How to Weld With Cellulosic Electrodes

Cellulosic electrodes, or covered electrodes in which the covering includes a high proportion of cellulose, are used as part of stick metal arc welding and are noted for their good penetration, dimensional accuracy, high endurance and long functional life. When the mechanical properties of the welded material are of the greatest importance, cellulosic electrodes are recommended. Cellulosic electrodes are easy to use in any position, and they are particularly easy to use in vertical down welding.

Things You'll Need

  • Stick metal arc welder
  • Cellulosic electrode
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Instructions

    • 1

      Turn on the electrical power supply. An electric arc will be started whenever an electrode comes into contact with grounded metal surfaces.

    • 2

      Insert the cellulosic electrode into the electrode holder and then position the electrode slightly above the metal to be welded.

    • 3

      Swing the electrode down with a twist of your wrist, causing it to scratch the metal being welded. Slightly raise the electrode from the metal, creating an arc. Adjust the electrode angle so that it is 12 to 20 degrees from the vertical. Allow the electrode to create a molten pool on the metal.

    • 4

      Keep the electrode angle and height constant as you weld. To move your electrode, move your whole body, not just your wrist; otherwise, you will continually be changing your welding angle. As the back side of the molten pool cools, you will create ripples in the finished weld.

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