The primary characteristics of fused magnesia products: characteristics of fused magnesia products of crystals is large, compact structure, high melting point (2800 ℃), stable chemical performance, compression strength, insulation function is strong, erosion resistance, corrosion resistance, is metallurgy, building materials, light industry, lining and the loose material, the important raw materials for steel, cement, glass, non-ferrous metal exercise indispensable important refractory materials, etc.

Electrofused magnesia is mainly used to use 47% magnesite, melting in an electric arc furnace. The chemical indexes of electrofused magnesia can be divided into 6 major items; 1. Magnesium oxide content; 2, silica content; 3, iron trioxide content; 4, aluminum oxide content; 5. Caustic soda; 6. Body density; Fused magnesia products have high purity, large crystalline particles, compact structure, slag resistance material, good thermal shock stability, is a kind of high temperature electrical insulation material, is also an important raw material for manufacturing magnesia brick, magnesia carbon brick and amorphous refractory materials.

Melted magnesia is made of fine A-grade natural magnesite or high purity light-fired magnesia particles by melting in an electric arc furnace. The product has high purity, large crystalline particles, compact structure, strong slag resistance, good thermal shock stability, is a kind of high temperature electrical insulation material, is also an important raw material for manufacturing magnesium brick, magnesium carbon brick and amorphous refractory materials. Large-crystal fused magnesia products mainly choose 0-3 magnesium oxide particles with more than 90% content, which are produced by melting in an electric arc furnace. The product has high purity, large crystalline particles, compact structure, strong slag resistance, good thermal shock stability, is a kind of high temperature electrical insulation material, is also an important raw material for the production of magnesia brick, magnesia-carbon brick and unshaped refractories. Widely used in metallurgy, chemical industry, national defense, scientific research, aerospace, household electrical components, etc. Magnesia manufacturers.

The dried magnesia ferrite alumina spinel brick and magnesia olivine composite brick were put into a high-temperature furnace, heated to 1550℃, and then held for 5h for firing treatment. The composite bricks of mafe-aluminum-spinel and magnesium olivine were prepared and taken out after cooling for photographing and testing. At 1500℃ and 1550℃, the line change rate of magnesia ferrite alumina spinel and magnesia olivine composite brick after firing. The sintering temperature is 1500℃, respectively, the composite brick samples of electrofused magnesia-alumina-ferrite spinel and magnesia-olivine brick and the composite brick samples of sintered magnesia-alumina-ferrite spinel and magnesia-olivine brick. The sintering temperature is 1550℃, the composite brick samples of electrofused magnesia-alumina-ferrite spinel and magnesia-olivine brick and the composite brick samples of sintered magnesia-alumina-ferrite spinel and magnesia-olivine brick respectively. At the same sintering temperature, the line change rate of electrofused magnesia-alumina-spinel and magnesia-olivine brick composite brick is lower than that of sintered magnesia-alumina-spinel and magnesia-olivine brick composite brick.