When argon arc welding is spot welding, how does the muzzle decay quickly?

The common reason is that the welding specification exceeds the standard, such as excessive current or long duration.

In addition, pay attention to whether there is any problem with the cooling water circulation of the welding torch.

Another reason may be poor electrode quality. The electrode is generally made of high tungsten alloy, and ablation-resistant thorium (Th) and cerium (Ce) are added to form tungsten-thorium electrode and tungsten-cerium alloy. Poor composition or unqualified process may shorten the service life, so try to choose products from reliable manufacturers.