Brand Name: sicheng Abrasives
Model Number: 12-240mesh 240-10000mesh
Place of Origin: henan
Description of White Fused Alumina
White fused alumina is a kind of high-grade refractories material. It was made in high quality Alumina by melting above 2000℃ in electric arcfurnace.The molten material undergoes cooling, crushing, grinding, sieving,
classifying and, of course, various quality checking procedure before it is packed
for delivery. It has the advantages of high purity Al2O3>99.3%,good polishing effect: brightness, no scratch,strong grinding ability,high hardness.
Usage:
1. Precision sand casting
2. The cutting of silicon wafer
3.The process of blasting TV screens
4.The process of beautifying glass or acrylic
5.High refractory and other ceramic additives
6. The process of cleaning and blasting tooth model, light lapping operations
The physical and chemical analysis:
Type |
WFA |
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Grit |
Fine Powder |
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guarantee |
typical |
guarantee |
typical |
||
Chemical |
Al2O3 |
≥99 |
99.24 |
≥99 |
99.12 |
SiO2 |
≤0.2 |
0.12 |
≤0.3 |
0.19 |
|
Fe2O3 |
≤0.1 |
0.04 |
≤0.15 |
0.08 |
|
Na2O |
≤0.35 |
0.3 |
≤0.45 |
0.33 |
|
Actual Density(g/cm3) |
≥3.9 |
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Bulk Density(g/cm3) |
1.75-1.95 |
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Mons’ hardness |
9.0 |
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Grit Size(mm) |
8-5mm, 5-3mm, 3-1mm, 0-1mm 320mesh-0, 280mesh-0, 240mesh-0, 200mesh-0, 180mesh-0 ( Other special specifications could be supplied as required ) |
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Fine Power(mesh) |
F230 F240 F280F320 F360 F400F500 F600F800 F1000 F1200 F1500 F2000 ( Other special specifications could be supplied as required ) |
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Inspection Standard |
GB/T21114-2007 GB/T2999-200 |