Electroplating Electroplating is the process of depositing one

Electroplating • Electroplating is the process of depositing one metal onto another metal. • Electrons travel from the negative end of the battery through the cathode (penny), through the solution, up through the anode (zinc), and into the positive end of the battery. • The positively charged zinc ions from Battery the solution are attracted to the negatively charged cathode. Electrons • These ions attach themselves to the Electrons cathode. • More positively charged zinc ions are pulled off the anode to replace the ones now on the cathode. Metal Salt Solution A regular unplated penny Cathode A similar penny plated in nickel. Another penny plated in gold Zinc Ions Anode Electrons

Electroplating Applications • Increase Hardness and Durability – Steel parts like camshafts and crankshafts are chrome plated • Increase Conductivity – Electric train rails are nickel plated – Contacts in electrical circuits are gold plated • Increase Corrosion Resistance – Iron and galvanized steel are zinc plated • Enhance – Jewelry is silver and gold plated Copper plated Rose Electroplating Factory

Electrostatics • Most atoms are neutral because they have the same amount of protons as electrons. • Some electrons can move freely from one atom to another. • Static electricity is the imbalance of positive and negative charges. • Like charges repel, and opposite charges attract each other. • A common way to move electrons from one place to another is to rub two objects together.