Ceramic foundry sand for resin sand can reduce the cost of raw materials.
The success of ceramic foundry sand affects all aspects of the casting field, and its application is becoming more and more extensive, which enables us to control product quality more efficiently and accurately, and produce high-quality parts in line with environmental protection.The ceramic foundry sand produced by Luoyang Ruiyu has the advantage of small thermal expansion coefficient, and its performance can be comparable to that of zircon sand. The casting will not have expansion defects when the molding sand is prepared with the ceramic foundry sand. Ceramic foundry sand is a neutral material,and both acid and alkali binder can be used with . Ceramic foundry sand also has a special advantage, that is, it is not broken, no dust, can be recycled repeatedly, recycled for hundreds of times, and the cost performance is naturally high.
Compared with chromite sand and zircon sand, the price of ceramic foundry sand is only 25-50% of zircon sand and chromite sand. At the same time, since the sand grain is spherical and the surface area is small, the added amount of resin can be reduced by 30-50%, and the added amount of water glass is less than or equal to 4%; As a result, the casting defects caused by the binder are reduced and the rate of finished products is increased.
Ceramic foundry sand has many advantages, such as high refractoriness, easy to collapse; the refractoriness of ceramic foundry sand can reach above 1820 ℃; The mullite phase of ceramic foundry sand is much higher than that of sintered products, and it has good refractoriness. Ceramic foundry sand has good fire resistance, high thermal conductivity, good stability, no cracking and so on.
The application scope of ceramic foundry sand is also very wide.It can be used in lost foam casting (filling sand), sand casting (sodium silicate sand, resin sand, precoated sand), precision casting and polishing of copper and aluminum parts.