The manufacturer of evaporation vacuum coating machine tells you the secret of maintenance

  The manufacturer of evaporation vacuum coating machine tells you the secret of maintenance

  Many people do not pay much attention to the maintenance of evaporation vacuum coating machine, which leads to many problems in evaporation vacuum coating machine. So what is the maintenance secret of evaporation vacuum coating machine? The following evaporation vacuum coating machine manufacturers tell you.

  First of all, when using evaporation vacuum coating machine, every time more than 200 coating procedures are completed, the equipment should be cleaned with a saturated solution of caustic soda (NaOH). The saturated solution of caustic soda (NaOH) should be repeatedly scrubbed on the inner wall of the vacuum chamber. Direct contact with caustic soda solution to avoid burns) The purpose is to make the coated aluminum (AL) react with NaOH.

The manufacturer of evaporation vacuum coating machine tells you the secret of maintenance

  After the reaction, the film will fall off and release hydrogen. Then clean the vacuum chamber with clean water and clean the dirt in the fine suction valve with a cloth dipped in gasoline. The studio should be cleaned every time 200 coating procedures are completed.When the rough pump (slide valve pump, rotary vane pump) works continuously for one month (half in the rainy season), new oil needs to be replaced. Unscrew the oil bolt, drain the old oil, and then start the pump for a few seconds to completely drain the old oil in the pump. Tighten the oil plug and add new oil to the rated amount (observed by oil sight glass). If you use it continuously for more than half a year, you should open the oil cap when changing the oil and wipe the dirt in the tank with a cloth. When the diffusion pump is used continuously for more than 6 months, the pumping speed is obviously slower. The diffusion pump has been used continuously for more than 6 months, the pumping speed is obviously slow, or the operation is improper, fill the atmosphere, remove the connecting water pipe, remove the electric stove plate, unscrew the first-stage nozzle, and clean the pump cavity and pump bladder with gasoline. Once again, rinse with detergent and water, and then rinse thoroughly with water. After the water evaporates, install the pump, add new diffusion pump oil, and install it back to the body, connect the water pipe, and install the electric hob.

  Then you can reboot. Before restarting, pay attention to leak detection work. Then, start the maintenance pump and close the door. After a few minutes, observe whether the vacuum degree of the diffusion pump reaches 6X10 Pa. Otherwise, leak detection is required. Check whether the joint is equipped with a sealing rubber ring, or the sealing ring is crushed. Heat up after removing the hidden danger of air leakage, otherwise the diffusion pump oil will burn the ring and cannot enter the working state.

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