...无损检测，金属磁记忆，焊接裂纹，应力集中 [gap=4906]Keywords: nondestructive test; metal magnetic memory; welding cracks; stress concentration ...
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welding cold cracks 焊接冷裂纹
Through the exploration of the mechanism of welding cracks on beam hangers, the reason behind the crack is analyzed.
对游梁式抽油机悬绳器焊接裂纹产生原因进行了分析。
Spot inspection indicates that the welding cracks can be evaluated exactly by the location feature of derivative MMM signal.
现场检测表明，利用一阶微分处理后的磁记忆信号定位特征，可准确地对焊接裂纹进行检测。
Using the technology in production, can effectively prevent the generation of welding cracks, it can be extended to the applications in similar welding structure.
生产中采用该工艺措施后，有效地防止了焊接裂纹的产生，值得在类似结构焊接中加以推广应用。
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