Working procedure after making stainless steel stamping elbow cleaning:
1. According to the requirements of the workpiece and surface conditions, use alkaline cleaning, water-soluble cleaning agent, chlorine solvent sandblasting, shot blasting and other methods for cleaning
2. Generally, the method of pickling is not used for cleaning
Correction of stainless steel stamping elbow:
1. Workpieces are corrected with static load, generally not suitable for local knocking
2,. After correction, stress relief annealing should be performed at a temperature lower than the original tempering temperature
3. Austenitic stainless steel stamped elbow workpiece, after correction, under 300? C for stress relief treatment
Quality inspection of stainless steel stamping elbow:
1. Workpieces are inspected according to the items and requirements specified in the corresponding technical documents
2. When the mechanical properties of the workpiece are not qualified, the heat treatment can be repeated, but the number of repeated quenching or solution treatment is generally not more than twice. Supplementary tempering of workpieces is not counted as repeated processing
3. Quenched or low-temperature tempered martensitic stainless steel stamped elbows and wear-resistant elbow workpieces should be preheated, annealed or high temperature tempered before repeated quenching.