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1.绪言 CO_2自动电弧焊机是一种省工省力的焊接机械,近年来有了很大的普及。与手工电弧焊不同,CO_2自动焊机以小直径的消耗性电极(焊丝)代替焊条,连续地自动送进焊丝,由操作者手持焊炬进行焊接。所以,一般又称之为“半自动焊接”。焊接自动化除采用机器人的全自动焊接外,还包括半自动焊接。图1表明,CO_2半自动焊较之手工焊具有效率高、经济性好的特点。CO_2自动电弧焊机采用直径为1.2毫米左右的焊丝,在100～350安的大电流下进行焊接,与手工焊
1. INTRODUCTION CO_2 automatic arc welding machine is a labor saving labor-saving welding machinery, has gained great popularity in recent years. Unlike manual arc welding, CO 2 automatic welding machines use small-diameter consumable electrodes (welding wires) instead of electrodes to continuously feed the welding wire continuously and the operator holding the welding torch for welding. Therefore, the general also known as “semi-automatic welding.” Automatic welding In addition to robot automatic welding, including semi-automatic welding. Figure 1 shows that CO_2 semi-automatic welding is more efficient and economical than manual welding. CO_2 automatic arc welding machine with a diameter of about 1.2 mm wire, 100 ~ 350 amperes of high current welding, and manual welding