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Electroplating

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

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  1. Electroplating Nicole Porreca

  2. 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

  3. 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

  4. 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

  5. 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/

  6. 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... 

  7. 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

  8. Discussion Questions: • What is the definition of electroplating? • In order to electroplate, what is needed for the process to work?

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