Reasons for welding aluminum wire feeding tube with gas shielded welding machine.

The reason why the gas shielded welding machine needs to change the wire feeding tube when welding aluminum can be analyzed from the following points:

The aluminum welding wire is softer than the iron or stainless steel welding wire, so the friction in the iron conduit will be larger, which will affect the wire running and lead to the phenomenon of unsmooth wire running.

Solution: Change the special conduit for aluminum, such as graphite conduit, to reduce the resistance of welding wire in the conduit.

After a long time of aluminum welding wire, the residue or dust on the surface of the welding wire will remain in the conduit, which will lead to increased friction in the conduit. At this time, it is necessary to change the wire tube.

Solution: Blow the sundries in the catheter irregularly, or replace the wire feeding tube.

If graphite tube is chosen for aluminum wire feeding tube, because it is afraid of high temperature, during aluminum welding, high current welding will cause the temperature of the part where the gun head is away from the conductive nozzle to rise and the catheter will deform, which will also affect the wire routing, so it is necessary to cool the gun head to reduce the influence on the wire feeding tube.

Solution: If it is welded by a high-current aluminum welding gas shielded welding machine, it is recommended to change the water cooler and match with a suitable water cooling box of the large dissolving machine.

The above three points basically sum up why we should pay attention to replacing the wire feeding tube or reduce the frequency of replacing the wire feeding tube in gas shielded welding of aluminum welding.