螺旋埋弧焊管焊縫在線(xiàn)超聲波自動(dòng)探傷準(zhǔn)確性分析

Analysis of Precision of On-line Ultrasonic Flaw Detection of SAW Spiral Welded Pipe

摘要: 簡(jiǎn)要介紹了螺旋埋弧焊管焊縫在線(xiàn)超聲波自動(dòng)探傷的方法,從探傷儀器和探頭的性能匹配、探頭貼附支撐機(jī)構(gòu)的設(shè)計(jì)、探傷執(zhí)行機(jī)構(gòu)的響應(yīng)與運(yùn)行、耦合水的控制、探傷工藝的合理性、探傷操作人員的技術(shù)水平、各電氣執(zhí)行機(jī)構(gòu)對(duì)超聲波自動(dòng)探傷的干擾、鋼管的成型質(zhì)量等8個(gè)方面分析了影響探傷準(zhǔn)確性的各種原因,并提出相應(yīng)的對(duì)策。

Abstract: Described in the paper is the process of on-line automatic ultrasonic flaw detection of SAW spiral welded pipe, focusing on analysis of the different elements responsible for the detection precision which involves eight major aspects, namely, the function configuration of the detector and the probes, the design of the probe support mechanism, response/running of the actuator, control of water coupling, suitability of the detection process, professional qualification of the inspectors, interferences with the UT auto-inspection operation caused by different electrical actuating parts and the pipe-formation quality. Based on the said analysis, relevant countermeasures are proposed.

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