Cleaning method of stainless steel precision casting

1. Shot blasting. The impact force of high-speed steel shot, iron shot and abrasive particle flow is used to clean the core and sand, and polish the casting surface.

2. Roller cleaning. Put the casting and Star iron into the circular drum. When the drum rotates, the sand inside and outside the casting is cleaned and the surface of the casting is polished by the mutual collision and friction between the casting, Star iron and waste sand.

3. Hydraulic sand cleaning. The high-pressure water is injected from the spray gun to the treated casting through the pipeline, and the core and casting sand are cleaned by the kinetic energy and scouring action of the water flow.

4. Water blasting sand removal. After the casting mold is poured, the casting is cooled to the specified temperature, then the box is opened, and it is immersed in the water pool. The water penetrates into the casting mold through the gap and rapidly vaporizes in contact with the high-temperature metal. The shock wave can basically clean the sand attached inside and outside the casting.