1. The advantages of electric welding machine: electric welding machine uses electric energy, converts electric energy into heat energy instantly, electricity is very common, electric welding machine is suitable for working in a dry environment, does not need too many requirements, because of its small size, simple operation, convenient use, speed Faster, strong weld after welding, etc After heat treatment, the welding seam has the same strength as the base metal, and the sealing is very good, which solves the problems of sealing and strength for the manufacture of storage gas and liquid containers.
2. Disadvantages of electric welding machine: During the use of electric welding machine, a certain magnetic field will be generated around the welding machine. When the arc burns, it will generate radiation to the surrounding. There are infrared rays, ultraviolet rays and other light species in the arc, as well as harmful metal vapor and smoke. Substances, so adequate protective measures must be taken during operation. Welding is not suitable for the welding of high carbon steel. Due to the crystallization, segregation and oxidation of the weld metal, the welding performance of high carbon steel is poor, and it is easy to crack after welding, resulting in hot and cold cracks. Low carbon steel has good welding performance, but it must be handled properly in the process, and the rust removal and cleaning are more cumbersome. Sometimes the welds will have defects such as slag inclusion, cracks, stomata, etc., but proper operation will reduce the occurrence of defects.