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Monday, November 1, 2010

Benefits of TIG welding electrodes:

• Make easy arc starting
• Enlarge arc stability
• Get better current carrying capability of the electrode
• Decrease the risk of weld contamination
• Boost electrode life

Oxides used are mainly zirconium, thorium, lanthanum or cerium. Added extras are usually 1% - 4%. These oxides very much increase arc initiation, particularly when direct current (DC) welding is working. Thorium oxide (thoria) has been used for a lot of years, have been establishing effective in terms of extended life and thermal competence. Zirconium oxide (zirconia) has been usually used for alternating (AC) TIG welding, usually for welding aluminum.

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