Silica Sol Casting

Why Silica Sol for Investment Casting?

Silica sol castings are mainly used for products with highcorrosion resistance and precision dimensions, since silica sol steel casting can have much better surface quality and less geometrical deviation ofdimensions. The main silica sol steel castings we ever made include meatgrinder parts, valve castings, pump castings, marine hardware, and furnituredecoration etc.

Silica Sol Casting in Our Foundry

In our foundry, all the stainless steel castings are produced in silica sol casting. Stainless steel 304and stainless steel 316 are the main material grades for silica sol castings.We can produce unit weight 0.01kg-50kg and mainly exported to international market like USA, Australia, Canada, South Africa, etc. Silica sol casting canbe carried out for further machining.

Capability of Silica Sol Casting

·       Linertolerance of silica sol castings can be controlled with ±0.1mm, and the surfacefinish is Ra6.3.

·       Min.weight 0.01kg, Max. weight 50kg.

·       Castmin. hole: Φ2mm

·       Castmin. round corner: R0.1mm

·       Castmin thickness: 0.7mm

Silica Sol Casting vs Water Glass Casting

The silica sol investment castings have better dimensions andsurface quality, but just more expensive than water glass casting. Cost of silica sol casting is almost twice than the cost of water glass casting.Both silica sol casting and water glass casting belong to investment casting orlost wax casting. So, process of silica sol casting is almost the same as waterglass casting. But silica sol investment casting process uses silica sol zirconsand as the molding material, which can stand temperature up to 2000 degree.Below are the main differences between silica sol casting and water glasscasting.