Our stainless soldering application was a drain wire on a thin stainless foil for a transformer shield. The special flux was VERY active and required lots of washing to neutralize the flux. We soldered it with 63/37 or SAC305 I think. Oh, that is interesting... We don't have any 63/37 or SAC305 that is not cored with flux. So it sounds like we were actually creating quite the chemistry project. Starting research and testing with non-flux core solder.
Thanks for triggering a wake-up call.
Phil
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Goodyear, Patrick
Sent: Monday, October 01, 2012 11:06 AM
To: [log in to unmask]
Subject: Re: [TN] soldering stainless steel
When we solder stainless we typically silver solder or silver braze the stainless, possible solution would be to silver braze a pad on the stainless then solder using Sn-Pb to the board.
Pat
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Paul Edwards
Sent: Friday, September 28, 2012 2:12 PM
To: [log in to unmask]
Subject: Re: [TN] soldering stainless steel
Should be able to solder directly to iron in S/S as long as there is no thick passivation layer or surface chemical enhancement....
Paul
Paul Edwards
Process/Quality Engineering
Surface Art Engineering
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Friday, September 28, 2012 10:33 AM
To: [log in to unmask]
Subject: Re: [TN] soldering stainless steel
Perhaps a nickel under plate?
Victor,
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of McGrath, Jim
Sent: Friday, September 28, 2012 12:00 PM
To: [log in to unmask]
Subject: Re: [TN] soldering stainless steel
Preplate the solder area with Sn or SnPb. You may need a copper underplate.
Jim McGrath
Strategic Marketing Manager
TE Consumer Devices
Cell: 630-244-3872
Email: [log in to unmask]
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Torsten Hagge
Sent: Friday, September 28, 2012 10:17 AM
To: [log in to unmask]
Subject: [TN] soldering stainless steel
Hi all,
has anybody experience with soldering stainless steel parts directly on a PCB? What solder process work fine?
Application is a medical sensor with body contacts.
Torsten
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