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交焊机的作用是使电弧燃烧稳定,焊接电流和焊接电压稳定,焊接电流能在40~300安范围内调节(指手弧焊机而言);焊接消耗电能少。交焊机还应该重量轻、体积小、成本低;安全可靠、维护容易等。这是因为金属焊件的大小,板的厚薄、金属的性质和工艺条件等的不同,故使用的焊条规格就不同,因而要求焊接电弧的功率、焊接电弧的稳定性、焊接电弧的弹性也不同。由于工业发展、钢种增多、节能呼声更大,因此对交焊机的要求就提高了。
The role of the welding machine is to make the arc stable combustion, welding current and welding voltage stability, the welding current can be adjusted within the range of 40 ~ 300A (finger arc welding machine); welding less power consumption. The welding machine should also be light weight, small size, low cost; safe, reliable, easy to maintain. This is because the size of the metal weldment, the thickness of the plate, the nature of the metal and the process conditions, etc., so the use of different electrode specifications, which requires the power of the welding arc, welding arc stability, arc welding flexibility is also different . Due to industrial development, increased steel, energy-saving calls for more, so the requirements of the welding machine increased.