焊管2011，Vol.34Issue(6)：39-42,4.
X65级薄壁直缝埋弧焊管焊接工艺试验研究
Research on Welding Process of X65 SAWL Pipe with Thin Wall
张世涛 1陈勇 1张颖娜2
作者信息
- 1. 中油宝世顺(秦皇岛)钢管有限公司,河北秦皇岛066206
- 2. 宝鸡石油钢管有限责任公司,陕西宝鸡721008
- 折叠
摘要
Abstract
Two different kinds of welding process parameters, that is inside and outside double wires welding and three wires welding, were tested on X65 grade JCOE pipe with 9.5 mm wall thickness, and the welding joints properties of both welding processes were analyzed. The results showed that both welding schemes can meet the technical requirements, however, all indexes of pipes manufactured by double wires welding process are better.Adopting double wires welding process to carry out mass production, the tensile property of weld can meet standard requirements, and all fracture locations are on the base metal. The hardness of base metal, weld and heat affected zone are all lower than the maximum allowable hardness 265HV10 specified in technical requirement. The weld structure is acicular ferrite, so that the welding joints possess good toughness property.关键词
X65钢/薄壁焊管/双丝焊/直缝埋弧焊Key words
X65 steel /welded pipe with thin wall /double wires welding /longitudinal submerged-arc welding分类
矿业与冶金引用本文复制引用
张世涛,陈勇,张颖娜..X65级薄壁直缝埋弧焊管焊接工艺试验研究[J].焊管,2011,34(6):39-42,4.
