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100 eyes 120 eyes 150 eyes white ball sand White Aluminum Oxide

100 mesh 120 mesh 150 mesh white aluminum oxide White corundum is made of alumina powder as raw material, electric arc furnace by high temperature smelting above 2000 °C, after crushing shaping, magnetic separation to remove iron, screening into a variety of particle sizes, its texture is dense, high hardness, grain formation sharp angle hardness slightly higher than brown corundum, slightly lower toughness, strong cutting force, good chemical stability, with good insulation.

/MT

100 eyes 120 eyes 150 eyes white ball sand White Aluminum Oxide

The color is white, and the hardness is slightly higher than that of brown corundum,High purity,Good self-sharpening, strong grinding ability,Low calorific value,High efficiency,Acid and alkali corrosion resistance,High temperature resistance, good thermal stability. Suitable for precision casting, refractory materials, grinding, sandblasting, polishing materials, spraying materials, chemical catalyst carriers, special ceramics, etc.

The production process of white corundum

White corundum is made of high-quality aluminum oxide powder as the main raw material, which is smelted at high temperature in an electric arc furnace.

White corundum powder is made of high-quality aluminum oxide powder as the main raw material, smelted at high temperature in the electric arc furnace to form white corundum blocks, crushed to small pieces by jaw crusher, ball mill for secondary crushing to make the particles smaller, and then through pickling to remove impurities, siphon segmentation, stirring and precipitation on time to extract different models, and then through precipitation drying and sieving loose.

Physical properties of white corundum

Mohs hardness9.0
Bulk density1.75-1.95g/cm³
True density3.95g/cm³
Bulk density3.6
melting point2250℃
Maximum operating temperature1900℃

Chemical composition and chemical content of white corundum

Al2O3Fe2O3Na2OSiO2
Segment sand99.5%0.04%0.06%0.3%
Fine powder99.0%0.1%0.08%0.35%
Granular sand99.5%0.04%0.04%0.23%
Micronized99.2%0.06%0.08%0.35%

The use of white corundum: iron workpiece rust removal, decontamination, descaling and increasing plating and coating adhesion; Aluminum workpiece descaling, surface strengthening, light decoration;Copper workpiece de-oxide matte effect, glass products crystal frosted, engraved pattern Plastic products matte effect, denim and other special fabrics plush processing and effect patterns。

1Surface processing: metal oxide layer, carbide black skin, metal or non-metal surface rust removal, such as gravity die casting mold, rubber mold oxide or release agent removal, ceramic surface black spots, uranium color removal, painted rebirth.

2, beautification processing: all kinds of gold,KMatting or matte treatment of gold jewelry, precious metal products, crystal, glass, corrugation, acrylic and other non-metallic matte processing, and can make the surface of the processed object into a metallic luster.

3Etching processing: jade, crystal, agate, semi-precious stones, seals, elegant stones, antiques, marble tombstones, ceramics, wood, bamboo pieces, etching art.

4, pretreatment processing: Teflon (TEFLON),PU, rubber, plastic covering, rubber roller barrel (ROLLER), electroplating, metal spray welding, titanium plating, etc. before treatment, so that the surface adhesion increases.

5Burr processing: bakelite, plastic, zinc, aluminum die-casting, electronic parts, magnetic core, etc.

6Stress relief processing: aerospace, national defense, precision industry parts, rust removal, paint removal, matting, refurbishment, etc。

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