Function And Use Of Chromite

Chromite ore is casting sand, natural spinel based on chromite, broken and screened into specified particle size, then what are the roles and uses of chromite? Today, Xiaobian will introduce you to the role and use of chromite ore.

The role of chromite ore:

1, the thermal conductivity of chromium ore is several times larger than silica sand, which can improve the cooling speed of castings, therefore, chromium ore can play the role of external cold iron in practical application;

2, the impact of the particle size of chromium sand on its refractoriness The particle size of chromium sand can significantly affect its refractoriness. In the sand mold made of chromium ore, the surface of the sand core is usually sprayed with a certain thickness of paint, so that the brightness of the casting surface is simply not affected.

3, chromium ore has a good anti-alkaline slag effect, does not react with iron oxide; Therefore, in practical application, chromium ore can prevent thermochemical sand sticking;
4, in the molten metal casting process, the chrome ore itself attacks solid phase sintering, avoiding the penetration of the molten metal, so as to avoid mechanical sand.

Use of chromite ore:

1, chromite ore has a good anti-alkaline slag effect, does not react with iron oxide; Therefore, in practical applications, chromium ore can avoid thermochemical sand;

2, in the molten metal casting process, chromite ore itself occurs solid phase sintering, preventing the penetration of molten metal, thereby preventing mechanical sand;

3, the thermal conductivity of ferrochrome ore is several times larger than that of silica sand, which can improve the cooling speed of castings, therefore, chromite ore can play the role of external cold iron in practical application;

4, high refractance, low coefficient of thermal expansion, does not react with metal oxides, can effectively prevent casting veins, sand and other casting defects.

5, adding the right amount of South African chrome ore in the sand can be prepared to cast steel, cast iron sand, adding the right amount of South African chrome ore in the mix, can effectively prevent thermal expansion casting defects.