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High cost-effective Mullite and Bauxite Substitute Zircon Sand of Casting Sand for Investment Casting
1. Description:
Substitute Zircon Sand of Casting Sand is made of Mullite and Bauxite,it's the new products of our company .
It is roughly the same as that of zircon sand, slightly lower than that of chromite sand, which is used as molding material.It can effectively prevent the casting from expanding defects.
The price of zircon sand is cheaper, about 1 / 3 of traditional zircon sand and 1 / 2 of chromite sand
Main properties of zircon sand:
a. The fire resistance is above 1750-1800 ℃, and the chemical stability at high temperature is much better than that of silica sand, which can be used for Cast steel, cast iron and various non-ferrous alloys.
b. It is an electric melting material with compact texture and better durability than sintered ceramsite.
c. After heating, the expansion rate is about 1 / 5 of that of silica sand, which is roughly the same as that of zircon sand, slightly lower than that of chromite sand, which is used as molding material.
2. Application:
a. Refractory raw materials: used for the production of zircon stone brick, staggered corundum electric melting brick, sintered brick, nozzle brick, glass furnace ramming material, castable
b. Ceramics: stable chemical properties, is a high-quality and cheap opacifier, widely used in the production of various building ceramics, sanitary ceramics, daily ceramics, first-class crafts ceramics, etc
In the processing and production of ceramic glaze, it has a wide range of application and measuring force
c. Glass: color picture tube in TV industry, emulsion glass in glass industry
d. Coating: good suspension stability, excellent thixotropy and fluidity, good brushing performance, no brush marks on the coating, low organic content, low gas generation, high coating strength.
e. Casting: it has the characteristics of good thermal conductivity, small thermal expansion, good thermal shock stability, high fire resistance, and large heat storage coefficient of zirconium sand.
3. The Physical and Chemeical Index
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