On Wed, 10 May 2023 13:44:31 -0700, Bob La Londe <none@none.com99>
wrote:
On 5/10/2023 1:33 PM, Snag wrote:
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide ? I
have some brazed boring bars (for my boring head) that are chewed up ,
and a stash of high quality solid carbide router bits ...
I have regular brazing rod with and without flux , regular brazing
flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I thought
you were the one talking about brazing carbide for a glass blower or
something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration tech
said he has better luck with a turbo torch with just air instead of OA.
It sounds like the OA torch did not have the needed total BTUs per
second to get the assembly up to brazing temperature. The OA may also
have been too hot in one place. From what I've read, for OA, one
would use a rosebud torch. I always used acetylene-air or
propane-air. Sometimes I build a muffle from stacked fire bricks.
Joe Gwinn
On 5/10/2023 1:33 PM, Snag wrote:
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide ? I
have some brazed boring bars (for my boring head) that are chewed up
, and a stash of high quality solid carbide router bits ...
I have regular brazing rod with and without flux , regular brazing
flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I thought
you were the one talking about brazing carbide for a glass blower or something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration
tech said he has better luck with a turbo torch with just air instead
of OA.
Sorry that's all I got.
On 10/05/2023 21:44, Bob La Londe wrote:
On 5/10/2023 1:33 PM, Snag wrote:When I've used Silphos rod for brazing copper I've just used the likes
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide ? I
have some brazed boring bars (for my boring head) that are chewed up
, and a stash of high quality solid carbide router bits ...
I have regular brazing rod with and without flux , regular brazing
flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I thought
you were the one talking about brazing carbide for a glass blower or
something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration
tech said he has better luck with a turbo torch with just air instead
of OA.
Sorry that's all I got.
of a Benzomatic/Rotherberger propane/MAPP torch and no problem at all
getting it to the right temperature even for larger tube like 15mm
plumbing tube. I tried to instruct someone else and she was like a deer
in the headlight lights and overheated it even with one of those as she
was concentrating all the heat in one spot, got it done in the end
though once she got used to it. I have in the past used OA for soft
soldering as it gave me better control but you need to know how to move
the torch to control and get the heat where required.
On 5/10/2023 1:33 PM, Snag wrote:
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide ? I
have some brazed boring bars (for my boring head) that are chewed up ,
and a stash of high quality solid carbide router bits ...
I have regular brazing rod with and without flux , regular brazing
flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I thought
you were the one talking about brazing carbide for a glass blower or something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration tech said he has better luck with a turbo torch with just air instead of OA.
Sorry that's all I got.
On 5/10/2023 5:17 PM, David Billington wrote:
On 10/05/2023 21:44, Bob La Londe wrote:I've done a lot of brazing using the prefluxed brazing rod and silphos.
On 5/10/2023 1:33 PM, Snag wrote:When I've used Silphos rod for brazing copper I've just used the likes
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide ?
I have some brazed boring bars (for my boring head) that are chewed
up , and a stash of high quality solid carbide router bits ...
I have regular brazing rod with and without flux , regular
brazing flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I thought
you were the one talking about brazing carbide for a glass blower or
something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration
tech said he has better luck with a turbo torch with just air instead
of OA.
Sorry that's all I got.
of a Benzomatic/Rotherberger propane/MAPP torch and no problem at all
getting it to the right temperature even for larger tube like 15mm
plumbing tube. I tried to instruct someone else and she was like a
deer in the headlight lights and overheated it even with one of those
as she was concentrating all the heat in one spot, got it done in the
end though once she got used to it. I have in the past used OA for
soft soldering as it gave me better control but you need to know how
to move the torch to control and get the heat where required.
I have 2 OA torch setups, a Victor Journeyman and a Uniweld. For both I
use a "0" welding tip with 5# oxy and 5# acetylene. I prefer neutral
flame color.
For copper to copper and copper to brass I use the silphos moving the flametip slowly along the weld path. When it gets red and not yet cherry
I start dippin and movin. I haven't burned through I think due to the
fact I don't stay in one place with the flame tip.
For steel to steel or steel to anything else I use the prefluxed brazing
rod. I don't know the composition but it looks like brass or brass
alloy. I get a spot almost yellow before I dip the rod. If you get the temp right you can lay the rod down in the path of the tip and it will
flow nicely.
I've had good luck with these methods. YMMV
Steve
On 5/10/2023 5:53 PM, shiggins wrote:
On 5/10/2023 5:17 PM, David Billington wrote:
On 10/05/2023 21:44, Bob La Londe wrote:I've done a lot of brazing using the prefluxed brazing rod and silphos.
On 5/10/2023 1:33 PM, Snag wrote:When I've used Silphos rod for brazing copper I've just used the
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide
? I have some brazed boring bars (for my boring head) that are
chewed up , and a stash of high quality solid carbide router bits ... >>>>> I have regular brazing rod with and without flux , regular
brazing flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I
thought you were the one talking about brazing carbide for a glass
blower or something like that a while back. Now I am all confused.
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in
place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration
tech said he has better luck with a turbo torch with just air
instead of OA.
Sorry that's all I got.
likes of a Benzomatic/Rotherberger propane/MAPP torch and no problem
at all getting it to the right temperature even for larger tube like
15mm plumbing tube. I tried to instruct someone else and she was
like a deer in the headlight lights and overheated it even with one
of those as she was concentrating all the heat in one spot, got it
done in the end though once she got used to it. I have in the past
used OA for soft soldering as it gave me better control but you need
to know how to move the torch to control and get the heat where
required.
I have 2 OA torch setups, a Victor Journeyman and a Uniweld. For both
I use a "0" welding tip with 5# oxy and 5# acetylene. I prefer
neutral flame color.
For copper to copper and copper to brass I use the silphos moving the
flametip slowly along the weld path. When it gets red and not yet
cherry I start dippin and movin. I haven't burned through I think due
to the fact I don't stay in one place with the flame tip.
For steel to steel or steel to anything else I use the prefluxed
brazing rod. I don't know the composition but it looks like brass or
brass alloy. I get a spot almost yellow before I dip the rod. If
you get the temp right you can lay the rod down in the path of the
tip and it will flow nicely.
I've had good luck with these methods. YMMV
Steve
Gee , thanks guys for all the responses ... I guess I should have
been more specific on the information I was seeking . I was looking
for information on filler rod composition and type of flux to use .
On 11/05/2023 05:23, Snag wrote:
On 5/10/2023 5:53 PM, shiggins wrote:
On 5/10/2023 5:17 PM, David Billington wrote:
On 10/05/2023 21:44, Bob La Londe wrote:I've done a lot of brazing using the prefluxed brazing rod and silphos.
On 5/10/2023 1:33 PM, Snag wrote:When I've used Silphos rod for brazing copper I've just used the
Or anyone else with pertinent information ...
Did I see you post something a while back about brazing carbide >>>>>> ? I have some brazed boring bars (for my boring head) that are
chewed up , and a stash of high quality solid carbide router bits ... >>>>>> I have regular brazing rod with and without flux , regular
brazing flux , and phosphor bronze TIG filler .
It wasn't me. At least not in a meaningful or useful way. I
thought you were the one talking about brazing carbide for a glass
blower or something like that a while back. Now I am all confused. >>>>>
The toughest thing I ever brazed was refrigeration lines with self
fluxing silvphos15. I did it with OA and kept blowing out lines in >>>>> place. In the end I made the assembly on the welding table and
connected it in with flair fittings. More recently a refrigeration >>>>> tech said he has better luck with a turbo torch with just air
instead of OA.
Sorry that's all I got.
likes of a Benzomatic/Rotherberger propane/MAPP torch and no problem
at all getting it to the right temperature even for larger tube like
15mm plumbing tube. I tried to instruct someone else and she was
like a deer in the headlight lights and overheated it even with one
of those as she was concentrating all the heat in one spot, got it
done in the end though once she got used to it. I have in the past
used OA for soft soldering as it gave me better control but you need
to know how to move the torch to control and get the heat where
required.
I have 2 OA torch setups, a Victor Journeyman and a Uniweld. For both
I use a "0" welding tip with 5# oxy and 5# acetylene. I prefer
neutral flame color.
For copper to copper and copper to brass I use the silphos moving the
flametip slowly along the weld path. When it gets red and not yet
cherry I start dippin and movin. I haven't burned through I think due
to the fact I don't stay in one place with the flame tip.
For steel to steel or steel to anything else I use the prefluxed
brazing rod. I don't know the composition but it looks like brass or
brass alloy. I get a spot almost yellow before I dip the rod. If
you get the temp right you can lay the rod down in the path of the
tip and it will flow nicely.
I've had good luck with these methods. YMMV
Steve
Gee , thanks guys for all the responses ... I guess I should have
been more specific on the information I was seeking . I was looking
for information on filler rod composition and type of flux to use .
On the subject of flux I was told regarding silver soldering inserts to
use a more active flux intended for stainless steel rather than one
intended for steel.
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