Advantage
Welding machine uses electric energy, converts electric energy into heat energy instantly, electricity is very common, welding machine is suitable for working in a dry environment, do not need too many requirements, because of small size, simple operation, easy to use, fast speed, welding seam strong and other advantages are widely used in various fields, especially for the high strength of the parts are particularly practical, The same metal material can be instantly connected (it can also be connected to dissimilar metals, but the welding method is different), and the weld after heat treatment, the same strength as the base material, and the seal is very good, which solves the problem of sealing and strength for the manufacture of storage gas and liquid containers.
Shortcoming
Welding machine in the use of the process will produce a certain magnetic field around the welding machine, arc burning will produce radiation around, there are infrared, ultraviolet and other light in the arc, as well as metal vapor and smoke and other harmful substances, so the operation must do enough protective measures. Welding is not suitable for the welding of high carbon steel, due to the welding weld metal crystallization and segregation and oxidation process, for high carbon steel welding performance is poor, easy to crack after welding, resulting in hot cracks and cold cracks. Low carbon steel has good welding performance, but the process should also be properly operated, rust cleaning is more cumbersome, sometimes the weld will appear slag cracks, pores and other defects, but proper operation will reduce the production of defects.
