Ed. note: before the internet existed, there was a time when "Sysops" (system operators) ran publics forums via dial-up modems and "BBS" (Bulletin Board System) software. Here is one such discussion from 1993.
Msg. #3593 in ** Ask Plater B**
Posted on 03/05/93 at 21:30:03
To: ALL From: SID TRYZBIAK
- ELECTROLESS NICKEL/IMMERSION GOLD I HAVE JUST INSTALLED A ELECTROLESS NICKEL TANK AND WHEN I MAKE IT UP, IT DOESN'T PLATE. IF I RUN DUMMY PANELS, IT SEEMS TO KICK OFF AND WORK BUT NOT ON ITS OWN. IS THIS NORMAL?
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Msg. #3595 in ** Ask Plater B**
Posted on 03/06/93 at 08:10:18
To: SID TRYZBIAK From: BERL STEIN
- Reply To 'ELECTROLESS NICKEL/IMMERSION GOLD'
I don't think so, Sid. What kind of parts are you trying to plate? What are the dummy plates made out of? If you are trying to metallize plastic, check that the activation step has been done properly. Whose electroless nickel bath are you using? Good luck, Plater B
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Msg. #3600 in ** Ask Plater B**
Posted on 03/07/93 at 10:39:14
To: SID TRYZBIAK From: KEN ROSENBLUM
- Reply To 'ELECTROLESS NICKEL/IMMERSION GOLD'
If you are plating brass, you will need to kick start the plating electrolytically for a few seconds.(or your chemistry may be out of balance)
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Msg. #6056 in ** Ask Plater B**
Posted on 01/18/95 at 00:31:16
To: ALL From: PAUL PETERSON
- Analysis of hypophosphite in E-Nickel In reading Wolgang Riedel's "Electroless Nickel Plating" I came upon an analysis on page 167 which I believe to be in error. "(5
- (0.1 X Vol. of thiosulphate)) X .5 = g/l of hypo." shouldn't the multiplication factor be 10.6? If anyone has this book please review this analysis and let me know what you think.
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Msg. #6061 in ** Ask Plater B**
Posted on 01/19/95 at 10:48:28
To: PAUL PETERSON From: TOM PULLIZZI
- Reply To 'Analysis of hypophosphite in E-Nickel'
i think the equation is ok for 50 ml of .1N iodine and a 100 ml sample. I don't know why the factor shouldn't be .53. the 10.6 factor is for a 5 ml sample.
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Msg. #6212 in ** Ask Plater B**
Posted on 02/14/95 at 22:10:55
To: ALL From: MIKE UETZ
- EN post dip has anyone heard of treating EN plate with a chromic acid dip to enhance corrosion resistance. We have tested some 2"x4" panels plated to 0.002" with medium phos. coating and a 15 second post plate dip in some used chromic acid anodizing solution and had good salt spray test results. I'm curious what the mechanism is for the improvement over non post dipped panels. Mike
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Msg. #6215 in ** Ask Plater B**
Posted on 02/15/95 at 02:13:48
To: MIKE UETZ From: TED MOONEY
- Reply To 'EN post dip'
Post-dips for EN are indeed a commonplace. Chromic acid is a good passivating solution for most anything, giving a controlled oxidation potential to the surface to eliminate "hot spots" and reduce the local corrosion potential.
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