JM23 Caramida de izolare Mullite

1. JM series mullite bricks are divided into sintered mullite bricks and fused mullite bricks. Sintered mullite bricks are made of high-alumina bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as a binder, and forming and firing. Fused mullite bricks are made of high alumina, industrial alumina and refractory clay as raw materials, and charcoal or coke fine particles are added as reducing agents. After molding, they are manufactured by reduction fusion method. The crystallization of fused mullite is larger than that of sintered mullite, and its thermal shock resistance is better than that of sintered products. Their high temperature performance mainly depends on the content of alumina and the uniformity of mullite phase and glass distribution.

2. JM23 mullite brick has high refractoriness, which can reach above 1790℃. The starting temperature of load softening is 1600～1700℃. Compressive strength at room temperature is 70～260MPa. Good thermal shock resistance. There are two types of sintered mullite bricks and fused mullite bricks. Sintered mullite bricks are made of high-alumina bauxite clinker as the main raw material, adding a small amount of clay or raw bauxite as a binder, and forming and firing. Fused mullite bricks are made of high alumina, industrial alumina and refractory clay as raw materials, and charcoal or coke fine particles are added as reducing agents. After molding, they are manufactured by reducing electric melting. The crystallization of fused mullite is larger than that of sintered mullite, and its thermal shock resistance is better than that of sintered products. Their high temperature performance mainly depends on the content of alumina and the uniformity of mullite phase and glass distribution.

3. JM23 mullite insulation brick is a new type of refractory material in our country, which can directly contact the flame. It has the characteristics of high temperature resistance, high lightness, low thermal conductivity, good thermal shock resistance, and significant energy saving effect.

4. JM23 mullite brick use: suitable for lining of cracking furnace, hot air furnace, ceramic roller kiln, electric porcelain drawer kiln, glass crucible and various electric furnaces. Used for hot blast stove top, blast furnace body and bottom, regenerator of glass melting furnace, ceramic sintering kiln, dead corner lining of petroleum cracking system, etc. Mullite brick has the characteristics of high softening temperature under load, compact structure, low porosity, and good corrosion resistance.

5. JM23 mullite brick performance: high refractoriness, up to 1790 degrees Celsius. The starting temperature of load softening is 1600-1700 degrees Celsius. Compressive strength at room temperature is 70-260Mpa. Good thermal shock resistance.