What is Tungsten Electrodes?
There are many kinds of tungsten electrodes depending on different material related to tungsten:
Pure tungsten, the least expensive of all tungsten, is generally used in the AC welding of aluminum and magnesium alloys. Yttrium tungsten is primarily used in military and aviation industry with narrow arc beam, high compressing strength, highest welding penetration at medium and high current. Thoriated tungsten electrodes are generally used for DC electrode negative or straight polarity applications such as carbon & stainless steels, nickel alloys and titanium, as they operate well even when overload with extra amperage, and then improve the performance of welding. Lanthanated tungsten electrodes generally used to weld carbon & stainless steels, nickel alloys and titanium. Cerium-tungsten electrodes is usually used in TIG welding, pladma welding, pladma cutting, pladma spay coating, pladma smelting and used in gas discharging light source. Zirconiated Tungsten Electrodes is most commonly used for AC welding of aluminum and magnesium alloys, which is preferred when Tungsten contamination of weld is intolerable. Composite Electrodes in welding can be much improved by adding two or more rare earth oxides which are mutually completementary.
Some pictures form
Chinatungsten
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Pure Tungsten Electrodes |
Thoriated Tungsten Electrodes |
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Lanthanated Tungsten Electrodes |
Cerium-Tungsten Electrodes |
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Zirconiated Tungsten Electrodes |
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