摘要
介绍了巴基斯坦恰希玛核电工程(C-2)安全壳钢衬里筒体的基本状况,分析了埋弧自动焊产生终端裂纹的原因。防止埋弧自动焊产生终端裂纹,匹配主要工艺参数是消除焊缝宽度窄而余高大的基本控制方法,正确选择焊剂的颗粒度并合理回收使用焊剂是减小气孔及焊缝表面压气/凹坑缺陷的重要途径,通过二次切割可减小翘曲等波浪变形现象。
The paper introduces the basic constitution of containment steel liner to Pakistan Chashma nuclear power plant (C-2) project, and analyses the origin for the endless crack in the welding joints of SAW. To prevent occurring of endless cracks in SAW, well match of the main welding parameters is the base way to eliminate the weld of big reinforcement and small width. Correct chose and reuse of granular of welding flux is important for reducing of the blowhole and pit on weld surface. Secondary cutting can mitigate the deformation of the whole plate after welding.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2008年第1期25-29,共5页
Nuclear Power Engineering
关键词
恰希玛核电工程
安全壳
简体钢衬里
埋弧自动焊
质量控制
Chashma nuclear power plant project, Containment, Steel liner, Automatic submerged-arc welding, Quality control