White corundum is a kind of artificial abrasive, which is white, mainly contains aluminum oxide, and contains a small amount of iron oxide, silicon oxide and other components. White corundum is dense in texture, high in hardness, and the grains form sharp angles. It is suitable for the manufacture of ceramics, resin-bonded abrasive tools, as well as grinding, polishing, sandblasting, precision casting, etc. White corundum can also be used to manufacture advanced refractory materials. The crystal size of white corundum is small and resistant to impact. It is crushed by self-grinding machine. The particles are mostly spherical particles. The surface is dry and clean. No impurities, no cleaning troubles.
White corundum powder is harder and more brittle than brown corundum, and has stronger cutting force. Good chemical stability and good insulation. It can be used as solid structure and coated abrasives, wet or dry blasting sand, suitable for ultra-fine grinding and polishing in crystal and electronic industries and making advanced refractory materials, etc.; suitable for processing hardened steel, alloy steel, high-speed steel, high-carbon steel, etc. Harder, higher tensile strength material. White corundum is made of high-quality aluminum oxide powder as raw material, which is refined and crystallized by electrofusion. It has high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance, stable thermal performance, and its hardness is slightly higher than that of brown corundum.
After continuous technological improvement and industry trials, white corundum micropowder has been recognized by customers. White corundum has high hardness, good self-sharpening, and excellent grinding and polishing performance. At the same time, after technical improvement, the production cost is slightly reduced. In the electrofusion process, it becomes complicated due to chemical reaction, homogeneous polycrystalline transformation, recrystallization, and co-dissolution, but it is mainly realized by the larger surface area and higher surface energy of the powder. During the preparation process of powder, various lattice defects appear on its surface and inside.
White corundum is made of high-quality aluminum oxide powder, which is refined and crystallized by electrofusion. It has high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance, and stable thermal performance; its hardness is slightly higher than that of brown corundum, and its toughness is slightly lower. It has strong grinding ability, low calorific value and high efficiency; it can be used to make abrasive tools, which can be used for grinding fine-grained abrasives such as high carbon steel, high speed steel and stainless steel, and can also be used for precision casting and advanced refractory materials.
White corundum powder has good chemical stability and good insulation. White is harder and more brittle than brown corundum. It has stronger cutting force. It can be used as solid structure and coated abrasives. It is suitable for wet or dry blasting sand. It is suitable for processing hardened steel, alloy steel, high-speed steel, high carbon steel and other materials with hard hardness and high tensile strength. White corundum abrasive can also be used as catalyst, insulator and Precision casting sand, etc.
White corundum micropowder does not affect the color of the processed parts, and can be used for sandblasting in the process where iron powder residue is strictly prohibited. The micropowder grade is very suitable for wet sandblasting and polishing operations. Sandblasting of iron residues.
The traditional preparation of white corundum micropowder is to smelt the raw materials at high temperature in an electric arc furnace to produce white corundum blocks. , that is, sintering white corundum micropowder, which is to shape the powdery raw material and heat it at a temperature lower than its melting point to make it adhere, bond, eutectic, and recrystallize to each other under the action of additives. The sintering is dense and has a specific performance.
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