摘要
研究了焊接电流对ＳＴ４４钢压平缝焊接头组织和强度的影响，发现未熔合缺陷是成接头强度低的主要原因，提高焊接电流可以减小未熔合缺陷的尺寸，提高接头的强度。
The influence of welding current on the structure and strength of the welded joint ofmash-seam-welding in ST44 has been studied. It was found that the welding-off-defect is the main reasonfor low strength of welding joint, and the size Of the welding-off-defect will be decreased with the increaseof welding currentat at the infusion-zone and the strength of joint improved.
出处
《宝钢技术》
CAS
2000年第1期40-42,共3页
Baosteel Technology
关键词
钢
压平缝焊
焊接电流
焊接接头
强度
焊接
ST44 steel Mash-seam-welding Welding current Welding joint Strength
