Zirconium Use and Performance of The Tungsten Electrode

Zirconium Tungsten Tungsten electrodes for TIG welding , which is a tungsten matrix by powder metallurgy method of incorporation of about 0.3% -5% of a rare earth element such as : cerium, thorium , lanthanum , zirconium, yttrium and the production of tungsten alloy strip , then after pressure processing, diameters from 0.1 to 80mm, standard length from 75 to 600 , while the most commonly used specifications for diameter 1.0,1.6,2.4 and 3.2 , the shape of the TIG electrode terminal is an important factor in terms of , when using DCSP , the power ground terminal to be pointed shape , and the angle of the tip with the application, electrode diameter , and welding current to change , narrow edge connectors require a smaller angle , when the weld very thin material, required low current , like needle electrodes for a minimum to stabilize the arc , and to ensure proper grounding electrode arc easily , good arc stability and appropriate weld bead width . When the AC power to the welding, grinding electricity without the extreme , because using the appropriate welding current, electrode terminals will form half of the ball , if the increase in the welding current, electrode tip becomes bulb -shaped and may melt and contaminate molten gold .

Zirconium tungsten electrode ( grades WZ3, WZ8) under the conditions of the AC welding performance is good, and has good corrosion resistance. Especially in the case of high load currents , zirconium tungsten electrodes increased performance can not be replaced by other electrodes . In welding , the end portion of the tungsten electrode of zirconium to maintain a reduced spherical tungsten infiltration phenomena , conditions suitable for the exchange of Mg alloys.


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