1. Low-temperature flame welding is mainly used to repair some holes and holes in sheet metal, such as drilling a large hole of about 10 mm at the bottom of cans and welding with low-temperature WEWELDING53 welding wire. However, this kind of metal sheet is thicker than pop-top cans, and can be heated by the third generation derivative liquefied gas spray gun, which can not only raise the temperature, but also burn the metal sheet. When heated to the temperature, it's like drawing a circle.

Second, argon arc welding. This application of argon arc welding is also a relatively conventional welding method, which is suitable for welding thin aluminum, including welding repair of aluminum sheet metal and aluminum shell. The classic is the aluminum alloy welding of WSME3 15B or 400B.

Three, double pulse gas shielded welding, this kind of simple repair welding for aluminum sheet, is especially suitable for the thin plate industry under the premise of low requirements for weld quality, and should not be used for fine repair welding such as shell and oil tank welding as far as possible.