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"Info on Sacrificial anodes for Corrosion prevention"



2005

Hi I'm doing a corrosion project on sacrificial anodes and I'm having trouble finding if they are expensive and cost efficient and if they are effective compared to the other methods of preventing corrosion.

thank you




How does this method prevent corrosion?
How effective is this method in corrosion prevention?
How expensive is this method of prevention?
How and where is this method of prevention used

Vanessa S.
student - Calgary, Alberta, Canada
^


2005

Well, I can see what you want my role to be in this partnership, Vanessa. My question is what will be your contribution to it? So far it seems limited to pasting the description of the project here, then putting your name on my work :-)

How about we go 50-50 and you answer two of the four questions, and then I'll try the other two?

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^


2005

Sacrificial anodes are more electronegative metals being used to protect a more important metal. Examples are zinc on steel (galvanised steel). Aluminium is also used to protect copper pipes and cylinders in domestic water systems where the aluminium prevents "Type 1" pitting. Aluminium or zinc has also been used to protect car bodies form corrosion by strapping a piece of the metal between the battery and the car chassis. There are also numerous examples of sacrificial anodes being used to protect major structures. If you now trawl the Internet, you will find out a lot more information about the technology and its costings.

trevor crichton
Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
^

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Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

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