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Tungsten electrodes are easily broken after sharpening

gdzhxc.com     2021-11-01     294

Cause Analysis:

1. Excessive current used. Tungsten poles are used for a long time under high current conditions. When the temperature reaches the recrystallization temperature of tungsten grains (1600°C), the tungsten grains will become round and thick, and the tungsten poles will become brittle.


1. For long-term use, the current should be used near the allowable current of the tungsten needle.

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