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​5.8 Electrode Care

It is important that the user follow the electrode manufacturer's recommendations regarding proper ampere settings, base metal preparation, welding technique, welding position, and the like. Electrodes must not be used after being exposed to dampness because the steam generated by the heat of the arc may cause the covering to be “blown away,” and also cause hydrogen inclusions. Questionable electrodes should be baked at 250°F (120°C) for several hours to drive off any moisture.


Because electrodes that look nearly identical may have very different welding properties, it is important to label and store all electrodes in carefully marked bins. Use masking tape to bind electrodes into bundles, and label the bundles carefully before putting them into storage. Electrodes are costly, and loss of identification can lead to losses in time and money.


If an electrode is used beyond its ampere rating, it will overheat, and the covering will crack. This will spoil the electrode. The excess current will also cause considerable spattering of the molten metal.
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