O/A welding question: tip size

Morgans wrote:

too much oxygen
--
Jim in NC


Hello Jim - If I simply reduce the O2 at the handle, I'll get a
carburizing flame, right? I need a neutralized flame - MIke

"mhorowit" wrote in message
ups.com...

Morgans wrote:

too much oxygen
--
Jim in NC


Hello Jim - If I simply reduce the O2 at the handle, I'll get a
carburizing flame, right? I need a neutralized flame - MIke

This group has had many good descriptions of how to get the proper flame;
you might want to look it up. Yes, it should be neutral.

To give the short version, the inner flame should have a soft, feathered
edge, not a sharp, defined edge, and it should be a "quiet" flame.

If it makes soot, there is not enough O. If it burns the metal, (sparkles)
there is too much O.

You might need to move faster, take the flame further from the work, get the
filler metal in there faster, so it will get to the business of melting, or
even take the flame away for a second, every few seconds.
--
Jim in NC

Morgans wrote:
"mhorowit" wrote in message
ups.com...

Morgans wrote:

too much oxygen
--
Jim in NC


Hello Jim - If I simply reduce the O2 at the handle, I'll get a
carburizing flame, right? I need a neutralized flame - MIke

This group has had many good descriptions of how to get the proper flame;
you might want to look it up. Yes, it should be neutral.

To give the short version, the inner flame should have a soft, feathered
edge, not a sharp, defined edge, and it should be a "quiet" flame.

If it makes soot, there is not enough O. If it burns the metal, (sparkles)
there is too much O.

You might need to move faster, take the flame further from the work, get the
filler metal in there faster, so it will get to the business of melting, or
even take the flame away for a second, every few seconds.
--
Jim in NC


Jim - I know how to make a neutral flame. I was just trying to figure
how reducing O2 would help since if that's all I did, the flame would
no longer be neutral. So I guess I need to follow your last para.
Thanks, Mike

"mhorowit" wrote in message
ups.com...
|
| Morgans wrote:
| "mhorowit" wrote in message
| ups.com...
|
| Morgans wrote:
|
| too much oxygen
| --
| Jim in NC
|
|
| Hello Jim - If I simply reduce the O2 at the handle, I'll get a
| carburizing flame, right? I need a neutralized flame - MIke
|
| This group has had many good descriptions of how to get the proper
flame;
| you might want to look it up. Yes, it should be neutral.
|
| To give the short version, the inner flame should have a soft,
feathered
| edge, not a sharp, defined edge, and it should be a "quiet" flame.
|
| If it makes soot, there is not enough O. If it burns the metal,
(sparkles)
| there is too much O.
|
| You might need to move faster, take the flame further from the work,
get the
| filler metal in there faster, so it will get to the business of
melting, or
| even take the flame away for a second, every few seconds.
| --
| Jim in NC
|
|
| Jim - I know how to make a neutral flame. I was just trying to figure
| how reducing O2 would help since if that's all I did, the flame would
| no longer be neutral. So I guess I need to follow your last para.
| Thanks, Mike
|

Just curious! Are you using the J-57 aircraft torch?

--
Jarhead




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Jarhead wrote:

Just curious! Are you using the J-57 aircraft torch?

--
Jarhead




Nope - an old lightweight Smith handle with MW 100 series tips.
I've discovered that the only standard description across tips is the
orifice opening, so that's why I'm not using tip names. - MIke

mhorowit wrote:

Jarhead wrote:

Just curious! Are you using the J-57 aircraft torch?

--
Jarhead





Nope - an old lightweight Smith handle with MW 100 series tips.
I've discovered that the only standard description across tips is the
orifice opening, so that's why I'm not using tip names. - MIke


Might I ask if there is a reason for holding 2 psi?

That seems a tad low...

"cavelamb" wrote

Might I ask if there is a reason for holding 2 psi?

That seems a tad low...

I was wondering the same thing. I usually go with around 32 Oxy, and 7
Acet. I am surprised he could get a neutral flame with those settings, but
he claims to know what a neutral flame is, and that he is getting it. I
wonder if his gauges are off...
--
Jim in NC