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Other Materials and Standards on request.Stainless Steel: AISI 304, AISI 304L, AISI 316, AISI 316L and other stainless steel grade.Cast Steel Alloys: ZG20SiMn, ZG30SiMn, ZG30CrMo, ZG35CrMo, ZG35SiMn, ZG35CrMnSi, ZG40Mn, ZG40Cr, ZG42Cr, ZG42CrMo.etc on request.Cast Iron: Cast Gray Iron, Cast Ductile Iron, White Iron, Malleable Iron.etc.Carbon Steel: Low carbon, medium carbon and high carbon steel from AISI 1020 to AISI 1060.▶ Ferrous & Non-Ferrous Metals for Lost Foam Casting (LFC): Relieve negative pressure, then the dry sand falls into the screen, and the sand is recycled Relieve negative pressure, turn over the box to drop sand, and the sand is then reused Medium and large castings with few or no cavities, such as cast iron counterweights, cast steel axle housingsĪll sides of both halves of sand box are sealed by plastic films Small and medium-sized castings with complex cavities, such as engine block, engine cover

The original beads are heated to above the softening point to quickly vaporize and expand the foaming agent, forcing the beads to reach the foaming density required by the foam template, and then quickly cool to stop the foaming of the foam beads and maintain the pre-expanded volume.

The foam pattern is "invested" into the sand at the Fill & Compact process station allowing the sand into all voids and supporting the foam patterns external form.īefore making the foam patterns, the lost foam casting foundry should finish the process of pre-foam. OEM Custom Lost Foam Castings from China Casting Foundry Companyĭuring lost foam casting process, the sand is not bonded by adhensive materials, but a foam pattern is used to form the shape of the desired metal parts.