Another Quick Poll

By Lawrence (*****)

Date 03-27-2009 12:34

Does anybody who runs GMAW spray transfer on plain carbon steel with solid wire use a Ar/Oxy gas mixture that exceeds 98/2 Ar/Oxygen..... for example 95/5?

Same question to third party inspectors... Do you see gas mixtures exceeding 2% oxygen ?

By hogan

Date 03-27-2009 14:32

We have experimented with it but never put in into production

By ravi theCobra (**)

Date 03-27-2009 16:07

We ran quite a bit of 95 Ar - 5 O2 in the early 70's spray arc on steel
ran it very sucessfully

By js55

Date 03-27-2009 17:23

Structural shop I worked in ran exclusively 95/5. No problems. Wets well. Very well. Nice fluid puddle. Never had any trouble with UT's on CJP splices. Issues with impact testing and siesmic though. Not insurmountable but retesting is necessary.

By CWI555

Date 03-27-2009 22:49

I've seen it, especially 95/5. Depends on application.