Stainless steel casting is not only suitable for casting of various types and alloys, but also produces castings with higher dimensional accuracy and surface quality than other casting methods. Even casting methods that are difficult to cast are complex, high temperature resistant, and are not easy to process. , Can be cast by investment casting.

The so-called investment casting process is simply to use fusible materials (such as wax or plastic) to make a fusible model (referred to as the investment model or model), coated with several layers of special refractory coating on it, after drying and hardening After forming an integral mold shell, use steam or hot water to melt the mold from the mold shell, and then put the mold shell in the sand box, fill it with dry sand molding, and finally put the mold into the roaster. Roasting (if high-strength mold shell is used, the mold shell after demolding can be directly fired without molding), after the mold or mold shell is roasted, molten metal is poured into it to obtain a casting.