For overhead pipeline, welding with basic-compound coated electrodes and pre-welding heating of the joint will reduce the joint thermal -stress.
采用碱性药皮焊条和焊前接头预热的施焊方法，焊接的空间管道接头热应力小。
Care shall be taken to avoid stress concentration due to welding, heating and discontinuity of the structure or build-in stress.
应该特别注意由于焊接，加热和结构的非连续性产生的应力集中和嵌入的应力。
The paper prompts a new process of making surface compressive residual stresses by the rule of Anti-Welding-Heating Treatment.
本文提出了采用逆焊接加热处理原理制造表面压应力的新方法。
The paper prompts a new process of making surface compressive residual stresses by the rule of Anti-Welding-Heating Treatment.
本文提出了采用逆焊接加热处理原理制造表面压应力的新方法。
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