When the welding machine short-circuits, does the welding rod heat up and melt first?

When a welding machine experiences a short circuit, the welding electrode does not necessarily burn red and melt first; this depends on the specific cause of the short circuit and the design of the welding machine. A short circuit can cause the welding rod to overheat, but it may also lead to damage to the welding machine itself. Most modern welding machines come equipped with short-circuit protection; they automatically cut off the power supply in the event of a short circuit, thereby preventing damage to the welding machine and the electrodes. Leaving the electrode stuck for too long doesn’t directly cause the welder to burn out; instead, it leads to overheating of the electrode, which can in turn cause a series of problems. The welder should try to avoid keeping the welding electrode stuck for long periods of time, and release the welding torch in a timely manner to extend the service life of the welding machine and the electrode. .