John Parsons said:

>We are quoting on a job for which we have been provided very little
>information.  We do know that a 0.030 aluminum wire must be "soldered" to a
>trace on the board.  We are told that the finish "looks" like tin/lead.
>
>My question,  is it possible to solder an aluminum wire to tin/lead, and if
>"YES" using what type of solder.  If "NO" what is the likely finish on this
>board.

How about "MAYBE"?

I've seen copper wires soldered to aluminum tabs using a very active flux
core wire solder made by Nihon Almit.

Aluminum has a very tenacious oxide coating, but if it is reduced, tin-lead
will wet it, I believe.

This may be an old address, but try these people who used to sell Almit:

Seika Corporation
20000 Mariner Ave., #100
Torrance, CA 90503
213-373-0404

This is by no means an endorsement of interconnecting boards with aluminum
wire. Sheesh.



Jerry Cupples
Interphase Corporation
Dallas, TX USA
http://www.iphase.com

Jerry Cupples - [log in to unmask]
Interphase Corporation
13800 Senlac Dr.
Dallas TX 75234
(214) 654-5150
(214) 654-5500 FAX


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