Cleaning of stainless steel stamping elbow after fabrication:

1. According to the requirements and surface conditions of the workpiece, alkali cleaning, water-soluble cleaning agent, chlorine solvent sand blasting, shot blasting and other methods are used for cleaning

2. Generally, pickling is not used for cleaning

Stainless steel stamping elbow correction:

1. The workpiece is corrected by static load, and it is generally not suitable to knock locally

2. After correction, stress relief annealing should be carried out below the original tempering temperature

3. Austenitic stainless steel stamping elbow workpiece, after correction, stress relief treatment is carried out below 300? C

Quality inspection of stainless steel stamping elbow:

1. The workpiece shall be inspected according to the items and requirements specified in the corresponding technical documents

2. When the mechanical properties of the workpiece are unqualified, the heat treatment can be repeated, but the number of times of repeated quenching or solution solution is generally less than twice. Supplementary tempering of workpieces is not considered as repeated treatment

3. Pre heating, annealing or high temperature tempering should be carried out before re quenching for stamping elbow and wear-resistant elbow of martensitic stainless steel after quenching or low-temperature tempering.