07MnNiMoV DR液化石油气储罐用钢焊接工艺及焊后热处理研究  

Sdudy on Welding Process and Post-weld Heat Treatment for LPG Tank 07MnNiMoV DR Steel

作　　者：牛全峰[1] 于恩[2] 牟应华[1] 林奎[1] 

机构地区：[1]恩施职业技术学院电气与机械工程系,湖北恩施445000 [2]湖北民族学院理学院,湖北恩施445000

出　　处：《热加工工艺》2010年第15期161-163,共3页Hot Working Technology

摘　　要：对建造液化石油气低温储罐所用07MnNiMoV DR钢的焊接工艺及焊后热处理等进行了实验研究。结果表明,采用30kJ/cm线能量焊接,焊后经580℃消除应力处理,其焊接接头的力学性能最好,满足散装运输液化气体船舶制造的焊接技术条件要求。The welding process and post-weld heat treatment for 07MnNiMoV DR steel were studied.The results show that after welding with 30 kJ/cm heat input and 580 ℃ post-weld heat treatment,the best mechanical properties of the welded joints meet the requirements of bulk transportation of LPG in the welding of shipbuilding.

关 键 词：LPG储罐 埋弧焊 线能量 热处理 

分 类 号：TG457.5[金属学及工艺—焊接]