White Fused Alumina (white corundum)
WFA Abrasive blasting media is made of 99% aluminum oxide powder as raw material, which is refined and crystallized by electric melting (thus white corundum is also called fused alumina and white fused alumina). The white corundum sand produced by our factory has high purity, low impurities, low sodium content, uniform particles and high whiteness.
We are the biggest supplier of white fused alumina in china, we are also the standard setter of the white fused alumina in china.We have been in the industry since 1987.
White corundum: fused alumina is widely used as a raw material in refractories, ceramics shapes, grinding wheels, sandpaper, blasting media, metal preparation, laminates, coatings, lapping, polishing, grinding and hundreds of other applications.Zhengzhou yufa, white fused alumina grains and powders are available in standard grit and powder sizes and they can also be made to individual specifications.
White Fused Alumina (white corundum)
WFA Abrasive blasting media is made of 99% aluminum oxide powder as raw material, which is refined and crystallized by electric melting (thus white corundum is also called fused alumina and white fused alumina). The white corundum sand produced by our factory has high purity, low impurities, low sodium content, uniform particles and high whiteness.
Product Feature
1. The Al2O3 purity is high(99%min). So the hardness & grinding ability is high with good grinding efficiency.
2. High wear-resistance. Even in high-temperature circumstances, the strength is still excellent.
3. The white fused aluminum oxide powder is suspension treated by water. So it is of flowability and easy to scatter.
4. Low oil absorption especially for water-based paint.
5. Neutral property with PH value around 7-8.
6. High whiteness. It doesn't affect the color of paints or coatings adding Al2O3 powder.
7. Resistant to most corrosive alkali and acid. It doesn't dissolve in water.
8. Resistant to high temperature up to 1900 C. 9. Good particle size consistency without big size grains. So it prevents scratch on the grinding substrate.
White Fused Alumina Introduction
White Fused Alumina (white corundum) is produced by the grinding & classification of selected Macro grain feed stock in an advanced milling and classifying facility. This ensures an iron free product of narrow particle size distribution and high whiteness.
White Fused Alumina Physics Properties
Color
White
Crystal form
Triangal crystal system
Mohs hardness
9.0-9.5
Micro hardness
2000-2200 kg/mm�²
Melting point
2250
Maximum operating temperature
1900
True density
3.90 g/cm�³
Bulk density
1.5-1.99 g/cm�³
White Fused Alumina Chemical Position Standards
Code and Size Range
BFA Brown Fused Alumina powder in refractory
Brown corundum micro powder is produced by a reduction fusion of high quality bauxite in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grain for applications.Its thermal properties make it an excellent raw material for abrasive and refractory applications.
Advantages Of Brown Corundum Powder:
1. Large crystal, high strength, good toughness, dense texture, high bulk density.
2. Stable performance between batches.
3. The higher grinding efficiency and polishing brightness, the grinding efficiency is much higher than the soft abrasives such as silica.
4. Good particle appearance, high surface finish of the polished object.
Product Parameter
Grains Specifications And Composition
JIS
240#,280#,320#,360#,400#,500#,600#,700#,800#,1000#,1200#,1500#,2000#,2500#,3000#,3500#,4000#,6000#,8000#
European standard
F240,F280,F320,F360,F400,F500,F600,F800,F1000,F1200,F1500
National standard
W63,W50,W40,W28,W20,W14,W10,W7,W5,W3.5
Applications
High Quality Brown Fused Alumina Powder for Precision Casting Bfa Brown Fused Alumina Powder in Refractory
1.Grinding and polishing of stainless steel, optical glass, bamboo or other materials.
2.For polishing various spare parts: bicycles, sewing-machine, hard metal tools, medical apparatus, timepieces, glass products and stone grinding.
3.For making abrasive tools: fiber-reinforced cutting wheels, grinding wheels, sand cloth, paper and paste.
High Quality Brown Fused Alumina Powder for Precision Casting Bfa Brown Fused Alumina Powder in Refractory
