Chrome ore sand, also known as chromite sand, is a special sand for foundry. It is a natural spinel mainly made of chromite. It is crushed, ground, and sieved to a specified particle size, suitable for modeling (core making) sand. Chrome ore is mainly used for the surface sand of large steel castings in casting production to prevent the surface of castings from sticking to sand; secondly, it is ground for refractory aggregates for casting coatings; chrome ore is a chilling material and is used in modeling (core making) Sometimes it can replace part of cold iron.
Casting chrome ore is a product processed by natural chromite ore through crushing and screening processes, and its main chemical composition is Cr2O3. The role of slag does not chemically react with iron oxide, etc., and it has the characteristics of solid phase sintering, which can well prevent the penetration of molten metal and avoid sand sticking defects.
The main chemical composition of chromium ore sand is cr2o3. This kind of sand has stable heating volume and high thermal conductivity. When in contact with molten metal, it not only has a good anti-alkali slag effect, does not chemically react with iron oxide, etc., but also has its own The characteristics of solid phase sintering can prevent the penetration of molten metal and avoid the occurrence of sand staining defects. It is suitable for raw sand and coatings of various stainless steel, alloy steel and carbon steel gradually modeling cores.