What are the methods to prevent contamination of stainless steel castings

Methods to prevent contamination of stainless steel castings:

1. High voltage, high current density impact method. That is to say, in the early stage of the oxidation of stainless steel castings, high-voltage electric shocks are used to reconnect the oxidized parts with electricity.

2. Surface frosting process. This method is to fill the gaps left by the oxide layer with the polished aluminum sheet, so that the resulting gaps are combined to act as a bridge.

3. Surface shot peening method. This method is to use a round head hammer to open the gap and close the mouth with a round head hammer to achieve a single piece. For the pollution degree of stainless steel castings, we have to choose the corresponding corresponding method.