脉冲燃烧型焊条立焊接头中的夹渣及控制方法  

Slag inclusion in joints of vertical weld by plus combustion welding rod

作　　者：吴永胜[1] 王建江[1] 辛文彤[1] 曲立峰 陈雪礼[3] 

机构地区：[1]军械工程学院先进材料研究所 [2]重庆军事代表局驻167厂军事代表室 [3]中国人民解放军78666部队

出　　处：《电焊机》2014年第2期67-69,共3页Electric Welding Machine

摘　　要：用脉冲燃烧型焊条对Q235钢进行了手工自蔓延立焊焊接,脉冲燃烧型焊条中三段长度不同的高热焊药形成了三个有效熔池。通过观察接头焊缝合金金相,并结合SEM分析焊缝合金组织和断口组织研究了立焊接头夹渣,提出立焊接头中夹渣的四个来源途径及其相应的控制措施。Q235 steel was welded by manual SHS vertical welding with pulse combustion welding rod,and three mohen pools were formed under the action of three segments of high heat solder with different lengths in pulse combustion welding rod. Slag inclusion in joints of vertical weld was studied through observations of metallographic structure and analysis of weld alloy and fracture by SEM. The results indicate 4 sources of inclusion in joints and corresponding control measures.

关 键 词：手工自蔓延焊接 立焊 夹渣 

分 类 号：TG441.7[金属学及工艺—焊接]