• In a vacuum container, the material to be evaporated is heated until vaporized and sublimated, and the gas is allowed to adhere to the surface of the substrate placed nearby to form a thin film.
• According to the type of evaporation material and substrate, it can be divided into: resistance heating, electron beam, high frequency induction, laser and other heating methods. Evaporation materials include aluminum, sub-lead, gold, silver, platinum, nickel and other metal materials and materials that can produce thin films with optical properties. Mainly use SiO2, TiO2, ZrO2, MgF2 and other oxides and fluorides. In addition to metal, resin and glass can also be used for vapor deposition. In recent years, even paper has become vapor-depositable.

Our material has a good and stable phase to ensure the stability of the coating process,
In addition to the production and production of products according to specifications, customized development and mass production can also be carried out according to the needs of customers.

The requirements of precision optical components are constantly increasing, and the performance indicators of coating materials are getting higher and higher:

• Surface treatment of pellets
• Impurity content: less impurities (no particles will appear on the surface of the film after coating)
• Density: high density (fewer voids in the material, which can reduce pre-melting time and avoid splashing)
• Phase pure: good single phase (no impurity phase, good material stability)
• Outgassing volume: small outgassing volume (when impurities are melted, the small outgassing volume will reduce splashing and the coating operability is good)
• Film layer firmness: the film layer is firm (the firmness of the film layer and the substrate is related to the film material and coating process)
• Controllability of coating process: evaporation rate stability, batch stability, etc.