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随着我国石油工业的飞速发展,石油和天然气的管道输送量迅速增长,为适应敷设大口经管道的需要,提高焊接质量和焊接速度,改善工人的劳动条件,减轻劳动强度,我们在学习兄弟单位CO_2气体保护焊管机研究成果的基础上,一九七三年我们试制了一台与之相同的焊机,并在一九七三年三季度在某φ529输气管道上焊接了六十五道口,质量达到了标准要求。但是这台焊机经过现场使用,也暴露出一
With the rapid development of China’s oil industry, the pipeline transportation volume of oil and natural gas is rapidly increasing. In order to meet the needs of laying large pipes and pipes, improve the welding quality and welding speed, improve the working conditions of workers and reduce the labor intensity, Based on the research results of CO 2 gas shielded welding machine, we produced a similar welder in 1973 and welded 65 pipes on a φ529 gas pipeline in the third quarter of 1973 Mouth, the quality has reached the standard requirements. However, this machine was used on site and also revealed one