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What is PVD coating? PVD (Physical distribution ),Refers to the use of physical processes to achieve material transfer,The process of transferring atoms or molecules from the source to the surface of the substrate.Its role is to enable certain particles with special properties (high strength, wear resistance, heat dissipation, corrosion resistance, etc.) to be sprayed on the parent with low performance,Makes the parent have better performance.PVD basic methods: vacuum evaporation, sputtering, ion plating (hollow cathode ion plating, thermal cathode ion plating, arc ion plating, active reaction ion plating, RF ion plating, DC discharge ion plating ).Enhanced Magnetic-controlled cathode arc: cathode arc technology is under vacuum conditions,The target is separated into an ion state by low voltage and high current,Thus the deposition of film materials is completed.Enhanced Magnetic-controlled cathode arc utilizes the joint action of the magnetic field,Effectively control the arc on the surface of the target

What is the working principle of security filter in purified water equipment? Jing De Rui answers for you:The security filter is a filter that uses the filter element as the filter medium and uses the pressure to separate the liquid and solid. The method of liquid-solid separation using filter element belongs to the micro-pore filtration technology, which is mainly suitable for solid particles 0.5 ~ The material or particle of 10 μm is greater than 0.5 μm, but the particles are not rigid, easy to deform, difficult to filter materials with large viscosity between particles or between particles and filter media. The liquid to be filtered is pressed into the filter inlet, filtered through the filter layer from the outside of the filter element to clarify the liquid, and then discharged through the outlet. Impurities are trapped in the deep and surface of the filter element to achieve the purpose of liquid filtration, but the use time of the filter element should not be too long, because the filter element is ea