Examen
Welding Chapter 11 and 12 Test Already Passed
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___ rapidly expand and push the surrounding air away from the molten weld pool. Gas formers _____ all help remove oxides, and/or nitrides in the weld. Aluminum, silicon, and titanium _____ are added to the flux and form a slag. Potassium, sodium, and zirconium _____ can be added to improve hard...
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