1. High-frequency resistance welding
By using the skin effect and the proximity effect of the high-frequency current, the edge of the steel strip strip is rapidly heated to a molten state, and the molten metal is extruded under the action of the squeezing roller to realize the welding.
2. Submerged arc welding
Welding arc a method of performing arc welding under the coverage of a flux. Welded metal pool in the solder layer under the protection of solidification into the weld, flux melting layer cooling for the slag shell covering the outer surface of the weld.
3. Tungsten inert gas shielded welding (TIG)
The use of pure tungsten or activated tungsten (thorium tungsten, cerium tungsten, etc.) as the electrode inert gas shielded welding into tungsten inert gas shielded welding, the English referred to as TIG welding. It is under the protection of the inert gas, the use of tungsten electrode and the arc generated between the welding material and hot melt filler metal welding wire welding method.
4. MMA welding of molten inert gas (GMAW)
The use of welding wire for the melting electrode inert gas shielded welding.
5.CO2 gas welding protection
Gas - shielded arc welding of gas with purity> 99.8% CO2.
6. Mixed gas shielded welding
By two or more gases, according to a certain percentage of the composition of the gas mixture as a protective gas shielded welding. TIG: Gas shielded arc welding using argon as the shielding gas.
7. Pulse argon arc welding
Using the base current to maintain the main arc of the ionization channel, and periodically add a high pulse current with a high peak pulse current to melt the metal and control the transfer of molten argon welding.
8. Plasma arc welding by means of water-cooled nozzle of the role of the binding of the arc to obtain a higher energy density of the plasma arc welding method.
9. In the process of hot-brazing welding, a metal material having a lower melting point than that of the base metal is used as the brazing filler metal to heat the brazing filler metal and the brazing filler metal to a temperature higher than the melting point of the brazing filler metal, state solder wetting base metal, fill the gap and the inter-diffusion with the base material to achieve the method of welding parts called brazing. Commonly used composite steel brazing method for induction brazing.
