Products

Calcined Alumina

Name: Calcined Alumina
Composition: Aluminum oxide
Size: Can be customized according to customer requirements
Payment:
30% T/T in advance for more than USD2000, balance pay before shipment.
100% T/T payment for amount less than USD2000.

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Description

Calcined alumina use aluminum hydroxide powder or industrial grade aluminum oxide as raw material through calcination in high-temperature tunnel kiln. It is white, with high hardness, good wear resistance, high temperature resistance and corrosion resistance. The refractory materials and ceramics made by it are suitable for grinding high carbon steel, high speed steel and quenched steel. It can also be used as grinding and polishing material, foundry sand in precision casting, spraying material, chemical catalyst carrier, special ceramic products, high-grade refractory, etc.

Calcined-Alumina-5

Product Specification:

Items	Index
Al₂O₃	≥99%
a-Al₂O₃	≥92%
Na₂O	≤0.2%
SiO₂	≤0.04%
Fe₂O₃	≤0.05%
Discretionary Reduction	≤0.02
Specific Gravity	≥3.94g/cm³

Product Features:

1, High purity

2, High whiteness

3, Reasonable true density

4, Good thermal stability

5, Uniform size distribution

6, Good liquidity

7, High temperature resistant

8, Good polishing effect

Product Application:

The calcined alumina that though ultrafine grinding by using ball mill can be made into water agent grinding liquid, alumina polishing liquid, which is suitable for the polishing and grinding of all kinds of piezoelectric crystal, semiconductor, wafer, as well as also suitable for the surface grinding and polishing of precision components such as the glass shell and glass screen of kinescope, the screen glass of liquid crystal display (LCD), magnetic materials, etc. At present, the consumption of calcined alumina powder used in ultrafine grinding or polishing wafer and precision parts is tens of thousands of tons per year in China . In addition, with the rapid development of wireless communication (such as mobile phones), home appliances, computers, testing equipment and other industries, the consumption of precision abrasives will also increase rapidly. We are a professional supplier of calcined alumina powder in China.

Product Packing:

Storage: store tightly sealed in a cooling and dry place with good ventilation. Avoid direct sunshine