Welding electrode with structural surface
A technology of welding electrodes and electric sparks, which is applied in the direction of welding medium, electrode manufacturing, manufacturing tools, etc., can solve the problems of fast wear of guide parts, hindering the current transmission of welding rods and electrodes, rough shell, etc., and achieve the effect of high electric corrosion
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[0012] exist figure 1 In , the reference sign 1 denotes the core of the electrode, which may consist of copper, brass or, for example, a composite electrode such as a steel core wire surrounded by a copper layer. A shell 2 whose surface is structured is applied to the core 1 . exist figure 2 , 3 In , this structure is a helical structure. It is also possible to design this helix with a significantly higher pitch, up to the dimples running perpendicular to the electrode axis. After completion of the shell 2 with a structured surface, eg made of β-brass, the depressions 3 on the shell 2 are filled with a filler 4 made of metal or a metal alloy, which can be made of Made of gamma-brass rich in zinc, or pure zinc. In addition, zinc alloys containing 90% or more of zinc may also be used. The only prerequisite is that the filler 4 volatilizes very rapidly during the galvanic erosion, so that the actual structured surface of the shell 2 can be used for the subsequent galvanic ...
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