Common problems and solutions for silver welding process

In the welding process of silver welding rods, various problems may be encountered that affect the welding quality. Mastering common problems and solutions can effectively improve the welding effect.

Space pores are one of the common problems, mostly due to incomplete cleaning before welding or the gas is not discharged in time during welding. Solution: thoroughly clean the oil stains and oxide layers on the surface to be welded, keep the flame stable during welding, and allow the gas to escape fully. If necessary, the welding temperature can be appropriately increased.

Unfusion is mainly caused by uneven heating or insufficient temperature. It is necessary to ensure that the base material and welding rod are heated evenly, and the welding rod is fed to the welding rod after the base material reaches a sufficient temperature to avoid the welding rod melting in advance.

Weld cracks may be caused by excessive cooling speed or excessive impurities in the base material. After welding, the weld can be slowly cooled. For the base material with more impurities, preheating can be performed first to reduce the possibility of cracks.

Welding deformation is mostly caused by excessive heating. The heating temperature and range need to be strictly controlled, and symmetric welding is used to reduce heat concentration and effectively prevent deformation.