commodity property
| place of production | China | specification | 40-70 mesh |
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| tradmark | YJ | chromium content≥ | 46（%） |
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Chromium ore is divided into 2 levels according to its chemical composition; first-level Cr2O3 ≥45%; second-level Cr2O3 ≥35%. In casting production, chromium ore is mainly used as surface sand for large steel castings to prevent sand from adhering to the surface of the casting; secondly, it is ground into refractory aggregates for casting coatings; chromium ore is a chilling material that is used in molding (core making) It can replace part of the cold iron.
Chromium ore for foundry is a product processed from natural chromite ore through crushing, screening and other processes. Its main chemical component is Cr2O3. This kind of sand has a stable heated volume and high thermal conductivity. When in contact with molten metal, it not only has good resistance to alkaline slag, does not react chemically with iron oxide, etc., but also has the characteristics of solid-phase sintering, which can be very good. To prevent the penetration of molten metal and avoid sand sticking defects.
The main chemical component of chromium ore is cr2o3. This kind of sand has stable heating volume and high thermal conductivity. When in contact with molten metal, it not only has good resistance to alkaline slag, does not react chemically with iron oxide, etc., but also has The characteristics of solid-phase sintering can effectively prevent the penetration of molten metal and avoid sand staining defects. It is suitable for raw sand and coatings for gradually shaping cores of various stainless steel, alloy steel and carbon steel.
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