The day will be even nicer after you read this one: <https://www.facebook.com/home.php#> A neutron walked into a bar and asked, "How much for a drink?" The bartender replied, "For you, no charge." Inge On 14 March 2012 11:02, Sylvain Kaufmann <[log in to unmask]> wrote: > 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 > > > -------------------------------------------------------------------------------------------------- > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > [log in to unmask] > > ______________________________________________________________________ > > > > > > > > ______________________________________________________________________ > > This email has been scanned by the Symantec Email Security.cloud service. > > For more information please contact helpdesk at x2960 or > [log in to unmask] > > ______________________________________________________________________ > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. 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