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Henan Changxing Refractory Material Co.,Ltd.

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Ladle Furnace Refractory

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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.
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.
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.
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.
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.
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.
Slide Gate Plate Mortar

Ladle Refractories

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Slide Gate Plate Mortar Introduction: Slide gate plate mortar is of good adhesion, high fire resistance, is the ideal product to fill the gap skateboard. Before installing the ladle skateboard, the steelmaking plant must smear the skateboard fire mud around the runner eye of the skateboard to ensure that the joint between the skateboard and the runner can be completely filled by the skateboard fire mud after the skateboard is installed, so as to achieve the goal of not leaking steel. In order to ensure that there is no leakage of steel after the skateboard is installed, it is necessary to strictly control the amount of smearing of the skateboard when installing the skateboard. Ensure that the smearing thickness and smearing range of the skateboard fire mud before the skateboard installation are just right, and prevent the skateboard fire mud between the skateboard and the nozzle from being over or under smeared, so as to prevent leakage caused by uneven thickness or gaps. Steel accidents can also avoid the problem that the sliding of the sliding plate is blocked and the production is affected. Slide Gate Plate Mortar Advantages: High fluidity, no sintering, no steel leakage.
Deoxidize

Ladle Refractories

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Deoxidize Introduction: Deoxidizer is used to reduce the content of Oxygen and other gases in molten steel.Our company has developed compound deoxidizer according to needs of steel smelting applicated to various forms of deox. Changxing refractory have a kind of deoxidizers that mainly applied in steelmaking industry and casting industry. Due to its many advantages as deoxidizer, this quality silicon carbide can keep welcomed in the market for many years. Deoxidation of steel is a steel making technological operation, in which concentration (activity) of oxygen dissolved in molten steel is reduced to a required level. Deoxidation is the removal of excess oxygen from molten metal. The procedure involves adding materials with a high affinity for oxygen, the oxides of which are either gaseous or readily form slags. The deoxidation of steel is usually performed by adding Mn, Si and Al, or rarely by adding Cr, V, Ti, Zr and B. Deoxidation is the last stage in steelmaking. In the Basic Oxygen Furnace (BOF) and other similar steelmaking practices the steel bath as the time of tapping contains 400 to 800 ppm activity of oxygen. Deoxidation is carried out during tapping by adding into the tap-ladle appropriate amounts of ferromanganese, ferrosilicon and/or aluminum or other special deoxidizers.  Deoxidize Advantages: Deoxidizer is good at deoxidization, and also can reduce harmful gases in molten steel, improve liquidity, reduce impurity to pure the molten steel, improve yield of alloy steel and reduce dosage or eliminate wire feeding process, simplify steel-making operation, improve the quality of steel, and whose economic benefit is remarkable.
Desulfurizer

Ladle Refractories

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Desulfurizer Introduction： Desulfurizer is the desulfurization dregs series developed by our company for adapting out furnace refining. This custom-designed,lime-based desulfurizers for efficient steel refining in the ladle are engineered to provide cost effective desulfurization during and after furnace tapping. This is achieved by the immediate production of a molten slag with an increased desulfurization potential. The rapid fluidization of the entire ladle slag increases the absorption of sulfur and non-metallic inclusions throughout each stage of ladle refining. Desulfurizer are available with specified levels of metallic aluminum or silicon to improve the efficiency of the desulfurizing process. This allows the specified sulfur levels to be reached within the time required.Desulfurizer is widely used in the process of pre-smelt casting-rapid taping-out furnace refining and the desulfurization rate can be as high as 40%-80%. Pre-melted MgO is also provided to generate rapid and ongoing refractory protection. Desulfurizer Advantages: 1. Do not need extra expense of investing equipment2. Using out furnace desulfurization in tapping course3. Easy using, economic, effective and high desulfurization rate4. Can be used before smelt-fast tapping- external furnace refining short flow steel-making technics5. Used in intermediate frequency furnace
Covering Agent

Ladle Refractories

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Covering Agent Introduction: Covering agent adopts compound carbon and the advanced method without carbon to increase the refractoriness.High basicity magnesium, calcium magnesium base coating agent, suitable for basic magnesium, magnesium calcium lining.When casting ultra-low carbon clean steel, cavering agent can effectively absorb impurities and purify molten steel, improve the stability of continuous casting slag and ensure the quality of steel. Covering Agent Advantages: Covering agent has longer insulation time, small capacity, good spreadablity, and small termal conductivity, and the net rate is even more than 90%. Also what is more, dust float rate is very small, and covering agent material do not bond to the furnace linning.