Re: Weird Phenoms and Corrosion

[ilovell@smtpgw1.bathhe.ac.uk]

     I beleive they do a similar thing on ships to reduce corrosion. Every 
     so often they weld a plate of something like zinc (anode) to the hull 
     (cathode) a small electrical current can actually be measured between 
     the two plates (which I beleive is why a lot of cars went over to 
     neg.earth as this aslo slows down corrosion by reversing the currect 
     created during rusting). Also the same principle is used to stop 
     underground pipes from corroding which is where my knowlege on the 
     subject ends.


______________________________ Reply Separator _________________________________
Subject: Weird Phenoms and Corrosion
Author:  "GREAVES, AMNA" <AGREAVES@eng.pria.com> at internet-gw1
Date:    14/01/97 09:29


1. re:Weird Phenoms
You battery is good and you've tested the output from the alternator, yes ? 
(Could be the voltage regulator....)
     
2. Corrosion
I thought I'd mention this since it is winter, and such.  I have been told 
that if you take a hunk of Zinc and place it between the ground strap and 
the chassis you will reduce rate at which your car rusts.  The concept here, 
I think, is that because Zinc has a higher (insert chemistry term here for a 
metal that will oxidize faster becuase it has more available electrons to 
lose) that it will corrode rather than the body.  Since corrosion is aided 
by the input of energy (any energy, heat, electricity) you can reduce the 
corrosion due to the ground running throught the chassis by putting it 
through the zinc (you can also reduce winter corrosion by keeping the car in 
the cold at night, away from heat).  I had bought a Zinc plate at my local 
art store (they use it for etching) but never took the time to put it in.... 
Anyone else heard about this ?
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