so, i've been doing allot of reading about choosing the right shield gas for
TIG and i've come across a variety of info, and some of it dont make any
sense. in this example i'll use stainless steel as the metal.

so, the 1st thing i ran into is the idea of mixing gases. i found numerous
quotes of people using lots of different mix types, from ar-he to ar-he-co2
to ar-h-o. one article i found was written by some guy who claimed to have
worked in the gas industry and says that they hype the use of mix gases so
that the gas makers can sell more gas of varying type. then i see some
posting about why different types of mixed gases work better than other,
while yet another article claims that pure he or ar is best.

so today i went to my local airweld and asked if they had a tri-mix in
60cu.ft., they said "not in that size, but we can order it in, what you
looking for?". i said i wanted 66ar-33he-1co2, and the guys says "what are
you MIG'ing with tri-mix?", and i told him it was for TIG on ss304. he
looked at me like i had two heads, he could not believe anyone would want
co2 in their mix while TIG'ing. he also claims that anyone who says they
have 1% of any gas in a tank is lying because, and that his pump equipment
(as well as others) is not accurate enough to get 1% of a gas into the mix.
he also said it could only be done in a lab with special weigh and pump
equipment.

so, with all the info online about gas mixes, what are you guys using to TIG
ss304 tubing? something that helps wetout, etc? i've heard of ar/he,
ar/he/o, ar/he/co2, ar/he/h

what really works??

In article <W4dxh.11806$Xq6.4903@bgtnsc04-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:

so, i've been doing allot of reading about choosing the right shield gas
for
TIG and i've come across a variety of info, and some of it dont make any
sense. in this example i'll use stainless steel as the metal.

so, the 1st thing i ran into is the idea of mixing gases. i found
numerous
quotes of people using lots of different mix types, from ar-he to
ar-he-co2
to ar-h-o. one article i found was written by some guy who claimed to
have
worked in the gas industry and says that they hype the use of mix gases
so
that the gas makers can sell more gas of varying type. then i see some
posting about why different types of mixed gases work better than other,
while yet another article claims that pure he or ar is best.

so today i went to my local airweld and asked if they had a tri-mix in
60cu.ft., they said "not in that size, but we can order it in, what you
looking for?". i said i wanted 66ar-33he-1co2, and the guys says "what
are
you MIG'ing with tri-mix?", and i told him it was for TIG on ss304. he
looked at me like i had two heads, he could not believe anyone would want
co2 in their mix while TIG'ing. he also claims that anyone who says they
have 1% of any gas in a tank is lying because, and that his pump
equipment
(as well as others) is not accurate enough to get 1% of a gas into the
mix.
he also said it could only be done in a lab with special weigh and pump
equipment.

so, with all the info online about gas mixes, what are you guys using to
TIG
ss304 tubing? something that helps wetout, etc? i've heard of ar/he,
ar/he/o, ar/he/co2, ar/he/h

what really works??

I have never used a TIG gas with Oxygen, Hydrogen, or CO2 in it.
I would love to try it out though.

I have always used Argon or Argon/Helium.

Is there some way in which Argon/Helium doesn't work for you?

As you know from my posts, the setup I have used for the last 12 years
is a bottle of Argon, a bottle of Helium and a simple mixing rig.

Just add Helium when you need it.

I have heard of the Hydrogen mixes before, but not Oxygen or CO2.

The WeldReality site, where he bashes the gas industry for expensive
complex mix gasses, has nothing to do with TIG, and has nothing to do
with tri-mix on stainless.

It has to do with production wire feed welding of steels.

so, i've been doing allot of reading about choosing the right shield gas
for TIG and i've come across a variety of info, and some of it dont make
any sense. in this example i'll use stainless steel as the metal.

Kryptoknight wrote:

so, i've been doing allot of reading about choosing the right shield gas
for TIG and i've come across a variety of info, and some of it dont make
any sense. in this example i'll use stainless steel as the metal.

If you google for "welding gas mixer", you'll find what will save you
money
in the long run.
Also, I remember having read that Linde developed a welding gas for Al
(not
completely sure about Al) that contained O2 (less than 1%, IIRC). Couldn't
find a link.

So mixing "unexpected" gases can make sense. Or Linde is selling snake gas
er ... oil.

As I'm not into TIGing, can't tell you about usefull ingredients.


Nick
--
***********************************
*** Available now in NZ and AUS ***
***********************************
http://www.yadro.de

do i really need a fancy mixer machine? i can take a T and fab in some
turbulence vanes to help mix the 2 gases together as they flow. i suspect
that even the turbulence of the gases leaving the torch tip into the cup
would be mixing the gases together....


"Nick Mueller" <muellernick@gmx.de> wrote in message
news:1355060.WUtNvTYHJp@yadro.de...

Kryptoknight wrote:


so, i've been doing allot of reading about choosing the right shield gas
for TIG and i've come across a variety of info, and some of it dont make
any sense. in this example i'll use stainless steel as the metal.

If you google for "welding gas mixer", you'll find what will save you
money
in the long run.
Also, I remember having read that Linde developed a welding gas for Al
(not
completely sure about Al) that contained O2 (less than 1%, IIRC). Couldn't
find a link.

So mixing "unexpected" gases can make sense. Or Linde is selling snake gas
er ... oil.

As I'm not into TIGing, can't tell you about usefull ingredients.


Nick
--
***********************************
*** Available now in NZ and AUS ***
***********************************
http://www.yadro.de

i have always just used ar, and now wanted to try a mix of some sort. i did
allot of searching online and found some recent posts of people using
66ar-33-he-1co2, they say it wets better than ar-he alone.

so is the mixer you mention just 2 tanks with cfm gages feeding into a "Y"
coupler which then feeds the machine? are mix %'s by volume? if i do 5cfm-ar
and 5cfm-he is that a 50/50 mix ??

thanks ernie, you always have good info....


"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-73D988.22280803022007@news.west.earthlink.net...
In article <W4dxh.11806$Xq6.4903@bgtnsc04-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:

so, i've been doing allot of reading about choosing the right shield gas
for
TIG and i've come across a variety of info, and some of it dont make any
sense. in this example i'll use stainless steel as the metal.

so, the 1st thing i ran into is the idea of mixing gases. i found
numerous
quotes of people using lots of different mix types, from ar-he to
ar-he-co2
to ar-h-o. one article i found was written by some guy who claimed to
have
worked in the gas industry and says that they hype the use of mix gases
so
that the gas makers can sell more gas of varying type. then i see some
posting about why different types of mixed gases work better than other,
while yet another article claims that pure he or ar is best.

so today i went to my local airweld and asked if they had a tri-mix in
60cu.ft., they said "not in that size, but we can order it in, what you
looking for?". i said i wanted 66ar-33he-1co2, and the guys says "what
are
you MIG'ing with tri-mix?", and i told him it was for TIG on ss304. he
looked at me like i had two heads, he could not believe anyone would want
co2 in their mix while TIG'ing. he also claims that anyone who says they
have 1% of any gas in a tank is lying because, and that his pump
equipment
(as well as others) is not accurate enough to get 1% of a gas into the
mix.
he also said it could only be done in a lab with special weigh and pump
equipment.

so, with all the info online about gas mixes, what are you guys using to
TIG
ss304 tubing? something that helps wetout, etc? i've heard of ar/he,
ar/he/o, ar/he/co2, ar/he/h

what really works??

I have never used a TIG gas with Oxygen, Hydrogen, or CO2 in it.
I would love to try it out though.

I have always used Argon or Argon/Helium.

Is there some way in which Argon/Helium doesn't work for you?

As you know from my posts, the setup I have used for the last 12 years
is a bottle of Argon, a bottle of Helium and a simple mixing rig.

Just add Helium when you need it.

I have heard of the Hydrogen mixes before, but not Oxygen or CO2.

The WeldReality site, where he bashes the gas industry for expensive
complex mix gasses, has nothing to do with TIG, and has nothing to do
with tri-mix on stainless.

It has to do with production wire feed welding of steels.

In article
h4mxh.520557$Fi1.160530@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:


i have always just used ar, and now wanted to try a mix of some sort. i did
allot of searching online and found some recent posts of people using
66ar-33-he-1co2, they say it wets better than ar-he alone.

so is the mixer you mention just 2 tanks with cfm gages feeding into a "Y"
coupler which then feeds the machine? are mix %'s by volume? if i do 5cfm-ar
and 5cfm-he is that a 50/50 mix ??



Yep.
Grant was describing my setup.
The most important parts are the back-check valves on both gas lines.
Otherwise you can cross-fill your gas bottles.
Contaminating your gas bottles pisses off your gas supplier.

You can get all the parts needed from a Western Gas Fittings catalog
through any welding supplier.

http://www.westernenterprises.com/enterprises/indcontents.html

You end up just guessing on the mix.
It helps if you can find a real helium flow gauge, and not just an argon
flow gauge with different markings.

Grant found some real nice Meco flow tubes that have a much better
gradation for helium and any others I have seen.

You need 2 welding cylinders, 2 regulator/flowmeters, and some hardware.
My flowmeters end in male B sized (9/16-1 RH threads, same as oxygen
hose, so I go directly from flowmeters to check valves. From the check
valves, short hoses to a Y coupling. From the single leg of the Y
coupling, the hose from your TIG setup.

Adding more helium to the argon raises the temperature of the arc.

If you want a trimix, you can use this setup to mix C25 with helium for
example.

GWE

Kryptoknight wrote:

do i really need a fancy mixer machine? i can take a T and fab in some
turbulence vanes to help mix the 2 gases together as they flow. i suspect
that even the turbulence of the gases leaving the torch tip into the cup
would be mixing the gases together....


"Nick Mueller" <muellernick@gmx.de> wrote in message
news:1355060.WUtNvTYHJp@yadro.de...

Kryptoknight wrote:


so, i've been doing allot of reading about choosing the right shield gas
for TIG and i've come across a variety of info, and some of it dont make
any sense. in this example i'll use stainless steel as the metal.

If you google for "welding gas mixer", you'll find what will save you
money
in the long run.
Also, I remember having read that Linde developed a welding gas for Al
(not
completely sure about Al) that contained O2 (less than 1%, IIRC).
Couldn't
find a link.

So mixing "unexpected" gases can make sense. Or Linde is selling snake
gas
er ... oil.

As I'm not into TIGing, can't tell you about usefull ingredients.


Nick
--
***********************************
*** Available now in NZ and AUS ***
***********************************
http://www.yadro.de

i'm not 100% familiar with tanks and types of regulators used on each. so
can i simply use the same regulator for helium tank as i do on my argon
tank?




"Grant Erwin" <grant@NOSPAMkirkland.net> wrote in message
news:12sc6ma7gd8ne54@corp.supernews.com...

You need 2 welding cylinders, 2 regulator/flowmeters, and some hardware.
My flowmeters end in male B sized (9/16-1 RH threads, same as oxygen
hose, so I go directly from flowmeters to check valves. From the check
valves, short hoses to a Y coupling. From the single leg of the Y
coupling, the hose from your TIG setup.

Adding more helium to the argon raises the temperature of the arc.

If you want a trimix, you can use this setup to mix C25 with helium for
example.

GWE

Kryptoknight wrote:


do i really need a fancy mixer machine? i can take a T and fab in some
turbulence vanes to help mix the 2 gases together as they flow. i suspect
that even the turbulence of the gases leaving the torch tip into the cup
would be mixing the gases together....


"Nick Mueller" <muellernick@gmx.de> wrote in message
news:1355060.WUtNvTYHJp@yadro.de...


Kryptoknight wrote:



so, i've been doing allot of reading about choosing the right shield gas
for TIG and i've come across a variety of info, and some of it dont make
any sense. in this example i'll use stainless steel as the metal.

If you google for "welding gas mixer", you'll find what will save you
money
in the long run.
Also, I remember having read that Linde developed a welding gas for Al
(not
completely sure about Al) that contained O2 (less than 1%, IIRC).
Couldn't
find a link.

So mixing "unexpected" gases can make sense. Or Linde is selling snake
gas
er ... oil.

As I'm not into TIGing, can't tell you about usefull ingredients.


Nick
--
***********************************
*** Available now in NZ and AUS ***
***********************************
http://www.yadro.de

In article <W4dxh.11806$Xq6.4903@bgtnsc04-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:

so, i've been doing allot of reading about choosing the right shield gas
for
TIG and i've come across a variety of info, and some of it dont make any
sense. in this example i'll use stainless steel as the metal.

so, the 1st thing i ran into is the idea of mixing gases. i found
numerous
quotes of people using lots of different mix types, from ar-he to
ar-he-co2
to ar-h-o. one article i found was written by some guy who claimed to
have
worked in the gas industry and says that they hype the use of mix gases
so
that the gas makers can sell more gas of varying type. then i see some
posting about why different types of mixed gases work better than other,
while yet another article claims that pure he or ar is best.

so today i went to my local airweld and asked if they had a tri-mix in
60cu.ft., they said "not in that size, but we can order it in, what you
looking for?". i said i wanted 66ar-33he-1co2, and the guys says "what
are
you MIG'ing with tri-mix?", and i told him it was for TIG on ss304. he
looked at me like i had two heads, he could not believe anyone would want
co2 in their mix while TIG'ing. he also claims that anyone who says they
have 1% of any gas in a tank is lying because, and that his pump
equipment
(as well as others) is not accurate enough to get 1% of a gas into the
mix.
he also said it could only be done in a lab with special weigh and pump
equipment.

so, with all the info online about gas mixes, what are you guys using to
TIG
ss304 tubing? something that helps wetout, etc? i've heard of ar/he,
ar/he/o, ar/he/co2, ar/he/h

what really works??

I have never used a TIG gas with Oxygen, Hydrogen, or CO2 in it.
I would love to try it out though.

I have always used Argon or Argon/Helium.

Is there some way in which Argon/Helium doesn't work for you?

As you know from my posts, the setup I have used for the last 12 years
is a bottle of Argon, a bottle of Helium and a simple mixing rig.

Just add Helium when you need it.

I have heard of the Hydrogen mixes before, but not Oxygen or CO2.

The WeldReality site, where he bashes the gas industry for expensive
complex mix gasses, has nothing to do with TIG, and has nothing to do
with tri-mix on stainless.

It has to do with production wire feed welding of steels.