焊缝氢含量的测试分析表明，阵列式射流冲击热沉系统可以改善接头的残余应力分布，防止冷却水侵入焊缝。
The hydrogen contents investigations show that the FSW process with array jet impingement sink appaatus can prevent the joints form the effect of colding water.
如何提高erw钢管焊缝冲击韧性是制管技术中的一大难题。
How to increase the welded seam impacting toughness of ERW pipe is a great problem among the technology of pipe manufacture.
为了解随焊冲击碾压法机理，用数值计算方法对冲击碾压轮引起薄壁结构焊缝金属塑性流变行为和应变场变化进行了分析。
The plastic flow and the variation of the strain field in welds caused by impact rollers were analyzed numerically to study the effect of weld with trailing impact rolling (WTIR).
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