Q: Why silica sol process of investment casting is selected for manufacturing stainless accessories?

A: Compared to silica sol shells, water glass shells retain the water glass binder, resulting in lower overall high-temperature strength, deformation resistance, and casting dimensional accuracy compared to silica sol shells. The surface of castings produced using the water glass process is relatively rough, with frequent sand holes and shrinkage defects. However, its production cost is relatively low, so most casting manufacturers choose this process for casting production.

The castings produced by the silica sol process have high dimensional accuracy, surface smoothness, and precision, making them suitable for the production of high-quality precision castings, but the cost is relatively high.

Q: Can the machining of silica sol steel castings be exempted?

A: The surface roughness is also very low. In many cases, the castings obtained by this method only require grinding and polishing allowances, which can eliminate the mechanical processing process. Even if processed, only a small amount of machining allowance is required.

Q: Whats your monthly capacity of silica sol process foundry?

A: 200 Tons per month.