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  1. Default bad contamination. cannot weld aluminium

    hi gang. i will try my best to explain my problem since my english is not optimal. yesterday. i was welding on aluminum to practice my welding skills. After a short pause. when i restart to weld, this appened.A big black carbon smoke around my arc,and i'm not abble to do anything.what can do that. thanks.Click image for larger version. 

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    Last edited by js quebec; 09-06-2017 at 01:23 AM.

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