SA335-P91钢管CO2气体保护焊焊接工艺的研究  

The Welding Procedure Research of FCAW on SA335-P91 Steel Pipe

作　　者：梅强 王万斌 

机构地区：[1]中国石油天然气管道局 南京扬子石化绍尔管业有限公司

出　　处：《中外医疗》2007年第9期22-24,共3页China & Foreign Medical Treatment

摘　　要：采用钨极惰性气体保护焊(GTAW)打底与金属熔化极气体保护焊(GMAW)填充、盖面的焊接方法对ASME SA335 P91钢管做了焊接工艺评定.并分别对其评定焊缝进行了拉伸、弯曲、冲击和硬度检测等机械性能试验,结果证明工艺评定焊缝的各项力学性能指标都达到了ASMEⅨ的要求,该评定是合格的.这说明将GTAW+GMAW的焊接方法应用在P91钢管的实际生产中是可行的,焊缝的性能是能够得到保证的.The PQR is done on the steel pipe of ASME SA335 P91 using the GTAW + GMAW welding method. Through the tensile,bend,impact and hardness mechanical performance test of welding line,the PQR is acceptable. All these proved that the GTAW + GMAW welding method used on steel pipe of ASME SA335 P91 is feasible and the performance of weld line can be assured.

关 键 词：SA335-P91 GTAW 

分 类 号：TG44[金属学及工艺—焊接]