ceramic foundry sand

Description

Ceramic Foundry sand is made of high quality bauxite, which has been remelted and then blown into ball shape. Ceramic Foundry sand is a new casting material with high surface finish and good air permeability.

Advantages:
Spherical grain, low thermal expansion, good anti-breakness, well refractory, low density, neutral materials

 The performance characteristics
1. Fire resistance; Composition is stable, not easy to produce chemical changes, it can reach ***0℃ refractoriness.
2. Liquidity; For spherical particles, its mobility is very good, modeling easy compact, and can maintain good air permeability.
3. Air permeability; The permeability of molding sand mainly depends on the size, size distribution, size and type of binder.
4. Thermal expansion coefficient; Orb of sand small thermal expansion coefficient, thermal expansion rate: 0.*3% (***0℃ heat for *0 minutes).There is almost no expansion in the pouring process, which greatly improves the precision of the casting and its performance is comparable to that of zirconium sand.
5. Angular coefficient; Spherical ceramic foundry sand has excellent angular coefficient, so the molding sand concentration, high compactness, saving more than *0% of the cost of molding sand.
6. Reuse performance; By reducing the amount of waste sand and increasing the amount of effective recycled sand, the loss of molding sand is greatly reduced.