钢管斜向缺陷的相控阵超声检测参数  

Phased array ultrasonic testing parameters of oblique defects in steel tubes

作　　者：严欣贤 林光辉 王子成 韩志雄 左义锋 刘涛 金耀辉 YAN Xinxian;LIN Guanghui;WANG Zicheng;HAN Zhixiong;ZUO Yifeng;LIU Tao;JIN Yaohui(Wuhan Zhongke Innovation Technology Co.,Ltd.,Wuhan 430068,China)

机构地区：[1]武汉中科创新技术股份有限公司,武汉430068

出　　处：《无损检测》2023年第4期39-42,76,共5页Nondestructive Testing

摘　　要：以相控阵探头检测钢管的斜向缺陷为例,对斜向缺陷定义、相控阵探头的技术特点以及相控阵探头检测斜向内部缺陷、外部缺陷的适应性等主要参数进行分析,建立相应模型并加工了样管进行斜向缺陷检测试验。试验结果表明,对于通用的无缝管(直径厚度之比大于5),可采用相控阵探头偏置法对斜向内外缺陷进行检测。该结论可为钢管斜向缺陷检测工艺中相控阵探头的设计、选用等提供一定理论依据,也可为其他类似相控阵探头的设计、选用提供借鉴。Taking the oblique defect of steel pipe detected by phased array probe as an example,the definition of oblique defect,the technical characteristics of phased array probe and the adaptability of phased array probe to detect oblique internal defect and external defect were analyzed,the corresponding model was established and the pipe sample was manufactured for oblique defect detection test.The experimental results show that the phased-array probe bias method can be used to detect the oblique internal and external defects of the general seamless pipe(the ratio of diameter to thickness is greater than 5).This conclusion can provide some theoretical basis for the design and selection of phased array probe in the steel tube oblique defect detection process,and can also provide reference for the design and selection of other similar phased array probes.

关 键 词：相控阵技术 钢管斜向缺陷检测 相控阵探头 斜向缺陷角度范围 

分 类 号：TG115.28[金属学及工艺—物理冶金]