China Manufacturer for Ceramic Ball Valve - Corundum-mullite Chute – Guiyuan

Product Details

Product description:

Corundum-mullite composite ceramic provides excellent thermal shock resistance and mechanical property. By material and structure design, it can be used for maximum application temperature of 1700℃ in oxidizing atmosphere.

The ceramic chutes are suitable for aluminum melting furnace, castin table, and transportation of aluminimu between furnace degassing and filtration.

Advantage:

• Good chemical compatibility

• Excellent thermal shock resistance and mechanical property

• Anti-oxidation

• Resistance to metallic melt corrosion

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Materials:

Alumina Ceramics

Alumina Ceramics is the most widely used advanced ceramic material. Owing to its highly strong ionic inter-atomic bonding, alumina offers good performance in terms of chemical and thermal stability, relatively good strength, thermal and electrical insulation characteristics at a reasonable price. With a range of purities and also the relatively low cost in raw material production it is possible to utilize alumina for wide ranging applications across a variety of different industries.

Mullite Ceramics Alumina

Mullite occurs very rarely in nature because it only forms at high temperature, low pressure conditions, so as an industrial mineral, mullite has to be supplied by synthetic alternatives. Mullite is a strong candidate material for advanced ceramics in industrial process for its favourable thermal and mechanica properties: low thermal expansion, low thermal conductivity, excellent creep resistance, suitable high temperature strength and outstanding stability under harsh chemical environments.

Dense Alumina & Dense Cordierite

Low water absorbtion (0-5%)

High density, High heat capacity

Large specific surface area, greater thermal efficiency

Strong anti-acid, anti-silicon, anti-salt. Low block rate

Silicon Carbide Ceramics

Silicon carbide is notable for its hardness, high melting-point and high thermal conductivity. It can retains its strength at temperature as high as 1400 °C and offers excellent wear resistance and thermal shock resistance. It has well-established and wide-spread industrial applications as catalyst supports and hot-gas or molten metal filters because of its low thermal-expansion coefficient and good thermal-shock resistance as well as excellent mechanical and chemical stability at elevated temperature environments.

Cordierite Ceramics

Cordierite has a superior thermal shock resistance due to their intrinsic low coefficient of thermal expansion (CET), coupled with relatively high refractoriness and high chemical stability. Therefore, it is often used as high temperature industrial applications, such as: heat exchangers for gas turbine engines; honeycomb-shaped catalyst carriers in automobile exhaust system.

Zirconia Oxide Ceramics Corundum

Ceramics Zirconia can be an ideal material of high-strength and high-toughness when proper compositions, such as: magnesium oxide (MgO), yttrium oxide, (Y2O3), or calcium oxide (CaO), are added to control an otherwise destructive phase transformation.The micro structural features of zirconia ceramics also make it an engineering material choice of wear and corrosion resistance, damage and degradation tolerance in a wide range of applications.

Corundum Ceramics

1. high purity: Al2O3> 99%, good chemical resistance

2. temperature resistance, long-term use at 1600 °C, 1800 °C short-term

3. thermal shock resistance and good resistance to crack

4. slip casting, high density, high purity alumina