This product selected superfine calcined bauxite (Al2O3 ≥ 85%, Bulk density ≥2.65g/cm3) as main raw material. And it is molded by high tonnage molding machine and sintered by high temperature furnace. It has good characteristics of high strength, high density, high-temperature resistance and small reheating linear change rate. It is widely used in blast furnace stack, blast furnace bosh and key parts of other industrial furnace.
|Apparent porosity %||≤19|
|Bulk density g/cm3||≥2.5|
|Cold crushing strength Mpa||>60|
|Refractoriness under load KD,ºC||1500|
|Reheating linear change 1500ºC×3h %||0~ -0.2|
|Used part||furnace bosh, furnace stack|