Welding rod in many industries have a lot of applications, and electrode is also divided into many kinds, also known as non ferrous metal electrode. Non ferrous metal electrode is mainly refers to the nickel and nickel alloy welding electrode, copper and copper alloy electrode and aluminum and aluminum alloy welding electrode, etc.

Nickel and nickel alloy electrode is mainly used for welding of nickel and nickel alloy, can also be used for dissimilar metal welding and welding, welding groove dimensions of the joint and welding process similar to chromium nickel austenitic stainless steel welding process. The thermal conductivity of Ni and Ni alloy is poor, and the grain growth and thermal cracking can be easily caused by overheating during welding. The electrode should contain the right amount of AI, Ti, Mn, Mg, and so on deoxidizer and welding operations should be selection of small current, controlling arc length, arc attention to fill up the arc crater and keep the lower layer temperature.

Copper and copper alloy welding rod use wide, except with purple brazing welding of red copper, the is all kinds of copper and copper alloy, copper and steel welding electrode for bronze. At the same time, due to copper and copper alloy has good corrosion resistance, wear resistance, etc., therefore is also commonly used in welding bearing bear metal dumb friction and wear parts and corrosion resistance (such as seawater corrosion resistant parts. In addition, copper and copper alloy rod can also be used to repair welding of cast iron.

Aluminum and aluminum alloy welding electrode welding speed is fast, it is necessary to use a short arc welding, the operation is more difficult. Aluminum and aluminum alloy welding is mainly used for pure aluminum, cast aluminum, aluminum manganese alloy and aluminum magnesium alloy welded structure and welding. Pure aluminum strip is mainly used for welding aluminum and aluminum alloy on the joint performance requirements is not high. Aluminum silicon welding electrode has a high thermal cracking resistance; aluminum manganese electrode has good corrosion resistance.