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一、问题的提出由于CO_2气体保护焊(以下简称CO_2焊)具有很高的生产效率和节能等优点,已得到越来越广泛的应用。但在使用CO_2焊机的单位,普遍存在着送丝软管(主要指推丝式送丝方式)因堵塞不能送丝,而需经常更换新软管的现象。不但影响焊接工作的顺利进行,而且还造成很大的浪费。例如,我厂共有CO_2焊机300余台,每年因送丝软管堵塞不能使用而废
First, the issue put forward Because CO_2 gas shielded welding (hereinafter referred to as CO_2 welding) has a high production efficiency and energy saving, has been more and more widely used. However, in units using CO_2 welder, it is common for the wire feeding hose (mainly referred to as wire feeding type) to replace the new hose due to the blockage of the wire feeding. Not only affect the smooth progress of the welding work, but also caused a great waste. For example, our factory has a total of more than 300 sets of CO_2 welder, which can not be used and can not be used each year due to the blockage of wire feeding hose