gdzhxc.com 2021-11-01 369
1. The tungsten electrode has pores; 2. the tungsten electrode is split; 3. the arc starting current is set too large.
1. Cut off the tip and sharpen it again; 2. Cut off the split and sharpen it or replace it with a new tungsten electrode; 3. Set the arc starting current to about half of the upper limit of the working current.
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