304-316 precision casting

Precision casting includes investment casting, ceramic mold casting, metal mold casting, pressure casting, and lost foam casting.
One of the most commonly used is investment casting, also known as lost wax casting: selecting suitable investment materials (such as paraffin) to manufacture investment molds; Repeat the process of applying refractory coating and spreading refractory sand on the mold, hardening the mold shell and drying it; Dissolve the internal mold to obtain the mold cavity; Baking the shell to obtain sufficient strength and burning off residual investment materials,; Metal materials required for pouring; Solidification cooling, dehulling and sand cleaning to obtain high-precision finished products. According to the product's needs or through heat treatment, cold processing, and surface treatment.