JB1152-81《锅炉和钢制压力容器对接焊缝超声波探伤》标准,自1982年7月1日开始执行以来,对保证产品质量、保障压力容器安全起了一定的作用。中国机械工程学会压力容器学会和重庆市科协无损检测服务部,分别在福州、哈尔滨和重庆市举办过JB1152—81标准讲习班,收到了很好的效果。本文根据讲习班学员提出的问题和一些读者来信的询问,归纳成十个方面,即一、标准的特点;二、适用范围和操作者;三、探伤仪和探头;四、试块;五、操作;六、距离—波幅曲线;七、验收标准;八、扫描线的调节;九、表面声能失差;十、其它。请机械部通用机械研究所潘荣宝同志统一解答 JB1152-81 “Boiler and Steel Pressure Vessel Butt Welds Ultrasonic Flaw Detection” standard, since July 1, 1982 began to implement, to ensure product quality and ensure the safety of pressure vessels played a role. China Institute of Mechanical Engineers Pressure Vessel Association and the Chongqing Municipal Association for non-destructive testing services, respectively, in Fuzhou, Harbin and Chongqing held JB1152-81 standard workshops, received very good results. This article is based on the questions raised by the participants in the workshop and the inquiries from some readers, summarized in ten aspects, namely, the characteristics of a standard; two, the scope and operator; three, flaw detector and probe; four test blocks; five, Operation; Sixth, distance - amplitude curve; Seven, acceptance criteria; Eight, the adjustment of the scan line; Nine, the surface acoustic energy difference; Please Machinery Department of General Machinery Institute Pan Rongbao unified answer