Abrasive Grains Exporter | Abrasive Grains Factory

There are many kinds of passive grains, which are generally classified according to their hardness. The highest hardness is diamond, including synthetic diamond and natural diamond; The second is carbide, such as black silicon carbide, green silicon carbide, boron carbide and carbon silicon boron, etc; The third is corundum with high hardness, such as brown corundum, white corundum, single crystal corundum, chrome corundum, microcrystalline corundum, black corundum, zircon corundum and sintered corundum.

Silicon carbide abrasive grains are divided into black silicon carbide and green silicon carbide, which are obtained by heating silicon carbide and carbon in an electric resistance furnace. Silicon carbide has good thermal conductivity and low coefficient of thermal expansion. Compared with green silicon carbide, black silicon carbide has higher hardness and lower toughness. In addition, they can also be distinguished according to their colors, for example, those with silicon carbide content of 96-99% are black; Those with more than 99% silicon carbide are green.

Abrasive grains can be divided into two categories: natural abrasive grains and artificial abrasive grains. All natural materials that can be used for grinding or grinding are collectively referred to as natural abrasives. Artificial abrasives can be divided into corundum series, carbide series, superhard series, etc. We provide relevant products of passive grains. If you are interested in this, please take the initiative to contact us for more information.

White corundum abrasive grains are commonly known as emery, also known as alumina grinding powder. It is a white corundum crystal block obtained by smelting aluminum oxide powder in an electric furnace, crushed and sorted according to the particle size standard. White corundum and brown corundum are both corundum abrasives, and their difference lies in the content of alumina crystals.