Lost Form Casting Equipment
Lost foam casting, which is full mold casting process, put the foam mold into the sand, then vacuum casting, assemble the casting part similar foam mold, then coating with refractory paint, bury in the silica sand, after vibration modeling, casting under negative pressure, gasify the foam mold, the hot metal will take place of mold, after cooling, then form the casting.
The advantage of lost foam casting:
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good quality, low cost
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no limit on material, suitable for all size dimension high accuracy, clean surface, less cleaning, save time for machining; precise forming of new technology, the process need not take mold, parting surface and sand core, casting without flash, burr and draft Angle, and reduces the error caused by combination of core sizes. The casting surface roughness can reach Ra3.2 to 12.5μm; Casting dimension accuracy can reach CT7 to 9; Machining allowance for a maximum of 1.5 to 2 mm, compared with the traditional sand casting method, can be reduced by 40% to 50% of the mechanical processing cost.
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less internal defect, compact structure
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Can realize large scale, large batch production, automatic production, eco-friendly.
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Can improve the production environment, reduce the labor hardness, reduce energy consumption
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Cleaner production: no chemistry in green sand binder, harmless to the environment, low temperature foam sand recovery more than 95%
Equipments
