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Introduction and advantages of chromite sand

[2016-03-24]

Chromite ore is also called chromite sand which is a kind of special sand for casting. Some natural spinel based mainly on chromite ore, then be crushed, grinded and filtered, thus filter the specified size chromite sand out which can be used as modeling sand.

The main content of chromite sand is Cr2O3. It is characterized with stable heating area, high thermal conductivity. And when the chromite sand touches melting metal, there is not chemical reaction occurs with iron oxide, so it has good alkaline resistance. What is more, the sand itself has a feature of solid phase sintering which protects itself from penetration of molten metal, thus avoiding sand stick to some other metals. With these characters the chromite sand can be used as raw sand and coating of molding and core making for stainless steel, alloy steel and carbon steel.

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