Stainless steel welded joints of the polished joints require smooth parts must be polished after welding, grinding should be straight before the joints should be flattened (sheet metal hammer can not hammer, in order to avoid injury to other surfaces). Grinding wheel selection disc wheel, abrasive grain size from coarse to fine, abrasive particle size order:

1 macroscopic observation of wear-free after the next process, grinding carbon steel grinding wheel shall not be polished stainless steel, carbon steel particles to avoid embedded in the stainless steel, the joints rusty yellow.

2. Stainless steel welded joint polishing of the polished should be selected green oxide green polishing paste, polishing wheel walking should be in a direction of reciprocating movement, the degree of force should be maintained on average. Eliminate the grinding traces, roughness and both sides of the base metal as far as possible consistent.

3. Stainless steel welded joints of the pickling and passivation treatment of stainless steel welding, the weld must be pickling, passivation treatment. The purpose of pickling is to remove the scale of the weld and the area of the heat affected zone. The purpose of passivation is to re-form the surface or polished surface of the pickled surface with a layer of colorless, dense oxide film. Commonly used pickling methods are two: acid pickling and acid pickling. Acid pickling is divided into dip and scrub. Immersion method for small parts, the parts in the pickling tank soak 25 ~ 45min, took out after the net with water. Washing method for large parts for use, with a brush or mop repeatedly wash the welding joints to white, washed with water.