White fused alumina
- Courier
- In detail
- Country of manufactureChina
- Annual production capacity400,000MT
White corundum (WA) is manufactured from Alumina powder by crystal electro-fusion process at high temperature of over 2000C.
Its hardness is a little higher and toughness is a little lower than brown corundum.
It has the advantages of high purity, good sharpness, strong grinding force, less calorific value, high efficiency, good acid/alkaline corrosion resistance, high temperature resistance, good thermal stability, etc.
Applications:
It has been widely used to make bonded and coated abrasive tools for grinding carbon steel, alloy steel ;as materials of super precision grinding and polishing, high quality refractory, precision casting; materials of carrier of chemical catalytic agent and specialized ceramics; to atomize glass or acrylic arts.
1. for precision casting and high-grade refractory.
2. for bake lining, Catalyst carrier, friction products
3. for pressure blasting hard abrasives; Refractory industry
4. for wet and dry blasting, grinding, lapping and polishing media
5. for abrasive tools: grinding wheel, Lapping and polishing non-skid title;
6. for bonded and coated abrasives, Thermal Spraying (Plasma Spraying)
7. for lapping & Micro-Blasting applications .refractories, Ceramics and Tiles.
Chemical Composites:
| Applications |
Specifications |
Chemical Composites | Magnetic Substance |
||||
| Al2O3 | Na2O | SiO2 | |||||
| ABRISIVE |
F12# --- 80# | ≥99.40 | ≤0.40 | ≤0.03 | —— | ||
| 90# --- 150# | ≥99.30 | ≤0.40 | ≤0.05 | ≤0.03 | |||
| 180# -- 240# | ≥98.20 | ≤0.40 | ≤0.03 | —— | |||
| 1# --- 63# | ≥99.30 | ≤0.40 | ≤0.05 | ≤0.03 | |||
| REFRACTOR MATERIALS |
180# --- 0 200# --- 0 320# --- 0 |
≥99.30 | ≤0.40 | ≤0.05 |
≤0.06 | ||
| POWDER |
0 -- 1mm 1 --- 3mm 3 --- 5mm 5 --- 8mm 8 --- 12mm |
≥99.00 | ≤0.40 | ≤0.02 | ≤0.10 | ||
Mechanical Properties:
| Item Description | |
| Color | White |
| Crystal Form | Trigonal System |
| Hardness(Mohs) | ≥10 |
| Melting Point(C) | 2250 |
| Max. Operating Temperature | 1900 |
| True Density(g/cm3) | ≥3.90 |
| Line Expansion | 7-9 |