【摘要】 小径管对接焊缝超声波探伤一直存在缺陷难以定位、定量的问题,且其壁厚在公差范围内正负变化较大,对根部缺陷的判定较困难。因此对小径管焊缝超声波探伤进行探讨。更多还原

【Abstract】 Ultrasonic inspection for butt weld of small diameter tubes has been difficult to locate,quantitative questions,and the wall thickness within the tolerance range of plus or minus larger changes,for root defects more difficult to determine. The paper investigates the ultrasonic inspection for weld of small diameter tubes.更多还原