mig welding 11 ga 309 ss

By tinknocker Date 02-22-2001 04:18

I am welding11 ga ss baffles in a tank the horizontal welds are coming out perfect but the vert-up welds are raising in the middle like the weld is cold but it is penetrating fully? miller remote wire feeder with .035 solid wire,tri-mix, 22 volts, 185 amps, 30 wire speead. I played with voltage and wire speed all day and those numbers are where it runs the best but still not right.
can anyone help.
Thanks

By bhiltz

Date 02-22-2001 11:02

If there is any way you can vert. down , do it , you'll save yourself a lot of headaches. Thats what i've found out anyway! You can also try a tri-mix gas with 1 part hydrogen in it , (Liquid Air Blue Shield #10),if you try this gas you will need a different nut on your regulator to fit the tank valve, it has a thread on it like acetelene fittings. but your supplier will be able to outfit you properly.

By tinknocker Date 02-22-2001 11:27

I wish I could vert-down but the company who's site we are on want's up so I'm at thier mercy. I will mention that gas to my boss.
Thanks

By fschweighardt (***)

Date 02-23-2001 13:09

The AIr Liquide gas for short-circuit on stainless is Blueshield 9

By bhiltz

Date 02-23-2001 14:10

Yes I know it is but you should give #10 a try