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我厂担负着铁路货车三分之一的制造任务,根据货车的结构特点,CO_2半自动焊在制造中广泛应用,其CO_2焊缝比例占焊缝总长的24％。 1979年货车车间建立了CO_2供气站,CO_2气体沿管路输送至各台焊机,通过操纵焊枪气路上的截止阀来控制CO_2气的流量及通断,从而克服了因CO_2气的分散而造成的管理不便和设备复杂等问题。然而,这种气体控制方法自动化程度较低,气体浪费较大。为此,在1984年4月用ZCT-B系列电磁阀取代了截止阀,使气体输送实现了自动控制,既提高了产品质
Our factory is responsible for one third of the manufacturing task of railway wagons. According to the structural features of the wagons, CO_2 semi-automatic welding is widely used in the manufacture. The proportion of the CO_2 weld accounts for 24% of the total length of the weld. In 1979, a CO_2 gas station was set up in the truck workshop. The CO_2 gas was delivered to each welder along the pipeline. By controlling the stop valve on the torch gas line to control the flow rate of the CO_2 gas and on and off, CO 2 gas was overcome. Caused by the management of inconvenience and complex equipment and other issues. However, this gas control method is less automated and gas is wasted. To this end, in April 1984 with the ZCT-B series solenoid valve to replace the globe valve, gas delivery to achieve automatic control, both to improve the quality of products