Fused mullite is made of high-purity bauxite, quartz sand and industrial alumina, which are smelted at high temperature in an industrial electric arc furnace. The fused mullite has white color, low residual carbon, low porosity, high hardness, low impurity content, high bending strength, high load softening temperature, well-developed needle network crystals, uniform expansion, good thermal shock stability, High temperature creep value is small, good chemical resistance and other characteristics. With its good thermal shock resistance and wear resistance, fused mullite is used in desulfurization guns, mixing heads, glass kiln furnace lining bricks, mullite bricks, large smelting blast furnace hot blast furnace bricks, and blast furnace low creep Silica stone bricks, metallurgy, ceramics, kiln furniture, saggers, building materials, sheds, petrochemicals, power and casting industries are the raw materials of refractory materials.

Mullite is a high-quality refractory raw material, this type of mineral is relatively rare. Mullite is a mineral produced by aluminosilicate at high temperature, and mullite is formed when aluminosilicate is artificially heated. It is mostly used as a thermal barrier coating in C / C composite materials and is widely used.

Mullite can be used in refractory materials, ceramics, metallurgy, casting, electronics and other industries. It is a fire-resistant coating, low-temperature glaze, honeycomb ceramic, sanitary ware blank, precision casting model, acid or alkali-resistant refractory. The high-temperature mullite products produced with mullite have the characteristics of high temperature resistance, high strength, small thermal conductivity, and good energy saving effect. They are suitable for petroleum cracking furnace, metallurgical hot air furnace, ceramic roller kiln, tunnel kiln, electric porcelain drawer The lining of the kiln, glass crucible kiln and various electric furnaces can directly contact the flame.

Features

Good thermal shock resistance

High-temperature creep is small

Load softening temperature is high

High mullite phase

Volume density high, high hardness

Uniform expansion

Low porosity，High refractoriness

Anti chemical corrosive good

High strength and low thermal conductivity,

Significant energy saving effect

Application

1. Ceramic kiln furniture, shed board, sagger and other mullite cordierite kiln furniture industry:

2. Application in mullite light brick products;

3. Application in advanced clay products: such as ceramic burner products , CDQ products, products, and low-creep clay products for hot blast stove;

4. Applied in high-end precision casting industry.

Physical And Chemical Indicators