The use of pvd coating machines is becoming more and more extensive, the requirements are getting higher and higher, and more and more equipment is purchased, so many problems will naturally arise during the use process. The most frequently asked questions are machine maintenance. The maintenance of vacuum coating equipment is not very clear. When maintenance is required, it turns out that there is no way to start, which makes many manufacturers of pvd coating machine very headache. The following will give you a detailed introduction to the vacuum series, how to maintain the machine, and what methods?

First, every time the pvd coating machine completes more than 200 coating procedures, the studio should be cleaned once.
      The method is: repeatedly scrub the inner wall of the vacuum chamber with a saturated solution of caustic soda (NaOH), (note that the human skin cannot directly contact the caustic soda solution to avoid burns) The purpose is to make the plated film material aluminum (AL) react with NaOH. The layer falls off and hydrogen gas is released. Then clean the vacuum chamber with clean water and clean the dirt inside the fine extraction valve with a cloth dipped in gasoline.
       Second, when the rough pump (slide valve pump, rotary vane pump) works continuously for one month (half of the rainy season), it needs to be replaced with new oil. The method is: unscrew the oil bolt, drain the old oil, and then start the pump for a few seconds, so that the old oil in the pump is completely discharged. Unscrew the oil-returning bolt and add new oil to the rated amount (observed by the oil sight glass). For more than half a year of continuous use, the oil cover should be opened when changing the oil, and the dirt in the box should be wiped off with a cloth.
      Third, the diffusion pump has been used continuously for more than 6 months, and the pumping speed is obviously slow, or the operation is improper, fill the atmosphere, remove the connecting water pipe, remove the electric stove, unscrew the first-level nozzle, first use gasoline to clean the pump cavity and the Wash the pump bladder once, then wash it with washing powder mixed with water, and then thoroughly clean it with water. After the water evaporates and dry, install the pump bladder, add new diffusion pump oil, and put it back into the body, connect the water pipe, and install it. The electric hob can be restarted. Before restarting, pay attention to leak detection.