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随着焊接技术的迅速发展和焊接结构的大型化,特别是熔化极气保护半自动焊在航空工业应用中的日益扩大,现有的齿轮传动滚轮送丝机已不能满足要求。这种送丝机机构笨重,送丝速度不稳且送丝距离短。因此,气保护半自动焊技术的应用受到一定的局限。如我厂生产的飞机天窗盖骨架,一些高大的地面设备以及民用售货车等大型板件的气保护半自动焊,
With the rapid development of welding technology and large-scale welding structure, especially the semi-automatic welding of molten polar gas protection in the aviation industry has been expanding, the existing gear-driven roller feeder can not meet the requirements. This wire feeder mechanism bulky, wire feeding instability and short wire feed distance. Therefore, the application of gas protection semi-automatic welding technology is subject to certain limitations. If I plant production skylight cover skeleton, some tall ground equipment and civilian sales of large-scale plate and other parts of the gas-protection semi-automatic welding,