火焊 [机] fire welding
- 采用焊接热模拟技术和显微分析方法,研究了回火焊道热处理对X80级管线钢焊接热影响区韧性的影响规律。
The effects of tempering weld-pass treatment on toughness of HAZ of X80 pipeline steel were studied by the technique of welding thermal simulation and the method of microscope analysis.
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