金属材料焊接程序的规范和鉴定.焊接程序试验.第8部分:管对管板接头焊接

[中文适用范围]： ISO 15614 的本部分规定了通过手工、部分机械化、全机械化或自动工艺对金属材料管与管板接头进行电弧焊的焊接工艺资格测试的要求。 ISO 15614 的这一部分是一系列标准的一部分。 该系列的详细信息在 ISO 15607 附录 A 中给出。 管到管板接头测试的资格可用于所有接头，即使它们是满载的或仅按照应用标准的要求进行密封焊接。 ISO 15614的本部分适用于管与管板接头的金属材料熔焊，管与管板之间在管板厚度的一定长度上保留间隙。 ISO 15614 的本部分不适用于带有焊接管（外/内孔焊接）的锻造端部连接的管板。 对于承载机械膨胀的管与管板接头的焊接，应规定焊接工艺试验。 对于其他应用和/或要求，如果规范要求，可以使用 ISO 15614 的这一部分。 焊接工艺试验中应考虑补焊。 [外文原描述]： ISO 15614-8:2016 specifies requirements for the qualification testing of welding procedures for the arc welding of tube to tube-plate joints in metallic materials by manual, partly mechanized, fully mechanized, or automatic processes. ISO 15614-8:2016 is a part of a series of standards. Details of this series are given in ISO 15607, Annex A. Qualification by tube to tube-plate joint tests can be used for all joints even if they are fully loaded or only seal welded as required in application standards. ISO 15614-8:2016 applies to fusion welding of metallic materials for tube to tube-plate joints with a remaining gap between the tube and the tube-plate for some length of the tube-plate thickness. This part of ISO 15614 does not apply to tube-sheets with forged end connections with welded tubes (external/internal bore welds). For welding of tube to tube-plate joints with mechanical expansion which is load bearing, welding procedure test is to be defined. For other applications and/or requirements, this part of ISO 15614 can be used if required by the specification. Repair welding is to be considered in the welding procedure test.