送置焊剂片链超窄间隙电弧焊接方法  

The technology of Ultra-narrow gap arc welding with transport and lay the chain of flux plates

作　　者：杨韬君 龚练[1] 朱亮[1] 

机构地区：[1]兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室,甘肃兰州730050

出　　处：《电焊机》2016年第8期33-36,共4页Electric Welding Machine

基　　金：国家自然科学基金资助项目(50775105)

摘　　要：设计并制作送置焊剂片链超窄间隙电弧焊接装置,可实现焊剂片的自动送置,对焊丝与焊剂片的相对位置进行了精确控制,能够在宽度为4 mm、深度为200 mm的I形坡口中进行平稳有效的焊接。焊接工艺实验表明,焊丝与焊剂片之间的距离是影响焊剂片熔化量的关键因素;当焊丝与焊剂片之间的间隙减小时,焊剂片熔化量增大,坡口侧壁燃烧高度增加,所适用的电弧电压降低;当间隙减小到一定值时,坡口根部出现未熔合,甚至发生电弧攀升。The equipment of Ultra-narrow gap arc welding with transport and lay the chain of flux plates had been designed and produced. It could achieve flux plates automatic transporting and laying. The relative position of the welding wire and flux plates could be accurately controlled. It could guarantee welding steadily and efficiently in a width of 4 mm and 200 mm depth of square groove. The welding experiment showed that the distance between the welding wire and flux plates was a key factor of the effect on flux plates＂ melting capacity. With the gap between the welding wire and flux plates reducing, the flux plates＂ melting capacity and the height of groove face melted increased, the suitable arc voltage reduced. When the gap＇s width reduced to a certain figure ,the root of weld appeared lack of fusion, or even the arc climbed up.

关 键 词：超窄间隙焊接装置 焊剂片链 电弧电压 熔化量 

分 类 号：TG444.7[金属学及工艺—焊接]