Stainless steel casting is not only suitable for all kinds of types, all kinds of alloy casting, and the casting dimension precision, surface quality is higher than other casting methods, and even other casting methods are difficult to cast the complex, high temperature resistant, not easy to process the casting, can be used investment mold precision casting.

So-called investment casting process, simply be with fusible materials (such as wax material or plastic) into the meltability model (referred to as "investment pattern or model), on which the coated with several layers of tailor-made refractory coating, after drying and hardening type to form a whole shell, reoccupy steam or hot water from the melt in the shell model, and then put type shells in the sand, dry sand by filling in all round its modelling, finally will be cast into the furnace after high temperature roasting (such as high strength shell, can need not modelling and will release the shell directly after roasting), cast type or shell after roasting, and are casting in pouring molten metal.