大直径厚壁直缝埋弧焊管RBE生产工艺及关键技术  

RBE Production Process and Key Technology of Large Diameter Thick Wall SAWL Pipe

作　　者：温明军[1] 王芳[1] WEN Mingjun;WANG Fang(Taiyuan Heavy Industry Co.,Ltd.,Taiyuan 030024,China)

机构地区：[1]太原重工股份有限公司,太原030024

出　　处：《焊管》2021年第9期38-41,共4页Welded Pipe and Tube

摘　　要：为了降低直缝埋弧焊管生产线的投资成本,提高生产效率,开发了大直径厚壁直缝埋弧焊管RBE生产工艺。在三辊卷板成型中,针对不同的焊管规格,提出了反弯法上辊挠度控制成型原理和多点支撑法上辊挠度控制原理;在后弯辊压工序上,创新提出了小变形多道次直边弯曲方法,成型精度高、适用范围广。对开发的RBE生产工艺和设备进行实际生产应用,产品各项指标优于相关标准要求,为我国直缝埋弧焊管的生产提供了一种新的选择。In order to reduce the investment cost of submerged arc welded longitudinal pipe production line and improve production efficiency,RBE production process of large diameter thick wall submerged arc welded longitudinal pipe was developed.In the three roll plate forming,the upper roll deflection control forming principle of reversed bending method and the upper roll deflection control principle of multi-point support method are proposed according to different welded pipe specifications.In the back bending rolling process,a small deformation and multi pass straight edge bending method is innovatively proposed,which has high forming accuracy and wide application range.The developed RBE production process and equipment are applied in practical production,and the product indexes are better than the requirements of relevant standards,which provides a new choice for the production of longitudinal submerged arc welded pipe in China.

关 键 词：直缝埋弧焊管 RBE生产工艺 三辊卷板成型 后弯辊压成型 

分 类 号：TG445[金属学及工艺—焊接]