Vacuum (physical vapor deposition) coating technology is mainly divided into three categories, vacuum evaporation coating, vacuum sputtering plating and vacuum ion plating. Corresponding to the three classifications of vacuum technology, the corresponding pvd coating machine include vacuum evaporation coating machines, vacuum sputtering coating machines and vacuum ion coating machines. In the past decade or so, vacuum ion plating technology has developed rapidly, and it has become one of the most advanced surface treatment methods today. What we usually call vacuum coating refers to vacuum ion plating; what we usually call pvd coating machine refers to vacuum ion coating machine.

The specific principle of vacuum coating (ion plating) technology is to use low-voltage, high-current arc discharge technology under vacuum conditions, use gas discharge to evaporate the target material and ionize the evaporated material and gas, and use the acceleration of the electric field The evaporated substance and its reaction products are deposited on the workpiece.
        Characteristics of the vacuum coating layer. The film layer plated using vacuum coating technology has the characteristics of high hardness, high wear resistance (low friction coefficient), good corrosion resistance and chemical stability. The life of the film layer is longer. ;At the same time, the film layer can greatly improve the appearance and decorative performance of the workpiece.
       The types of films that can be plated by vacuum coating. Vacuum coating technology is an environmentally friendly surface treatment method that can truly obtain micron-level coatings and is pollution-free. It can prepare various single metal films (such as aluminum, titanium, zirconium, chromium, etc. ), nitride films (TiN, ZrN, CrN, TiAlN) and carbide films (TiC, TiCN), and oxide films (such as TiO, etc.). The thickness of the vacuum coating layer - the thickness of the PVD coating layer is in the micron level and is relatively thin, generally 0.3 μm ~ 5 μm. The thickness of the decorative coating layer is generally 0.3 μm ~ 1 μm, so it can be used without affecting the original size of the workpiece. Under the condition of improving various physical and chemical properties of the workpiece surface, no further processing is required after plating.
       The color types of the film layers that can be plated by vacuum coating - the colors of the film layers that vacuum coating can currently produce include deep golden yellow, light golden yellow, brown, bronze, gray, black, gray black, seven colors, etc. By controlling the relevant parameters during the coating process, the plated color can be controlled; after the coating is completed, the color can be measured with relevant instruments to quantify the color to determine whether the plated color meets the requirements.
       Similarities and Differences between Vacuum Coating and Traditional Chemical Plating (Water Plating) The similarity between vacuum coating and traditional chemical plating is that both belong to the category of surface treatment, and both use a certain method to cover one material on another. surface. The difference between the two is: the bonding force between the vacuum coating layer and the workpiece surface is greater, the hardness of the film layer is higher, the wear resistance and corrosion resistance are better, and the performance of the film layer is more stable; vacuum coating will not produce Toxic or polluting substances.
       Vacuum coating technology is currently mainly used in industries. The application of vacuum coating technology is mainly divided into two categories: decorative coating and tool coating. The purpose of decorative plating is mainly to improve the appearance, decorative performance and color of the workpiece while making the workpiece more wear-resistant and corrosion-resistant to extend its service life; this aspect is mainly used in various fields of the hardware industry, such as door and window hardware, locks, bathroom hardware and other industries. The purpose of tool plating is mainly to improve the surface hardness and wear resistance of the workpiece, reduce the friction coefficient of the surface, and increase the service life of the workpiece; this aspect is mainly used in various knives, scissors, turning tools (such as turning tools, planers, milling cutters) , drill bits, etc.), various hardware tools (such as screwdrivers, pliers, etc.), various molds and other products.
      The main features and advantages of pvd coating machine coating (ion plating) technology - Compared with vacuum evaporation coating and vacuum sputtering coating, vacuum ion plating has the following advantages:
      A. The film layer has strong bonding force with the surface of the workpiece, making it more durable and wear-resistant.
      B. The diffraction performance of ions is good, and it can plate workpieces with complex shapes 0v+R0S4
      C. Fast film deposition rate and high production efficiency
      D. A wide range of coating layers can be applied
      E. The film layer has stable performance and high safety (FDA certified and can be implanted into the human body)