Hellow Ball Insulating Fire Proof Brick , Refractory Fire Bricks White 90-95% Al2O3

Hellow Ball Insulating Fire Proof Brick , Lining Refractory Material White Al2O3

Al2O3 Hellow ball Insulating Fire Proof brick uses fused corundum, sintered alumina and industrial alumina as the main raw materials, made of heat-resistant refractory products, with acid and alkali resistant and strong anti-reduction ability, good thermal shock resistance characteristics.

l2O3 Hellow ball Insulating Fire Proof brick can be used under 1700°C for a long time. Its production process adopts the foam method and the burn-in addition method. Two kinds of foam methods are: using rosin soap foam agent and finely pulverized raw materials, binding agents, etc. to prepare foam mud, casting molding, drying, firing, shaping, and selection.Al2O3 Hellow ball Insulating Fire Proof brick produced by the foam method are characterized by uniform structure, low thermal conductivity, and good thermal insulation properties.

Al2O3 Hellow ball Insulating Fire Proof brick is light weight with high compressive strength, low thermal conductivity, little pemernent linear change, and good thermal shock resistance.

Al2O3 Hellow ball Insulating Fire Proof brick can be used in the heat insulation layer of high-temperature thermal equipment or in furnaces directly affected by flames. The work of precision thermal equipment is lining, but it is not suitable for direct contact with the erosion of molten liquid and molten slag. The working temperature depending on the product purity is generally up to 1650 ~ 1800 °C.