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Speaking of vacuum coating machine coating, everyone is familiar with it, because it has a wide range of applications and is closely related to our lives, so there must be a certain demand in the market. In the past, most people used water plating to coat objects, but water plating technology has always been There is a problem that confuses everyone, that is, water plating is relatively polluting to the environment, and the country does not support it. Later, everyone found that vacuum plating can also achieve the effect of water plating. Therefore, most customers in the market have changed the coating method and adopted Vacuum coating machine coating.
Replacing the traditional electroplating process with vacuum coating technology can not only save a lot of film materials and reduce energy consumption, but also eliminate environmental pollution caused by wet coating. Therefore, foreign countries have adopted vacuum coating process to replace electroplating process in terms of coating anti-corrosion layer and protective film on steel parts. In the metallurgical industry, it is very common to add an aluminum protective layer to steel and strip steel; in the machinery manufacturing industry, the vacuum coating process is used to change certain processing techniques and save valuable raw materials, such as the blades of aircraft turbine engines are no longer used It is made of expensive high-temperature-resistant metal, but it is made of cheap and easy-to-process materials. After forming, vacuum coating is used to coat the surface of the blade with a high-temperature-resistant and corrosion-resistant protective layer. Another example is the use of plastic metal parts in the automobile manufacturing industry to replace various metal parts, which not only reduces the weight of the car but also saves fuel consumption. Adding TiN hard film on the metal cutting tool can increase the tool life by 3 to 6 times, thus saving a lot of high-speed steel. The plastic film is coated with a metal film such as aluminum by vacuum coating, and then dyed to obtain a decorative film used in industry.
In recent years, glass coating by vacuum coating machines has become very popular in the construction industry, because it can not only beautify buildings, but also save energy. Directly into the room, and save air conditioning costs. The glass is coated with a light filter film and a low-emissivity film to allow sunlight to enter, but the infrared radiation used as an indoor heat source cannot be radiated out through the glass, which can also achieve the purpose of heat preservation and energy saving in high latitude areas.
If the pressure is not low enough (or the vacuum degree is not high enough), good results cannot be obtained. For example, if aluminum is deposited on the order of 10 2 Torr, the obtained film is not only not bright, but even gray and black. And the mechanical strength is extremely poor.
Thin film deposition technology is mainly divided into three major processes: physical, chemical, and epitaxy. Physical vapor deposition is referred to as PVD vacuum coating machine. Chemical vapor deposition is referred to as CVD coating machine for short.
In the vacuum chamber, when the particle concentration in the gas phase and the pressure of the residual gas are low enough, these particles can keep flying in a straight line from the evaporation source to the substrate, otherwise, they will collide and change the direction of motion.
Vacuum coating equipment uses two common coating processes, evaporation and sputtering. These two processes are currently the most popular and widely used, and their attention is naturally much higher than other processes.
Vertical double-door-high vacuum evaporation coating machine
PVD aluminum mirror coating machine
AF anti-fingerprint coating machine
Intermediate frequency ion coating machine
Multi-arc ion coating machine for hardware
Ceramic Vacuum Coating Machine
Large stainless steel coating machine
Glass special coating machine
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