摘要
确定了ZG15Cr1Mo1V铸件的开裂位置为联合阀体R角位置。对缺陷周围的母材成分、组织和性能情况进行了检测,该铸件具备焊接修复条件。对ZG15Cr1Mo1V钢的焊接性及焊接修复要点进行了分析,采用同材质热补焊的工艺方法及整体热处理方式,成功对某电厂中压再热联合调阀ZG15Cr1Mo1V铸件进行了焊接修复,已安全稳定运行4年。
The cracking position of ZG15Cr1Mo1V casting was determined as angle R position of the combined valve body.The composition,microstructure and mechanical properties of the parent material around the defect were tested,and the casting was qualified for repair welding.The weldability and key points of repair welding of ZG15Cr1Mo1V steel were analyzed.The repair welding of ZG15Cr1Mo1V casting of medium pressure reheat combined control valve of a power plant was successfully carried out with the same material hot repair welding and the integral heat treatment.It has been running safely and stably for 4 years.
作者
马志宝
李凤强
陈鑫
高大伟
刘彦如
郭德瑞
Ma Zhibao;Li Fengqiang;Chen Xin;Gao Dawei;Liu Yanru;Guo Derui(Datang North China Electric Power Experimental Research Institute,Beijing 100040;Datang International Power Generation Co.,Ltd.,Beijing Gaojing Thermal Power Plant,Beijing 100041,China)
出处
《焊接》
北大核心
2021年第7期53-56,64,共5页
Welding & Joining
作者简介
第一作者:马志宝,1984年出生,硕士,高级工程师,主要从事电站金属材料失效分析、焊接修复等方面的工作,已发表论文10余篇。
