【Daily Question】【Static Equipment AC Version...Question 171】June 20, 2019 Multiple-choice questions...Fill-in-the-blank questions
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bg14.jpg【Daily Question】【AC Version for Static Equipment...Question 171】June 20, 2019 Multiple-choice questions...Fill-in-the-blank questions .............................................................Reward rules: 3 wealth for participation, 5–10 wealth for correct answers. ...........................................................................The main purposes of post-weld heat treatment are ( ) and ( ). ...........................................................................Answer: Eliminate excessive welding stress to avoid stress corrosion
Eliminate welding stress, stabilize the shape and size of the structure, and reduce distortion
Eliminate excessive welding stress to avoid stress corrosion
Eliminate residual stresses and improve the microstructure of the welded joint
Eliminate welding residual stresses, stabilize the shape and dimensions of the structure, and reduce distortion
Hydrogen removal, elimination of welding stress, improvement of weld microstructure and overall properties
Eliminate welding stress, improve weld microstructure and overall properties
Eliminate excessive welding stress? Avoid stress corrosion
Eliminate excessive welding stress? Avoid stress corrosion
Eliminate excessive welding stress? Avoid stress corrosion