Manual arc welding and CO2 gas welding consumables and equipment

(1) the electrode should be drying in the high temperature drying box, the electrode drying times shall not exceed twice.

(2) wire packaging should be intact, if damaged and lead to wire contamination or bending, the disorder should be partially abandoned.

(3) CO2 gas purity should not be less than 99.9% (volume ratio), the water content should be less than 0.05% (weight ratio), bottle pressure is lower than 1MPa should stop using.

(4) welding machine voltage should be normal, ground tight firmly, reliable contact, cable and welding clamp without damage, wire feeder should be able to even wire, trachea should be no leakage or plug.