对钢质管道对口错边量规定的认识
Cognition on Prescribed Misalignment Value of Steel Pipe Edges
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- DOI:
- 作者:
- 李伟, 郑伟
LI Wei
- 作者单位:
- 江苏石油勘探局油田建设处,江苏江都,225261
Construction Division of Jiangshu Petroleum Bureau, Jiangdu 225261, China
- 关键词:
- 管道焊接;对口错边量;标准讨论
pipeline welding;misalignment value of pipe edges;standard discussion
- 摘要:
- 钢质管道错边未焊透已经作为焊接缺陷列入X射线检测焊缝质量等级评定。现行的-些标准规范对于钢质管道错边量的规定过松,易导致焊缝合格率下降,增加返修率。在修订标准规范时,笔者认为应以管道壁厚作为规定管道对口错边量的主要依据。
Incomplete fusionweld quality grade assessment byof misaligned steel pipe edges, as a welding defect, hasmeansof X-ray detection. Insomebeen listed into thecodes, the prescrip-dons on misalignment valuesare loose, so that it leads to the drop ofactive standards andwelding qualified rateand the increase ofrepairtakenrate. The author considers that in the revision of standards and codes, the pipe wall thickness should beas the main factor of prescribing misalignment values.2009,5(5): 75-77 收稿日期：2008-11-7分类号：U175作者简介：李伟(1980-),男，江苏唯宁人，助理工程师，2004年毕业于西安石油大学材料成型及控制工程专业，现从事油气管道工程的施工管理工作。