I have been practicing and practicing on scraps of aluminum window frame
material. The supposedly secret is to use a stainless steel brush and
to heat the material to the point that it will melt the rod. I'm a
pretty good welder, and smugly thought I was doing great - until I on
purpose "broke" some of the welded joints (didn't take much), and
discovered that it was just adhering to the surface and was no better
than an epoxy glue.
I found the only way to get a good weld is to heat the extrusions to the
point that the parent material actually melts. More often than not it
results in deformation of the window extrusion. I've decided to use a
mechanical repair on the valuable window frame I need to repair.
BTW, I used Durafix, available http://durafix.com/ . They all seem to
be the same (Alumaloy, muggyweld, durafix, alumiweld)
RJ
'65 Caravel
Jim Dunmyer wrote:
>
> I bought some of that "aluminum welding rod" at a flea market but
> haven't yet had a chance to try it. It sure looks like it'd work; the
> trick is to have the parent metal clean and heat IT so the solder melts
> when applied to it, not to melt the solder with the torch itself.
>
> <<Jim>>
>
> asbestos wrote:
> >
> > I have seen and used some low melt solders (400F) they say they work with Al
> > and can easily be melted with a propane torch. Has anyone been bold (of
> > foolish) enough to try these?
> >
> > You might be able to glue on a patch but I can't give you an sound advice
> > > on what kind of glue or contact cement to use.
> > >
> > > Roy Lashway
> > >
>
> --
>
> <<http://www.oldengine.org/members/jdunmyer>>
> <<[EMAIL PROTECTED]>>
> <<lower SE Michigan, USA>>
> <<mailto:[EMAIL PROTECTED]>>
