Describe in brief the underlying primciple used in chrome plating
Answers
Answer:
Chrome plating often referred to simply as chrome, is a technique of electroplating
Explanation:
Chrome plating (less commonly chromium plating), often referred to simply as chrome, is a technique of electroplating a thin layer of chromium onto a metal object. The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness. Sometimes, a less expensive imitator of chrome may be used for aesthetic purposes.
In electroplating, object to be plated (e.g. tap, iron key,etc.) is made the negative electrode (cathode). It is immersed in the solution containing the ions of the plating metal.
Chrome plating a component typically includes these stages:
- Degreasing to remove heavy soiling
- Manual cleaning to remove all residual traces of dirt and surface impurities
- Various pretreatments depending on the substrate
- Placement into the chrome plating vat, where it is allowed to warm to solution temperature
- Application of plating current for the required time to attain the desired thickness
Various finishing and buffing processes are used in preparing components for decorative chrome plating.