Gold plating surface treatment

Gilling is a surface treatment technology. Through the method of electroplating or chemical plating, it covers a thin layer of gold layer on the surface of the substrate. This process can not only significantly enhance the appearance of the product, but also give it excellent characteristics such as corrosion resistance and conductivity.

Gold-plated process

There are two main methods for gold plating::

Electroplating: The workpiece to be placed is used as the cathode, the gold is an anode, and placed in the electrolyte containing gold ions. After power is powered, the gold ion is precipitated on the surface of the workpiece to form a gold -plated layer.

Chemical plating: No need to add current, to restore gold ions on the surface of the workpiece through chemical reactions.

Advantages of Gold

Beauty: Gold's color is noble and elegant. The gold -plated layer can make the product have a beautiful appearance and enhance product value.

Corrosion resistance: Gold is a precious metal with stable chemical properties. The gold -plated layer can effectively protect the substrate from oxidation and corrosion.

Good conductivity: Gold has excellent conductivity, and the gold -plated layer can improve the conductive performance of the product.

Abrasion resistance: The gold -plated layer has good wear resistance and can extend the service life of the product.

Gold-plated application

Gold plating is widely used in various fields:

Electronic industry: circuit board, connector, integrated circuit, etc.

Jewelry jewelry: ring, necklace, bracelets, etc.

Decoration: photo frames, crafts, etc.

Medical equipment: surgical equipment, implant, etc.

Automobile industry: car decoration parts, etc.

Classification

According to the thickness of the gold plating layer and the content of gold, gold plating can be divided into the following:

Flash plating: The plating layer is thin, mainly used for decoration.

Hard plating: The coating is thicker and has high hardness and abrasion resistance.

Chemical plating: uniform plating layer and strong combination.

Issues that need attention

Treatment of substrate: The surface treatment quality of the substrate directly affects the adhesion of the coating.

Preparation of plating solution: The composition and concentration of plating solution have an important impact on the mass of the coating.

Control of process parameters: process parameters such as current density, temperature, time, etc. need to be strictly controlled.

After plating treatment: cleaning, drying, etc. after plating.

Development trend

With the advancement of technology, gold -plated technology is also developing. In the future, gold -plated technology will develop in the following directions:

Environmental protection gold plating: developing polluting and low -energy gold -plated technology.

High -performance gold plating: improve the abrasion resistance and corrosion resistance of the coating.

Micro -nano -gold plating: apply gold -plated technology to the preparation of micro -nano -devices.

Summarize

As an important surface treatment technology, gold plating has a wide range of applications in industry and life. By understanding the gold -plated process, advantages, application and development trends, we can better choose and apply gold -plating technology.