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From:
John Burke <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Fri, 18 Aug 2017 13:10:22 +0000
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		Ahhhhhh tin lead......... rosin cored solder.......lol
		

		Sent from my iPad Pro
	





On Fri, Aug 18, 2017 at 3:59 AM +0700, "Decker, Scott UTAS" <[log in to unmask]> wrote:










Many years ago, and I do mean many, my dad and grandfather had a large HO train layout and we used what was then called, (and may still be) nickel-Silver rail. This was back when we would get these 3 foot lengths of rail and spike it down to wooden roadbed. I think I was brass with a nickel plating, but I don't know for sure. What I do know is, it soldered really well with plane old rosin core lead solder. I can still remember the smell of those hot soldering guns... :-) 

Scott Decker - Staff Engineer, PCB Design Services CID+ - Electronic Systems Center
UTC AEROSPACE SYSTEMS
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of George Wenger
Sent: Thursday, August 17, 2017 1:53 PM
To: [log in to unmask]
Subject: [External] Re: [TN] Soldering to 'Nickel-Silver'

Yea since it is a copper alloy German-Silver and Nickel-Silver do seem like crazy names since there is no silver in the alloy but a lot of times things get named for what they look like and when you look at something made from this alloy it has a nickel or silver color and not a copper color.


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Giamis, Andy
Sent: Thursday, August 17, 2017 4:47 PM
To: [log in to unmask]
Subject: Re: [TN] Soldering to 'Nickel-Silver'

Thanks George,
I'll play around a little and see what sticks.
Gotta love these crazy alloy names:  German-Silver, Nickel-Silver, etc.  And not a lick of silver in it.


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of George Wenger
Sent: Thursday, August 17, 2017 3:38 PM
To: [log in to unmask]
Subject: Re: [TN] Soldering to 'Nickel-Silver'

Andy,

I somewhat agree with Bev that some of the no-clean solder pastes and fluxes should allow you to solder to Nickel-Silver.  I disagree that is commonly referred to as German Silver.  Since he's from Canada it may commonly be referred to there and in Europe as German Silver but in my 40 years in telecommunication equipment soldering I've commonly heard it referred to as Nickel-Silver.

I also agree with Phil, any flux that contains zinc chloride and HCl should solder almost any metal.

You might also want to try soldering with a standard WSF and you should have success.

My other recommendation is to do solderability testing in your analysis lab and she what flux works

George

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian
Sent: Thursday, August 17, 2017 4:12 PM
To: [log in to unmask]
Subject: Re: [TN] Soldering to 'Nickel-Silver'

Andy,
This is commonly referred to as German Silver.  I have seen it often used for RF cans.  It should solder fine with your usual non-clean solder pastes.
However, will the can warp?  We set specific maximum sizes for different shapes of RF cans (not that the designers would always listen).  We also measured can warpage using shadow moiré.

Regards,
Bev Christian
HDP User Group

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Giamis, Andy
Sent: Thursday, August 17, 2017 3:38 PM
To: [log in to unmask]
Subject: [TN] Soldering to 'Nickel-Silver'

Hi Folks,
Has anyone had experience soldering to 'Nickel-Silver' 
This is a ternary alloy with approximately 60% Cu, 20% Ni, 20% Zn.

If so, are there any special considerations such as flux type, pre-tinning etc...



Best Regards,
Andy
Senior Failure Analysis Engineer
CommScope
2601 Telecom Pkwy
Richardson, TX, 75082, USA

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