The foundry-related characteristics of chromite sand

1.Excellent chilling performance, it can affect temperature gradient without decreasing heat cracks, promote directional solidification without using chills;

2.It is inactive, therefore it doesn’t react with metallic oxide and won’t be wetted by molten manganese steel.Chromite sand can be successfully used with manganese steel casting. If the painting of casting mould is good and with low silicon oxide, there won’t be iron olivine reaction;

3.Low linear expansion. Linear expansion is one of the factors that causes sand inclusion in casting mould. Therefore chromite sand can be used to mix green sand mold for heavy casting;

4.Through fine grain sintering, with chilling performance and high residue hot strength, chromite sand can eliminate metal penetration;

5.It is universal, can be used with all kinds of binding agent;

6.No harm for human health.

Globally glass industry consumes 0,75–1 Mt/a of refractories, far less than steel. The demand for higher-performance refractories such as magnesia-zircon is increasing. Over 95 % of refractories used in the glass industry are shaped. Monolithics are used in combination with shapes. Environmental concerns prove to be the major restraint for the refractories market. Moreover, because of moderation in raw material costs and refractories prices, growth is restricted.

The source:http://www.chinafirebrick.com/Company_News_73.html