Light weight high alumina brick, usually called insulation refractory bricks, also known as insulation refractory bricks. First of all from the literal to understand, light high alumina brick and heavy high-alumina brick weight is very different products. Light weight high alumina brick, also known as high insulation aluminum brick, its essence is the purpose of insulation and insulation function. In normal use does not directly contact with the furnace temperature, is a close to the furnace wall, with insulation and insulation role of refractory brick products.High alumina brick, also known as high-alumina brick, its own weight than light weight high alumina brick on a good many times in the use of the process is not to heat insulation, more importantly, for the fire temperature, And direct contact with the furnace flame, so high alumina brick is usually a high temperature role.