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Soldering pure nickel wire




Does anyone know how to solder NICKEL ALLOY 201 WIRE (High purity Nickel constantan), on 1 once copper finished, gold plated pads?
(Maximum soldering temperature 371 °C , Medium density circuit board)
1. What type of flux should I use? (Should be non corrosive)
2. What is the best method to clean and tin this type of wire?

(Appears to have excessive nickel oxide on the surface.)

Louis McIntyre
sensing equipment mfgr. - Billerica, Massachusetts
2003


I have never come across this exact problem. See if this helps, try clean the nickel wire in a 10% HCl solution to remove the excess oxidation. The flux you need will have to be highly activate or even an acid flux.

Karl Weyermann
- Lebanon, Kentucky
2003




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