South Africa AFS20-70 chromite sand Cr2O3 46%

Chromite 46% Cr2O3 Chrome Foundry Sand

Product description:

Foundry chromite sand is a natural process products of chromite through the broken screen classification, chrome ore, its main chemical composition of cr2o3, this kind of sand heated volume stability, high thermal conductivity, when in contact information with the molten metal, not only has good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to touch sand defects, suitable for all kinds of stainless steel, alloy steel and carbon steel gradually shape the original sand core and coating.

Advantages of SICHENG Foundry chromite sand:

1. With excellent chilling characteristics, this characteristic does not reduce the thermal cracking, but can affect the temperature gradient, promote directional solidification without the use of cold iron.

2. Chromite is inert and does not react with other metal oxides. It is not wetted by manganese steel water. Chromite can be successfully used in manganese steel castings.

3. Linear expansion is small, and linear expansion is a factor that may cause sand inclusion in castings, so it may be used to mix wet sand mold for large castings.

Physical and chemical index: 

The production process:

Step1: chrome ore raw material is processed by water washing.

Step2, drying raw materials to remove water;

Step3, drying raw materials into the vibrating screen, screening out the size of the customer needs;

Step4, the size of the sieve for magnetic separation, the purpose of iron and silicon removal. After magnetic separation, the chromium content reached more than 46% and the silicon content was less than 1%.

Step5: package the finished product.

Why choose us: 

1. We are a manufacturer, which can control the cost easier than trade company also can give you answer more quickly.
2. As a manufacturer, we know much in technique and can give you more support in technique problem.
3. Professional and experienced service team, specialized in abrasive production ,more than 10 years.
4.Our products are complete in specifications with various of sizes.
5. We enjoy a good reputation in the customers in domestic and overseas markets.
6. Large production capacity, short lead time of products.
7. 24*7 online service.

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