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Can anyone please answer this, and/or point me to a website
that gives some details ?
What is that yellowish finishing that is usually given to a
steel-based chassis for electronic products ? I assume that it is
electroplated on for rust protection and solderability.
Specifically, what is the plating material ? Tin ?
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Author: EeyoreDate: 18:25 27-07-07
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pawihte@yahoo.com wrote:
> Can anyone please answer this, and/or point me to a website
> that gives some details ?
>
> What is that yellowish finishing that is usually given to a
> steel-based chassis for electronic products ? I assume that it is
> electroplated on for rust protection and solderability.
> Specifically, what is the plating material ? Tin ?
Zinc. The colour is a passivation finish. In olden days it was Cadmium. You
won't get that now. Plenty of old drawings called up 'Cad & Pass'.
These days I use 'Zinc & clear'. Or actually more likely I use Zintec (tm)
electro-galavanised material.
Graham
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Author: John PopelishDate: 18:35 27-07-07
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pawihte@yahoo.com wrote:
> Can anyone please answer this, and/or point me to a website
> that gives some details ?
>
> What is that yellowish finishing that is usually given to a
> steel-based chassis for electronic products ? I assume that it is
> electroplated on for rust protection and solderability.
> Specifically, what is the plating material ? Tin ?
Perhaps zinc chromate:
http://www.epi.com/metal-finishes/zinc-chromates.html#EChromeYellowDye
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On Jul 28, 3:35 am, John Popelish <jpopel...@rica.net> wrote:
> pawi...@yahoo.com wrote:
> > Can anyone please answer this, and/or point me to a website
> > that gives some details ?
>
> > What is that yellowish finishing that is usually given to a
> > steel-based chassis for electronic products ? I assume that it is
> > electroplated on for rust protection and solderability.
> > Specifically, what is the plating material ? Tin ?
>
> Perhaps zinc
chromate:http://www.epi.com/metal-finishes/zinc-chromates.html#EChromeYellowDye
Thanks, everyone. Now I have some basis do some research
on the net.
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Author: Chris JonesDate: 19:14 27-07-07
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pawihte@yahoo.com wrote:
> Can anyone please answer this, and/or point me to a website
> that gives some details ?
>
> What is that yellowish finishing that is usually given to a
> steel-based chassis for electronic products ? I assume that it is
> electroplated on for rust protection and solderability.
> Specifically, what is the plating material ? Tin ?
It might be cadmium, but I don't really know for sure. I would suggest not
welding it nor eating off it.
Chris
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Author: Jasen BettsDate: 04:08 29-07-07
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On 2007-07-27, pawihte@yahoo.com <pawihte@yahoo.com> wrote:
> Can anyone please answer this, and/or point me to a website
> that gives some details ?
>
> What is that yellowish finishing that is usually given to a
> steel-based chassis for electronic products ? I assume that it is
> electroplated on for rust protection and solderability.
> Specifically, what is the plating material ? Tin ?
when I was working at a truck parts factory they called it gold
passivation, dunno if adjective or noun.
--
Bye.
Jasen
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Author: Stephen J. RushDate: 14:31 29-07-07
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On Sun, 29 Jul 2007 08:08:21 +0000, Jasen Betts wrote:
> On 2007-07-27, pawihte@yahoo.com <pawihte@yahoo.com> wrote:
>> Can anyone please answer this, and/or point me to a website
>> that gives some details ?
>>
>> What is that yellowish finishing that is usually given to a
>> steel-based chassis for electronic products ? I assume that it is
>> electroplated on for rust protection and solderability.
>> Specifically, what is the plating material ? Tin ?
>
> when I was working at a truck parts factory they called it gold
> passivation, dunno if adjective or noun.
An adjective, probably. Zinc chromate has that color, and costs a lot
less than gold. About the only place you'd find metallic gold in a truck
is as plating on electrical contacts in embedded computers.
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Author: cpemmaDate: 18:36 30-07-07
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"Jasen Betts" <jasen@free.net.nz> wrote in message
news:f8hhtl$mln$1@jasen.is-a-geek.org...
> On 2007-07-27, pawihte@yahoo.com <pawihte@yahoo.com> wrote:
>> Can anyone please answer this, and/or point me to a website
>> that gives some details ?
>>
>> What is that yellowish finishing that is usually given to a
>> steel-based chassis for electronic products ? I assume that it is
>> electroplated on for rust protection and solderability.
>> Specifically, what is the plating material ? Tin ?
>
> when I was working at a truck parts factory they called it gold
> passivation, dunno if adjective or noun.
>
As in these "Goldscrews"
http://www.screwfix.com/app/sfd/cat/cat.jsp?cId=A331379&ts=34348
It's chromate passivated, improves the corrosion resistance and looks nice.
But no Au involved.
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