Article View: sci.electronics
Article #19923Re: Rust Prevention (Cathodic Protection)
From: Alan Lorimer
Date: Fri, 14 Oct 1988 08:25
Date: Fri, 14 Oct 1988 08:25
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In article <1450@kodak.UUCP> ornitz@kodak.UUCP (barry ornitz) writes:
>In article <3596@s.cc.purdue.edu> aic@s.cc.purdue.edu (George A. Basar) writes:
>> I am looking for some pointers to information on the subject of
>>anodic/cathodic(terminology please) system of rust prevention/inhibition.
.
.
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>Similar questions to these were posted to rec.autos several months ago. I do
>not see how electrolytic protection (cathodic protection) is applicable to
>automobiles as they are not generally in a conductive or electrolytic
>environment.
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I don't think this is quite right - was not the whole reason for
switching cars from positive earth systems to negative earth systems
purely to provide a degree of cathodic protection for the bodywork, since
positive earth systems actually encouraged the vehicle to rust.
I remember a circuit which was designed to protect your vehicle:
_______________ _______________
| | | |
__|_ + 12V - _|__
_/ \__ |-------| _/ \__
|O------O-| |_______| |O------O-|
Someone else's car Your Car
Go on try it on your neighbour's car :-)
Regards,
Al.
--
____________________________________________________________________________
Alan G. Lorimer, Strathclyde University, 26 Richmond Street, Glasgow G1 1XH.
UUCP: ...!uunet!mcvax!ukc!strath-cs!al DARPA: al%cs.strath.ac.uk@ucl-cs
JANET: al@uk.ac.strath.cs
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arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!amdahl!pyramid!octopus!vsi1!altnet!uunet!mcvax!ukc!strath-cs!alShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!amdahl!pyramid!octopus!vsi1!altnet!uunet!mcvax!ukc!strath-cs!al From: al@cs.strath.ac.uk (Alan Lorimer) Newsgroups: sci.electronics Subject: Re: Rust Prevention (Cathodic Protection) Message-ID: <1236@stracs.cs.strath.ac.uk> Date: 14 Oct 88 08:25:20 GMT Reply-To: al@cs.strath.ac.uk (Alan Lorimer) Organization: Comp. Sci. Dept., Strathclyde Univ., Scotland. Lines: 50