文档介绍：特厚板结构件的CO2焊接工艺研究
摘要
本设计题目为特厚板结构件焊接设计,体现了特厚板结构件焊接的设计要求、内容及方向,有一定的设计意义。通过对特厚板结构件焊接设计,进一步加强了设计者特厚板结构件焊接基础知识,为设计更复杂的特厚板结构件焊接做好了铺垫和吸取了更深刻的经验。
针对特厚板焊接结构件焊接难度大的情况,通过对其难点的分析、焊接方法的研究,发现特厚板焊接可以采用的焊接方法有很多:有CO2气保焊、电渣焊、窄间隙焊、还有埋弧自动焊等等
CO2焊由于熔池小、热影响区窄,因此焊后工件变形小,焊缝质量好,并且焊道整齐,焊道接头少。焊丝熔化速度快,生产效率高。并且抗氢气孔能力强,对油锈敏感低,操作性能非常好。
最后选择了合适的CO2焊接工方案,加上严格的技术管理,成功地保证了特厚板焊接结构件焊接质量,并取得了显著的经济效益。
关键词:厚板;结构件;CO2焊;焊接工艺;焊接顺序;变形;热处理。
Special Plate Welding Structure Of The
Carbon Dioxide Process
Abstract
The design of the subject matter for the special plate welding structure design, reflects the special plate welding structure design, content and direction of the design of a certain significance. Through the special plate welding structure design, designers have further strengthened the special plate welding
The use of special plate design structure of the basic knowledge of welding, the first analysis of the special plate structure of position and performance requirements for the type of welding ready.
CO2 welding pool as a result of small, narrow heat-affected zone, so the workpiece after the welding deformation of small, good quality welds, and weld tidy little weld joints. Wire melting speed, high production efficiency. Hole and a strong ability of anti-hydrogen, low sensitivity to oil rust, very good performance
Decided to choose the appropriate CO2welder program, coupled with strict technology management, to ensure the ess of the special plate welding structural welding quality, and have achieved significant economic benefits.
Keywords: plate; structure; CO2 welding; welding technology; welding sequence; deformation; heat treatment.
目录
1
2
2
Q235的焊接 3
Q235的焊接工艺 8
12
12
15
18
CO2焊接介绍 18
CO2气体保护焊工艺 21
CO2保护焊的发展 25
27
: 27
300mm的结构件CO2焊接试验及焊接工艺卡 29
: 31
33
致谢 35
参考文献 35
接头简图:
焊接顺序
焊接工艺卡编号
01
接头焊接
1.