Tri Mix ratios not listed

By tanker Date 03-31-2008 18:48

I got a cylinder of tri mix for s/s the outher day from a major supplier and they only listed ar and co2 but not the he.Is this to protect their secret mix or what. I have also noticed that they do not put the mix ratio on the cylinder either.Is this something new? The gas is Sun Star.

By Lawrence (*****)

Date 03-31-2008 19:10 Edited 03-31-2008 19:14

Add the percentage of Argon to the precentage of C02..... take the sum and subtract from 100

The remaining number is the percentage of Helium

You have uncovered their seceret!

Or they just possibly made a mistake and gave you a bottle of 2 part gas mixture....

There is nothing at all wrong and everything right about insisting that your gas bottles are *labled* with the exact mixtures and percentages of each componant. If they don't want to do it.... go shopping.

:)

They put a fancy name on it and tell you all sorts of stories about how well it wets and penetrates..... There are in fact very few instances when a 3 part gas mix is needed for Spray or Pulsed Spray transfer on stainless steels.. Short circuit is a horse of a different color...

But if your doing spray transfer or pulsed GMAW stainless, you can prolly save a boatload of money by eliminating the helium from your gas mix altogether.

By js55

Date 03-31-2008 20:41

One other thing. There ain't no secret mixes. They may not be known by the guy doing the welding. Not unusual in this industry. But they are certainly known by everybody else it the gas industry.

By BkTaylor (*)

Date 03-31-2008 21:55

There is a major shortage of Helium right now too so you will be paying a very high premium for it as well. Sounds like diesel too... You can use straight Argon and get the same results and it is only a third or even less of the cost of Helium.