Why should the welding electrode prevent moisture? What happens if you get soaked by water?
Because if there is no moisture prevention, there will be welding impurities, welding seam, welding defects are not strong, and may affect the strength of base metal
Shanpaolv ah, do not know it. The electrode coating can be used in the welding process to re metallurgical and protect the weld pool and improve the weld formation. The skin of the medicine is affected with dampness, resulting in deterioration of the titanium, iron and calcium in the coating, and losing the original chemical properties. Even when drying, the deterioration of the compound in the welding will also produce water vapor, itching, hydrogen and other harmful substances to weld metal embrittlement. The change of the properties of the crust makes its physical properties different from those of the past, such as heat conduction, conductivity, melting point, melting effect, etc.. Influence re forming, resulting in thermal oxidation, metal cooling, excessive stress concentration, quenching...
The electrode coating can be used in the welding process to re metallurgical and protect the weld pool and improve the weld formation. The skin of the medicine is affected with dampness, resulting in deterioration of the titanium, iron and calcium in the coating, and losing the original chemical properties. Even when drying, the deterioration of the compound in the welding will also produce water vapor, oxygen, hydrogen and other harmful substances to weld metal embrittlement. The change of the properties of the crust makes its physical properties different from those of the past, such as heat conduction, conductivity, melting point, melting effect, etc.. Affect the re forming, resulting in thermal oxidation, metal cooling too fast, stress concentration, quenching, welding will indirectly lead to more slag, bubbles, the current is not good control, partial arc and other phenomena.
