In order to improve the quality of welding, various protection methods have been developed. For example, gas-shielded arc welding uses argon and carbon dioxide gas to insulate the atmosphere to protect the arc and bath rate during welding. For example, when welding steel materials, deoxidation is performed by adding titanium iron powder with high affinity for oxygen in the electrode coating. It is possible to protect the beneficial elements manganese, silicon, etc. of the electrode from oxidation and enter the bath. After cooling, high quality welds are obtained.
