Is the resistance of welding electrode large?I don't know much about welding. I want to know the general resistance of welding electrode. I also want to know the difference between welding and sub arc welding
Arc welding is a sudden disconnection, producing high voltage arc, burning welding rod
No, it can be very small!The core of the electrode is made of good conductive material. The solder around the core is a poorly conductive material.Welding is the use of contact resistance between the electrode and the workpiece is larger, so the heat is larger, the solder, cores and workpiece partial melting, achieve the purpose of welding.
Welding is a piece of wire resistance is very small, short time can be considered to be zero resistance. When the welding work is not formed because of a middle and short circuit welding machine, welding machine and welding rod if not directly connected to the grid is short circuited. Welding and argon arc welding are welding, is essentially the same when welding. Rely on electrode play outside the arc stability and anti oxygen, argon arc welding on the welding operation point wrapped around the cut off the air and argon arc anoxybiotic.
