Causes of black spots in white corundum powder
Many customers of white corundum powder have reported that they found that the white corundum powder had black spots during the use process, and also found that the white corundum powder contained black cyan particles. Then what caused the white corundum powder to appear black. What about the point particles?
White corundum powder
First, black spots appear in the white corundum powder, which may be due to rust. The raw material of white corundum requires iron oxide. If it is not removed during the production process, black spots and particles will appear. At the same time, the appearance of this situation also has a great relationship with the production process. The purity of the white corundum produced by regular manufacturers is all qualified. At the same time, there are screening and pickling processes, and basically no impurities will exceed the standard. In this case, there will be no granular black spots.
Too many impurities in white corundum also directly proves that the quality of white corundum is not good. If the quality of white corundum is not good enough, there will be many problems in later use, such as insufficient hardness, or damage to the article due to polishing, etc.
White corundum is used very frequently in industry now, and it is also widely used in refractory materials. The market for white corundum is believed to be greatly developed in the future.