole of large and medium furnace Tap Hole Brick Influence： The taphole life is one of the important indicators of the converter sliding plate slag blocking technology. The taphole is easily damaged due to frequent direct erosion and violent erosion of high-temperature molten steel and high-oxidizing slag, combined with the effects of rapid cold and heat. The length of its life directly affects the converter smelting cycle, steelmaking productivity and slag retaining effect, which in turn affects the quality of steel. The integrity of the tap hole directly controls the amount of slag in the converter, and has a direct impact on the alloy yield and the next refining process. Measures to improve the application of refractory materials:1. Improve and optimize the material and structure of the skateboard to greatly increase the service life2. Measures to improve the overall life of the taphole port during the converter tapping process
Bottom Blowing Purge Plug

BOF Refractories

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Bottom Blowing Purge Plug Introduction:The bottom blowing purge plug produced by Changxing Refractories use high quality magnesia-carbon bricks. Under normal conditions, the adequate pipes could guarantee the high rate of opening and stable gas flows of the purging plug and meet the demands of top-bottom gas purging at the same time. The particle gradation of aggregates, fine powders, binders or admixtures in the ingredients will have different effects on the strength, flexural resistance and thermal shock resistance of the Bottom Blowing Purge Plug.The bottom of the furnace mainly stores molten steel, which is subject to the erosion and penetration of flowing steel slag and molten steel. Bottom Blowing Purge Plug Advantages:1.steady quality2.reliable performance3.precise permeation volume4.high success rate5.good erosion resistance 6.melting loss resistance7.no penetration of steel8.no sticking of slag9.no use of oxygen burning after use
EAF Magnesia Carbon Brick

EAF Refractories

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EAF Magnesia Carbon Brick Introduction：EAF magnesia carbon brick refers to a refractory product made of magnesia and graphite as raw materials for electric furnace lining. EAF magnesia carbon brick has high fire resistance, high corrosion resistance, excellent heat-resistant peeling property, high-temperature volume stability, and high thermal shock resistance. According to the smelting conditions and the smelting steel grade, different quality magnesia carbon bricks can be provided. The main factors that determine the quality of magnesium carbon bricks used in EAF include the purity of magnesite from MgO source, the kinds of impurities, the grain binding state of magnesite and the grain size. EAF walls are almost entirely built with magnesia carbon bricks. Therefore, the service life of magnesia carbon bricks determines the service life of EAF. The main factors that determine the quality of magnesia carbon bricks for EAF include the purity of MgO source magnesia, impurity types, and periclase grain bonding state and grain size; The purity, crystallinity and scale size of flake graphite as the source of carbon introduction; Phenolic resin is usually used as the binder, and the main influencing factors are the addition amount and the amount of residual carbon. EAF Magnesia Carbon Brick Advantages: high erosion resistance, excellent heat-resistant spalling and high temperature stability. The basic requirements of electric furnace for magnesia carbon brick are: (1) The thermal conductivity is low to ensure less heat loss and improve the thermal efficiency of the electric furnace;(2) High thermal chemical and thermal physical corrosion resistance coefficient, which requires good volume stability;(3) Slag resistance, peeling resistance, oxidation resistance and high compressive strength, so as to obtain low consumption and long life.
Ladle Nozzle Well Block

Ladle Refractories

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Ladle Nozzle Well Block Introduction： Ladle nozzle well block is also called square brick, the function is to fix the nozzle. The refractory used for the sliding nozzle should have high high temperature strength, especially the ladle nozzle well brick, which can withstand the mechanical stress when replacing the nozzle brick.  The masonry perfection of the overall ladle purging plug and ladle nozzle well block bricks occupies a large proportion in the process of ladle masonry, and it is also indispensable for molten steel refining.  The ladle nozzle well block produced by our factory are conducive to the removal and replacement of the ladle nozzle bricks, thereby reducing the labor intensity of workers, improving the turnover speed and service life of the ladle nozzle well block, ensuring the safety of the turnover of the ladle nozzle well block.  Ladle Nozzle Well Block Advantages： Good thermal shock resistance, strong washout resistance, steady quality and long service life.
Slide Gate Mechanism

Ladle Refractories

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Slide Gate Mechanism Introduction:Raw material is nodular cast iron. Sealing height is only 110mm. The fan-shape plate is equipped with two slide gate plate. The mobile fan-shape case handle can be used to open the equipment and move outer side plate to other side, then change the slide gate plate accordingly. The sliding nozzle device is installed at the bottom of the ladle to control the steel flow speed and carry out reasonable casting. The sliding nozzle device can be classified in the following ways: according to the number of slide blocks that constitute the sliding nozzle system, it can be divided into two-layer type and three-layer type. There are two slide plates in the two-layer sliding nozzle system, namely the upper slide plate and the lower slide plate. The upper slide plate does not move during operation, and the lower slide plate is used to intercept and throttle. There are three slide plates in the three-layer sliding nozzle mechanism, namely upper slide plate, middle slide plate and lower slide plate. The upper and lower slide plates do not move during operation, and the middle slide plate is used to control the liquid steel flow. Slide Gate Mechanism Advantages:Our slide gate has advantages as following,1. Slip sheet with equal forced and good stability.2. Slide gate lateral clearance self-regulating sensitivity is high.3. Increse the slip sheet’s freedom, bottom slide can fine-tuning.4. Has double-slided tight pin; the gab of hinge lateral can be adjusted.
Ladle Castable

Ladle Refractories

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Ladle Castable Introduction: Ladle castable use corundum, alumina-magnesia spinel, fused magnesite as raw material, adopt micro-powder bonding technology, is produced with addtives. Ladle castable has good workability, high strength, good volume stability, good abrasion resistance and thermal shock resistance, etc., Ladle castable is normally used in large and medium sized ladle as safety layer, also can be casted into bricks. Ladle Castable Advantages: Good workability;High strength;Good volume stability;Good abrasion resistance;Good thermal shock resistance.
Ladle Safety Layer Castable

Ladle Refractories

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Ladle Safety Layer Castable Introduction： Ladle safety layer castable has applicated between ladle insulation layer and lining layer. According to the use characteristics of the thickness of the ladle working lining, the permanent layer thickness required to be designed is moderate. The castable is fully stirred in the mixer, and the amount of water added must be strictly controlled. Ladle is a vessel that directly holds molten steel between steelmaking and continuous casting, and is an important external refining equipment in steel smelting. The change of molten steel temperature in the integrally cast ladle is closely related to the technological progress of the lining castable. The improvement of the ladle safety layer castable is an important way to improve the thermal insulation effect of the integral casted ladle. In order to improve the stability of the ladle safety layer castable, Changxing Refractory has optimized the castable for permanent lining. First, add low-magnesium swelling agent to the matrix, and then adjust the limit particle size of the castable aggregate. Ladle Safety Layer Castable Advantages： Ladle safety layer castable has advantages as following: good fluidity, appropriate solidification time, time and energy saving, high strength, long service life, good insulation properties, high temperature resistance, corrosion resistance and good thermal shock resistance. Ladle Permanent Layer Effect: Ladle permanent layer with a thickness of about 30-60mm. The permanent layer is inside the working layer. The permanent layer plays the role of the main skeleton of the ladle. Ladle permanent layer plays a vital role in preventing the leakage of molten steel and maintaining the safe operation of the ladle. The life span is related to the quality of this layer. This layer is generally built with clay and high-alumina bricks, usually in a comprehensive way.
Ladle Gunning Mix

Ladle Refractories

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Ladle Gunning Mix Introduction: Ladle gunning mix is made from bauxite clinker, high grade magnesite, spinel, bonding agent and additives. It has the advantages of good adhesion, high bonding strength, low rebond rate, easy sintering, good abrasion and erosion resistance, etc., an ideal meterial for cold and hot repairing of ladle slag zone and other area. Ladle Gunning Mix Advantages: Good adhesion;High bonding strength;Low rebond rate;Easy sintering;Good abrasion resistance;Good erosion resistance.
High Alumina Brick

Reheating furnace Refractories

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High alumina bricks introduction:High alumina bricks are refractory products of aluminum silicate or alumina with Al2O3 content greater than 48%. High alumina bricks are mainly used for laying blast furnaces, hot blast stoves, electric furnace tops, blast furnaces, reverberatory furnaces, and rotary kiln linings. High alumina bricks can be said to be one of the most widely used refractory bricks in the refractory industry. High alumina bricks are mainly divided into ordinary high alumina bricks and modified high alumina bricks. Ordinary high alumina bricks refer to commonly used standard fired bricks, while modified high alumina bricks mainly refer to: high load soft high alumina bricks, micro-expansion high alumina bricks, low creep high alumina bricks and phosphate bonded high alumina bricks. High alumina bricks advantages: The high alumina brick has high density, low porosity, high mechanical strength and wear resistance, high softness of load, and good slag resistance. High Alumina Bricks Application: Lightweight high-alumina bricks are currently one of the ideal heat-insulating refractory materials. They have the characteristics of high compressive strength, low thermal conductivity, good insulation performance and low price. They are now widely used in Taoist kilns and roller conveyors. Kilns, shuttle kilns, and wall kilns are not used in various heating furnaces, coke ovens and other thermal equipment in the steel industry to heat treat lining materials. Lightweight high alumina bricks are also called high alumina insulation bricks. A lightweight refractory material with an alumina content of more than 48%, mainly composed of mullite and glass phase or corundum. The bulk density is 0.4-1.cm3, the Confucius Institute rate is 66%-73%, and the compressive strength is 1-8MPa. Usually, a small amount of clay is added to the high-alumina bauxite material, after grinding, it is poured into mud by the gas production method or foam method, and then fired at 1550-1600°C. Sometimes industrial alumina can be used to replace part of the bauxite treatment. It is used in the inner and warm layers of masonry kilns, and the parts that are not strongly eroded and eroded by high-temperature molten materials. When in direct contact with the flame, the surface contact temperature should not be higher than 1400°C.
Anchor Brick for Heating Furnace

Reheating furnace Refractories

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Anchor Brick Introduction:The anchor brick for the heating furnace is suitable for the top and the furnace wall of the heating furnace. The production of anchor bricks mainly needs to consider two aspects: one is the refractoriness, and the other is the tensile strength. The production of anchor bricks pays more attention to the cold tensile strength of anchor bricks, and the production is also prosperous using raw materials that are easy to sinter to make bricks. Anchor brick is a kind of anchor brick for industrial kiln, also known as hanging brick and anchor. It is formed by press molding or pouring molding and then high temperature sintering. The structure and masonry of the trough-shaped anchored brick hanging form are relatively simple and easy to replace. In order to avoid the high temperature of the I-beam hanging from the anchor bricks, the upper surface of the anchor bricks is not allowed to be installed with a heat insulation layer, so the heat dissipation capacity of the furnace roof is relatively large. The hanging form of anchored bricks with wrong teeth has the advantages of good interlocking integrity and good airtightness. Even if the individual bricks are broken, they will not fall. Anchor Brick Advantages:Anchor brick for heating furnace has long service life with high refractoriness and tensile strength, prevents damage or falling off during exercise. Anchor bricks have many advantages such as good erosion resistance, good spalling resistance, high strength, and basically the same thermal expansion as the castable of the furnace lining. Our factory can provide customers with professional customization.
Converter Furnace Patching Material

BOF Refractories

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Converter Furnace Patching Material Introduction:Converter Furnace Patching Material is suited for easily-worn lining such as trunnion area, taphole area and large working surface in converters. Mainly applied for converter furnace hot patching, and suitable for periodic manufacturing.When converter furnace working, and the patching material will flow to pit and fill broken departs. Thus to finish hot patching work. Converter Furnace Patching Material Advantages:1. Patching material mainly made from high purity magnesia sand and synthetic dolomite sand, and mixed with wetting agent and agglutinant.2. In high temperature ,which has performed flowability and can spread out automatically.3. Scientific proportioning, low melting point, fast sintering speed,high adhesion, erosion resistance, long service life, environment friendly, suitable for patching broken departments4. Saving time, energy conservation, improve furnace service life, does not pollute molten steel.
Bottom Frame & Skid Platform Brick for Heating Furnace

Reheating furnace Refractories

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Introduction: Skid and platform brick use brown corundum and high grade bauxite as raw materials, using low cement technology and additive. Casting moulding and baking at low temperature, or casting on-site is both available.Skid and platform brick are used for isothermal bed and furnace doorframe of continuous heating furnace and have good effect. Advantages: Skid and platform brick have the characters of high strength, abrasion and erosion resistance.
Magnesia brick

EAF Refractories

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Magnesia brick Introduction:The magnesia brick is made of magnesium oxide as the main raw material. Because of its high refractoriness, magnesia brick has a high specific heat capacity at high temperatures, and is mainly used in the permanent layer of the electric furnace to provide heat storage. The melting point of MgO is as high as 2800℃, and the refractoriness of magnesia bricks is generally high, reaching above 2000℃. Therefore, magnesia bricks have good high temperature resistance, high temperature vacuum stability is good, and strong resistance to alkaline slag. Magnesite brick (Magnesite Brick) magnesium oxide content of more than 90%, alkaline refractory material with square magnesium as the main crystal phase Magnesite brick can generally be divided into two categories: sintering magnesium bricks (also known as firing magnesium bricks) and chemical combination of magnesium bricks (also known as magnesium bricks). The purity and the high -fired magnesium bricks are directly contacted by the magnesium grain grains, which are called directly combined with magnesium bricks; bricks made of electric melting magnesium are called electric melt and then combined with magnesium bricks. Magnesium bricks have high fire resistance, very good alkaline resistance residue performance, and the softening of the lotus starts high, but the heat shock resistance is poor. The sintering magnesium bricks are made of magnesium bricks. After crushing, ingredients, mixed training, and molding, they are burned at high temperatures at 1550 to 1600 ° C. The firing temperature of high -purity products is above 1750 ° C. No magnesium brick is an appropriate chemical binding agent to magnesium, which is made of mixed, forming, and drying. Burning magnesium bricks use high -quality sintering magnesium sand as the main raw material, and uses pulp as a binding agent. After mixed and high -pressure molding, it was burned in a high -temperature tunnel kiln above 1550 ° C. Have good thermal stability, anti -erosion and anti -peeling performance. Widely used in industrial kiln such as turntable furnaces and arc furnaces as fire resistance materials. Magnesia brick Advantages:  Electric -melting magnesium bricks have the advantages of dense brick structure, high mechanical strength, and small impurities. It is mainly used in the high temperature area of the heat storage room of large glass kiln. Electric magnesium is made of high -quality magnesium sand as the raw material. The English name Fused Magnesite. Magnesium, water magnesium ore, or magnesium hydroxide extracted from seawater are burned by high temperature. Strong anti -hydration ability,high refractoriness, high specific heat capacity.
Chrome Corundum Abrasion Resistance Prefabricated Part

Reheating furnace Refractories

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Chrome Corundum Abrasion Resistance Prefabricated Part Introduction: The Chrome Corundum Abrasion Resistance Prefabricated Part is suitable for working lining of low temperature zone, medium temperature zone, high temperature zone and water-cooled pipe part of rolling steel heating furnace.  Chrome Corundum Abrasion Resistance Prefabricated Part Advantages:Chrome corundum abrasion resistance prefabricated part has high tensile strength, good thermal shock resistance and mechanical abrasion resistance.
Mullite Insulating Bricks

Reheating furnace Refractories

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Mullite Insulating Brick Introduction: Mullite insulating bricks adopt high purity raw materials and unique production process, to avoid the impact of impurities and structural defects on the performance of products to the greatest extent. Can be used in metallurgy, machinery, ceramics, chemical industry and other industries furnace lining (Mullite insulating bricks is not corroded by molten liquid) and insulation layer, is an ideal energy-saving products.
Clay Brick

Reheating furnace Refractories

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Clay Brick Introduction:Clay brick refers to a clay product with an Al2O3 content of 30% to 40% aluminum silicate. Clay bricks are used in secondary parts of coke ovens, such as regenerator wall sealing, small flue lining bricks and regenerator grid bricks, furnace door lining bricks, furnace roofs and riser lining bricks.  Clay Brick Advantages:Clay bricks are weakly acidic refractory products, which are resistant to the attack of acid slag and acid gas. The clay bricks have good thermal properties and are resistant to rapid cooling and rapid heat.
Tundish Dry Vibration Mix

Tundish Refractories

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Tundish Dry Vibration Mix Introduction: The tundish dry vibration mix is composed of refractory aggregate, powder, sintering agent and admixture. Without the addition of water or liquid binder, only by vibration, a dense and uniform monolithic refractory raw material can be formed. When heated, tundish dry vibration mix is made tough by a thermosetting binder or a ceramic sintering agent. Tundish dry material is an unshaped refractory material (tundish working lining) made by vibration molding without adding water and liquid binder. The dry material is dense and uniform, and the demoulding strength is generated after low temperature heating.  Tundish dry vibration mix's characteristics are: This kind of material is easy to flow under the action of vibration force, and the powder can fill the tiny pores between particle accumulations even under the action of very small vibration force, and obtain a dense body with higher filling density. In use, it is heated to form a working surface with a certain strength. However, part of the non-working face is still unsintered and presents the original densely packed structure. This structure helps to reduce the stress caused by expansion or contraction; helps to hinder the spread and extension of cracks; helps prevent the intrusion of molten metal, and facilitates unpacking and cleaning. This material is constructed on the construction site by vibration method, which is easy to construct, short in construction period, does not require maintenance and baking, and can directly raise the temperature quickly to make the working layer sintered and put into use.  Tundish Dry Vibration Mix Advantages: Strong resistance to molten steel and slag, convenient construction, long service life, waterless construction reduces the chance of secondary oxidation of molten steel in the tundish. The tundish working lining made of tundish dry vibration mix has been widely used in major steel plants because of its convenient construction, short baking time, good slag resistance, good insulation effect, low energy consumption, and simple construction equipment. Advantages of dry vibrating material construction:(1) The construction process is convenient and fast(2) Reduced labor intensity(3) Improved construction environment(4) No dust, no irritating gas, no pollution to the environment
Tundish Coating

Tundish Refractories

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Tundish Coating Introduction： The tundish coating is an unshape refractory material for steel continuous casting tundish.Tundish coating is made of high-quality magnesia as raw material, reasonable particle size grading, and mixed with various binders. Refractory spray paint is sprayed on the sprayed surface with a spray gun, and the material constructed by spraying method is called refractory spray paint. The spraying methods of refractory spray coatings are divided into three types: wet method, dry method and flame method. Tundish Coating Advantages： Tundish coating has the characteristics of easy smearing, non-cracking, corrosion resistance, long life and easy disintegration. Compared with the use of thermal insulation boards, it can reduce non-metallic inclusions in molten steel, improve the cleanliness of molten steel, and improve the performance of steel. Reduce costs and increase efficiency. Tundish coating has high refractoriness, good construction performance, no cracks and no pollution to molten steel.
Tundish Permanent Layer Castable

Tundish Refractories

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Tundish Permanent Layer Castable Introduction： Tundish permanent layer castable is made from high grade bauxite as the main raw material and formulated with various additives. Permanent layer, this layer is in contact with the insulation layer, and its material is generally clay brick. The overall permanent lining is the most common, and the castable is generally high-alumina or mullite self-flowing castable.  As the main raw materials for the development of steelmaking tundish permanent layer castable was determined through analyzing the vanadium slag. Tundish are an important part of continuous cast steel system.  Tundish Permanent Layer Castable Advantages： The tundish castable has good integrity and thermal shock resistance, high strength and long service life.
Casting Powder

Tundish Refractories

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Casting Powder Introduction： Square billet continuous casting is rather complicated, which involved in steel types,section and casting speed. Casting Mold Powder is designed and produced according to parameter of continuous caster and detailed production situation. Casting powder can prevent reoxidation of molten steel,reduce the heat loss of liquid steel and prevent the premature solidification of liquid steel. Also, Casting Powder will dissolve and absorb inclusions on the surface of molten steel, lubricate the mould and the shell. Casting Powder Advantages: Casting Powder has good melting property and steady quality,and is suitable for different casting conditions. Casting Powder can ensure clean and smooth surface of casting block, and also can ensure that there is no shell and flux strip in mold, with even vibration mark and without defects on the surface of casting block. The mainly function of casting mold powder is protecting molten steel from oxidizing, and our factory made mold powder size is according to your furnace volume and steel grade.
Ladle Nozzle Filling Sand

Ladle Refractories

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Ladle Nozzle Filling Sand Introduction:Ladle nozzle filling sand contains metal mixture whose weight is heavier and melting point is lower than molten steel. We put it into ladle nozzle before tapping, using it to protect the molten steel inside ladle nozzle from being solidified, to achieve the purpose of automatic casting. Ladle Nozzle Filling Sand Advantages:Ladle nozzle filling sand is a kind of ideal ladle slid nozzle filler which is successfully developed by our company in recent years, automatic casting success rate of which can reach above 95 percent. There is no metallic inclusion in ingot surface. Ladle nozzle filling sand are used in steel tapping hole of large eccentric furnace bottom.  Ladle nozzle filling sand developed by our company is adapt to the need of increasing gradually in large-scale furnace in recent years. 1.Ladle filler sands  are used in steel tapping hole of large EAF bottom tap hole.2.Ladle nozzle filling sand developed by our company is adapt to the need of increasing gradually in large-scale furnace in recent years.3. It is  an ideal product to replace imported products.4.The steel outflow from eccentric furnace, put electric fillers in at EBT platform, when the steel stuffing can outflow from steel pore while steel water flow into ladle. 5. Automatic free-opening rate can reach over 95%. Ladle Nozzle Filling Sand Function: Ensure automatic ladle pouring, reduce molten steel open pouring time, prevent secondary oxidation of molten steel during pouring, improve billet quality, speed up pouring rhythm, increase and decrease the number of continuous casting furnaces, and reduce the labor of continuous casting machine ladle pouring Strength, put an end to accidents such as scalding ladle pouring due to non-self-burning oxygen.
Heating Furnace Castable

Reheating furnace Refractories

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Heating Furnace Castable Introduction：Heating furnace castable is mainly used for the top of the furnace, the furnace wall and other parts.  The heating furnace plays an extremely important role in the metallurgical industry. It is an industrial furnace that heats materials or workpieces (usually metals) to the rolling temperature for forging. Heating furnaces are used in many industries such as petroleum, chemical industry, metallurgy, machinery, heat treatment and so on. The masonry materials of the heating furnace have undergone so many years of changes, and the focus has been shifted from refractory brick products to unshaped refractory materials such as castables. This is a major advancement in the development of heating furnaces. Heating Furnace Castable Advantages:The main features are good thermal shock resistance, good volume stability and high strength, shaped by casting. 1. Convenient construction, avoiding the problem of many bricks during construction;2. The construction method is easy to master, no specialized technicians are needed, and there is less dust during construction;3. Good spalling resistance and can be used in places with harsh operating conditions; for example, furnace body parts with complex shapes, such as discharge ports, pressure points on the furnace roof, etc.,
Zirconium Sizing Nozzle

Tundish Refractories

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Zirconium Sizing Nozzle Introduction: Zirconium sizing nozzle, the inner core uses zirconia as the main raw material. Zirconium sizing nozzle is widely used in billet continuous casting tundish. The performance of nozzle will directly affect the time of continuous casting. Reliable performance of sizing nozzle is very important for providing high quality molten steel for billet caster and successful casting operation.  Zirconium sizing nozzle is made of stabilized zirconia and imported natural oblique zircon after being stabilized by a special process, and then formed by high pressure molding and high temperature firing. The nozzle brand can be set according to the different steelmaking environment and use requirements of users. The service life and performance of the sizing nozzle refractories are very critical. Zirconia sizing nozzle is widely used in billet continuous casting tundish. The performance of the nozzle directly affects the length of continuous casting time. The sizing nozzle is the nozzle brick in the sliding nozzle device adopted by the steel mill when casting the billet. Zirconia nozzles are highly corrosive to molten steel and molten slag. The nozzles are usually made of higher purity zircon, CaO stabilized ZrO2 and industrial zirconia. Zirconium Sizing Nozzle Advantages: Zirconium sizing nozzle is mainly used for continuous casting of tundish billets, blooms, rectangular billets, and small slabs. Sizing nozzle is mainly used for continuous casting of tundish billets, blooms, rectangular billet and small plate, which is with following characteristic: 1.High refractoriness 2.Good thermal shock performance3.Erosion stability 4.Small diameter expansion5.Long service life Zirconium Sizing Nozzle Effect:The sizing nozzle, as the key refractory material for billet continuous casting, plays a role in controlling the flow of molten steel, determines the drawing speed of the billet in continuous casting, and is a necessary condition to ensure the normal operation of continuous casting. It is called continuous casting function. Refractory materials. In addition to preventing pouring bursting, blockage and falling off, the sizing nozzle must not be expanded too fast to meet the requirements of long-term casting. The production process of the sizing nozzle plays a vital role in its performance. The process parameters such as the particle gradation of raw materials, mixing time, molding pressure, drying method and firing system will all affect the performance of the nozzle. Through the control of production process factors such as granulation, molding, and firing, the service life of the sizing nozzle can be increased.
Tundish Well Block

Tundish Refractories

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Tundish Well Block Introduction:Tundish well block is made of high-quality raw materials, precision-formed, formed by strong pressure, and dried at low temperature. The well block is used in conjunction with nozzle, mainly used for continuous casting tundish. Tundish well blocks are a refractory precast shape that is used to fill the pocket area of a tundish where each tundish nozzle is inserted. Tundish Well Block Advantages:Tundish well block has high corrosion resistance, good thermal shock resistance and erosion resistance.
Long Nozzle

Tundish Refractories

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Long Nozzle Introduction: With a special clamping device, the long nozzle is fixed between the ladle and the tundish to isolate the contact between the molten steel and the air to reduce the secondary oxidation of the molten steel, improve the purity of the molten steel, and prevent the steel from splashing. The use of a non-preheated long nozzle has the advantage that it can be directly installed and used without preheating, thereby saving fuel costs and reducing the labor intensity. Long Nozzle Advantages： The long nozzle has strong adaptability to steel grade and good corrosion resistance. The new designed long nozzle structure realizes the immersion pouring, which effectively alleviates the serious entrapment and air suction during pouring. The invention of long nozzle started from the demand for the protection of molten steel pouring. Its use played a good role in preventing the secondary oxidation and slag entrapment of molten steel, and played an important role in the development of molten steel continuous casting. For continuous casting operations, the long nozzle is of great significance, not only related to its steel-forming efficiency, but also related to the yield. Therefore, for the shape of the long nozzle, the choice of material is equally important. Compared with the submerged entry nozzle, the long nozzle also needs to have many advantages such as crack resistance and corrosion resistance.
EBT Taphole Block

EAF Refractories

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EBT Taphole Block Introduction： The taphole block is made of high-crystalline fused magnesia and high-purity graphite and is formed by high pressure. EBT Taphole Block has the Product advantages of good oxidation resistance, high strength, good corrosion resistance, good integrity, convenient replacement and long service life. EBT Taphole Block is an ideal tapping material for large and medium electric furnaces. EBT Taphole Block Advantages:good oxidation resistance, good corrosion resistance, easy replacement.
EAF Cover

EAF Refractories

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EAF Cover Introduction:The EAF cover is designed to extend the life of the EAF top. According to the basic principle of refractory materials and different electric furnace operating conditions, corundum castables are used for on-site casting or pre-fabrication. EAF cover has the Product advantages of convenient construction, erosion resistance, good thermal shock resistance and long service life. The pouring of the electric furnace cover mainly uses corundum and special grade alumina as refractory materials, adding other additives such as mullite, kyanite, etc., and preparing them according to the formula ratio. After fully mixing, adding appropriate water can be used for construction. High-alumina castable as the castable for electric furnace cover has good thermal shock resistance, strong wear resistance and corrosion resistance, high high temperature and compressive strength, good peeling resistance and slag resistance, and is suitable for the working environment of electric furnace cover. The electric furnace cover is cast off-site and can be transported to the steel plant for direct use. The electric furnace cover cast with high-aluminum castable has good integrity and convenient construction, which is better than refractory brick masonry. It is currently one of the refractory products used for the electric furnace cover. EAF Cover Advantages: convenient construction and long service life. Electric Furnace Cover Classification:Refractory bricks are required to have good thermal shock resistance, corrosion resistance to high-temperature slag splashing, and integrity, and the most important thing is to ensure that the structure is firm and does not crack. 1.Silica refractory brick stove cover. It is built with silicon refractory bricks, which is light in weight and low in price, and has good high-temperature structural strength and creep resistance. However, the molten siO2 at high temperature produces continuous droplets, which leads to a decrease in slag reduction and affects smelting operations. Therefore, high-alumina bricks with better performance were later used. 2. High alumina brick furnace cover. The non-fired high-alumina refractory bricks with 80% high-alumina brick content combined with phosphate and fired mullite bricks or non-fired phosphate-combined mullite bricks all have good thermal shock resistance in common. 3. Alkaline refractory brick stove cover. Magnesium bricks for electric furnace covers can stabilize the structure of the furnace cover, but iron sheets must be used to insert iron sheets during masonry. However, the linear expansion coefficient of magnesia brick is too large, and the dosage is not much. Other alkaline bricks such as magnesia chrome, chrome magnesia, dolomite, magnesia aluminum. With excellent fire resistance and corrosion resistance to iron oxide and molten slag, the service performance is better than high alumina bricks under harsh conditions. 4. Casting furnace cover as a whole. The integral casting furnace cover promotes the further improvement of the life of the furnace cover. After the furnace cover is water-cooled, the electrode is also water-cooled. From the material, high-aluminum ultra-low cement castable and stainless steel fiber are used, and the life span is increased by 3-4 times.
Slag Ball

BOF Refractories

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Slag Ball Introduction:Slag Ball is made of light burnt magnesia, magnesite powders and shaped through presses. Skimming Ball / Skimming Cone are mainly used for the slag splashing, which can effectively improve the performance of Converter. During the tapping process, the molten steel level will decrease gradually. When it reaches a critical value, swirls will emerge in the upper area of tapping hole and draw the slag into the ladles. When the slag limiting ball is put into swirls, the ball will be lay in the upper area of tapping hole, thus the slag can be prevented from flowing into the ladle. The molten steel will flow out from the gaps between the limiting balls and tapping holes, so as to decrease total flowing slag amount. The density of the slag ball is between molten steel and slag, and it is put into the furnace near the tap hole near the end of tapping. With the decrease of the liquid level of molten steel, the slag ball sinks to block the tap hole, so as to prevent the slag from entering the ladle. The reasonable density of slag ball is 4.2 ~ 4.59/cm3. The slag retaining ball has a spherical structure, and its center is made of cast iron block, raw iron chip pressing block or small waste steel billet, and its exterior is covered with refractory clay. High alumina refractory concrete or magnesia refractory clay with high alumina refractory concrete or refractory brick powder as admixture can be used. The diameter of the slag ball should be slightly larger than the diameter of the tapping hole to play the role of slag blocking. Slag-blocking balls are usually put into use between 2/3 and 3/4 of the steel output, and the hit rate of slag-blocking is high. The slag is too sticky, which affects the slag blocking effect. The slag viscosity is high, so the slag blocking ball can be put in early to improve the hit rate of slag blocking. Slag Ball Advantages:1.high strength2.high throwing accuracy3.slag control efficiency
Light Calcined Magnesia Ball

BOF Refractories

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Light Calcined Magnesia Ball Introdution: Light calcined magnesia ball is mainly used as a slag composition regulator for converter slag splashing.Light calcined magnesia ball is made from extra light calcined magnesia and mixing with additive agent, then made into ball with ball press machine or balling pan. After added to converter final slag and light calcined magnesia ball will has reaction very  fast, thus to adjust slag content and made main content into high melting point MgO, C2S and C3S. What’s more, light calcined magnesia ball also can adjust furnace slag dynamic viscosity and high refractoriness, thus improve performance of slag-sp lashing. Light calcined magnesia ball has performance of high speed reaction, adjusting slag content obviously, thus can improve converter furnace service life. Light Calcined Magnesia Ball Advantages: 1. High working temperature2. Completely fireproof3. Strong overload protection capability4. Excellent anti-corrosion and explosion proof5. Long service life6. Better laying flexibility Light Calcined Magnesia Ball Speciality： The light burnt magnesia ball is made by using ordinary light burned magnesia powder and pressing the ball after mixing. Light-burned magnesia balls are mainly used for converter steelmaking and slag splashing to protect the furnace, which can improve the life of the converter. The preparation of light-burned magnesia ball is to add 80% light-burned magnesia powder to 20% water, put it into a milling machine for rolling, stirring, and mixing for 15 to 20 minutes to form a mixture, and then send it to the ball press through a belt conveyor to prepare the product , And then stacked. The light-burned magnesia ball is ready for sale after being dried in the shade for 48 hours and forming strength. Light Calcined Magnesia Ball Effect: The light-burned magnesia ball is used as the slag protection component regulator of the converter slag splash protection. Because the slag splashing protection requires the slag to have suitable viscosity and refractoriness, a reasonable slag composition is the key to implementing slag splash protection. The general slag can not be directly splashed to protect the furnace, and a certain amount of magnesium oxide ball needs to be added for adjustment, while replacing the use of dolomite, reducing the amount of slag and increasing the content of MgO in the slag.
Neutral Ramming Mass Without Chromium

Induction furnace Refractories

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Neutral Ramming Mass Introduction: Neutral ramming mass is with high abrasion and erosion resistance against molten steel and slag, dense sintered layer, long service life, low consumption per ton steel, easy construction and maintenance, energy saving. Changxing Neutral Ramming Mass Product used in Induction Furnace. An Induction furnace ramming material made from dead burnt magnesite and alumina. Specially bonded with clays and other chemical binders to achieve the desired sintering characteristics.Neutral Ramming Mass is used in the lining of induction furnaces. Quality of this is directly related to the heating performance of the furnaces. Neutral ramming mass is Widely used in industries like construction, abrasive blasting, rail road, water purification and foundry. Neutral Ramming Mass Advantages: Long service life;Low consumption per ton steel;Easy construction and maintenance;Energy saving.
Neutral Ramming Mass With Chromium

Induction furnace Refractories

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Neutral Ramming Mass With Chromium Introduction： Neutral ramming mass with chromium is developed with a clear vision to increase the campaign life of furnaces, used in place of silica or basic ramming mass. A higher Campaign life i.e., 8 to 10 times against silica ramming mass, promises a much increased productivity, which is upto twice the existing.Being neutral in nature, Neutral ramming mass with chromium can be used for melting any quality of iron or steel, be it in the presence of either acidic or basic nature of slag. Neutral ramming mass with chromium is an in-situ spinel forming ramming mass, it is proven to have an excellent thermal shock resistance.Against silica and other ramming masses it is non-hazardous and nature-friendly. Neutral Ramming Mass Aavantages: Neutral ramming mass with chromium has a very low thermal conductivity & coefficient of expansion.With a specific ability of sintering only on the surface, that is in contact with the molten steel, it is able to resist penetration & protrusion of cracks & pores into the refraction lining, thus providing safety from penetration of molten steel towards the heat sensitive crucible & it also ensures easy removal while replacing the lining.
Heating Furnace Insulating Castable

Reheating furnace Refractories

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Heating Furnace Insulating Castable Introduction：The Hating Furnace Insulating Castable is mainly used for the top of the furnace, the furnace wall and the bottom of the furnace.  Heating Furnace Insulating Castable Advantages:The main features are high compressive strength, good thermal shock resistance and good thermal insulation performance, shaped by casting.
Silica Ramming Mass

Induction furnace Refractories

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Silica Ramming Mass Introduction: High quality raw material, reasonable grain size distributions enable our silica ramming mass to offer longer service life than most of our competitors. Quartz as raw material, boric acid as bonding agent, premixed.  Changxing Refractory offers a complete choice of products which include silica ramming mass, acidic ramming mass and quartz ramming mass. Silica ramming mass, also known as acidic ramming mass, plays a crucial role in induction furnaces during melting of steel.  Silica Ramming Mass is used in the lining of induction furnace. Quality of silica ramming mass is directly related to the heating performance of the induction furnace. Better quality of lining results in the smooth working of furnaces, optimum output and better metallurgical control. Silica Ramming Mass Advantages: Long service life;Reasonable grain size distributions.  Suitable upto 1730ºC. Low down time for furnace lining. High corrosion resistance towards steel & slag.
$Plastic Refractory For Heating Furnace$

Plastic Refractory For Heating Furnace

Reheating furnace Refractories

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Plastic Refractory For Heating Furnace Introduction: Plastic refractory for heating furnace is mainly used for the top and the furnace wall of the heating section of the heating furnace.  Plastic Refractory For Heating Furnace Advantages:The main features are high temperature resistance, peeling resistance, good thermal shock stability and beating molding.
Filler for Well Block

Ladle Refractories

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Filler for Well Block Introduction：Filler for well block is made from corundum, magnesia based materials and additives. Filler for well block is placed on the steel cladding shell and located around the well block. The bottom brick is the joint filler between the seat brick and the bottom brick. It is fixed to the steel plate on the top of the seat brick and fixed to the joint. The pressure plate on the top of the material. Therefore, the service life and safety of the ladle are greatly improved, the production efficiency of the steel plant is improved, and the labor intensity is reduced. Filler for Well Block Advantages: Corrosion resistance, spalling resistance.