Description
Characteristic
1. High hardness
2. High purity
3. Good self-sharpening
4. Strong grinding ability
5. Acid-alkali corrosion resistance
6. High temperature resistance and
7. Good thermal stability
Production process
White fused alumina was made from the high quality by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha—Al2O3.
Application
1. Spraying and grinding.
2. High-end products, crafts or hardware products surface beautification processing.
3. Precision casting, silicon crystal cutting, advanced refractories and ceramic additives.
4. Bonded abrasives and coated abrasives.
5. Processing harder and stronger tensile strength materials such as quenching steel, alloy steel, high speed steel and high carbon steel.
6. Ultra-precision Grinding and Polishing in Crystal and Electronics Industry, Precise Surface Treatment of Metal and Optical Products
7. Contact media, insulators and precision casting sand.
Physical Properties
| Color | White |
| Moh’s hardness | 9.0 |
| Bulk density | 1.75-1.95g/cm3 |
| Real density | 3.95g/cm3 |
| Melting point | 2250℃ |
| Maximum service temperature | 1900℃ |
Chemical Analysis
| Al2O3 | Fe2O3 | Na2O | SiO2 | |
| Sectional sand | 99.5% | 0.04% | 0.06% | 0.3% |
| Fines | 99.0% | 0.1% | 0.08% | 0.35% |
| Grains | 99.5% | 0.04% | 0.04% | 0.23% |
| Micro powder | 99.2% | 0.06% | 0.08% | 0.35% |
Size
| Grits | 0-1mm 1-3mm 3-5mm 5-8mm |
| Fines | 100#-0 200#-0 320#-0 |
| Grains | 8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# 240# |
| Powder | #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 |
Packing and delivery
1. 25kg woven bag, 40 woven bags/jumbo bag
2. 25kg woven bag, 40 woven bags/pallet
3. 25kg paper bag, 40 paper bags/pallet
4. 25kg paper bag, 40 paper bags/paper box
5. customize packing
Time : 8-10 days
Ways : air transport/railway transport/waterway transport
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