News

Casting chromite ore is natural chromite by crushing and screening and other processing products, the main chemical composition of chromium ore is CR2O3, this sand is heated volume is stable, high thermal conductivity, and molten metal contact, not only has a good resistance to alkaline slag, does not react chemically with iron oxide, etc., but also has the characteristics of solid phase sintering, can well prevent the penetration of molten metal, avoid sand defects, suitable for a variety of stainless steel, alloy steel and carbon steel gradually shape the core of raw sand and coatings.

The characteristics and uses of corundum abrasives in China are shown in Table 1-1-3.

The use of brown corundum abrasives can be recycled, and whether brown corundum abrasives can be reused and the number of times they are used, mainly by the material being sandblasted, the hardness and grade of brown corundum, and the size of particles and other factors, such as 24 mesh, 36 mesh, 46 purpose primary brown corundum can be reused more than 6-8 times, secondary brown corundum can be reused more than 4-6 times, tertiary brown corundum can be reused more than 3-4 times.

Glass beads are processed from a silicon dioxide material, and the reason for their color is that some pigments are added before molding. So what are the characteristics of sandblasting glass beads?