24 May,2024
Tip：Hand arc welding method
Hand arc welding is the earliest developed and widely used welding method among various arc welding methods. It uses an externally coated welding rod as the electrode and filler metal, and the arc burns between the end of the welding rod and the surface of the workpiece to be welded.
The coating can generate gas under the action of arc heat on the one hand to protect the arc, and on the other hand it can generate slag to cover the surface of the molten pool to prevent the interaction between the molten metal and the surrounding gas. The more important function of slag is to react physically and chemically with the molten metal or add alloying elements to improve the properties of the weld metal.
Manual arc welding equipment is simple, lightweight and flexible to operate. It can be used for welding short seams in maintenance and assembly, especially in hard-to-reach areas. Hand arc welding with corresponding welding rods can be applied to most industrial carbon steel, stainless steel, cast iron, copper, aluminum, nickel and their alloys.
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