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'[OT]: Looking for good info on doing blazing work?'
2003\07\21@041339 by SM Ling

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Need to do some blazing work on an  antenna gounding.

I learned from Farnell catalogue that Taymar and Parasene are 2 names for
the Butane gas and some of the tools.  There are various kind of silver rods
and also miniature blow torch.  Can someone provide a link to some
introductory infomation or FAQ so I could make more sense out of the
catalogue offerings?   and also on the steps and precautions I should
follow.

Google has not been returning good results, probably due to my choice of
terms.

Thanks in advance.

Cheers, Ling SM

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2003\07\21@042826 by hael Rigby-Jones

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> -----Original Message-----
> From: SM Ling [SMTP:spam_OUTipal11TakeThisOuTspamSINGNET.COM.SG]
> Sent: Monday, July 21, 2003 9:40 AM
> To:   .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
> Subject:      [OT]: Looking for good info on doing blazing work?
>
> Need to do some blazing work on an  antenna gounding.
>
> I learned from Farnell catalogue that Taymar and Parasene are 2 names for
> the Butane gas and some of the tools.  There are various kind of silver
> rods
> and also miniature blow torch.  Can someone provide a link to some
> introductory infomation or FAQ so I could make more sense out of the
> catalogue offerings?   and also on the steps and precautions I should
> follow.
>
> Google has not been returning good results, probably due to my choice of
> terms.
>
That's because the process is called "brazing", not blazing.

Regards

Mike


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2003\07\21@044318 by SM Ling

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Thanks.  These two links look good, maybe paper-library has something better
to offer than the internet .

www.metalwebnews.com/howto/gtwelding.html
http://www.metalwebnews.com/howto/gasweld/gasweld.html

Ling SM
> >
> That's because the process is called "brazing", not blazing.

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2003\07\21@094447 by DAVE L

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try this
http://www.machinist.org/army_welding/

At 05:08 PM 7/21/03 +0800, you wrote:

{Quote hidden}

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2003\07\21@101145 by Lawrence Lile
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face
When I did brazing, it was with an oxyacetylene torch.  If I am not
mistaken, a simple butane torch doesn't get hot enough. Brazing is not the
easiest skill, I would rate it harder than soldering (remember how hard
that was at first?).  Your first attempt is likely to be a mess.  Brazing
works best if the parts you are connecting fit very snugly, you end up
spending more time preparing the two pieces than actually fastening them,
for a one-off.

You'll spend a lot less money, and also burn down less houses, if you just
take the part to a welding shop.  Any competent welding shop can also
braze.  Last time I did something like this it costs $10 or so for a small
weld.


-- Lawrence Lile





SM Ling <.....ipal11KILLspamspam.....SINGNET.COM.SG>
Sent by: pic microcontroller discussion list <EraseMEPICLISTspam_OUTspamTakeThisOuTMITVMA.MIT.EDU>
07/21/2003 04:08 AM
Please respond to pic microcontroller discussion list


       To:     PICLISTspamspam_OUTMITVMA.MIT.EDU
       cc:
       Subject:        Re: [OT]: Looking for good info on doing blazing work?


Thanks.  These two links look good, maybe paper-library has something
better
to offer than the internet .

www.metalwebnews.com/howto/gtwelding.html
http://www.metalwebnews.com/howto/gasweld/gasweld.html

Ling SM
> >
> That's because the process is called "brazing", not blazing.

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2003\07\21@105759 by hael Rigby-Jones

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> -----Original Message-----
> From: Lawrence Lile [SMTP:@spam@llileKILLspamspamSALTONUSA.COM]
> Sent: Monday, July 21, 2003 3:10 PM
> To:   KILLspamPICLISTKILLspamspamMITVMA.MIT.EDU
> Subject:      Re: [OT]: Looking for good info on doing blazing work?
>
> When I did brazing, it was with an oxyacetylene torch.  If I am not
> mistaken, a simple butane torch doesn't get hot enough.
>
Butane isn't really useable, but you don't need a full oxy-acetylene kit for
small brazing jobs.  You can get Propane or MAPP gas kits that have a high
enough temperatures.


> Brazing is not the
> easiest skill, I would rate it harder than soldering (remember how hard
> that was at first?).  Your first attempt is likely to be a mess.  Brazing
> works best if the parts you are connecting fit very snugly, you end up
> spending more time preparing the two pieces than actually fastening them,
> for a one-off.
>
I have to admitt that I never had much of a problem with brazing.  I used to
use flux filled rods, and as long as the joint was reasonably clean it
flowed very well.

> You'll spend a lot less money, and also burn down less houses, if you just
> take the part to a welding shop.  Any competent welding shop can also
> braze.  Last time I did something like this it costs $10 or so for a small
> weld.
>
Sound advice if the application is a one off, or just a few off.  OTOH it's
a handy skill to learn (along with welding).

Mike


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2003\07\21@112923 by Spehro Pefhany

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At 04:39 PM 7/21/2003 +0800, you wrote:
>Need to do some blazing work on an  antenna gounding.

Lots of good information on brazing here:

(not blazing, and I've even seen it spelt "braising" in a newspaper)

http://www.handyharmancanada.com/

It's not difficult at all, a propane torch is enough, BUT you have to
have the parts scrupulously clean, use the right flux and brazing alloys,
and get the parts hot enough, but not too hot.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
spamBeGonespeffspamBeGonespaminterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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2003\07\22@151127 by Peter L. Peres

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> Need to do some blazing work on an  antenna gounding.

Maybe look for brazing ? The torch must be available locally, it is used a
lot for air conditioner and refrigeration equipment installation.

Does it have to be silver ? If not, the alloy can be obtained with the
torch (the same used for brazing a/c copper plumbing). All brazing alloys
contains smoe silver afaik.

Brazing is defined as a heat based part joining operation that involves
temperatures between 500 and 900 degrees C and does not involve melting of
either part metal (but the alloy partially alloys with the parts). I hope
that this is what you're after. Soldering is defined as above but lower
temperature and the solder does not alloy with the parts. Take these
definitions with a grain of salt, I did not look in the books this time.

Peter

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