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PUYUAN VACUUM COATING, professional manufacturer of vacuum coating machine in China. Having focused on the vacuum coating technology over 20 years, we are a high-tech enterprise integrated with research & development, coating technology, machine manufacturing, sales and coating service together.
We have not only obtained ISO quality management system and CE Product Certificate , but also owned a number of national patents of advanced technology. Accurately carrying out the ISO 9001 quality management system in the design, manufacturing, production and inspection of each…

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We provide turnkey service, including coating film research, equipment’s R&D, design, manufacturing, installation, debugging, trial production, personnel training and machine maintenance...

Bias is the negative voltage which applied to the substrate during the vacuum coating process. The positive terminal of the bias power supply is connected to the vacuum chamber, while the vacuum chamber is connected to the ground. The negative terminal of the bias power supply is connected to the...
Vacuum coating machine fine pumping too slow mainly from the following aspects to find the reasons for: 1、A diffusion pump may not be so awesome.Solution: the ionization gauge can be used to pump the mouth of the pump, see the pump single pumping can reach the number, to look at the time and ...
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