Description
white aluminium oxide grain is made from high quality alumina by melting above 2000° C in the electric arc furnace and then cooling. It is with high purity, great self-sharpening, acid and alkali resistance, high temperature and stable thermal performance. Its hardness is a little higher than brown fused alumina. It is with low toughness, great grinding ability, small heat and high efficiency.
Physical and chemical analysis
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Physical properties
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Chemical compositions
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Value of specifications (%)
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Hexagonal
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Al2O3
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≥ 99.55
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Main crystal body
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Al2O3
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Color
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white
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Na2O
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≤ 0.23
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Grain density
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≥ 3.9 g/cm3
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Bulk density
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1.75-1.95 g/cm3
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SiO2
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≤ 0.03
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Morse hardness
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≥ 9
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Linear expansion coefficient(1/° C)
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8.3x10-4
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Fe2O3
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≤ 0.04
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Loss on ignition (%)
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≤ 0.08
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Performance and advantages of sandblasting:
1. Not affecting the color of the processing cases;
2. Sandblasting in the non-iron process;
3. High speed processing and quality;
4. Containing a very low amount of iron oxide, suitable for non-ferrous blasting operations.
4. Containing a very low amount of iron oxide, suitable for non-ferrous blasting operations.
Usage:
1. Available research in a variety of blasting and light(lapping)operations;
2. Bolero or spay acrylic art of beauty processing;
3. The process of blasting the TV screen;
4. The cutting of silicon water;
5. The tooth model of clean sand;
6. Precision sand casting;
7. High refractory and other ceramic additives