How to reduce the defective rate of stainless steel castings

How to reduce the defective rate of stainless steel castings? Below we will introduce the specific methods to reduce the defective rate of stainless steel castings:

1. Castings should try to avoid large horizontal surfaces;

2. Flat wall cast holes should be reinforced with convex surfaces to reduce wall thickness;

3. The structure of the casting should be cooled where possible and able to shrink without hindrance;

4. Large-area mezzanine chambers such as internal water channels and gas channels in castings should have multiple connecting columns.

5. The connection between the walls of the casting should strictly prevent sharp corners and metal aggregation, and the transition between thick and thin walls should be gradual, strictly prevent sudden changes, avoid hot spots and stress concentration, and form hot cracks, shrinkage, etc.;

6. For thick sections of castings, hollow or cast-hole structures should be used as much as possible, and ribs should be appropriately reinforced;

7. The wall thickness of stainless steel castings should be uniform to prevent shrinkage and cracking. While ensuring continuous solidification, the wall thickness should be changed in one direction as much as possible. While ensuring simultaneous solidification, it should have equal cross-sections. thickness.