内外焊同工位在18米直缝埋弧焊钢管生产线的应用

打开文本图片集

中图分类号：TG456.7；TP23

Application of internal and external welding in 18 m LSAW pipe production line

LIU Ming，CHANG Xiangyang，RU Xiang，ZHANG Ting，YAN Hui，WANG Hongtao（Zhongyou Baoshishun （Qinhuangdao） Pipe Co.，Ltd.，Qinhuangdao O662O6，Hebei，China）

Abstract： Inorder to solve the problems of equipment layout caused by the short length and long design length of JCO longitudinal submerged arc welding（LSAW）stel pipe production line，the internal and external multiwire submerged arc welding processwas adopted，through the reasonable arrangement of the head of the internal and external welding machine and the position of the welding equipment，the problem that the conventional internal and external welding equipment of the longitudinal submerged arc welding pipe occupies a long space is solved，the application of internal and external welding in the production line of LSAW pipe is realized.The welding process test results show that the appearance，mechanical properties and micro-hardness of the weld meetthe requirements of relevant standards.The application of internal and external welding process of LSAW pipe shows that the internal and external welding equipment arangement of LSAW pipe production line increases new selection，and reduces the cost of plant and equipment investment.

Key words： LSAW pipe; SAW；same work station;welding process

0 前言

河北某公司利用原有厂房和螺旋焊管生产线设备改造建设一条新能源管材制造生产线，直缝钢管部分管长最长达到 18.3m ，管径最大达到 1422mm 。（剩余5820字）