摘要
研究了碱性焊条工艺性的影响因素，探讨了焊缝金属的含氢量、焊条药皮的吸湿性、焊缝金属的强韧化特性等。在此基础上研制了高韧性、超低氢及操作工艺性优良的、适用于屈服极限为４００～４５０Ｎ／ｍｍ２级的低合金钢用Ｊ５５７ＧＲ高韧性焊条。
The influence factors such as the hydrogen content in weld metal,the hydroscopicity in electrode coating and the toughness of weld metal of basic electrodes are studied. A special electrode J557GR with high toughness and ultralow diffusible hydrogen in weld metal was developed.It has proved to have excellent adaptability in welding low alloy steel having a yielding strength of 400～500 N/mm 2.
出处
《郑州工业大学学报》
1998年第3期54-57,共4页
Journal of Zhengzhou University of Technology
基金
河南省科技攻关资助项目
关键词
高韧性焊条
超低氢
工艺性
焊条
high-toughness electrode
ultralow diffusible hydrogen
usability
