1. There are few pores inside the casting, and the rigidity of the product after heat treatment can be greatly improved, even exceeding that of die-casting products.
2. The product has low density. Relying on liquid self-gravity molding, the density of low-pressure casting machine products is lower than that of die casting, and its strength is also slightly lower, but its elongation is higher.
3. The surface finish of the product is not high. After cooling and shrinkage, the surface of cast products is prone to pits similar to shot blasting.
4. Filling is slow and production efficiency is low.
5. The mold life is longer than die casting, and the mold cost is low.
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