焊管2011，Vol.34Issue(5)：52-55,4.
长输管道混合气体保护自动焊的工艺研究
Study on Mix-gas Auto-welding Process of Long Transportion Pipeline
刘长伟1
作者信息
- 1. 中石油管道局华油工建公司第二工程处,河北,任丘,062552
- 折叠
摘要
Abstract
The influence of mix-gas(Ar+CO2) proportion and the behaviors of droplet transition in mix-gas auto-welding process of long transportion pipeline to welding process were studied by the PAW-2000 welding machine. With the increaseof C02 proportion,the fusion depth in horizontal position, Vertical position, and position also increases. When the proportion of field gas is similar,the fusion depth Hvertical＞Hhorizontal＞Hoverhead. The effect of mix-gas (Ar+CO2) proportion on weld seam quality,welding process parameter and wire melting speed in pipeline auto-welding is analysised. The research results indicated that the mix-gas of pipeline automatic welding is the best for the argon-rich gas, which accounts for 80％～85％ Ar.关键词
PAW-2000焊机/Ar+CO2混合气体/管道自动焊/熔滴过渡Key words
PAW-2000 welding machine/ Ar+CO2 mix-gas/ pipeline auto-welding/ droplet transition分类
能源科技引用本文复制引用
刘长伟..长输管道混合气体保护自动焊的工艺研究[J].焊管,2011,34(5):52-55,4.
