电焊机2017，Vol.47Issue(5)：1-7,7.DOI:10.7512/j.issn.1001-2303.2017.05.01
无镀铜焊丝熔滴过渡形态与工艺质量的关系
Relationships between droplet transfer form and usability quality of non-copper-coated wire
孙咸1
作者信息
- 1. 太原理工大学焊接材料研究所,山西太原030024
- 折叠
摘要
Abstract
In this paper,the relationships between the form of droplet transfer and the usability quality of copper-coated and noncopper-coated wire were reviewed.The results show that there are three kinds of droplet transfer form when using two kinds of GMAW welding wire:large droplet transfer,spray transfer and short circuit transfer;the transition current of the droplet from the droplet to the spray is present using argon-rich mixed gas.The arc of non-copper-coated wire is improved and the droplet is refined,and the transition current is lower than that of the copper-coated wire;the correct matching of welding current and arc voltage is an important condition to obtain satisfactory transfer form.In addition to the composition of welding wire and coating,and base metal weldability,the usability quality of welding wire is mainly controlled by welding process conditions.By means of the matching changes of process parameters,the relationships between the droplet transfer form and the usability quality of welding wire are established,and the internal connection is mainly the change of the droplet size and the transition current.关键词
熔滴过渡形态/焊丝工艺质量/无镀铜焊丝Key words
droplet transfer form/usability quality of welding wire/non-copper-coated wire分类
矿业与冶金引用本文复制引用
孙咸..无镀铜焊丝熔滴过渡形态与工艺质量的关系[J].电焊机,2017,47(5):1-7,7.
