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The entire working process of vacuum ion plating

The entire working process of vacuum ion plating

2020-08-20

The entire working process of vacuum ion plating 

vacuum coating machine


The entire working process of vacuum ion plating is: First, pumping the vacuum chamber into vacuum. When the vacuum environment pressure is above 4X10⁻³Pa, the high-voltage power supply needs to be connected to construct a low-pressure discharge gas between the substrate and the evaporator. Plasma low temperature area. A negative high voltage of 5000V DC is used to connect the substrate electrode to form a glow discharge of the cathode. Inert gas ions are generated near the negative glow zone. They enter the dark zone of the cathode and are accelerated by the electric field and bombard the surface of the substrate. This is a cleaning process, and then enter the coating process. Through the bombardment heating, some gasification In the plating material, atoms enter the plasma zone, collide with electrons and inert gas ions, and a small part of them are ionized. The high energy of these ionized ions will bombard the surface of the film, which will improve the quality of the film.





Do you know the glass used in building is not normal grade glass? It is special and has two basic functions of light transmission and heat insulation.Normal grade glass can radiate energy through most of the sun's rays, this is very beneficial for the energy of daylighting and absorbing sunlight.For infrared radiation, normal grade glass can prevent indoor heat from passing through the outdoor directly , but the secondary heat dissipation after the heat is absorbed by the glass which will cause great loss.

With the development of the economy, normal grade glass has become unable to meet people's latest requirements.The solar control film and the low-radiation film can make up for the shortcomings of normal grade glass in this respect. PVD Vacuum coating on glass can meet the requirements of lowering indoor temperature in low latitudes.PVD coatingon Glass is mean coating a layer of TiO2 on glass which can make it have the functions of anti-fog, anti-dew and self-cleaning glass.This process is widely used on automotive glass nowadays and it is very effective.





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