How to make magnesia carbon brick

The article describes in detail the process of how to make magnesium carbon bricks. What’s more, the article also expresses some other issues related to magnesia carbon bricks. Weclcome to visit our factory to see magnesium carbon brick product process.

Magnesia carbon brick Production process

The steps in the production process of MgO-C bricks are described here. First, the refractory raw materials are graded into coarse, medium, and fine sizes and are classified as necessary.  Next, they are mixed and kneaded with a binder in pre-determined blend proportions by parti­cle size. The kneaded mixture is press formed into bricks. 

By a magnesia-carbon brick there is understood a brick based mainly on the components burned magnesite, carbon in the amount of typically 5-30% carbon by weight and a suitable binder. Magnesia-carbon bricks are used in the wear lining of a converter for steel production, and are substantially more resistant to wear than magnesite bricks in which the percentage of carbon used is not so high. The wear lining of a converter can, depending on the price of the bricks, be wholly or partly constructed from magnesia-carbon bricks, especially at the location of the trunnions of the converter, where the wear is greatest.

Magnesia Carbon Brick for sale

Production process for MgO-C bricks

Uniaxial forming with an oil press or a friction press is normally used as the pressing equipment. The magnesia aggregate and graphite in MgO-C bricks show orientability depending on the forming di­rection of the press. The strength and thermal conductivity of MgO-C bricks show anisotropy . It is hence important to consider the forming direction of bricks when laying the bricks. A cold isostatic press (CIP) with small anisotropy is also used for the production of large refractory products such as bottom blowing tuyere bricks and taphole bricks.

Formed bricks are dried to remove moisture and other volatile components, processed, and coated as needed, visually inspected for cracks, chips, and other defects, and dispatched after removing defective bricks.

MgO-C (magnesia-carbon) refractories are widely used in several steelmaking linings. These refractories are exposed to extreme stress due to high temperatures (T > 1600 °C) required to cause the metallurgical reactions. These working conditions produced refractory wear through various related processes. The different types of degradation that the material suffers can be from thermochemical or thermomechanical origin.

Method for the manufacture of a magnesia-carbon brick, comprising the steps of:

a. preparing a mixture comprising:

1. burned magnesite

2. carbon

3. a binder solution comprising:

3.1 pre-condensed novolak resin

3.2 a solvent for this novolak resin.

4. a hardener for the resin.

b. pressing a brick from the mixture.

The method also provides bricks produced by the method and a converter having a wear lining consisting at least partly of such bricks.

FAQ:

How are magnesia carbon bricks made?

The traditional magnesia carbon brick manufactured by the synthetic tar binder in the cold mixing process is hardened during the process of tar damage and the necessary strength is obtained, thus forming isotropic glassy carbon.

What is the use of magnesia carbon bricks?

MgO-C (magnesia-carbon) refractory bricks are widely used in steel industry, the primary consumer of refractory linings, such as basic oxygen furnaces, electric arc furnaces, and ladle furnaces.

What is the raw material for magnesia carbon bricks?

Sea water magnesia is mainly used in SAIL as the main raw material for manufacturing of magnesia carbon bricks.

What is magnesia carbon brick?

Magnesia-Carbon brick is resin-bonded brick made from dead-burned or fused magnesia and graphite. Anti-oxidant is added if required. Our control over bonding agents mean that these products are classed as eco friendly in terms of steel production.

In conclusion, Welcome to learn how to make magnesia carbon bricks and learn other information about magnesia carbon bricks. If you are interested in other refractory products and production processes, please feel free to browse our website or visit our factory.

Magnesia Carbon Bricks