Stainless steel casting has the advantages of high dimensional accuracy and good surface quality, and investment casting is an advanced technology that is widely used with little and no cutting. In simple terms, the process is to use fusible materials to make fusible model investment molds. An important step in casting is casting, so what are the common casting methods for stainless steel casting?

1. Directional crystallization

Some investment castings, such as turbine blades, magnets, etc., if their crystal structure is columnar crystals arranged in a certain direction, their working performance can be improved a lot, so investment casting oriented crystallization technology is rapidly being developed. 2. Crystallization under pressure

Put the shell in the pressure tank for pouring. After finishing, immediately close the pressure tank, and pass high-pressure air or inert gas into the tank to solidify the casting under pressure to increase the density of the casting.

3. Vacuum suction pouring

Put the mold shell in the vacuum casting box, suck the gas in the cavity through the tiny pores in the mold shell, so that the liquid metal can better fill the cavity, copy the shape of the cavity, improve the accuracy of the casting, and prevent air holes and pouring. Insufficient defects.

4. Thermal gravity pouring

This is a widely used form of pouring, that is, after the shell is taken out of the baking furnace, it is poured at high temperature.