[python] Re: brazing aluminum ??
- From: George Durbridge <gdurbrid@xxxxxxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Mon, 24 Dec 2007 07:41:56 +1100
Steffen - the difference Ron quoted was 500 degrees Fahrenheit, not
Celsius.
Ron - are we sure they mean the temperature is less than the melting
point of aluminium by 500 degrees, or could they mean that it is 500
degrees, which is less than the melting point of aluminium? It's only a
matter of whether they put in a comma ...
Everyone - Merry Christmas and a happy new year.
On Sun, 2007-12-23 at 19:02 +0100, cimento@xxxxxx wrote:
> Do they braze with hot wax? Aluminium has a Melting Point about 600 to
> 700°C depending on alloys. 700-500=200!!!!! That's the point.
>
> Ciao Steffen
>
>
>
> Ronald Hongsermeier wrote:
> > The key is the melt point of the rod. They say there is no flux involved,
> > it is a metallurgical trick containing nine different metal alloys. They
> > say the melt point is c. 500 ° F lower than aluminum, that's what makes the
> > thing they do with the pop can on the video possible. I wish I could borrow
> > one of the airport fire dept.'s heat detectors to experiment with... Maybe
> > sometime on night shift sometime next year. <shrug>
> >
> > regards,
> > ron
> >
> >
> >
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: python@xxxxxxxxxxxxx
> > > Gesendet: 22.12.07 22:35:20
> > > An: <python@xxxxxxxxxxxxx>
> > > Betreff: [python] Re: brazing aluminum ??
> > >
> >
> >
> >
> > > Comments from a friend - It's possible but tricky:
> > > We actually did aluminum brazing at the course last year. It is possible,
> > > but VERY, VERY, ****VERY**** tricky. You must keep the flame moving
> > > steadily, watch the flux carefully, and feed the rod smoothly, in a
> > > non-stopping, sweeping motion. Heat, heat, watch flux, heat, watch flux,
> > > heat, flux melts, heat, try feeding rod, heat, rod melts, heat, keep rod
> > > moving, heat, flux is working, rod is flowing, GREAT, flow rod��.
> > > DOH!!!!!!!!!!!!!!!! Pile of *MISSING* Aluminum plate, along with a pile
> > > of aluminum that looks like an exploded pop can. HMMmmmmm, lets try
> > > again. 4 busted aluminum pop cans later, I am thinking I am mentally
> > > deficient. As I try to sneak my mess to the garbage can, a guy comes at
> > > me holding a melted, exploded pop can in his pliers and asks if I got it
> > > to work. I laughed and showed him my 6th attempt. We wandered around the
> > > class and determined that the instructor was the only one to be able to
> > > accomplish this task. We asked him to show us again, h
> > > e did and (HA
> > >
> > AA
> >
> > > AA-haaa), he turned the plate into chrapnel this time, too.
> > >
> > >
> > > I gave up.
> > >
> > >
> > > ----------------------------------------
> > >
> > > > Date: Tue, 18 Dec 2007 00:42:04 +0100
> > > > From: rwhongser@xxxxxx
> > > > To: python@xxxxxxxxxxxxx
> > > > Subject: [python] Re: brazing aluminum ??
> > > >
> > > > I don't want to contribute to off thread bloat, but the advertising
> > > > sentence was qualified: "Does the impossible! � Accomplishes many
> > > > repairs even after a welder says it can't be done stronger than welding
> > > > and even repairs oily or oxidized metals."
> > > >
> > > > I may try it out, if I can get alu tubing someplace more inexpensive
> > > > than OBI.
> > > >
> > > > If I do I'll let you know what I think and get a couple of opinions of
> > > > welder friends.
> > > >
> > > > cheers,
> > > > ron
> > > >
> > > >
> > > >
> > > > > -----Ursprüngliche Nachricht-----
> > > > > Von: python@xxxxxxxxxxxxx
> > > > > Gesendet: 17.12.07 21:29:33
> > > > > An: python@xxxxxxxxxxxxx
> > > > > Betreff: [python] Re: brazing aluminum ??
> > > > >
> > > > > Ad reads, does the impossiable,that should tell you something !kind
> > > > > of like the lens doctor a complete fruad !and I thought they had laws
> > > > > aginst false advertisments ?
> > > > >
> > > > >
> > > > > ----- Original Message ----
> > > > > From: brian smith
> > > > > To: python@xxxxxxxxxxxxx
> > > > > Sent: Monday, December 17, 2007 8:26:43 AM
> > > > > Subject: [python] brazing aluminum ??
> > > > >
> > > > > Things that sound too good to be true usually are.
> > > > >
> > > > > has anyone on this list had any experience with this type of product
> > > > > for aluminum frame construction?
> > > > >
> > > > > http://www.aluminumrepair.com/
> > > > >
> > > > > too bad there are no free lunches
> > > > >
> > > > > regards to all
> > > > > Brian
> > > > >
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