Monday, August 16, 2010

[MW:6505] Stainless steel welding

Dear Friends,
 
  I have some doubts regarding the following issues, if u know please share with me,
 
 
Why generally tungsten thorium electrode is used in GTAW?
Why nitrogen cleaning is used in S.S?

Why color changes during welding in S.S?

what will happen if the mixing of pickling and passivation gel mixed in a un-propotionated manner means?



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Regards,
J.C.Andrews
QA/QC Engineer
Doha-Qatar.

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[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

Hello,   Please see the response below.   Regards.   P. Goswami, P. Eng, IWE.   From: materials-welding@googlegroups.com <materials-weld...