how electroplating of gold is done
Answers
Answer:
WHAT IS ELECTROPLATING?
Electroplating is the process of coating one metal or metal object with a very thin layer of another metal, typically by applying a direct electric current. This partially dissolves the metals and creates a chemical bond between them. The coating applied by electroplating is usually around 0.0002 inches thick.
By creating a chemical bond, the plating is a permanent addition to the surface of the base metal. This means that it will not naturally fall off or separate. However, plating can be worn off over months and years of use and wear.
Because this top layer is so thin, it has very specific uses. Some metals are used as a coating, because they give added protection from rust, damage or corrosion.
HOW ELECTROPLATING WORKS
wire-bondable-gold-nickel
The Ancient Greeks used to mechanically attach gold to other metals through heating metals and placing them together then rapidly cooling the combination. This was hammered into shape for statues, books and many other artifacts.
Modern gold plating, called gold electroplating, relies on a chemical process to combine various layers of metal into a solid piece with a layer of gold resting on the surface. Electroplating has been in use commercially since the 1840s and was heavily refined during the two World Wars.
In all gold plating, the part is polished and cleaned as thoroughly as possible before the electroplating process starts. Gold plating will look uneven and smudged if the surface is dirty, oily, scratched or otherwise damaged.
Modern electroplating begins with the creation of a metal salt using the plating metal, typically gold or silver. These salts are formed when an acid and a base combine and create a neutralization reaction. Metal salts are formed when positively charged ions of a metal are combined with an acid or with a non-metal. This salt is then placed in water and mixed together to form the “bath” for your component.
The component you’re plating is immersed in this bath and an electric current is applied to it. The current is directed to the component and dissolves the metal salts as it moves through the bath. Gold molecules ride the current and are deposited onto your component.
Answer:
this is your answer
hope it helps you
please please mark it as brainliest
