Electroplating corrosion protection

- Aug 06, 2018 -

We are no stranger to rust, but it is not necessarily known about how much rust is. Rusting is a popular saying of metal corrosion.

Corrosion is a phenomenon of damage and destruction that all objects in nature must face, not only consuming resources and polluting the environment. It even endangers the safety and health of human beings. The most common and serious metal material products are corroded, especially the products of steel materials that are used in large quantities. Of course, not only the metal will corrode. Animals and plants, inorganic matter, including mountains and rocks that people think are extremely hard, can also cause corrosion. Corrosion of such materials. The term erosion is often used, while for organic matter the term corruption is used.

Corrosion, in layman's terms, is the process of oxidation of matter. Strictly speaking, the process by which a molecule or atom that constitutes a substance loses electrons is a process in which matter changes from a high-energy state to a low-energy state. Spontaneous process. Corrosion occurs as long as there are conditions in the environment that cause oxidation of substances, especially metal substances, such as moisture (ion moving), salt particles (electrolytes), and material interfaces (where electrons are exchanged). Now such an environment is everywhere, so corrosion is happening at any time.

Because corrosion is universal, concealed, and gradual, it can be controlled, but it is difficult to eradicate. Coupled with the lag and indirectness of the effectiveness of corrosion control, most people turn a blind eye to it and disagree.

Electroplating is a common and important means of metal corrosion protection. For example, it has been counted that the galvanized area of various parts of a Jiefang brand car is 10m2, like high-voltage towers, highway guardrails, various days. For steel products, electroplating technology is used.

The screws we use, also known as fasteners, can be rusted not only if they are not protected by plating, but also affect the service life and safety of the connected parts. Rusty fasteners are also difficult to assemble and disassemble, so most fasteners are plated. The electroplated zinc used in fasteners is also nickel-plated or blackened due to special needs. These plated fasteners effectively extend the service life.

At the same time, we can also see that electroplating technology is not only used for anti-corrosion of materials and appearance of metal products, but also has many other functions, which has become an indispensable processing technology in modern manufacturing.

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