[MW:11145] purging/backing gas...............

Hi mustaffi,

 

It is better to use 99.998% purity of ultra pure argon as a purging & shielding gas.It gives sound quality of welding and better results.

In this other components are

                                         oxygen   -- < 4.00PPM

                                         Moisture -- < 4.00PPM

                                         THC       --  < 0.5PPM

Oxygen & moisture percentage is more than 0.4PPM it may leads to corrosion ,contamination &  porosity.

Maintain gas flow rate between 25 to 40PPM.

 

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THANKS & REGARDS

 

KALYAN VVV

WELDING ENGINEER

THYSSEN KRUPP INDUSTRIES (INDIA) LTD
HYDERABAD

Mob.NO- 09885273257

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