Transcription of TUNGSTEN GUIDEBOOK
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TUNGSTEN GUIDEBOOK
TUNGSTEN . GUIDEBOOK . GUIDEBOOK FOR THE PROPER SELECTION AND. PREPARATION OF TUNGSTEN ELECTRODES FOR. ARC WELDING. Nineth Printing: June 2013. This GUIDEBOOK for the Proper Selection and Preparation of TUNGSTEN Electrodes for Arc Welding is an effort to provide information for use by welders in various industries. Reasonable care was taken in the compilation and publication of this GUIDEBOOK to ensure the authenticity of its contents. No representation or warranty is made as to the accuracy or reliability of this information, or to imply fitness for any purpose. The information in this document is subject to change without notice. The information contained in this GUIDEBOOK may not be construed as a grant of any right of manufacture, sale, use or reproduction in connection with any method, process, product, or system which is covered by patent, copyright, or trademark.
In most applications, welders use tungsten that contains an emission-enhancing oxide such as Thorium, Cerium, or Lanthanum. These oxides naturally migrate from inside the tungsten to the heat at the point of the electrode, where they give off their oxide element in the arc, and leave a film of the metal alloy on the tip. This causes the ...
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