Vacuum coating refers to heating metal or non-metal materials under high vacuum conditions, so that it evaporates and condenses on the surface of plated parts (metal, semiconductor or insulator) and forms a film method.

    Many different kinds of plastic, not all can be vacuum coating, some with the adhesion strength of the metal layer is very poor, there is no practical value, some and some physical properties such as the expansion coefficient of metal coating difference is too big, difficult to ensure that its use in high temperature environment performance, vacuum coating, so compared with inorganic materials such as metal, glass,Plastics as matrix materials have certain particularity.

    Metallized mirror plastic than matrix plastic not only has a sense of precision, weight, show a magnificent decorative, and in mechanical strength, heat resistance, dimensional stability, water absorption and other aspects are superior.Since the energy of the metal atoms is lower than that of the evaporation process, a stable metal film can be formed on the surface of even the plastic with poor heat resistance.

    At present, the color of the film layer can be dark golden yellow, light golden yellow, brown, bronze, gray, black, gray black, seven color, etc.By controlling related parameters in the coating process, the color can be controlled.After the end of the coating can be measured with the relevant instrument, so that the color can be quantified to determine whether the color of the plating meets the requirements.