管座角焊缝PAUT检测试块设计  

PAUT Block Design for Fillet Weld of Pipe Seat

作　　者：项小强 武晶 赵岩 郭瑞杰 路兴才 皮亚东 赵子峰 XIANG Xiaoqiang;WU Jing;ZHAO Yan;GUO Ruijie;LU Xingcai;PI Yadong;ZHAO Zifeng(PipeChina Engineering Technology Innovation Co.,Ltd.,Tianjin 300450,China;China Petroleum Pipeline Research Institute Co.,Ltd.,Langfang 065000,China)

机构地区：[1]国家管网集团工程技术创新有限公司,天津300450 [2]中国石油天然气管道科学研究院有限公司,河北廊坊065000

出　　处：《机械》2025年第1期73-80,共8页Machinery

基　　金：国家管网集团创新项目——站场管座角焊缝相控阵超声检测技术研究(CXGS-ZC-CTZX-2022-010)。

摘　　要：油气工艺管线的管座多采用小径厚壁的特殊形貌结构,进行PAUT检测时需要严格进行灵敏度校准和工艺验证,才能保证检测结果准确性和可靠性。目前没有标准明确地规定管座角焊缝PAUT校准和工艺验证所需的对比试块和模拟试块,因此针对油气工艺管线管座角焊缝的特殊性,通过对管座尺寸、检测工艺、信号干扰、缺陷类型、缺陷尺寸等因素进行理论和实用性分析,首次提出并设计了一套管座角焊缝专用对比试块和模拟试块设计规则。设计出的专用对比试块成功消除了体积信号干扰,满足了小管径、大角度、高深度的校准需求;模拟试块能够完成不同缺陷类型的工艺的验证。试块应用效果良好,填补了管座PAUT试块设计的空白,为PAUT检测适用性和管座角焊缝无损检测自动化发展提供了支持。The prevalent utilization of small-diameter thick-walled pipe seats of oil and gas process pipelines requires rigorous sensitivity calibration and process validation during PAUT detection.However,no standardized regulations have been defined to reference test blocks and simulated test blocks for the accuracy and reliability of results.In this work,considering the particularity size,detection surface,detection technology,signal interference,defect type and size,we designed a set of rules by theoretical and practical analysis for the first time.The reference test block we designed successfully eliminated interference signal of volume reflection and achieved the calibration of PAUT requirements.The simulated test block successfully passed process verification.Both of the blocks demonstrated a favorable application effect.This work provides a technical support for the design of PAUT blocks and the development of automation for non-destructive testing.

关 键 词：管座角焊缝 相控阵超声检测(PAUT) 对比试块设计 模拟试块设计 

分 类 号：TG115.28[金属学及工艺—物理冶金]