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Posted by Andrew Mawson on March 17, 2007, 1:28 pm
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>
> Andrew Mawson wrote:
> >
> >>i need to join type-k thermocouple 24ga wire. type-k consists of
one
> >
> > lead
> >
> >>Nickel-Chromium (Ni-Cr) and the other lead Nickel-Aluminum
(Ni-Al).
> >>
> >>i need to tac Ni-Cr to NI-Cr, and Ni-Al to Ni-Al
> >>
> >>can i tac using TIG and argon?
> >>
> >>
> >
> >
> > I do it in an oxy-acteylene flame - dead easy
> >
> > AWEM
> >
> >
> A little more explination here? Just OA torch with tiny tip? Have
you
> done it with the #24 wire? Held in a fixture? Wires twisted?
Twist the relatively clean wires together (just to stop them moving
apart) and put the tip of the twist into the reducing cone of the
flame briefly until a very small ball appears, then withdraw.
Depending on the wire thickness and flame size it can take from the
briefest dip in/out to a second or so. I usually hold the wire by hand
and dip it into the flame, but I have held the wire an inch or too
from the end in a small vice and brought the torch up to it.
AWEM
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