压力容器
壓力容器
압력용기
2013年
9期
54-59
,共6页
祝新伟%潘金平%谭连江
祝新偉%潘金平%譚連江
축신위%반금평%담련강
聚乙烯管道%热熔接头%冷焊缺陷%微波扫描%真密度测试
聚乙烯管道%熱鎔接頭%冷銲缺陷%微波掃描%真密度測試
취을희관도%열용접두%랭한결함%미파소묘%진밀도측시
polyethylene piping%thermo-fusion welds%cold weld defect%microwave scanning%true densi-ty test
以聚乙烯（ PE）管道热熔接头为检测对象，使用微波扫描和真密度测试的方法研究热熔接头中的冷焊缺陷。首先对无缺陷的热熔接头进行微波扫描检测，得到的微波扫描图像作为参考；然后对不同焊接条件下得到的含有冷焊缺陷的热熔接头进行微波扫描检测，得到具有不同特征的扫描图像。对这些扫描图像进行分析，可以判别导致聚乙烯管道热熔接头冷焊缺陷的焊接工艺问题。利用真密度方法对不同热熔接头进行了测试，测试结果验证了微波扫描法对聚乙烯管道热熔接头冷焊缺陷检测的有效性和可靠性。
以聚乙烯（ PE）管道熱鎔接頭為檢測對象，使用微波掃描和真密度測試的方法研究熱鎔接頭中的冷銲缺陷。首先對無缺陷的熱鎔接頭進行微波掃描檢測，得到的微波掃描圖像作為參攷；然後對不同銲接條件下得到的含有冷銲缺陷的熱鎔接頭進行微波掃描檢測，得到具有不同特徵的掃描圖像。對這些掃描圖像進行分析，可以判彆導緻聚乙烯管道熱鎔接頭冷銲缺陷的銲接工藝問題。利用真密度方法對不同熱鎔接頭進行瞭測試，測試結果驗證瞭微波掃描法對聚乙烯管道熱鎔接頭冷銲缺陷檢測的有效性和可靠性。
이취을희（ PE）관도열용접두위검측대상，사용미파소묘화진밀도측시적방법연구열용접두중적랭한결함。수선대무결함적열용접두진행미파소묘검측，득도적미파소묘도상작위삼고；연후대불동한접조건하득도적함유랭한결함적열용접두진행미파소묘검측，득도구유불동특정적소묘도상。대저사소묘도상진행분석，가이판별도치취을희관도열용접두랭한결함적한접공예문제。이용진밀도방법대불동열용접두진행료측시，측시결과험증료미파소묘법대취을희관도열용접두랭한결함검측적유효성화가고성。
Microwave scanning and true density techniques were employed to investigate the cold weld de-fect existing in the thermo -fusion welds of polyethylene (PE) piping.The thermo-fusion welds without defects were firstly inspected by microwave scanning .The resultant microwave scanning images were taken as the references .Then the thermo -fusion welds containing cold weld defects formed under different welding conditions were inspected , and the corresponding scanning images were recorded .The welding problems that lead to the cold weld defects can be distinguished by analyzing the scanning images .True density tests were conducted for different thermo -fusion welds ,the results of which confirm the effective-ness and reliability of microwave scanning in detecting the cold weld defects in the thermo -fusion welds of PE piping .
