重庆菜园坝长江大桥焊接工艺评定试验  

Welding procedure qualification tests of Chongqing Caiyuanba Yangtze river bridge

作　　者：柴亮 徐向军 

机构地区：[1]中铁山桥集团有限公司,河北秦皇岛066205

出　　处：《电焊机》2011年第8期34-40,共7页Electric Welding Machine

摘　　要：重庆菜园坝长江大桥钢板主要材质为Q345qD钢、Q345qE钢和Q235B钢,焊缝种类多,焊接位置全,施焊难度大。主要介绍了该桥的焊接工艺评定试验,通过焊接工艺评定试验确定了接头坡口形式、焊接方法、焊接材料和工艺参数,焊接工艺评定试验结果完全符合标准规定,并且满足技术要求,保证了菜园坝长江大桥的焊接质量。The main steel materials of Chongqing Caiyuanba Yangtze River Bridge is Q345qD,Q345qE and Q235B,the steel truss consist of orthotropic deck and whole node members.This bridge contains all kinds of welds.The welding procedure qualification tests（WPQT） are introduced in this paper.And the relevant groove sketches,welding process,welding consumables and parameters are made accordingly.The results fulfill the requirements,and it guarantees the quality of the bridge

关 键 词：菜园坝长江大桥 焊接工艺评定试验 

分 类 号：TG457[金属学及工艺—焊接]