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240 Grit Aluminum Oxide Manufacturers Thailand

The alumina content of aluminium oxide sandblasting is the main index of chemical composition. This is because alumina is the most important component of corundum, and determines the grinding performance and physical and chemical properties of corundum abrasive. In addition, the standard of aluminum oxide abrasive blasting grit also specifies the content of TiO2.

240 Grit Aluminum Oxide Manufacturers Thailand MOQ: 1 Ton! 19 Years Experience 240 Grit Aluminum Oxide Manufacturer, 35,000m² Workshop Area, Free Samples, Fast Delivery!

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Ti content not only affects the mechanical properties of white fused alumina, but also affects the color of abrasives. When the content of TiO2 in brown corundum is less than 1% ~ 1.3%. Naz in white corundum can form sodium aluminate (naz1al0) with a12o. The consumption of alo in black alumina reduces the content of a-Al2O3. Therefore, the national standard has strict restrictions on the content of Nao in white corundum abrasives.(240 grit aluminum oxide manufacturers thailand)

The chemical composition of microcrystalline corundum is basically the same as that of pink aluminium oxide. The alo content of single crystal corundum is more than 98.00%, which is similar to that of white corundum. As the main raw material of single crystal corundum is bauxite, there are a certain amount of TiO2 and a small amount of aluminium oxide abrasive grit impurities (MgO, CA) in the abrasive. The difference is that 0.5% ~ 3% CR2 is added during smelting.

(240 grit aluminum oxide manufacturers thailand)In corundum, Cr2O exists between white aluminum oxide crystals in the form of replacement solid solution. Chromium replaces ALP + (51pm) with Cr + (69pm), which causes some deformation of the crystal lattice, thus increasing the impact resistance of the crystal and improving the physical and mechanical properties of aluminium oxide blasting, especially when Cr2O3 is in the range of 2% ~ 3%, it can significantly improve its grinding ability and toughness.

The formation mechanism of Cr corundum is similar to that of synthetic corundum price, so the Al 2 content of Cr corundum is more than 98.00%, which is similar to that of white corundum. The addition of chromium oxide also changes the lattice constant D of corundum and increases the distance between crystal faces. The chemical composition of abrasive fluctuates slightly with the change of fused aluminum oxide particle size.(240 grit aluminum oxide manufacturers thailand)

A continuous solid solution is formed between chromium oxide and al2. That is to say, the high purity fused aluminum oxide main chemical composition content of abrasive decreases with the particle size becoming finer, and the impurity content increases accordingly. Experienced people usually judge the quality of bauxite according to its appearance. The grade of bauxite is divided according to its alumina content, the aluminium oxide blasting grit is gray white. 

(240 grit aluminum oxide manufacturers thailand)Bauxite is the main raw material for smelting aluminum oxide for sand blaster, microcrystalline corundum, single crystal corundum and high alumina corundum. Its main component is Al2O3, bauxite is also called bauxite. In fact, bauxite is not a mineral, but a mixture of major components such as allo · 3ho - allo · H2O, kaolinite, opal, hematite and goethite. China has abundant bauxite reserves. The finer the artificial corundum size, the lower the purity.

The black synthetic corundum main bauxite producing areas are Qingzhen in Guizhou, Yangquan in Shanxi, Zibo in Shandong, Gongxian in Henan and Pingguo in Guangxi. Generally, bauxite with light color, pure color, bean like fracture structure and aluminum oxide blasting abrasive fine and dense structure is better. Bauxite mineral particles are very small (1-10 mm), and almost always in a very fine mixture, so it is difficult to identify, so special methods must be used.

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