[python] Re: brazing aluminum ??
- From: Ronald Hongsermeier <rwhongser@xxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Sat, 22 Dec 2007 23:57:48 +0100
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, he did
> and (HAAA
> 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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