Shell Mold Casting
Shell Mold Casting
Definition:
The molding sand mixed with resin is covered on the model and the preheated metal template, and the resin is heated to melt to form a thin shell. After being baked and hardened, it is removed from the template and used as a casting method for casting molds. .
Shell Mold Casting was invented by the Frenchman J Cronin in 1943. It was first applied in Germany in 1944 and adopted in other countries after 1947.
Crafting Process:
Cover the heated metal template with a heat-hardened molding sand to harden it into a thin shell. The thickness of the thin shell is generally 6-12 mm, which has sufficient strength and rigidity. Therefore, the upper and lower two shells are clamped with a fixture After tightening or sticking with resin, the casting mold can be formed without a sand box. The heating temperature of the casting metal formwork is generally about 300°C, and the molding sand used is resin sand.
Features And Uses:
The amount of molding sand used is reduced, and the obtained castings have clear contours, smooth surfaces, and precise dimensions, and can be machined without machining or only a small amount of machining.
Shell Mold Casting is especially suitable for castings of various alloys with large batches, high dimensional accuracy requirements, thin walls and complex shapes. However, the resin for Shell Mold Casting is expensive, the formwork must be precisely processed, the cost is high, and a pungent smell will be produced during pouring.
Eternal Bliss Alloy Casting & Forging Co, Ltd.
Caesar
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