Difference between calcined magnesia and large crystalline fused magnesia

Re fired magnesia is mainly made of 46% magnesite ore, one layer of coal and one layer of magnesite calcined at 1600 ℃ - 1800 ℃ in tin kiln. The production process is that two tons of ore produce one ton of heavy burned magnesia, and the products are divided into three grades; 1、 Re fired magnesia in front of the kiln, 2. Under fired re fired magnesia, 3. Large pieces of re fired magnesia. The main color of re fired magnesia products is hard reddish brown. The re fired magnesia products are characterized by high fire resistance.

Application of re fired magnesia products: the products are used for magnesia brick, magnesia aluminum brick, magnesia chrome brick, gunning material, castable, dry material, coating material, furnace repair material, asphalt, casting, fire prevention and thermal insulation materials, flux auxiliary materials, electrical steelmaking furnace, heating furnace, rotary furnace, steelmaking, electric furnace bottom and ramming furnace lining.

Large crystalline fused magnesia products are mainly prepared by melting magnesia 0-3 particles with a content of more than 90% in an electric arc furnace. The product has high purity, large crystalline particles, compact structure, strong slag resistance and good thermal shock stability. It is not only an excellent high-temperature electrical insulation material, but also an important raw material for making high-grade magnesia brick, magnesia carbon brick and amorphous refractory. It is widely used in metallurgy, chemical industry, national defense, scientific research, aerospace, home appliance components, etc.

Characteristics of large crystalline fused magnesia products: high purity, large crystalline particles, high melting point and dense structure; Good thermal shock stability; Good high temperature flexural strength; Good slag resistance and corrosion resistance; Strong thermal conductivity and high insulation.

Application of large crystalline fused magnesia products: large crystalline fused magnesia is used as lining refractory of steel-making furnace. It is a high-quality high-grade alkaline refractory raw material for manufacturing refractory bricks and amorphous refractory materials; It can also be used as filler for making thermocouple and thermal insulation materials (household appliances, etc.); It can also be used for ceramic raw materials and sintering additives, metallurgy, building materials, chemical industry, national defense, medical devices, etc.

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