The advantages of using electric energy electric welding machine, electric energy instantly converted into heat energy, electric welding machine is very common, for in the dry condition of electric welding machine welding machine, do not need too much, because of small size, simple operation, convenient use, fast speed, strong welding etc. widely used in various fields, special requirements for high strength parts special utility, you can instantly be the same metal material (can also be dissimilar materials, just different welding methods) permanent connection, weld after heat treatment, and the parent material of equal strength, good sealing, the manufacture of gas and liquid to the storage container solves the sealing and the problem of strength