(1) The hardness is high, usually not lower than the hardness of the processed material.
(2) Good toughness, not easy to deform and wear due to grinding pressure.
(3) Good self-sharpening, that is, when crushed by grinding pressure, the crushed parts still remain
Sharp polygons.
(4) The melting point or softening point is high, and the sharp angle of the abrasive is not easy to melt or change under the action of grinding heat.
Soft.
(5) It has good chemical stability and does not react with the processed material.
(6) The shape and particle size are relatively uniform, and the particle size of each abrasive is within a certain range.
According to the hardness classification, there are two types of super-hard abrasives and ordinary abrasives. General grades can be divided into corundum, silicon carbide, diamond and corundum, which are usually used in the manufacture and sandblasting of general abrasive tools. They are ordinary abrasives, but there are many high-grade corundum abrasives, such as zirconium corundum or single crystal corundum. For corundum abrasives, "black and white brown corundum" is usually used. Especially when manufacturing abrasive tools and sandblasting, the hardness requirements are very strict. If you have any questions, please consult.
Sandblasting abrasive has the characteristics of short grinding time, high efficiency, good efficiency and low price. The product has moderate hardness, high toughness, good self-sharpening, low sand consumption, recyclable and high abrasive finish; it has stable chemical composition, wear resistance, acid and alkali resistance. The shell-shaped cracks have sharp edges and corners, which can form new edges and corners in the continuous crushing and classification process, so that their grinding ability is better than other abrasives. In particular, it has the advantages of high hardness, high specific gravity, stable chemical properties and unique self-sharpening properties. It has become the choice of abrasive in the sandblasting process; at the same time, it is also an ideal material for sandblasting and rust removal of workpieces, as well as grinding and polishing.