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Comrade Col. Clamrod
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Plating Nickel on Chrome

08/24/2008 9:20 AM

The instructions from Caswell Plating are limited as to bath temperatures--they give current density as 1amp per 15sq.in. when plating nickel to copper amp 1amp per 1sq.in. when plating chrome, but nothing about plating the nickel on chrome--I'm wondering if anyone would care to suggest bath temperatures and/or their experience with nickel on chrome

Application is to copper and semiconductor material with purpose of minimizing resistence

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dadw5boys
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#1

Re: Plating Nickel on Chrome

08/25/2008 2:55 AM

The temp to plate nickle would be to high for chrome that why they don't do it.

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HarryBurt
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#2

Re: Plating Nickel on Chrome

08/25/2008 10:11 AM

Normal progression is copper, nickle, chrome. I've never heard of putting any plating over chrome. I suspect that if you did, you would have adhesion problems.

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Comrade Col. Clamrod
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#3
In reply to #2

Re: Plating Nickel on Chrome

08/25/2008 3:42 PM

Well, after chatting with Caswell Tech support, they tell me the bath temps are the same for their N15C Electrolitic Nickel and their DC15 Electrolitic Chrome @ 110F, but they aren't confident about adhesion either--I belive Chrome is a substitute for iron, since the people here do not want to make their own iron-plate solution, and no one seems to have any off-the-shelf...

Any suggestions for that?

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HarryBurt
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#6
In reply to #3

Re: Plating Nickel on Chrome

08/26/2008 8:34 AM

Henley's 20th Century Formulas, Processes, and Trade Secrets, a facinating book printed in the 40's (IIRC), includes a section on eloctroplating. I'll check it tonight and let you know if it has anything on plating iron.

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HarryBurt
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#8
In reply to #6

Re: Plating Nickel on Chrome

08/28/2008 4:05 PM

Sorry, nothing in Henley on this.

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Anonymous Poster
#4

Re: Plating Nickel on Chrome

08/25/2008 7:53 PM

I can't imagine why anyone would want to electroplate Nickel onto Chromium (no such thing as "Chrome"). Please tell us the need and the application.
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Anonymous Poster
#5
In reply to #4

Re: Plating Nickel on Chrome

08/25/2008 7:57 PM

Are you from somewhere other than America? Here, chrome is the usual term for chromium when being informal.
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Comrade Col. Clamrod
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#7

Re: Plating Nickel on Chrome

08/26/2008 4:28 PM

Further discussion with Caswell confirmed basic opinion expressed here What are you THINKING!?!

Actually, we are now considering Tin on Nickel

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