摘要
分析了不锈钢工业用焊管 GTAW及 PAW自动焊焊缝中心线出现凹陷及凝固裂缝的形态特征、产生原因及其影响因素。指出了在大直径不锈钢管生产的拼板及纵缝焊接时都应特别注意控制焊接参数 。
The shape characteristics,occurrence reason and effect factors of centerline indentation and solidification cracking of GTAW and PAW weld surface at stainless steel welded pipe used for industrial have been analyzed in this paper.It has been suggested that adequate selecting and controlling welding parameters,especially welding speed is very importation in production of large diameter stainless steel welded pipe in order to prevent excessive centerline indentation and solidification cracking of weld surface.
出处
《焊管》
2003年第1期15-24,61,共10页
Welded Pipe and Tube
关键词
凝固裂缝敏感性
不锈钢焊管
焊缝缺陷
中心线凹陷
stainless steel welded pipe weld defect centerline indentation centerline solidification cracking of weld occurrence reason effect factors welding parameters
