High Alumina Refractory Brick Good Use Of Quality
High alumina bricks are commonly used in China for steel, steelmaking, hot-blast stove, furnace roof, blast furnace, reflective furnace, High Alumina Refractory Brick rotary kiln lining, such as industrial kilns, the primary composition of high alumina bauxite, silicon-line stone family of minerals (including blue spar, red Cornerstone, silicon wire, etc.), artificial composition of materials, such as industrial alumina, mullite, fused corundum and so on.
High-alumina brick has the good application quality, the fire resistance is high, the service life is long and so on characteristic, is the industrial kiln stove first Use refractory brick product. The general use of units in the acquisition time can not correctly distinguish the quality and grade of high alumina brick, resulting in a high-priced purchase of low-grade goods, and then reduce the use of the kiln life, High Alumina Refractory Brick so find the Refractories network here to briefly describe the acquisition of high alumina bricks when the quality of the bricks.
A neutral refractory material with alumina content above 48%. The raw materials with higher content of bauxite or other alumina are formed and calcined. High thermal stability, New over 1770 Shan. Slag resistance is better. It is used for lining of steelmaking furnace, glass furnace, cement back converter, etc.
High load soft. Low creep high alumina bricks are based on super bauxite. Fused corundum, fused mullite as the main raw material made of high-grade refractory. High Alumina Refractory Brick The product has low temperature creep. Strong corrosion resistance. Shock good stability and other advantages, suitable for large and medium-sized hot-air stove, it is a new type of hot-air stove for China's high-quality, High Alumina Refractory Brick high-grade imports of refractory domestic development of the next successful road, has been included in the national "Spark Program" project.
A, refractory degree
The fire resistance of high alumina bricks is higher than that of clay bricks and half silica bricks, and 1750, which belongs to advanced refractory materials. High Alumina brick $literal more, close to the neutral refractory, can resist acidic slag and alkaline slag erosion, because it contains SiO2, so the ability to resist alkaline slag than acid slag weak.
Use of high alumina bricks
b, load softening temperature
Because of high $literal high aluminum products, less impurities, the formation of easy to melt the vitreous less, so the load softening temperature than the clay brick, but because Mo to stone crystallization did not form reticular structure, so the load softening temperature is still not high silica brick.
C, Slag resistance
High alumina refractory bricks are more $literal, High Alumina Refractory Brick close to neutral refractory, can resist the erosion of acidic slag and alkaline slag, because of which contains SiO2, the ability of resisting alkaline slag is weaker than that of resisting acidic slag.
Mainly used for masonry blast furnace, hot-blast stove, furnace top, blast furnace, reflective furnace, rotary kiln lining. In addition, the high alumina bricks are widely used as the regenerative lattice brick of open hearth, the plug head of pouring system, the water mouth brick and so on. But the high alumina brick price is higher than the clay brick, therefore uses the clay brick to be able to satisfy the request place not to use the high alumina brick.