Optical vacuum coating machine is widely used in digital products, plastic products, ceramics, resin, crystal glass products, etc., handicrafts, plastic mobile phone cases, etc. It can prepare AR, UV/IR cut filter, AF, hard film, decorative film, ITO film, bandpass filter, HR film, etc. It has the characteristics of high production efficiency, good film uniformity, high ionization rate, ultra-stable working efficiency, and low energy consumption. It is widely favored by the market, but the daily use of optical vacuum coating machines must develop the habit of regular maintenance and cleaning for a long time, so that the service life of the machine can be longer. How to clean and maintain the optical vacuum coating machine daily?

       1: Cleaning of the optical vacuum coating machine. After the equipment is used for one week, the coating material is not only coated on the surface of the workpiece, but also is coated on the lining plate in the studio due to its non-directionality. The thicker the coating, the thicker the coating. Due to the loose organization and winding, and the absorption of a large amount of gas, the pumping of the vacuum coating equipment is getting slower and slower. At this time, the studio and the lining board should be cleaned. If there are unnecessary parts to be removed, they can be cleaned with sandpaper. The lining board can be soaked in an aqueous solution of hydrofluoric acid. The ratio of hydrofluoric acid and water depends on the length of soaking time and the The principle of not hurting the lining. The prerequisite is that the lining board must be dried with moisture before installation. Before drying, the moisture of the lining board should be wiped as much as possible. After cleaning the work frame and other components with sandpaper, all dust in the vacuum chamber needs to be cleaned up. You can use a vacuum cleaner to clean up the dust. . When the liner is finally installed, both the vacuum chamber and the liner need to be wiped clean with alcohol. Due to the use of electron guns and ion sources to assist coating, it may be difficult to clean, and methods such as sandblasting can be used to clean.
        Two: Maintenance of optical vacuum coating machine. Most of the air extraction system of optical vacuum coating machine adopts diffusion pump, so in the process of use, the diffusion pump oil needs to be replaced regularly. The diffusion pump oil is used for a period of time, about two months, and is replaced once. Due to the long-term high temperature environment, although the diffusion pump is only activated when the vacuum is relatively high, there are still residual oxygen and other components that cause it to react with the diffusion pump oil. Pumping time. It should be replaced when in our opinion it has been extended too far. Mechanical pump oil and maintenance pump oil are used for two months, and the oil quality will change. Because the oil may be sucked into water, impurities and other reasons, the viscosity of the used oil will deteriorate and the vacuum will drop, so it needs to be replaced. If it is a new equipment, it should be replaced in the first half month of use, because during the running-in period, the oil contains a lot of running-in iron powder, which will aggravate the wear and tear.