Hi Dave and Netters,
Thank you very much for your feedback and laughs.
Well, this was my guess, one of those real pain to put in place.
So, let me book the lab and try to change margarine into butter for smoothest operations...
Thanks again and have a nice day.
Kind regards
sylvain
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey (EHCOE)
Sent: mardi 13 mars 2012 18:51
To: [log in to unmask]
Subject: Re: [TN] Soldering manganin wires?
Well, there's no margarine for error.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge
Sent: Tuesday, March 13, 2012 10:14 AM
To: [log in to unmask]
Subject: Re: [TN] Soldering manganin wires?
manganin ..sounds as difficult as to solder margarine wires
Inge
----- Original Message -----
From: "David D. Hillman" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, March 13, 2012 6:00 PM
Subject: Re: [TN] Soldering manganin wires?
> Hi Sylvain - we have a couple of applications where we solder to manganin
> wire and let's just say it not a fun task! You can use tin/lead solder but
> the key is that you need a highly highly aggressive flux to deal with the
> manganin surface oxides. I recommend you look at fluxes that are designed
> for soldering stainless steel or magnet wire - Indium, Kester, Alpha,
> etc. all of the solder suppliers offer flux formulations you can choose to
> use. I would also recommend that the flux chemistry be a water soluble
> formulation to aid in the removal of the flux residues/nonactivated flux
> to avoid possible corrosion issues due to inadequate cleaning. Good luck.
>
> Dave Hillman
> Rockwell Collins
> [log in to unmask]
>
>
>
>
> Sylvain Kaufmann <[log in to unmask]>
> Sent by: TechNet <[log in to unmask]>
> 03/13/2012 09:18 AM
> Please respond to
> TechNet E-Mail Forum <[log in to unmask]>; Please respond to
> Sylvain Kaufmann <[log in to unmask]>
>
>
> To
> <[log in to unmask]>
> cc
>
> Subject
> [TN] Soldering manganin wires?
>
>
>
>
>
>
> Dear TechNetters,
>
> One of our customer is designing and prototyping some cryogenic
> temperatures measurement assemblies.
>
> As part of the material used, the "temperature sensors" are supposed to be
> connected to the PCB with manganin wires.
> The PCB is a flex with ENIG finish.
>
> I never heard about this material before and found it was an alloy mixing
> 86% copper, 12% manganese, 2% nickel.
>
> I checked the TechNet archive as well as the internet, but was not
> successful in finding guidelines about soldering those wires.
> I found some words on NPL website about copper-manganese alloys : quote
> from website -> Joints between the copper manganese alloys and copper are
> made most effectively by welding in an atmosphere of argon, and by hard
> soldering if welding is impracticable.
>
> On the other hand, I found some papers from some physicists or some
> hobbyist video stating that manganin can be soldered with regular tin-lead
> solder (well, at least they did it on their proto apparatus)...
>
> Provided I can find only very few info and mostly not consistent, I turn
> my eyes on you experts out there.
>
> Does anyone have experience in soldering this material?
> Or more precisely, is this material solderable with some regular
> electronic solder alloys?
>
> As usual, thanks a lot in advance for your valuable input.
> Kind regards
> sylvain
> --------------------------------------------------------------------------------------------------
> Sylvain Kaufmann
> CERN - European Laboratory for Particle Physics
> Dpt : TE-MPE-EM
> Office : 160/1-026
> Tel : +41 22 767 37 02
> Fax : +41 22 766 87 77
> --------------------------------------------------------------------------------------------------
>
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