Reduce the defective rate of stainless steel castings

Reducing the defective rate of stainless steel castings is a complex issue that requires approaches from many aspects, including the following:

1. Optimize the casting structure: Reasonably design the casting structure to reduce sudden changes in wall thickness and avoid defects such as thermal cracks and shrinkage.

2. Improve mold quality: Use high-precision molds to ensure the size and accuracy of the cavity and improve the accuracy of castings.

3. Control the melting quality: use pure raw materials, control the melting temperature and time, reduce impurities and gas content, and improve the quality of castings.

4. Reasonable selection of casting process: According to the structure and material characteristics of the casting, select the appropriate casting process, such as directional solidification, sequential solidification, etc., to reduce the defective rate.

5. Strengthen quality inspection: Conduct strict quality inspection on castings, including size, appearance, metallography and other aspects to ensure compliance with requirements.