热丝TIG自动焊在核电站钢衬里施工中的研究与应用  

Research and Application of Hot Wire TIG Automatic Welding in Steel Lining Construction of Nuclear Power Plant

作　　者：陈旭芳 王康 王雄 CHEN Xufang;WANG Kang;WANG Xiong(China Construction Second Engineering Bureau Co.,Ltd.,Beijing 100160,China)

机构地区：[1]中国建筑第二工程局有限公司,北京100160

出　　处：《施工技术（中英文）》2022年第23期57-60,共4页Construction Technology

基　　金：中国建筑股份有限公司资助项目(CSCEC-2020-Z-53);中国建筑第二工程局有限公司资助项目(2019ZX170001)。

摘　　要：国内某第三代核电堆型安全壳钢衬里采用热丝TIG自动焊工艺,通过无损检测、拉伸试验、冲击试验、金相试验及硬度试验等方法,验证焊材选型、焊接坡口设计及焊接工艺等符合热丝TIG自动焊的要求,且接头性能满足安全壳钢衬里设计标准要求,尤其是焊接接头在0℃下的低温冲击性能优异,冲击韧性裕量大,可安全应用于安全壳钢衬里,焊接质量满足核电站设计标准要求。The hot wire TIG automatic welding process was used to weld the containment steel lining of the third-generation nuclear power reactor in China, the non-destructive testing, tensile test, impact test, metallographic test and hardness test were adopted to check that the welding material selection, welding groove design and welding parameters met the requirements of hot wire TIG automatic welding. It shows that the performance of the welded joint by hot wire TIG automatic welding meets the requirements of the containment steel lining design standard, especially the low temperature impact performance of the welded joint is excellent at 0℃, and the impact toughness margin is large, it can be safely applied to steel lining, and the welding quality meets the design standard of nuclear power plant.

关 键 词：核电站 安全壳 钢衬里 热丝TIG焊 接头性能 

分 类 号：TM623[电气工程—电力系统及自动化]