Why can't manual arc welding be performed with bare electrode?
Please read the role of electrode coating. Medicine skin on the one hand, stable arc, on the one hand protect and + alloy role, there is no drug skin, welding rod can not continue stable combustion, molding is not good, poor quality
Please read the role of electrode coating. Medicine skin on the one hand, stable arc, on the one hand protect and + alloy role, there is no drug skin, welding rod can not continue stable combustion, molding is not good, poor quality
The crust is intended to weld the pool over the metal, forming a skin to protect the molten pool from contact with air. If there is no medicine, the skin will protect the blowhole.
