Hi Roger! The only issue I have found is sometimes the flux cored wire
becomes very heavily oxidized - I am still able to solder but have quite a
bit more "dross/floating oxide" than I normally experience. I have a desk
drawer full of solders I have accumulated from various points of the
universe, many which are 20-30 years old, and we are able to use them on
different projects as needed.

Dave Hillman
Rockwell Collins
[log in to unmask]




Roger Bilham <[log in to unmask]>@ipc.org> on 02/13/2002 01:48:31 AM

Please respond to Roger Bilham <[log in to unmask]>

Sent by:  TechNet <[log in to unmask]>


To:   [log in to unmask]
cc:

Subject:  Re: [TN] requalification of expired flux-core solder


As a follow-up question, has anyone ever come across flux cored wire
which has become functionally defective through age? Provided that the
temperature isn't excessive and the outer layers of the wire are
protected from surface oxidation, cored wire should last almost
indefinitley, shouldn't it?

Roger Bilham

In article <48359946794DD511BA3A00508BA5563F0ECE1A@MERCURY>, Ochenas,
Tom <[log in to unmask]> writes
>
>    Does anyone know of a method/standard for requalifying expired flux
>    core solder wire (62/36/2)?
>
>    The simpler the better...
>
>    Thanks In Advance,
>
>    Tom Ochenas
>    Process Engineering
>    Maxtek Components Corporation

--
Roger Bilham
Roger Bilham Consultancy
Tel: +44 (0)20 8467 8819
Fax: +44 (0)8700 548 613
Mobile +44 (0)7 941 122 446

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