The working principle of vacuum coating is that the film body evaporates and crystallizes on the surface of the workpiece at high temperature. Because the air will produce resistance to the evaporated film molecules and cause collisions to make the crystals rough and dull, it must be under high vacuum to make the crystals fine and bright. If the vacuum is not high, the crystals will lose gloss and the bonding force is also very poor. Early vacuum coating relied on the natural scattering of the evaporator, combined with poor work efficiency and poor gloss. Now add the medium frequency magnetron sputtering target. The magnetron shooting target accelerates the bombardment of the target material by the evaporated molecules of the film body under the action of the electric field, sputtering out a large number of target atoms, and the neutral target atoms (or molecules) are deposited on Film formation on the substrate solves the types of film that cannot be processed by natural evaporation in the past, such as titanium plating and zirconium plating.
The intermediate frequency equipment must add cooling water because of its high frequency and large current. When the current flows in the conductor, there is a skin effect, and the charge will accumulate on the surface area of the conductor, so that the conductor heats up, so a mesoporous tube is used as the conductor to add water for cooling.
(Mainly a cylindrical target) Why should water be cooled? The magnetron sputtering target will produce high temperature during launch, which will deform the shooting gun, so it has a water jacket to cool the shooting gun. At the same time, there is another important reason that magnetron sputtering can be considered as one of the most outstanding achievements in coating technology. It features high sputtering rate, low substrate temperature rise, and good film-substrate adhesion.
From a deeper study of the movement of electrons in a non-uniform electromagnetic field, the more general principles of magnetron sputtering and the lateral inhomogeneity and symmetry of the magnetic field are the essential causes of magnetic confinement. Magnetron sputtering can be considered as one of the most outstanding achievements in coating technology. It features high sputtering rate, low substrate temperature rise, good film-substrate bonding force, and stable device performance.
Water chiller is a kind of water cooling equipment that can provide constant temperature, constant current and constant pressure cooling water equipment. Its working principle is to inject a certain amount of water into the water tank in the machine, cool the water through the refrigeration system, and then send the low-temperature cooling water to the equipment that needs to be cooled by the water pump. The chilled water will take away the heat and the temperature will rise before returning to the water tank. , To achieve the cooling effect. The cooling water temperature can be automatically adjusted according to requirements, and long-term use can save water.
The chiller can control the temperature of the vacuum coating machine to ensure the high quality of the coated parts. Without a chiller, the vacuum coating machine cannot achieve high-precision and high-efficiency temperature control, because natural water and water tower heat dissipation are inevitably affected by natural air temperature, and this method of control is extremely unstable.
The chiller has a completely independent refrigeration system, which will never be affected by the temperature and environment. The water temperature can be adjusted and controlled within the range of 5℃～30℃, so the purpose of high precision and high efficiency temperature control can be achieved. The chiller has an independent water circulatory system.
Nanjing RICOM Refrigeration Equipment Co., Ltd. is a manufacturer
specializing in industrial temperature control technology for 20 years. It
implements modern quality management system S09001: 2008 and environmental
system IS014001: 2004 standards to ensure that the enterprise team continues to
be in the technical field Innovation, focus on customer use and satisfaction,
unanimously recognized by the industry and customers.
