Re: [CR] DC voltage to prevent corrosion

(Example: Production Builders:Frejus)

Date: Fri, 4 Sep 2009 15:48:00 -0400
To: <classicrendezvous@bikelist.org>
From: "John Betmanis" <johnb@oxford.net>
In-Reply-To: <433981.4835.qm@web111014.mail.gq1.yahoo.com>
References: <5D4373CD237B4DB2998E3C6F64426922@QWERTY28> <780420.62904.qm@web111015.mail.gq1.yahoo.com>
Subject: Re: [CR] DC voltage to prevent corrosion


At 10:04 AM 04/09/2009 -0700, Pablo Brena wrote:
>Hello Jon,
>
>Your statement: " a DC voltage can be used to prevent corrosion" kept me thinking... it might be worth value to design the electric circuit to help keeping the hideous rust away (I guess this is how Auto's electrical circuit works right??), even if it required to rectify modern hub dynamos AC into DC current.
>
>Would you be so kind as to give general design considerations?

There are both cathodic protection systems and electronic protection systems. The only area I know they are used with any success is in marine applications. They are also sold for cars, but I've never seen any evidence that they work in that application, so I doubt that it would work on a bike. See http://corrosion-doctors.org/Car/car-electronic-protection.htm You can Google lots more.

John Betmanis
Woodstock, Ontario
Canada