Vacuum coating equipment maintenance tips Ion coating in optical applications
How to maintain vacuum coating equipment? What are the tips for vacuum coating equipment maintenance? Nowadays, many manufacturers are not very clear about the maintenance of vacuum coating equipment. When maintenance is required, the results are not available, so many manufacturers of vacuum coating equipment have a headache. Today, Xiaobian shares with you three tips on how to repair and maintain vacuum coating equipment.
1. Vacuum coating equipment should be cleaned once every 200 coating procedures. The method is: repeatedly scrub the inner wall of the vacuum with a caustic soda (NaOH) saturated solution (note that the human skin cannot directly contact the caustic soda solution to avoid burns). The purpose is to react the plated aluminum (AL) with the NaOH, and the film after the reaction. The layer falls off and releases hydrogen. Clean the vacuum chamber with clean water and clean the dirt in the precision valve with a cloth dampened with gasoline.
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2. When the rough pump (spool valve, rotary vane pump) works continuously for one month (half the rainy season), new oil needs to be replaced. The method is: unscrew the oil bolt, let go of the old oil, and then start the pump for a few seconds, so that the old oil in the pump is completely discharged. Screw the oil bolt back and add new oil to the rated amount (observation of the oil sight glass). Continuous use for more than half a year, the oil cover should be opened when changing the oil, and the dirt in the box should be cleaned with a cloth.
3. The diffusion pump is used continuously for more than 6 months, the pumping speed is obviously slow, or the operation is improper, it is filled into the atmosphere, the connecting water pipe is removed, the electric furnace plate is removed, the first stage nozzle is unscrewed, and the pump chamber and the pump are first used with gasoline. Wash the gallbladder again, then wash it with water, then rinse thoroughly with water. After the water has evaporated, install the pump, add the new diffusion pump oil, replace it, connect the water pipe, and install the electric furnace. The disk can be rebooted. Pay attention to leak detection before restarting. The method is: start the maintenance pump, close the door, and after a few minutes, observe whether the partial vacuum of the diffusion pump reaches 6X10 Pa, otherwise the leak detection is performed. Check for a seal ring at the joint or crush the seal. It can be heated after eliminating the hidden danger of gas leakage, otherwise the diffusion pump oil will burn the ring and cannot enter the working state.
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Vacuum Coating Machine Ion Coating for Optical Applications
Vacuum coating machine ion coating film in optical applications, vacuum coating machine multi-arc ion plating equipment technology is an important branch of vacuum application technology, vacuum coating machine multi-arc ion plating equipment has been widely used in optics, electronics, energy development, Physical and chemical equipment, construction machinery, packaging, civil products, surface science and scientific research. Vacuum coating equipment Multi-arc ion plating methods mainly include evaporation plating, sputtering plating, ion plating, beam deposition plating, and molecular beam epitaxy.
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Vacuum coating equipment The choice of water ring vacuum pump, vacuum coating machine multi-arc ion plating film in optical, a piece of optical glass or quartz surface coated with one or several layers of different substances, it can become highly reflective or non-reflective (ie The antireflection coating or the reflective or transmissive material of any desired ratio can also be used as a color filter for absorption of one wavelength and for transmission of another wavelength. Vacuum coating machine multi-arc ion plating is required from large-diameter astronomical telescopes and various lasers, to large windows coated with jasmine in new buildings.
Vacuum coating equipment Multi-arc ion-coated anti-reflection coatings are widely used in photography and various lasers, and all the large-window coated glass of new buildings are needed. Antireflection coatings are used extensively on lenses for cameras and television cameras.