Imagine, imanganin. Wife's cousin sings about it here. http://www.youtube.com/watch?v=QVZRpNWR6fM Inge, I am sure you have heard her sing over there. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Sent: Tuesday, March 13, 2012 12:14 PM 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] ______________________________________________________________________