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前言从60年代后期开始,以检查钢板为主的超声波探伤自动化逐渐得到了发展。目前为了节省劳力,已在钢厂普遍采用。特别是用钢板制造焊接管和螺旋焊缝管的钢管厂,配备了包括超声波在内的多种类型的生产线自动探伤装置,这对保证产品质量作出了很大贡献。但焊缝自动化探伤却刚刚开始,特别是对于以代
Foreword From the late 1960s, ultrasonic flaw detection based on inspection of steel plates has been gradually developed. At present, in order to save labor, has been widely used in steel mills. In particular, the steel pipe factory which manufactures welded pipes and spiral welded pipes with steel plates is equipped with various types of automated testing equipment for production lines, including ultrasonic waves, which greatly contribute to the quality of the products. However, automatic weld inspection has just begun, especially for the generation