What are the precautions for vacuum coating machine startup and shutdown? Process and coating system configuration
What are the precautions for vacuum coating machine startup and shutdown? Simply put, the vacuum coating machine says that there are certain skills and safety hazards in the startup or shutdown. In the next time, we will give you a detailed introduction to the vacuum coating machine startup and shutdown. .
(1) Proficiency in the “Safety Operation Procedure for Vacuum Coating Machine”.
(2) Check whether water, electricity and gas are normal before starting the machine. (The cooling water pressure can generally be above 0.2 MPa, the gas is above 0.4 Mpa, and the voltage is between 370 and 390 V).
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(3) Start-up procedure: Pneumatic mechanical pump, open the fore-stage valve after about 30s, open the composite vacuum gauge, and then turn on the diffusion pump when the front stage is pumped below 10Pa and stabilized (it is necessary to check whether the following electric furnace wire is red).
(4) Shutdown procedure: Turn off the power meter, close the high valve, cut off the heater power supply, and use the foreline pump to pump the front stage to the room temperature naturally. Turn off the front stage pipeline valve, stop the mechanical pump, stop the cooling water, stop the power, and stop the gas.
Vacuum coating equipment process and coating system configuration
We believe that since the coating equipment is used for coating production, the coating system we design and manufacture must adapt to the user's production process, rather than let the user change the production process to adapt to our coating machine. ------Frank Zemon
In the past 15-20 years, optical film coating equipment has undergone dramatic changes. In the past, the general coating machine was purely manual operation, and the most advanced one was only semi-automatic control. All the operators must ensure the consistency of the coating products according to the high level of operation. Now, the high-quality optical coater is already a fully automated system that integrates a series of intelligent modules (subsystems). These intelligent modules (subsystems) are usually formed into a local area network (LAN) under the command of a plurality of microprocessors, and the local area network can be incorporated into the entire factory automation system.
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The ever-increasing user experience has made their requirements for equipment performance more and more demanding, so that it is not difficult for us to find that users are purchasing the coating machine at the same time, and also require manufacturers to provide relevant process technology. This article explores the subsystems and components that can be used in today's optical coating systems, as well as the decisive role of coating processes in component selection and vacuum chamber configuration. Although other technologies are becoming more popular, physical vapor deposition is currently the most applicable and widely used method, so the discussion in this paper only covers physical evaporation techniques.