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White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
White Corundum
  1. White Corundum
  2. White Corundum
  3. White Corundum
  4. White Corundum
  5. White Corundum
  6. White Corundum
  7. White Corundum
  8. White Corundum
  9. White Corundum
  10. White Corundum
  11. White Corundum

White Corundum

Low Sodium High Purity White Corundum, also known as White Fused Alumina (WFA), is premium electro-fused abrasive raw material manufactured by melting high-grade Bayer alumina under ultra-high temperature above 2000°C.

Different from ordinary white corundum, our product features ultra-high Al₂O₃ content (99.6%~99.99%) and strictly controlled low Na₂O within 0.01%~0.20%, effectively reducing the generation of low-performance β-Al₂O₃ impurities. Dominated by stable α-Al₂O₃ crystal phase, our low-sodium white corundum delivers outstanding high-temperature resistance, excellent insulation, superior thermal conductivity and consistent hardness, becoming the top choice for high-end abrasive tools, special ceramics and super refractory industries worldwide.

응용 프로그램

  • Grinding Wheel, Abrasive Tools, Sand Paper, Sand Cloth, Sanding Belts etc.
  • Sand Blasting, Polishing, Grinding on Metal and Non-metal
  • Water-jet Cutting, Etching, Pattern Cut on Metal and Non-metal Parts
  • Filtration Media for Water Purifying Project
  • Wear Proof Ground, Abrasion Resistant Floor
  • Buring, Rust Removal, Cleaning and Polishing on Ceramic, Wood, Metal, Foundry Parts
  • Matt Finish on Copper, Frosted Glass Effect
  • Treatment on Jeans, Grinding Blanch for Jeans and Acheieve Cat-beard Effect
  • Used as Fillings into Cosmetic Products to improve Abrasion Resistance
카테고리: 태그: , , ,

LOW SODIUM /HIGH PURITY WHITE CORUNDUM SERIES

High purity white corundum refers to the white corundum with 99.70-99.99% alumina content and 0.01-0.20% sodium oxide as the main harmful impurity. Ordinary white corundum usually has an alumina content of <99.6%, with a sodium oxide content of 0.2-0.6%.

The main phase of high purity white corundum is α- Al2영형3.

Sodium oxide is a harmful impurity for white corundum, which generates β – Al2영형3  with alumina in the molten state, and the amount of generation increases with the increase of sodium oxide content.β – Al2영형3  has a low melt- ing point, low density and low hardness. The Na2O in white corundum is mainly in the form of Na2O·11 Al2영형3  (β – Al2영형3), if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced by it will contain more than ten percent of β – Al2영형3. β – Al2영형3  and α-Al2영형3 have three lows compared with α – Al2영형3, one is the melting point, the second is the density is low, and the third is the hardness is low.

LOW SODIUM /HIGH PURITY WHITE CORUNDUM SEGMENT SAND& FINE POWDE

Its main material is bayer alumina, which is electrically fused in high temperature. It is white- and its hardness is higher, but toughness lower than that of brown fused alumina. The abra- sive tools made of it are suitable for the grinding of high carbon steel, high speed steel and chilled steel. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.

Product application：

  • Unshaped refractory materials like ladle pouring material, ramming materials and lining material.
  • Shaped refractory products, like alumina bricks.

 

LOW-SODIUM/HIGH- PURITY WHITE CORUNDUM SAND

Product application：

  • BondedAbrasives
  • Sandblasting, lapping, and polishing media
  • Laminating flooring

 

粒度 最粗粒 粗粒 基本粒 混合粒 细粒
筛网号 网孔尺寸 筛上物 筛网号 网孔尺寸 筛上物 筛网号 网孔尺寸 筛上物 筛网号 网孔尺寸 筛上物 筛网号 网孔尺寸 筛上物
# μm 质量比% # μm 质量比% # μm 质量比% # μm 质量比% # μm 质量比%
F4 5★16 8000 0 3.5 5600 20 4 4750 40 4   5 4750 4000 70 6 3350 3
F5 0.265 6700 0 4 4750 20 5 4000 40 5   6 4000 3350 70 4 2800 3
F6 3.5 5600 0 5 4000 20 6 3350 40 6   7 3350 2800 70 8 2360 3
F7 4 4750 0 6 3350 20 4 2800 40 7   8 2800 2360 70 10 2000 3
F8 5 4000 0 4 2800 20 8 2360 45 8   10 2360 2000 70 12 1700 3
F10 6 3350 0 8 2360 20 10 2000 45 10   12 2000 1700 70 14 1400 3
F12 4 2800 0 10 2000 20 12 1700 45 12   14 1700 1400 70 16 1180 3
F14 8 2360 0 12 1700 20 14 1400 45 14   16 1400 1180 70 18 1000 3
F16 10 2000 0 14 1400 20 16 1180 45 16   18 1180 1000 70 20 850 3
F20 12 1700 0 16 1180 20 18 1000 45 18   20 1000 850 70 25 710 3
F22 14 1400 0 18 1000 20 20 850 45 20   25 850 710 70 30 600 3
F24 16 1180 0 20 850 15 25 710 45 25   30 710 600 65 35 500 3
F30 18 1000 0 25 710 15 30 600 45 30   35 600 500 65 40 425 3
F36 20 850 0 30 600 15 35 500 45 35   40 500 425 65 45 355 3
F40 25 710 0 35 500 15 40 425 40 40   45 425 355 65 50 300 3
F46 30 600 0 40 425 15 45 355 40 45   50 355 300 65 60 250 3
F54 35 500 0 45 355 15 50 300 40 50   60 300 250 65 70 212 3
F60 40 425 0 50 300 15 60 250 40 60   70 250 212 65 80 180 3
F70 45 355 0 60 250 15 70 212 40 70   80 212 180 65 100 150 3
F80 50 300 0 70 212 15 80 180 40 80   100 180 150 65 120 125 3
F90 60 250 0 80 180 15 100 150 40 100   120 150 125 65 140 106 3
F100 70 212 0 100 150 15 120 125 40 120   140 125 106 65 200 75 3
F120 80 180 0 120 125 15 140 106 40 140   170 106 90 65 230 63 3
F150 100 150 0 140 106 15 200 75 40 200   230 75 63 65 325 45 3
F180 120 125 0 170 90 15 200 230 75 63 40 200 230 270 75 63 53 65
F220 140 106 0 200 75 15 230 270 63 53 40 230 270 325 63 53 45 60

 

Why Choose Our Low Sodium High Purity White Corundum?

  1. Exclusive production process to control sodium oxide content strictly, far lower than regular white fused alumina
  2. Ultra-high alumina purity, minimum harmful impurities, stable α-Al₂O₃ crystal structure
  3. Full-size range from coarse segment sand to superfine micro powder, customized grading available
  4. Rigorous quality inspection for every batch, complete test reports with detailed chemical & physical data
  5. Factory direct supply with stable stock, moisture-proof seaworthy packaging (25kg bags / 1000kg jumbo bags)
  6. Free samples offered for performance testing, fast delivery for global bulk industrial buyers

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