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The knowledge about Lanthanum tungsten electrode

Views:14     Author:Site Editor     Publish Time: 2017-07-06      Origin:Site

  Lanthanum tungsten electrode added lanthanum oxide in tungsten, Lanthanated tungsten electrode production. Specific data are listed in the following table:

  Grades of dopant doping amount other Graphite Electrode Scrap doping amount electron work color coating head

  WL10 La2O3 0.80~1.20% <0.20% 2.6~2.7 black

  WL15 La2O3 1.30~1.70% <0.20% 2.8~3.0 yellow

  WL20 La2O3 1.80~2.20% <0.20% 2.8~3.2 blue

  Lanthanum tungsten has the following advantages:better mechanical cutting performance,better creep resistance of high recrystallization temperature,good ductility.

  Lanthanum tungsten electrode has electrode material is the most popular international,especially the content of 1.5% (with distinction and content 2%) lanthanum tungsten electrode.

  Scientific studies show that, 1.5% lanthanum tungsten has conductive performance, the most close to 2% thoriated tungsten shown Graphitized Petroleum Coke.Therefore, welding personnel can replace electrode easily, without changing the equipment parameters.

  There is a very famous site test on 1998, is 2% thorium tungsten electrode, tungsten electrodes 1.5% lanthanum, cerium tungsten electrode 2% and two manufacturers respectively in 70 and 150 an electric current, welding task, 300 V DC environment fruitis, in these two cases, 1.5% lanthanum tungsten electrode show the excellent weldingperformance, but also reflects the characteristics of its burn rate is small.

  Lanthanum tungsten electrode is also applicable to AC welding tasks, and performance.

Related keywords: tungsten bars, Molybdenum barsWolfram Electrodesrefractory metal base composite materials, Tig Welding Electrodes, Tungsen contacts, Special shape part


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