摘要
通过焊接工艺评定试验确定了12Cr1MoV材质小口径管在不预热、不进行焊后热处理条件下的焊接工艺，用于锅炉改造工程中过热器的700余道接口的现场焊接，收到保证质量、降低成本和缩短施工工期的效果。
Welding process of non-preheating and non-PWHT on small diameter pipe of 12Cr1MoV steel is determined in accordance with welding process evaluation. It was used in in-situ welding of 700 joints of over heater for a boiler refit project. And the effect of quality guarantee, cost reduction and short work period were gained.
出处
《石油工程建设》
1997年第5期18-20,共3页
Petroleum Engineering Construction
关键词
焊接钢管
12CrMoV钢
小口径钢管
Steel tube, Electric are welding, Technology, Evaluation, Testing
