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Pure Tungsten Electrode Shape, Use, Role

    Pure tungsten electrode containing tungsten minimum 99.5%, no alloying elements. Pure tungsten has a very high electron work function, so compared to other alloy tungsten electrode, the pure tungsten electrode arc is more difficult to maintain the stability of the arc beam is also more difficult. In addition, due to the higher electron work function, the electrode tip temperature is higher and prone to grain growth, which will lead to instability of the arc, arc more difficult, and the service life is shorter. Pure tungsten is only used for AC welding, however, good DC can also be selected.Pure Tungsten Electrode  In the pure tungsten electrode, cerium, lanthanum and thorium electrode used in the tip or truncated head used in the inverter AC and DC welding process. To properly polish the tungsten in order to avoid grinding the use of specially developed grinding wheel, it is made of boron nitride or can resist the hardness of tungsten made of diamonds. Therefore, it is suitable for pure tungsten electrode.Pure Tungsten Electrode   Uses: The use of pure tungsten electrode is the most widely used in the AC welding alternating current. It is generally used for welding aluminum, magnesium alloy (AC) is generally used in alternating current. Pure tungsten electrode, can also provide clean, heated when the ball pitch. This shape provides a balanced waveform for AC welding arc stability, which is particularly good. Pure tungsten electrode also provides a good arc stabilized sine wave AC welding aluminum and magnesium. However, they are not used for DC welding. Pure tungsten electrodes are widely used in specific industries for welding applications. Production: the world's annual total consumption of tungsten electrode to reach 1600t, the market demand with the economic development is still growing. China tungsten electrode total annual output of the world's tungsten electrode output of about 3/4. China tungsten electrode production has been growing steadily, and from 2005 onwards a substantial increase in production in 2009 to reach 1,200 tons.Pure Tungsten Electrode

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