The principle of vacuum coating is that the film body evaporates at high temperature and crystallizes on the surface of the workpiece. Due to the resistance of the atmosphere to the evaporation of membrane molecules, collisions can cause the crystal to become rough and matt. Therefore, it is necessary to maintain a high vacuum in order to make the crystal precise and bright. If the vacuum is not high, the crystal will lose its light and its synergy is also very poor. Early vacuum coating relies on natural scattering of vaporizers, resulting in poor efficiency and poor light quality. Nowadays, with the use of intermediate frequency magnetron sputtering targets, the evaporated molecules of the film body are accelerated by bombarding the target material under the action of an electric field. A large number of target atoms are ejected, and the neutral target atoms (or molecules) are deposited on the substrate to form a film. This solves the problem of film types that cannot be processed by natural evaporation in the past, such as titanium plating, zirconium plating, and so on. The deployment of intermediate frequency equipment must be equipped with cooling water due to its high frequency and high current. When electric current moves through a conductor, it has a skin effect, where electric charges accumulate in the conductor and form a surface product. This allows the conductor to heat up, allowing it to receive a mesoporous tube as the center of the conductor and add water for cooling.
Why do we also need to use water to cool the cylindrical target? The magnetron sputtering target undergoes high temperatures during emission, which can deform the gun, so it has a water jacket to cool the gun. Another important reason is that magnetron sputtering can be considered one of the most outstanding achievements in coating skills. It has high sputtering efficiency, low substrate temperature rise, and good film substrate coupling. From a deeper perspective, the activity discipline of electrons in asymmetric electromagnetic fields is studied, and the more common principles of magnetron sputtering and the reason why the lateral asymmetry and symmetry of the magnetic field are the quality reasons for magnetic binding are explored. Magnetron sputtering can be considered one of the most outstanding achievements in coating skills. It features high sputtering rate, low substrate temperature rise, good film substrate coupling, and stable device performance. The coating machine generally needs to be equipped with a water chiller as the cooling equipment for the coating machine (mainly cylindrical targets). Cooling water must be added because of its high frequency and high current. When electric current flows through a conductor, there is a skin effect, where electric charges accumulate on the surface area of the conductor, which causes the conductor to heat up. Therefore, a mesoporous tube is used as the conductor and water is added to cool it.
Dongguan water chiller is an essential equipment in vacuum coating production. The cooling effect of the Dongguan chiller also directly affects the quality of the product. With the rapid development of the vacuum coating industry, high-quality water chillers have become production equipment that vacuum coating manufacturers attach great importance to.
Dongguan water chiller is a device for manufacturing low-temperature cold water, which can provide continuous constant temperature cold water for vacuum coating equipment. The method of use is to fill the water chiller and buffer tank with water to be cooled, cool the water to the required temperature through the chiller, and then send low-temperature cold water through a water pump to the vacuum coating equipment that needs to be cooled. After the low-temperature cold water exchanges heat in the coating equipment, the temperature rises, and the heat is taken away and then returned to the tank, achieving the function of cooling the equipment. The temperature of low-temperature cold water can be freely adjusted between 5 ℃ and 13 ℃ to meet the requirements of production, energy conservation and consumption reduction.
The main function of Dongguan water chiller in the vacuum coating industry is to control the temperature of the coating machine to ensure the quality and production efficiency of the plated parts. The use of Dongguan water chillers can avoid the drawbacks of running water and cooling tower cooling greatly affected by ambient temperature, ensuring that the coating machine always operates with high accuracy and efficiency.
Dongguan water chiller is a water cooling equipment deployment that can provide constant temperature, constant flow, and constant pressure cooling water equipment deployment. The working principle is to first inject a certain amount of water into the water tank inside the machine, cool the water through a refrigeration system, and then send the low-temperature cooling water to the equipment to be cooled by a water pump. The chilled water takes away the heat, increases in temperature, and then returns to the water tank, achieving the cooling effect. The cooling water temperature can be actively regulated according to requirements, and long-term utilization can save water. Cold water performance controls the temperature of the vacuum coater to ensure the high quality of the plated parts. Without a water chiller, the vacuum coating machine cannot achieve the goal of high accuracy and high compliance with temperature control. Both natural water and water tower heat dissipation are inevitably affected by natural temperature, and this method of control is extremely unstable.
Dongguan water chiller has a completely independent refrigeration system that is never affected by temperature and conditions. The water temperature is regulated and controlled within the range of 5 ℃ to 30 ℃, thereby achieving the goal of high accuracy and high compliance with the controlled temperature. The water chiller is equipped with an independent water circulation system.