Glass cloudburst treatment art for improving anti-stress corrosion performance of welding joint of stainless steel
A technology of shot peening and welded joints, which is applied in the field of glass shot peening to improve the stress corrosion resistance of stainless steel welded joints, and can solve problems such as electrochemical corrosion and unfavorable austenitic stainless steel welded joints to resist stress corrosion
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[0021] Refer to attached figure 1 , a glass shot peening process to improve the stress corrosion resistance of austenitic stainless steel welded joints:
[0022] 1. Before the glass shot blasting treatment, use a certain surface cleaning treatment method to remove all dust, scale and cladding from the surface of the workpiece 2 to be treated. When required, magnetic particle testing, dye penetrant testing, ultrasonic or other defect and crack detection processes shall be completed prior to glass shot peening. The quality of the glass shot must meet certain requirements.
[0023] 2. Aim the jet welding torch 1 at the weld to be processed and the heat-affected zone, the width of the heat-affected zone is d 2 is the weld width d 1 2 to 3 times of that, if the width of the weld is 10mm, the width of the heat-affected zone on both sides of the weld is about 20-30mm. Then, the projectile is driven by compressed air, so that it reaches the defined weld treatment area of the hig...
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