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Polishing abrasive


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With extremely high hardness and sharp particle shape, it has a good grinding effect on materials with different hardness, and a good polishing effect on alloy samples with different phases of hardness and soft. In addition, the diamond polishing abrasive has a long life and high cutting capacity, so the abrasive consumption is less. At the same time, the surface of the sample does not produce deformation perturbation layer.


Hardness is very high and does not react with polished material. Alumina polishing abrasive is commonly used in steel samples. However, it is not suitable for polishing aluminum and aluminum alloy, because alumina abrasive easily makes aluminum surface tarnish and produces corrosion pits.

Chrome oxide

The polishing ability is weaker than that of alumina, which can be used as the final polishing of steel sample.

Iron oxide

Extremely polished surface can be obtained, but at the same time, deformation and perturbation layer can be easily generated, and non-metallic inclusions will be pulled out of the metal matrix of the sample, which is rarely used.


Low hardness, extremely fine particles, sharp profile and good grinding edge. It is suitable for final polishing of aluminum, magnesium and other non-ferrous metals and alloys. It has little effect on non-metallic inclusions in steel samples, so it is especially suitable for inclusion inspection and polishing of cast iron graphite samples.