The Difference And Characteristic Of High Alumina Brick
High aluminum brick usually refers to a refractory brick with Al2O3 content of more than 48%, which is mainly based on natural senior bauxite clinker as raw material, adding soft or semi-soft clay as a binder to form mud, and then through molding, drying, firing and a refractory brick. The refractoriness of high aluminum brick is about 1770 degrees Celsius, and the load softening temperature is 1420℃-1550℃. High alumina brick is mainly used for laying blast furnace, hot blast furnace, electric furnace top, blast furnace, reverberatory furnace, rotary kiln lining.
High aluminum bricks can be divided into: according to the different Al2O3 content: Three high aluminum brick (Al2O3 content between 48% and 60%) Two high aluminum brick (Al2O3 content between 60% and 75%) One high aluminum brick (Al2O3 content above 75%) extra high aluminum brick (Al2O3 above 80%), can also be divided according to the composition of minerals: Low mullite, mullite, Mullite - corundum, corundum mullite and corundum.
