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By certification 
White fused alumina is made from industrial alumina powder and refined with modern new and unique technology. The main components: aluminum oxide (Al2O3) content is more than 98%, and contains a small amount of iron oxide, silicon oxide and other components. It is white. The arc is made by smelting at a high temperature of over 2000 degrees and then cooling. After crushing and shaping, magnetic separation to remove iron, sieving into a variety of particle sizes, the texture is dense, the hardness is high, and the particles form sharp corners.
White fused alumina also called White aluminum oxide, White aluminium oxide, White corundum, its hardness of white fused alumina is slightly higher than that of brown fused alumina , with slightly lower toughness, high purity, good self-sharpening, strong grinding ability, low heat generation, high efficiency, acid and alkali corrosion resistance, and high temperature and thermal stability. Abrasives tools made of white fused alumina is suitable for grinding fine-grained abrasives such as high-carbon steel, high-speed steel and stainless steel.The white fused alumina section sand can also be used for precision casting and advanced refractories.
| Application | Standard/Grit No. |
Chemical compositions % |
Magnetic % |
|||
Al2O3 |
Na2O |
SiO2 |
||||
Abrasives |
F |
12—80# |
≥99.4 |
≤0.4 |
— |
≤0.03 |
90—150# |
≥99.3 |
≤0.4 |
≤0.03 |
|||
180—220# |
≥98.2 |
≤0.4 |
— |
≤0.03 |
||
230#-2000# |
≥99.3 |
≤0.4 |
≤0.03 |
≤0.05 |
||
JIS |
240-10000# |
≥99.3 |
≤0.4 |
≤0.03 |
≤0.05 |
|
Refractory |
Section sand |
0-1mm |
≥99.3 |
≤0.4 |
≤0.06 |
≤0.05 |
Fine powder |
180—0 |
≥99 |
≤0.4 |
≤0.1 |
≤0.03 |
|
Scope of application:
White fused alumina is suitable for surface beautification treatment of various high-end products, crafts or hardware. After sandblasting, the surface is white without any impurities, eliminating the trouble of cleaning.Fine white corundum can be used as the first for polishing and grinding.It can also be used as a variety of product additives.It can be used as solid and coated abrasive tools, wet or dry or sprayed sand, suitable for ultra-precision grinding and polishing in the crystal, electronic industry and making high-grade refractory materials.It is suitable for processing hardened steel, alloy steel, high-speed steel, high-carbon steel and other materials with harder hardness and higher tensile strength.It can also be used as contact media, insulators and precision casting sand. Derusting, decontamination and descaling of iron workpieces, increasing the adhesion of coatings and coatings; descaling of aluminum workpieces, surface strengthening, and finishing; copper workpieces descaling and matt effect, glass products crystal frosting , Patterned plastic products, matt effect, denim and other special fabric plush processing and effect patterns
1.Surface processing: metal oxide layer, carbide black skin, metal or non-metal surface rust removal, such as gravity die casting molds, rubber molds The oxide or release agent is removed, the black spots on the ceramic surface, the uranium color is removed, and the painting is reborn.
2.Beautification processing: matte or matte processing of various gold, K gold jewelry, precious metal products, non-metal matte processing of crystal, glass, corrugated, acrylic, etc., and can make the surface of processed objects become metallic luster.
3.Etching processing: etching art for jade, crystal, agate, semi-precious stone, seal, elegant stone, antique, marble tombstone, ceramic, wood, bamboo, etc.
4.Pre-treatment processing: Teflon (TEFLON), PU, rubber, plastic coating, rubber drum (ROLLER), electroplating, metal spray welding, titanium plating and other pre-treatments to increase surface adhesion.
5.Burr processing: Removal of burrs from bakelite, plastic, zinc, aluminum die-casting products, electronic parts, magnetic cores, etc.
6. Stress relief processing: aerospace, defense, precision industry parts, rust removal, paint removal and matting, refurbishment and other stress relief processing.
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