Stainless steel colors

DIAMOND LIKE CARBON (DLC)

DLC coating (Diamond-Like Carbon coating) is a special protective layer, also referred to as amorphous carbon. DLC is made with a chemical vapor deposition technique. The chemicals are deposited in a vacuum environment with the help of an inert gas that places the carbon atoms on the surface. They form a thin layered plating of diamond crystal mixed with carbon atoms. Besides its decorative function, the DLC coating is distinguished above all by its inalterability, resistance to corrosion, high hardness and very low coefficient of dry friction which provides excellent scratch resistance. This blend results in an extremely durable treatment with an anthracite color that has been in use for over 20 years in various fields such as Formula 1, power generation, aerospace, the medical sector and since recently; in wrist-watches.

PHYSICAL VAPOUR DEPOSITION (PVD)

Physical vapour deposition (PVD) is a surface treatment adapted from industrial use for metallic coatings in watchmaking. The process consists of applying one or more layer of titanium nitride (a metal, just as hard as it is dense) to the stainless steel. Physical vapour deposition is carried out in a vacuum chamber at temperatures between 150 °C and 500 °C, by means of a cathodic arc source and can react with various gases to deposit oxides, nitrides, carbons or carbonitrides. The titanium coating is then covered again with a coating so that it assumes a hue similar to that of 23.5 karat gold or even carbon. PVD enables colorations that are not subject to deterioration and significant enhancement of resistance against wear.

Grade B:

The plating parts will be stay in the machine more than two and half hours. The plate coating include:
0.6 micron Tin + 0.05-0.08 micron AU—?The Artificial sweat and salt spray test and wear resistence test passed 12hours.

Grade A:

The plating parts will be stay in the machine more than 3 and half hours. The plate coating include:
0.6 micron Tin + 0.1 micron AU.The Artificial sweat and salt spray test and wear resistence test passed 24 hours.

Grade A+:

The plating parts will be stay in the machine more than 4 hours. The plate coating include:
0.8 micron Tin + 0.2 micron AU.The Artificial sweat and salt spray test and wear resistence test passed 48 hours.

 


Post time: Sep-07-2020
WhatsApp Online Chat !