首台-100℃用08Ni3DR钢制3000m^3乙烷球罐的制造焊接工艺  

Welding procedure for fabrication of 3000m^3 ethane steel spherical tank with 08Ni3DR

作　　者：徐亮[1] 章小浒[1] 黄金国[1] 房务农[1] 王清栋[1] 刘文亮 

机构地区：[1]合肥通用机械研究院国家压力容器与管道安全工程技术中心,安徽合肥230031 [2]大连金鼎石油化工机器有限公司,辽宁大连116103

出　　处：《电焊机》2017年第5期137-143,共7页Electric Welding Machine

摘　　要：采用国产-100℃的08Ni3DR钢用于3 000m^3乙烷球罐的制造。针对低温容器钢的特点,制定出合理的焊接工艺,满足了乙烷球罐焊接接头的低温冲击韧性要求。08Ni3DR钢焊接工艺的一个重点是保证焊接接头的低温冲击韧性,尽量采用小电流、窄焊道快速焊接,同时严格控制较低的焊接线能量,合理控制层间温度,确保焊缝金属晶粒均匀,同时采取焊前预热、焊后及时后热消氢处理等措施,以保证焊接接头的低温韧性。The domestic -100 steel 08Ni3DR is used for the manufacture of 3 000m^3 ethane spherical tank. According to the characteristics of cryogenic vessel steel,a reasonable welding procedure is worked out to meet the requirement of low temperature impact toughness of the ethane spherical tank welding joint. A key to the welding process of 08Ni3DR steel is to ensure the low temperature impact toughness of welded joints,try to use small current,fast bead welding,and strictly control the lower wehting line energy,reasonable control interpass temperature,weld metal to ensure the uniformity of the grain,and to take timely after preheating before welding,heat elimination hydrogen treatment measures to ensure the toughness of welding joints.

关 键 词：08Ni3DR 低温球罐 焊接工艺 低温韧性 

分 类 号：TG457.5[金属学及工艺—焊接]