Alumina bricks

     High-alumina refractory bricks / alumina bricks from high bauxite, sillimanite, natural or synthetic corundum, alumina, industrial by ingredients, mixing, forming and other processes and finally by the high temperature roasting. Which is characterized by its refractoriness, load softening temperature higher than the clay bricks, temperature up to 1400 ~ 1500 ℃; preferably a neutral refractories, slag resistance and thermal shock resistance, thermal stability disadvantage lower rewind shrink larger, more expensive.

     High-alumina refractory bricks / alumina bricks of ω (AL2O3) is 48% to 75%, such as alumina bricks Al2O3 content of more than 90 percent, called corundum brick. According to the level of the alumina content is divided into a variety of brands. Press alumina bricks Al2O3 content is usually divided into three classes: Ⅰ etc. -Al2O3 content> 75%; -Al2O3 Ⅱ content as the 60 ~ 75%; Ⅲ et-Al2O3 content of 48 to 60%.

     High-alumina refractory bricks / alumina brick is mainly used for masonry blast furnace, hot stove, electric stove top, blast furnace, reflection furnace, rotary kiln lining. In addition, high alumina brick is also widely used open hearth regenerative checker bricks, pouring system with plug head, nozzle brick. But price than brick high alumina brick, so with clay where you can meet the requirements without the use of high alumina bricks.