Maintenance skills of vacuum coating equipment
How to maintain vacuum coating equipment? What are the techniques for maintenance of vacuum coating equipment? Nowadays, many manufacturers are not very clear about the maintenance of vacuum coating equipment. When maintenance is required, they are unable to start, which makes many manufacturers of vacuum coating equipment very headache. Today I will share with you how to repair and maintain the vacuum coating equipment and the three skills in the maintenance process.
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1. The working room should be cleaned every time the vacuum coating equipment completes more than 200 coating procedures. 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 can not directly contact the caustic soda solution to avoid burns) The purpose is to make the coated film material aluminum (AL) react with NaOH. After the reaction, the film The layer falls off and releases hydrogen. Then clean the vacuum chamber with clean water and clean the dirt in the fine suction valve with a cloth dipped in gasoline.
2. 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. The method is: 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). After using for more than half a year, the oil cap should be opened when changing the oil, and the dirt in the tank should be wiped with a cloth.
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3. The diffusion pump has been used continuously for more than 6 months, the pumping speed is obviously slow, or the operation is improper, fill into the atmosphere, remove the connecting water pipe, remove the electric stove plate, unscrew the first-stage nozzle, first use gasoline to connect the pump cavity and pump Clean the tank again, then wash it with washing powder and water, and then rinse thoroughly with water. After the water evaporates, install the pump tank, add new diffusion pump oil, and install it back to the body, connect the water pipe, and install the electric stove Disk, you can reboot. Before restarting, pay attention to leak detection. The method is: 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 eliminating the hidden danger of air leakage, otherwise the diffusion pump oil will burn the ring and cannot enter the working state.
Founded in 2015,Zunhua Baorui Titanium Equipment Co.,Ltd. is a manufacturer specializing in pvd vacuum ion coating equipment. The company’s products mainly include large plate coating machine, large tube collating machine, tool coating machine and LOW-E glass production line. Mr.Wang baijiang ,general manager of the company ,has been engaged in vacuum coating industry for more than 30 years. He continuously improve production technology, improve product performance and devote himself to provide customers with better product experience and higher production efficiency.