The difference between dead burnt magnesia and large crystalline fused magnesia
The dead burnt magnesia is mainly made of 46% magnesite ore, which is calcined at 1600 °C-1800 °C through a layer of coal of magnesite in the iron kiln. The production process is that two tons of ore produce one ton of burnt magnesia. The products are divided into three grades. First, the calcined magnesia before the kiln, the second, the burnt magnesia, and the large burnt magnesia. The main color of the burnt magnesia product is hard reddish brown, and the burnt magnesia product is characterized by high refractoriness.
Use of dead burnt magnesia products: The products are used in magnesia bricks, magnesia-aluminum bricks, magnesia-chrome bricks, spray materials, castables, dry materials, spread materials, repair materials, asphalt, casting, fireproof and thermal insulation materials, flux accessories, Electrical steelmaking furnace, heating furnace, rotary furnace, steel making, electric furnace bottom and lining.
The large crystalline fused magnesia product is mainly prepared by melting 90% of the magnesia 0-3 particles in an electric arc furnace. The product has high purity, large crystal grain, compact structure, strong slag resistance and good thermal shock resistance. It is an excellent high-temperature electrical insulating material and important for making high-grade magnesia bricks, magnesia carbon bricks and amorphous refractories. raw material. Widely used in metallurgy, chemical, national defense, scientific research, aerospace, household appliances and other components.
Characteristics of large crystalline fused magnesia products: high purity, large crystal melting, high knot, compact structure; good thermal shock resistance; good high temperature flexural strength; good slag resistance and corrosion resistance; High performance and high insulation.
Large crystal fused magnesia product use: Large crystal fused magnesia is used as lining refractory material for steelmaking furnace. It is a high-quality alkaline refractory raw material for manufacturing refractory brick and amorphous refractory material. It can also be used as filler for making. Thermocouples and thermal insulation materials (home appliances, etc.); can also be used for ceramic raw materials and sintering auxiliaries as well as metallurgy, building materials, chemicals, national defense, medical equipment, etc.
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