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Magnesium sand for foundry 2024
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Forsterite sand is a high-quality refractory material, mainly used in the foundry industry.
- Product description
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Forsterite sand is a high-quality refractory material, mainly used in the foundry industry. The following is a 400-word introduction to forsterite sand for foundry:
The chemical formula of forsterite sand is Mg2SiO4, which has excellent fire resistance and the refractoriness is as high as 1910 ℃. Its Mohs hardness is between 6 and 7, which is a relatively stable refractory phase in the MgO-SiO2 system. In the casting process, magnesium olivine sand shows good thermal conductivity and thermal expansion performance, the expansion is smaller and uniform than silica sand, and it is not easy to produce sand inclusion and phase change.
The magnesium olivine sand has no free silicon oxide, so it has no silicon dust hazard, and no CO gas is produced during pouring, which provides a good production environment for foundry workers. In addition, magnesium olivine sand has excellent chemical stability and corrosion resistance to metal oxides, especially high manganese steel castings, which can effectively prevent the casting from producing chemical sand and mechanical sand, so that the casting surface is smooth, the outline is clear, and the size is accurate.
In the foundry industry, magnesium olivine sand is commonly used to make water glass sand cores for lost foam casting filled sand and high manganese steel castings. At the same time, magnesium olivine sand can also be used as casting coating aggregate powder, the production of coating has good thixotropy, yield value is suitable, high suspension rate, easy to hang, high coating strength, high temperature does not crack, strong anti-casting sand adhesion and other excellent properties.
In general, forsterite sand plays an important role in the foundry industry with its excellent fire resistance, corrosion resistance, chemical stability and environmental protection. It is the production of high-quality cast steel parts, especially manganese steel parts. Excellent modeling materials.
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