Metals are widely used in the modern world, playing a key role in industry, construction, transport and everyday life. At the same time, metal products are susceptible to negative environmental influences: moisture, oxygen, mechanical damage and aggressive chemicals. Without adequate protection, metal objects lose their original characteristics and gradually degrade.
One of the most effective methods of protecting and decorating metal products is electroplating — thin metal layers applied to the surface of the product through electrochemical reactions. Electroplating combines functional and aesthetic properties, reliably protecting metal from corrosion and damage, as well as giving products an exquisite appearance and improved performance.
This article is devoted to the main features and capabilities of electroplating, revealing the potential of this technology to increase the durability and value of metal products.
What is electroplating?
Electroplating is a protective or decorative metal layer obtained by electrochemical deposition. The process takes place in special baths, where the product is placed in an electrolyte containing salts of the desired metal. Under the influence of electric current, metal atoms settle on the surface of the product, forming a strong and even layer.
Electroplating provides a number of advantages:
- Protection against corrosion and oxidation.
- Durability and wear resistance.
- Aesthetics and shine, giving the product a special chic.
- Additional useful properties (electrical conductivity, hardness, abrasion resistance).
That is why electroplating is actively used in the automotive industry, jewelry industry, instrument engineering, architecture and construction.
Classification of electroplating coatings
Coatings are classified according to several criteria:
By appointment:
- Protective — they prevent corrosion and mechanical damage.
- Decorative — improve the appearance of the product, giving shine and attractiveness.
- Functional — adds additional properties such as electrical conductivity, heat resistance, or hardness.
By composition:
- Single—layer - simple application of a single layer.
- Multilayer — alternating layers of different metals to improve performance.
By type of material:
- Nickel is an excellent combination of protective properties and gloss.
- Chrome is a shiny coating with increased durability and resistance to external influences.
- Gold is a decorative coating used
