焊接电流对ST44钢压平缝焊接头组织和强度的影响  

Influence of Welding Current on the Structure and Strength of Mash-seam-welding Joint in ST44

作　　者：高甲生[1] 张庆安[1] 何宜柱[1] 陈惠芬[1] 黄自友[2] 黄飞[2] 

机构地区：[1]华东冶金学院 [2]宝钢冷轧部

出　　处：《宝钢技术》2000年第1期40-42,共3页Baosteel Technology

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.

关 键 词：钢 压平缝焊 焊接电流 焊接接头 强度 焊接 

分 类 号：TG457.11[金属学及工艺—焊接]