最近几年焊接技术高速度地发展着,由于新方法的采用和原有方法的改进,对完成某一任务的焊接设备的选择也就愈来愈广泛.设备的选择必须和工艺过程联系起来.本文只集中讨论设备方面,并以在各工艺过程中普遍性较大的为主. 手工电弧焊由于灵活性大、投资和使用费低,这种焊接方法应用最广.其中又以交流设备应用 In recent years, welding technology has been developed at a high speed. Due to the adoption of new methods and the improvement of the original methods, the selection of welding equipment for accomplishing a certain task becomes more and more widespread. The selection of equipment has to be linked with the process. This article focuses only on the equipment, and in the process of the larger universality of the main hand arc welding due to flexibility, investment and low usage fees, this welding method is the most widely used. Among them the exchange of equipment applications