Hello all, I'm sure many people out there have solved this problem so hopefully someone can point me in the right direction. I have two wires I need to solder directly to a board I am designing. The wire is difficult to solder since its stainless steel. So to minimise assembly time and cost I'd like to crimp an end onto the wire that will then soldered in into a plated through-hole in the PCB. Does anyone know of such a product? Or is there a better way to get to the same result? Cheers.
Connecting wire to PCB
Started by ●April 13, 2005
Reply by ●April 13, 20052005-04-13
On Wed, 13 Apr 2005 12:54:24 -0400, the renowned James Morrison <spam1@emorrison.ca> wrote:>Hello all, > >I'm sure many people out there have solved this problem so hopefully >someone can point me in the right direction. > >I have two wires I need to solder directly to a board I am designing. >The wire is difficult to solder since its stainless steel. So to >minimise assembly time and cost I'd like to crimp an end onto the wire >that will then soldered in into a plated through-hole in the PCB. Does >anyone know of such a product?You might have reliability problems with a crimp joint to SS.>Or is there a better way to get to the same result? >Cheers.Plate the SS and solder it. Use special SS solder (and flux).. with caution. Weld the wire to something more solderable. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
Reply by ●April 13, 20052005-04-13
Spehro Pefhany wrote:> On Wed, 13 Apr 2005 12:54:24 -0400, the renowned James Morrison > <spam1@emorrison.ca> wrote: > > >>Hello all, >> >>I'm sure many people out there have solved this problem so hopefully >>someone can point me in the right direction. >> >>I have two wires I need to solder directly to a board I am designing. >>The wire is difficult to solder since its stainless steel. So to >>minimise assembly time and cost I'd like to crimp an end onto the wire >>that will then soldered in into a plated through-hole in the PCB. Does >>anyone know of such a product? > > > You might have reliability problems with a crimp joint to SS. > > >>Or is there a better way to get to the same result? >>Cheers. > > > Plate the SS and solder it. Use special SS solder (and flux).. with > caution. Weld the wire to something more solderable.For a few prototypes, you might try tinning the SS wire with solder and zinc chloride (acid) flux. Clean well then solder the tinned wire to the board with resin or aquious flux. I've had good luck soldering to the SS tabs on rechargable batteries this way.
Reply by ●April 13, 20052005-04-13
James Morrison <spam1@emorrison.ca> wrote:> I have two wires I need to solder directly to a board I am designing.Who/what says you "need" to solder them?> The wire is difficult to solder since its stainless steel.I strongly suggest you step back and make *very* sure you really have to use steel here, before you consider how to use it. One typically doesn't want to use steel for much of anything, in electronics. It's not just damn near impossible to solder to copper without killing nearby electronics components and rotting the board in the process --- it's also a rather bad electrical conductor. If you do have to use steel, I'd suggest you use screw terminals and/or press-on cable shoes instead of soldering. -- Hans-Bernhard Broeker (broeker@physik.rwth-aachen.de) Even if all the snow were burnt, ashes would remain.
Reply by ●April 13, 20052005-04-13
On Wed, 2005-04-13 at 20:15 +0000, Hans-Bernhard Broeker wrote:> James Morrison <spam1@emorrison.ca> wrote: > > > I have two wires I need to solder directly to a board I am designing. > > Who/what says you "need" to solder them? > > > The wire is difficult to solder since its stainless steel. > > I strongly suggest you step back and make *very* sure you really have > to use steel here, before you consider how to use it.Yes, unfortunately stainless steel is required for this application. I would avoid it if at all possible.> One typically doesn't want to use steel for much of anything, in > electronics. It's not just damn near impossible to solder to copper > without killing nearby electronics components and rotting the board in > the process --- it's also a rather bad electrical conductor. > > If you do have to use steel, I'd suggest you use screw terminals > and/or press-on cable shoes instead of soldering.That is a brilliant idea. Thanks. Its so obvious once you know. Cheers.
Reply by ●April 13, 20052005-04-13
On Wed, 13 Apr 2005 12:54:24 -0400, James Morrison <spam1@emorrison.ca> wrote:>Hello all, > >I'm sure many people out there have solved this problem so hopefully >someone can point me in the right direction. > >I have two wires I need to solder directly to a board I am designing. >The wire is difficult to solder since its stainless steel. So to >minimise assembly time and cost I'd like to crimp an end onto the wire >that will then soldered in into a plated through-hole in the PCB. Does >anyone know of such a product? > >Or is there a better way to get to the same result? >If you use the right flux, then soldering stainless steel is no problem. Look at http://www.sra-solder.com/fluxes.htm for some suitable fluxes. Regards Anton Erasmus
Reply by ●April 13, 20052005-04-13
James Morrison wrote:> Hello all, > > I'm sure many people out there have solved this problem so hopefully > someone can point me in the right direction. > > I have two wires I need to solder directly to a board I am designing. > The wire is difficult to solder since its stainless steel. So to > minimise assembly time and cost I'd like to crimp an end onto the wire > that will then soldered in into a plated through-hole in the PCB. Does > anyone know of such a product? > > Or is there a better way to get to the same result?You will need an acid based flux which will enable you to flow solder around the wire strands. Something we have to do where I work quite a lot. Unfortunately I cannot recall the name on the yellow pot with the red lid but I can look for you tomorrow. -- ******************************************************************** Paul E. Bennett ....................<email://peb@amleth.demon.co.uk> Forth based HIDECS Consultancy .....<http://www.amleth.demon.co.uk/> Mob: +44 (0)7811-639972 Tel: +44 (0)1235-811095 Going Forth Safely ....EBA. http://www.electric-boat-association.org.uk/ ********************************************************************
