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The overall heat treatment is to eliminate the stress generated by welding, stabilize various geometric dimensions, change the welding metallographic ...
1. The welding residual stress is caused by the uneven temperature distribution of the weldment caused by welding, the thermal expansion and contracti...
1. Classification of welds The welds of each part of the pressure vessel are divided into four categories: A, B, C, and D. Class A welds refer to the ...
1. The conditions of use are harsh, such as thick-walled vessels that are in danger of brittle fracture when working at low temperatures, and vessels ...
Whether the pressure vessel is necessary for post-weld heat treatment should be clearly specified in the design, and the current pressure vessel desig...
1. Relax the welding residual stress. 2. Stabilize the shape and size of the structure and reduce distortion. 3. Improve the performance of base metal...
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