小角度焊缝在海洋工程中的应用及要点控制

Application and key points control of small angle welds in ocean engineering

小角度焊缝在海洋工程焊接中广泛存在,尤其常见于管材结构的TKY节点,因其特殊性和现场执行过程中存在差异,对于任何环节和细节的疏忽或不重视都有可能造成严重的事故隐患,如何正确严格执行小角度焊接工艺也势在必行。文中简介了小角度焊缝的应用范围,从焊接工艺评定、焊工资质和初始坡口宽度及完工焊缝3个方面探讨了执行规范时的关注点。随后介绍了现场施工和检验时的关注重点。该文内容对于相关工作的开展有借鉴意义。

Small angle welds are widely used in ocean engineering welding, especially in TKY joints of pipe structure. Due to its particularity and differences in field execution, negligence or neglect of any link and details may cause serious accident potential, so how to correctly and strictly implement the small angle welding process is also imperative. Application range of small angle weld was introduced in this paper. Focus on implementation of the specification was discussed from three aspects of welding procedure qualification, welder qualification and initial groove width and finished weld. Then, key points of field construction and inspection were introduced. The content of this paper supplied a reference for the development of related work.