摘要
针对核岛主设备稳压器加热器焊接接头特殊的接头形式和焊接要求,采用全自动氩+氦弧焊进行超低碳奥氏体不锈钢薄壁小管对接焊接工艺。为确保焊缝质量和熔透性,针对特殊的焊缝结构形式,进行了反复的工艺试验。结果表明:接头结构、焊接材料、焊接设备、保护气体、焊接程序、装配质量和钨极质量都直接影响最后的焊接质量和焊缝反面熔透性。摸索出了一套完整的焊接工艺,顺利完成了加热器焊缝的焊接。
In this paper,use automatic welding of super 10w carbon austenitic stainless steel thin wall tube with Ar＋He shield gas in case of especial welds type of heater for pressurizer in nuclear power and welding requirements ,for satifying welding quahty and back penetrate,procedure test and test result show that joint type,welding material,welding equipment,protective gas,welding program, assemble quality and tungsten quality shall affect final welding quality and back penetrate.After tackling key problem,we finish welding of the key nuclear products without foreign technical support.
出处
《电焊机》
北大核心
2011年第1期46-50,57,共6页
Electric Welding Machine
关键词
核电
薄壁小管
全自动焊
熔透性
两路气
nuclear power
thin wall tube
automatic welding
back penetrate
two type shield gas
