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Electroplating. Nicole Porreca. Electroplating- The processed used to cover zinc with copper in making coinage involves using direct-current (DC) electricity, which causes redox reactions to occur between the metal and non-metal solutions. http://www.finishing.com/faqs/howworks.html.

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electroplating

Electroplating

Nicole Porreca

slide2
Electroplating- The processed used to cover zinc with copper in making coinage involves using direct-current (DC) electricity, which causes redox reactions to occur between the metal and non-metal solutions.

http://www.finishing.com/faqs/howworks.html

plating process

Electroplating needs a power source, like a battery or power supply.

  • The power puts electrons where the reduction occurs, or cathode.
  • The main source of electrons any electrochemical process in the anode.
  • The anode is usually made with the metal to be plated.
  • The cations in the metal are reduced, removed, and put on the object attached to the cathrode.
  • The metal ions at the anode are then oxidized and dissolve into the plating solution.

This picture shows on of the processes in electroplating.

Plating Process
  • www.siriowire.com/immagini/electroplating.jpg
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Plating bonds to the surface with a metallic bond on most of the material’s surface.

  • This is convenient because the finish is attached on to the object.

This car has a coating on top of it, using electroplating to protect the outside from weathering and other harmful things.

www.exlcars.com/images/car1.jpg

slide5

Electroplating is used in order to protect the object from corrosion, water, and other substances that could harm the object.

http://electroplating-process.blogspot.com/

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Examples:

  • The copper coating on the penny

www1.istockphoto.com/file_thumbview_ 

approve/2..

  • The metal coating on a bike

uwadmnweb.uwyo.edu/oap/images/atlas% 

20bike.gif

  • The coating on a car

www.sftravel.com/images/limousines/san- franci... 

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Uses for electroplating:

  • To seal cans for food

http://wiki.answers.com/Q/Name_the_uses_for_electroplating

  • Creating alloys
  • Making hollow gold jewelry

http://www.finishing.com/170/53.shtml

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Discussion Questions:

  • What is the definition of electroplating?
  • In order to electroplate, what is needed for the process to work?