相控阵技术在制冷压力容器环向封闭焊缝中的研究与应用  

作　　者：郭破江 李敬一 古湘龙 侯华金 张杰文 

机构地区：[1]长沙格力暖通制冷设备有限公司,湖南长沙410600

出　　处：《科学技术创新》2020年第35期185-186,共2页Scientific and Technological Innovation

摘　　要：因受内部结构、母材厚度、清洁度等限制,在制造过程中制冷压力容器的最后一道环向封闭焊缝无法采用射线检测和衍射时差法超声检测(TOFD)满足标准要求。为解决这一问题,笔者引入相控阵超声检测技术,通过运用其工作原理及优点,提供了一套具体实施方案,有效地解决了脉冲反射法超声检测不可记录、效率低下等问题。In the manufacturing process of refrigerating pressure vessel,due to internal structure,thickness of base material,cleanliness and other restrictions,the last circumferential closed weld of refrigerating pressure vessel cannot meet the standard requirements byusingRadiographic testing and Time of flight diffraction ultrasonic testing(TOFD).In order to solve this problem,the author introduced Phased array ultrasonic testing technology,and provided a set of concrete implementation scheme by using its working principle and advantages,which effectively solved the problems such as unrecordability and low efficiency of pulse reflection ultrasonic detection.

关 键 词：制冷 相控阵 压力容器 环向封闭焊缝 无损检测 

分 类 号：TG441[金属学及工艺—焊接]