Adjustment plate for vacuum coating machine

Adjustment plate for vacuum coating machine

According to the theory of film thickness distribution, the uniformity of film thickness between substrates can be improved by adding adjustment plates in the evaporation chamber, so as to improve the yield and meet the requirements of mass production.

In the design process of the adjustment plate, the angular error of material evaporation is ignored, and the film thickness T is only related to the evaporation angle θ. By adding adjustment plates, the difference in film distribution caused by different evaporation angles can be changed. The finalization of the adjustment plate is corrected and finalized by actual production data.

Vacuum coater crystal position

The crystal position of EI-5Z is outside the edge of the holder, which will affect the accurate measurement of the film thickness of the substrate. Considering the requirements of the process and the airtightness of the cavity, the crystal position cannot be changed, and the influence on the film thickness control cannot be eliminated.

Application of vacuum coating machine coating technology in aircraft protective coating

The titanium alloy fasteners of the aircraft were originally plated with cadmium by electroplating. However, cadmium plating contains hydrogen, so in the process of flying, it is corroded by the atmosphere and seawater, and "cadmium embrittlement" easily occurs on the coating, and even leads to "air crash". In 1964, the ion plating method was used to plate aluminum on titanium alloy fasteners, which solved the problem of "cadmium brittleness" of aircraft parts. In the ion plating technology, because a negative bias is applied to the workpiece, a "pseudo-dispersed layer" can be formed and the film arrangement can be refined, so the corrosion resistance of the film can be significantly improved.

Application of vacuum coating machine coating technology in architectural glass and automotive glass

Architectural glass has two basic functions of light transmission and heat insulation. Generally, glass can transmit most of the solar radiation energy, which is very beneficial for lighting and absorbing solar energy. As for infrared radiation in space, although glass can prevent the heat in the room from directly passing through the outside, the secondary heat dissipation after the heat is absorbed by the glass will also constitute a great loss. With the development of the economy, general glass has become less and less able to meet everyone's requirements. The solar control film and low-emissivity film just make up for the lack of ordinary glass in this regard. The solar control film can meet the requirements of lowering the indoor temperature in low-latitude areas; while the low-emissivity film can meet the requirements of high-latitude areas to fully withstand solar radiation energy and prevent indoor heat outflow to the greatest extent.

On glass, coating a layer of TiO2 can make it anti-fog, anti-dew and self-cleaning glass. This technique has an excellent application in automotive glass.

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