Basic concepts of precision casting

        It includes: investment casting, ceramic mold casting, metal casting, pressure casting, lost foam casting.

        Which is more commonly used is melt mold casting, also known as the lost wax casting: selection of suitable casting mould materials (such as paraffin) manufacturing investment casting; casting repeated dip refractory coating and cast refractory sand process, hardening type shell and dry; the internal revestment melt away and get cavity; shell firing to obtain sufficient strength and burn the residual melt mold materials,; pouring need metal materials; solidification shell after sand cleaning to obtain high accuracy of the finished product. Heat treatment and surface treatment according to the needs of the product or heat treatment.