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Aluminum alloy products polishing white corundum powder 800 # 1000 # 1200 #

white corundum powder for polishing aluminum alloy products 800 # 1000 # 1200 #

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Aluminum alloy products polishing white corundum powder 800 # 1000 # 1200 #
  • White corundum is made of high-quality aluminum oxide powder as raw material, crystallized by electromelting, high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance, stable thermal performance, it is slightly harder than brown corundum, slightly lower toughness, strong grinding ability, small calorific value, high efficiency. It can be made into an abrasive, which can be applied to grinding fine-grained abrasives such as high carbon steel, high speed steel and stainless steel; It can also be used for precision casting and advanced refractories.
  • Physical and chemical indicators:
    Physical propertieschemical compositionContent(%)
    Crystalline hexagonAl2O3≥99.55
    Main crystal: Al2O3
    Color: WhiteNa2O≤0.3
    True density ≥3.9 g/cm3
    Bulk density 1.75-1.95 g/cm3SiO2≤0.01
    9 on the Mohs scale
    The coefficient of linear expansion is 8.3×10-4Fe2O3≤0.03
  • Product model particle size comparison table:
  • White corundum grain size sandWhite corundum powder
    Granularity numberParticle size range (μm)Granularity numberParticle size range (μm)
    12 #2000-1700W6363-50
    16 #1400-1180W5050-40
    20 #1180-1000W4040-28
    22 #1000-850W2828-20
    24 #850-710W2020-14
    30 #710-600W1414-10
    36 #600-500W1010-7
    40 #500-425W77-5
    46 #425-355W55-3.5
    54 #355-300W3.53.5-2.5
    60 #300-250W2.52.5-1.5
    70 #250-212W1.51.5-0.5
    80 #212-180W0.50.5-0.3
    90 #180-150
    100 #150-125
    120 #125-106
    150 #106-75
    180 #90-63
    220 #75-53
    240 #63-50
    280 #50-40
    320 #40-28
  • White corundum sandblasting abrasive particle size sand performance and advantages:
  • 1. Does not affect the color of the processed parts;
  • 2. It can be used for sandblasting in the process where iron powder residues are strictly prohibited;
  • 3. Micronized grade is very suitable for wet sandblasting and light polishing operations;
  • 4. Fast processing speed and high quality;
  • 5. The amount of iron oxide contained in it is extremely low, which is suitable for sandblasting operations where iron residues are strictly prohibited;
  • 6. After pickling steps to remove.
  • Suitable for all kinds of high-end products, processes or hardware and other products surface beautification treatment, after sandblasting the surface is white without any impurities, eliminating cleaning troubles. Fine white corundum can be used as a choice for polishing and grinding, and can also be used as a product additive.
  • 1. Surface 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, K gold jewelry, precious metal products matting or matte treatment, crystal, glass, corrugation, acrylic and other non-metallic matte processing and can make the surface of the processed object into metallic luster.
  • 3. Etching processing: jade, crystal, agate, semi-precious stones, seals, elegant stones, antiques, marble tombstones, ceramics, wood, bamboo pieces, etching art.
  • 4. Pre-treatment processing: Teflon, PU, rubber, plastic coating, rubber roller barrel (ROLLER), electroplating, metal spray welding, titanium plating, etc. before treatment, so that the surface adhesion increases.
  • 5. Burr processing: bakelite, plastic, zinc, aluminum die-casting, electronic parts, magnetic core, etc. Force elimination processing.

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