Analysis of vacuum plating technology for watches

At present, the leading countries in this field are Western developed countries, such as Swiss watches, Germany, the United States and other countries, Japan's level is also very high. There are various characteristics in the process, it is difficult to tell how much advantage. At present, most of the coating technology is applied to industrial products such as tools, auto parts, molds, medical equipment and the like which have relatively high performance requirements. The application of the plating technology to the watch can directly make the simple Swiss watch not easy, and the excellent scratch resistance and dazzling color fundamentally increase the added value of the product.

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PVD coating technology

In the field of coating technology, PVD technology is the oldest and the most widely used. Today, most of the PVD methods we use are arc and sputter deposition coatings. Physical methods (such as evaporation, sputtering, etc.) vaporize the coating material on the surface of the substrate while the workpiece rotates in a highly vacuum furnace. Deposited into a cover layer. PVD coating technology includes physical vapor deposition coating (PVD coating) and chemical weather deposition coating (CVD coating), CrN nitride), TiN (nitride), TiALN (aluminum nitride), TiCN (carbon) Nitrile) and other coatings. They all belong to a single layer of PVD coating, but the materials are different.

Vacuum ion plating

The development of PVD coating technology has been mainly divided into three categories: vacuum evaporation coating, vacuum sputtering coating and vacuum ion plating. Among them, the plating technology often used in watches is vacuum ion plating, including IPG (vacuum ion gold plating), IPR (rose gold), IPB (black) and IP (blue). Their basic processes are the same, but they are expressed in a variety of different colors due to the different targets. The basic characteristics of vacuum ion plating are that the stability is better and it is not easy to be scratched. The service life of the camel is directly affected by the material of the coating.

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DLC coating technology

Nowadays, a coating technology has been gradually applied to watches, which is PaCVD in process and belongs to CVD. This technique was first applied to the Formula 1 car because the coating is more focused on the appearance of color, also known as decorative coating. The watch is deformed by high temperature, so its oxidation temperature is only 300 degrees Celsius, but its hardness is very high, reaching 4000 (Vickers hardness), very wear-resistant.

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The DLC coating process has the highest performance ratio so far. The process is professionally based on ion-enhanced chemical vapor deposition (PaCVD) in a highly vacuum environment with a temperature of less than 200 ° C, the deposition of extremely smooth, good adhesion of the disordered diamond carbide coating HLC). Compared to the PVD process, the PaCVD process uses a deep-plated power supply that eliminates the need for a cathode target and the workpiece does not need to be rotated in the furnace. The process is a clean, non-polluting, reliable and multi-performance coating process. And the DLC coating is very hard and wear-resistant, it can be said that it will never change color, and the color is also very beautiful, very in line with the modern aesthetic.