The decorations we wear in daily life are coated with a layer of film, such as rings, earrings, necklaces, and decorations applied to other products, all of which are coated with a film by the jewelry pvd coating machine to achieve the effect and performance we want. Jewelry vibration plating is vacuum-plated by sputtering. Due to the different coating methods, the effect of the thin film prepared by the same plating material will be different. Although it cannot be seen by the naked eye, it does have certain advantages. The film thickness has good stability, because the thickness of the sputter coating layer has a great relationship with the target current and the discharge current. The higher the current, the greater the sputtering efficiency. The thickness of the coating layer is relatively large at the same time. Because as long as the current value is well controlled, how thick or thin the film needs to be. The film has a strong binding force. During the vacuum plating process, some electrons hit the substrate surface, activate surface atoms, and produce a cleaning effect. The energy obtained by sputtering of the plating material is higher than the energy obtained by evaporation 1 to 2 orders of magnitude, when the atoms of the plated material with such high energy hit the surface of the substrate, more energy can be transferred to the substrate, generating more thermal energy, and accelerating the movement of atoms activated by electrons, and Some of the plating material atoms are fused with each other earlier, and other plating material atoms are deposited in succession to form a film, which strengthens the bonding force between the film layer and the substrate. The plating material has a wide range, because the sputter coating is sputtered out by high-speed bombardment of argon ions, of course, this thickness is within the allowable range, and the current is controlled well, no matter how many times the coating is repeated, the thickness of the film is No change, the stability of the film thickness can be attributed to the good controllability and repeatability of the film thickness. Unlike metal electroplating, which is restricted by the melting point, only plating materials with a relatively low melting point can be used, and solid materials with sputter coatings can all become plating materials.
2020-07-08
