2.25Cr-1Mo钢焊后产生焊接裂纹的原因及返修措施  

Cause Analyses and Repair Measures about Weld Crack Produced after Welding on 2.25Cr-1Mo Steel

作　　者：张仁刚[1] 张良成[1] 

机构地区：[1]上海锅炉厂有限公司

出　　处：《压力容器》2002年第2期48-51,共4页Pressure Vessel Technology

摘　　要：本文针对 2 2 5Cr- 1Mo钢焊接后产生裂纹的原因进行了分析 ,结果表明产生裂纹的主要原因是氢浓度过高而引起的氢致延迟裂纹 ,并根据实际的产品特点提出了合适的返修措施。The article analysed the cause of weld crack produced after welding on 2 25Cr-1Mo steel. It has been shown that the over-high concentration of hydrogen is the major factor producing hydrogen-induced delay cracking in 2 25Cr-1Mo steel. According to the characteristic of the product, the article also introduced a series of suitable repair measures.

关 键 词：2.25CR-1MO钢 焊接裂纹 返修 高压分离器 

分 类 号：TG457.11[金属学及工艺—焊接] TG441.7