Interpretation of Common Problems in Wire Feeding Machines - Excessive Wear of Wire Feeding Holes on Conductive Nozzles

During welding, the wire feeder often experiences unsmooth and uneven wire discharge, which can cause difficulties in welding and directly affect welding quality. The weld seam that should be welded at once should often be divided into several sections before welding can be completed. So what are the problems we often encounter in our daily welding? The following experience is for reference only.

The problem that the wire feeder manufacturer is going to talk about today is that the wire feeding hole of the conductive nozzle is worn too much.

Cause: During welding, prolonged wear of the welding wire on the conductive nozzle can cause the wire feed hole to become too large.

Causing phenomenon: Excessive wire feeding holes in the conductive nozzle can cause poor conductivity during welding, resulting in discharge between the welding wire and the conductive nozzle. This can cause unstable wire feeding or adhesion with the conductive nozzle, accompanied by swinging of the welding wire back and forth in the molten pool, affecting the formation of the weld seam.

Attention: When welding, if it is found that the welding wire swings back and forth from the conductive nozzle, accompanied by adhesion with the conductive nozzle, a new conductive nozzle should be replaced in a timely manner. The conductive nozzle of the welding gun should match the diameter of the welding wire. If the diameter of the conductive nozzle hole is too small, it will cause excessive friction resistance, making the welding wire unobstructed or blocked. The conductive nozzle will cause the welding wire to swing back and forth in the molten pool, resulting in poor weld formation.