Foundry Sand With Good Liquidity And Thermal Expansion Coefficient

We are engaged in distributing, exporting and supplying excellent quality Foundry Sand with Good Liquidity and Thermal Expansion Coefficient to our valuable clients.
Liquidity:
The shape of Nice Foundry Sand(NFS) is spherical with very good liquidity, which is better than other foundry sand. Easy and tight during molding with good ventilation. While the apperance of quartz sand and magnesium olivine sand are polygon with bad liquidity. For example, a Power Equipment Co., Ltd. is Chengdu use magnesium olivine sand as filled sand to produce engine body. Because of the bad liquidity, scars and other defects often occur. After using NFS, this phenomenon has been markedly improved, improving the cost rate of 5%.

Thermal Expansion Coefficient:
During the gigh-temperature casting process, the size foundry sand will happen trace change, thereby affecting the precision casting size. If the thermal expansion coefficient of foundry sand is too large, it will result in sand sticking, scarring and other casting defects.

The thermal expansion coefficient of NFS is extremely small. There is almost no swelling phenomenon in the casting process, which greatly improve the accuracy of the casting, and the performance can be comparable with zircon sand.