（4）手工钨极氩弧焊（GTAW/WS）： 板-板焊接：如1-4G-6-FefS-02/11/13； 管-管焊接：如1G\2G\5G\6G-5/57-02/11/13； 管-板焊接：水平转动焊，如2FRG-12/57-...
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关键词：纯镍；手工钨极氩弧焊；埋弧焊；经济效益对比 [gap=664]Key words：pure nickel；manual argon tungsten arc welding；submerged—arc welding；economic benefits
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手工钨极氩弧焊接 Tungsten-arc Inert-Gas Welding
介绍采用药芯焊丝手工钨极氩弧焊焊接奥氏体不锈钢管道所进行的焊接试验及工艺评定。
The welding experiment and procedure qualification for manual TIG welding of stainless steel tubes with flux cored electrode is presented in this paper.
对补焊工艺方法的选择作了比较，具体阐明了采用手工钨极氩弧焊的补焊工艺方法，实践证明，效果良好。
The selections of repair welding technology are compared, and the repair welding technology using handwork gas tungsten arc welding is detailed. The result with good effect is got.
修理前，围绕兼顾解决焊接性、应力和变形问题，结合实际施工条件制定了以手工钨极氩弧焊、镍基焊丝、焊前低温预热、焊后锤击焊缝为要素的冷堆焊工艺。
The method of surfacing welding sealing strip was adopted to repair the deformation of the flange joint surface of the high and intermediate pressure outer casing .
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