Casting Industry
White fused alumina (5-3mm and 3-1mm) and bauxite (0-1mm, 1-3mm, 35mm, 100mesh, 200mesh, 325mesh) are primarily used for investment casting and metal casting. The colloidal silica shell for precision casting requires premium refractory materials that have a high refractoriness, thermochemical stability, small uniform thermal expansion coefficient (0-1200ºC α), certain grain size and proper grain size distribution.
Advantage
Favored by precision casting companies, our refractory materials, white corundum and bauxites not only promote the quality of our products but also help reduce production cost. They are conducive to improving the surface layer of sand shell shelling and air permeability. The shell is made to have a higher cost performance.
