White fused aluminum oxide / aluminum oxide / WA/WFA/abrasive/refractory
- Courier
- In detail
Specifications
white fused alumina powder
1 High Al2O3 99.8%min;
2 Low Na2O amount 0.05%max
3.ceramic material
4.filler material
WFA 99.5% Al2O3 abrasive white fused alumina powder for steel polishing
Introduction
White Corundum is based on high-quality aluminum oxide powder as raw material, formed by the crystallization of fused refining, high purity, self-sharpening, good acid and alkali corrosion, high temperature thermal stability performance, it is slightly higher than the brown corundum hardness, toughness is slightly lower, high purity , self-sharpening good grinding ability, heat a small, high efficiency, acid and alkali corrosion, high temperature thermal stability
Applications
As refractories
White fused alumina is the main starting material to produce high-grade unshaped and shaped refractories and is widely-used in the field of iron-steel industry, cement industry, ceramics, Petrochemical industry, etc. It is the ideal raw material to produce the unshaped refractors such as large ladle castables, medium and high grade BF trough castables, gunning material, pre-cast shapes and is the main raw material to produce alumina products such as corundum bricks, corundum and mullite-corundum sagger, refined porous plug bricks, monolithic lance & composite nozzle, lining material for high-temperature industrial furnaces, etc.
As abrasives
White fused alumina can be used as consolidation & coating abrasives, wet or dry sprayed grit, suitable for the ultra-precise grinding & polishing in the crystal and electronic industry and can be used to produce high-grade refractories. It is suitable to machine high stiffness and high tensile strength materials such as chilled steel, alloyed steel, high-speed steel, high carbon steel, etc. In addition, it can be used as catalyst, insulator, precise foundry sand, etc.
Specifications
Al2O3 |
99.60 min |
Fe2O3 |
0.03 max |
Na2O3 + K2O |
0.03 max |
SiO2 |
0.04 max |
Particle density (g/cm3) |
3.96 |
Content of magnetic substance % |
0.038 max |
Hardness (mohs ) |
≥ 90 |
Melting point (°C) |
2050 |
Bulk density (g/cm3) |
1.92 |
Linear expansion coefficient |
7-9 |