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["Kühlflüssigkeit-SSR-Leitung焊接的问题"

2019-03-17View Original

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["DN115的制冷液不锈钢管线,要求进行无损检测,之前用的氩弧打底电焊盖面,但是探伤好多焊口没通过,后来使用了纯氩弧顺利过关。但是最近监理提出不可以全部使用氩弧,必须是氩弧打底电焊盖面,请问各位大佬有没有相关的规范标准可以参考到底是我们的焊工技术有问题还是监理的意见也有误?谢谢。"
Reply #22019-03-17
"管道焊接方法的选择一般设计文件里会有规定因为各类管道的洁净度要求、焊接接头强度要求各不相同所以一般的规范里不会特别说明。DN115"的管道应该采用氩电联焊(特别是压力管道会有此要求)主要是因为全氩弧焊接强度没有氩电联焊高;另外焊工氩电联焊拍片通过率低如果焊工水平没有问题那肯定是焊材或者焊接参数有问题另外焊工对口时坡口间隙、管口的水平度对焊接参数也有影响。"
Reply #32019-03-17
"最让人奇怪的是设计说明里没有提到问了设计院回复曰由施工方决定"
Reply #42019-03-18
"根据施工方焊接工程师编制的焊接工艺卡进行并非焊工想怎么焊就可以怎么焊的又不是监理说不能全部使用氩弧就不能。拿出焊接工艺卡该怎么焊就怎么焊监理也不能说啥监理不查处?就是垃圾监理"

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