Material Properties Of Investment Casting

The performance of the mold material should not only ensure the convenient preparation of accurate dimensions and high surface finish, good strength and light weight of the investment mold, but also create conditions for the manufacture of the shell and the acquisition of good castings. Molds are generally formulated with waxes, natural resins and plastics (synthetic resins). Where the mold mainly prepared with wax is called wax-based mold, their melting point is low, 60~70 °C; Where the mold material mainly formulated with natural resin is called resin-based mold, the melting point is slightly higher, about 70~120 °C.