The modern watch industry offers onThe market has a wide range of products, which can sometimes be difficult to understand. In the manufacture of Swiss watches, PVD coating is very often used. Not everyone knows what it is. But the above spraying plays an important role in protecting the product from moisture and not only.
In addition, there are other methods to increasewear resistance of hours and their other characteristics. This, for example, gilding, plating nickel and palladium, sputtering of steel and others. It is problematic for an inexperienced person to find out for himself which method is the best and how the above methods differ from each other. Let's try to figure it out.
Специалисты отмечают, что в часовой industry, the above type of coating is applied in a vacuum. That is, titanium nitride (superhard) is deposited on the body of the product, on top of which is coated with a very thin layer of gold.
There is also another designation of suchA way to protect the surface of a watch, like a PVD coating. What it is? This is a method of coating, which is carried out under high pressure in a vacuum by ion bombardment, evaporation-condensation, and sputtering metallization.
It is thanks to the above chemical processes that such a superfine sputtering is obtained without any impurities.
This type of spraying is used to createsurfaces of tools, parts, equipment coating with functional overtones. For example, the production of glasses frames with gold or PVD-coated watches. This coating has the following properties: corrosion-resistant, wear-resistant, conductive, erosion-resistant, insulating, barrier, anti-friction.
The materials for spraying aremetals such as titanium, tungsten, aluminum, molybdenum, nickel, iron, copper, chromium, graphite. Also, an active chemical gas is sometimes added to the process mixture. For example, oxygen, nitrogen, or acetylene.
Using the above vacuum methodSpray manufacturers have the ability to produce ultra-thin coatings from 2 angstroms to 2 microns thick. Experts note that after applying the PVD coating, the surface of the product no longer requires additional treatment.
It should be noted that there is steel withPVD-coated - partial or full, yellow or white. Due to this coating, the watch case has excellent water-repellent properties and high wear resistance. The thickness of this deposition is in the range from 3 microns to 20 microns.
Experts say that gilding is erased over time. According to average data, the thickness of gold on the watch case decreases by about 1 micron per year.
There are also other methods of applying protective coatings:
Among the methods of thermal spraying are as follows:
The above coating has the following features:
PVD-coating of watches is one of the best ways to protect them. Thanks to this vacuum spraying, the performance of the products is increased.
