Basic working principle
The basic working principle of Welding Wire is commonly used by 220V or 380V voltage industrial power through the welding in the regulator reduces the voltage to enhance the current use of electricity generated tremendous heat to melt steel, welding rod into the steel of the the integration between the higher, and, welding of the outer skin of the drugs played a very big role, do not believe you put the solder powder can not knock a look:). Of course, this interpretation is popular.

Types of welding
More types of welding, the most commonly used are the following: arc welding, resistance welding, high-energy beam welding, brazing, electroslag welding, high frequency welding, gas welding, pressure welding, explosion welding, friction Cast Iron Electrode, ultrasonic welding, diffusion welding, etc.