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某工程网架杆件焊缝发生断裂,进行超声检测时,发现杆件焊缝内部存在危害性缺陷,分析焊缝断裂及缺陷产生的原因,并对缺陷返修提出建议。
During the ultrasonic testing, it was found that there were some harmful defects in the welding seam of the rod. The causes of the weld fracture and the defects were analyzed. Some suggestions were put forward for repairing the defects.