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Science Forum Index » Engineering - Joining (Welding) Forum » Where's Ernie ?
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| Author |
Message |
| Kryptoknight |
Posted: Thu Jan 11, 2007 9:21 pm |
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Guest
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a few months back i sold off most of the tunsgten i had (some pure and some
thoriated reds) and got some new 2% lanthanated for doing dc and some white
zirconiated for doing ac. however, the 2% lanth was working very odd in my
machine, and from some recent articles online i just found the zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on some AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks |
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| Ernie Leimkuhler |
Posted: Fri Jan 12, 2007 10:40 am |
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Guest
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In article
<noBph.370429$Fi1.311283@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
Quote: a few months back i sold off most of the tunsgten i had (some pure and some
thoriated reds) and got some new 2% lanthanated for doing dc and some white
zirconiated for doing ac. however, the 2% lanth was working very odd in my
machine, and from some recent articles online i just found the zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on some AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks
I have had a few weird 2% Lanthanated tungstens, where the arc danced
around.
I have never had that problem on 1.5% lanthanated tungstens.
Zirconiated are still the best thing for high amperage AC. |
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| Kryptoknight |
Posted: Fri Jan 12, 2007 7:03 pm |
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Guest
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why 2% lanth operate so funny ?? is it some sort of skinning effect with the
hf ? my torch would ignite like a blowtorch, i suspect from air somehow
getting sucked into the nozzle....??
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-DA6136.06401112012007@news.west.earthlink.net...
Quote: In article
noBph.370429$Fi1.311283@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
a few months back i sold off most of the tunsgten i had (some pure and
some
thoriated reds) and got some new 2% lanthanated for doing dc and some
white
zirconiated for doing ac. however, the 2% lanth was working very odd in
my
machine, and from some recent articles online i just found the
zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on some
AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks
I have had a few weird 2% Lanthanated tungstens, where the arc danced
around.
I have never had that problem on 1.5% lanthanated tungstens.
Zirconiated are still the best thing for high amperage AC. |
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| Back to top |
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| Ernie Leimkuhler |
Posted: Sat Jan 13, 2007 2:45 am |
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Guest
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In article
<qtUph.376454$Fi1.214583@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
Quote: why 2% lanth operate so funny ?? is it some sort of skinning effect with the
hf ? my torch would ignite like a blowtorch, i suspect from air somehow
getting sucked into the nozzle....??
No idea.
Tungstens are only made by a few companies in the world.
Most are in Russia, India and China.
Tungsten dust is toxic and so it is rarely processed in countries with
active environmental and health agencies.
How well tungstens are made seems to vary.
A lot of companies are just buying generic tungstens and rebranding them.
Quote: "Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-DA6136.06401112012007@news.west.earthlink.net...
In article
noBph.370429$Fi1.311283@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
a few months back i sold off most of the tunsgten i had (some pure and
some
thoriated reds) and got some new 2% lanthanated for doing dc and some
white
zirconiated for doing ac. however, the 2% lanth was working very odd in
my
machine, and from some recent articles online i just found the
zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on some
AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks
I have had a few weird 2% Lanthanated tungstens, where the arc danced
around.
I have never had that problem on 1.5% lanthanated tungstens.
Zirconiated are still the best thing for high amperage AC. |
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| Back to top |
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| Robert Ball |
Posted: Sat Jan 13, 2007 5:29 pm |
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Guest
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Depends also on the finish, ground or chemical finish.
Why are all tungstens toxic, not just the thoriated?
Ernie Leimkuhler wrote:
Quote: In article
qtUph.376454$Fi1.214583@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
why 2% lanth operate so funny ?? is it some sort of skinning effect with the
hf ? my torch would ignite like a blowtorch, i suspect from air somehow
getting sucked into the nozzle....??
No idea.
Tungstens are only made by a few companies in the world.
Most are in Russia, India and China.
Tungsten dust is toxic and so it is rarely processed in countries with
active environmental and health agencies.
How well tungstens are made seems to vary.
A lot of companies are just buying generic tungstens and rebranding them.
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-DA6136.06401112012007@news.west.earthlink.net...
In article
noBph.370429$Fi1.311283@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
a few months back i sold off most of the tunsgten i had (some pure and
some
thoriated reds) and got some new 2% lanthanated for doing dc and some
white
zirconiated for doing ac. however, the 2% lanth was working very odd in
my
machine, and from some recent articles online i just found the
zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on some
AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks
I have had a few weird 2% Lanthanated tungstens, where the arc danced
around.
I have never had that problem on 1.5% lanthanated tungstens.
Zirconiated are still the best thing for high amperage AC.
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| Kryptoknight |
Posted: Sat Jan 13, 2007 5:37 pm |
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Guest
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i believe tunsten is a toxic metal when consumed. see
http://www.atsdr.cdc.gov/tfacts186.html
thoriated is radioactive, making it even worse.
"Robert Ball" <rwballca@comcast.net> wrote in message
news:8cidncKb5tjf0jTYnZ2dnUVZ_oDinZ2d@comcast.com...
Quote: Depends also on the finish, ground or chemical finish.
Why are all tungstens toxic, not just the thoriated?
Ernie Leimkuhler wrote:
In article <qtUph.376454$Fi1.214583@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
why 2% lanth operate so funny ?? is it some sort of skinning effect with
the hf ? my torch would ignite like a blowtorch, i suspect from air
somehow getting sucked into the nozzle....??
No idea.
Tungstens are only made by a few companies in the world.
Most are in Russia, India and China.
Tungsten dust is toxic and so it is rarely processed in countries with
active environmental and health agencies.
How well tungstens are made seems to vary.
A lot of companies are just buying generic tungstens and rebranding them.
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-DA6136.06401112012007@news.west.earthlink.net...
In article
noBph.370429$Fi1.311283@bgtnsc05-news.ops.worldnet.att.net>,
"Kryptoknight" <kryptoknight@att.net> wrote:
a few months back i sold off most of the tunsgten i had (some pure and
some
thoriated reds) and got some new 2% lanthanated for doing dc and some
white
zirconiated for doing ac. however, the 2% lanth was working very odd in
my
machine, and from some recent articles online i just found the
zirconiated
stuff apparently does not work any better than the lanthanated stuff on
inverter machines.
so i just picked up some new stuff to try out:
2% ceriated 3/32" & 1/16"
1.5% lanthanated 3/32" & 1/16"
3% thoriated 3/32"
i'm gonna try ceriated on lower currents DC work, the lanthanated on
some AC
stuff (aluminum), and the thoriated on the larger DC stuff.
what should i expect from these tungstens (keeping in mind i run a esab
heliarc 161 unit)
thanks
I have had a few weird 2% Lanthanated tungstens, where the arc danced
around.
I have never had that problem on 1.5% lanthanated tungstens.
Zirconiated are still the best thing for high amperage AC.
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