The advantages of lost foam casting

- Mar 11, 2020-

1.High precision casting

Lost foam casting is a new process with almost no margin and precise molding.This process does not require mold removal, no parting surface, and no sand core, so the casting has no flash, burrs, and draft angle, and reduces Dimensional error caused by combination. The surface roughness of the casting can reach Ra3.2 to 12.5μm; the dimensional accuracy of the casting can reach CT7 to 9; the machining allowance is up to 1.5 to 2mm, which can greatly reduce the machining cost, and can reduce 40% compared with the traditional sand casting method % To 50% machining time.

2. Flexible design

Provides full freedom for structural design of castings. Highly complex castings can be cast from foam plastic die combinations.

3. No core in traditional casting

Therefore, in the traditional sand casting, uneven wall thickness due to inaccurate sand core size or inaccurate core position will not occur.

4. Cleaner Production

There is no chemical binder in the molding sand, and the foam is not harmful to the environment at low temperature, and the recovery rate of the used sand is more than 95%.

5. Reduce investment and production costs

Reduce the weight of casting blanks and small machining allowance