Introduction
White Fused Alumina(WFA), also called White Fused Aluminium Oxide, belongs to the electro fused artificial corundum group. White fused alumina is made from excellent Bayer-processed industrial alumina by fusing in an electric arc furnace at a high temperature of 2050degree centigrade-under carefully controlled conditions. It is white in color, a dense mineral, and has predominantly large crystals of Alpha Alumina. It’s an important mineral with chemical and high-temperature stability, great purity, hardness, and fireproof and refractory characters. White fused alumina is one of the most widely used raw materials for so many industrial fields, including refractory, bonded abrasives, and coated abrasives industries.
| Typical Chemical composition | |
| AL2O3 | 99.3%min |
| SiO2 | 0.06% |
| Na2O | 0.3%max |
| Fe2O3 | 0.05%max |
| CaO | 0.04%max |
| MgO | 0.01%max |
| K2O | 0.02#max |
| Typical physical properties | |
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 ℃ |
| Melting Point: | 2250 ℃ |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.75-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
| Available size: | |
| F8# F10# F12# F14# F16# F20# F22# F24# F30# F36# F46# F54# F60# F70# F80# F90# F100# F120# F150# F180# F220# | |
Product Feature ：
White fused alumina is very pure and extremely hard. Aluminum oxide is used to anchor pattern creation prior to coating or bonding, rust, scale removal, sweeping, matte surface finish of steel, stainless steel, aluminum, non-ferrous metals, glass, stone and other surfaces. It can be recycled and will not leave residues on the surface of the workpiece
Application：
1、variety of blasting and lapping
2、The process of beautifying glass or acrylic
3、The process of blasting TV screens
4、The cutting of silicon wafer
5、The process of cleaning and blasting tooth model
6、Precision sand casting
7、 ceramic additives/wear resistant layer
