European and American refrigeration technology

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　　The coating machine generally needs to be equipped with a chiller as the cooling equipment of the coating machine (mainly cylindrical target). Cooling water must be added 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.

　　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 vacuum coating machine uses natural water and cooling towers to dissipate heat, which are inevitably affected by natural temperature, and this method of control is extremely unstable. 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.