Refractory products directly combined with spinel and magnesia chromite as the main crystal phases. This brick is made from high-purity sintered magnesia and chromite with SiO2 less than 2% as raw materials, and is sintered at high temperature.
The products fired at 1750 ℃ have a very high degree of direct bonding. Used in the furnace structure to withstand severe stress and slag erosion, it almost completely replaces silicate bonded bricks.
Direct combination magnesia chrome brick is a product made from high-purity or sub high purity sintered or fused magnesia sand and chromium concentrate as raw materials.
This product has few impurities and is fired at high temperatures. The glass phase is concentrated in the triangular region of the crystal phase, and the crystal phase is directly combined with the crystal phase. The performance is directly combined. Brick sintering belongs to solid-phase bonding, so the product has high mechanical strength at high temperatures, good slag resistance, oxidation resistance, strong iron permeability, and stable deposition at high temperatures. Suitable for large-scale dry process cement rotary kiln firing zone, directly combined with bricks, widely used in open hearth furnace top, electric arc furnace, copper smelting converter, flash furnace, RH, DH vacuum treatment device, external refining VOD furnace, AOD furnace, cement rotary kiln, etc.
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