Compared with the evaporation pvd coating machine and the sputtering vacuum coating machine, the most important feature of the multi-arc ion vacuum coating machine is that the charged ions bombard the substrate and the film layer while depositing. A series of effects produced by the bombardment of energetic ions are mainly as follows:

       The coating film layer of the multi-arc ion pvd coating machine is not easy to fall off. Due to the sputtering effect of ion bombardment of the substrate, the substrate is cleaned, activated and heated, which can remove the gas and pollution layer adsorbed on the surface of the substrate, as well as the oxide on the surface of the substrate. The heating and defects of the spatula during ion bombardment can cause enhanced diffusion of the matrix. Multi-arc ion pvd coating equipment coating not only improves the crystallization performance of the surface layer of the substrate, but also provides conditions for the formation of alloy phases.
       Multi-arc ion pvd coating machine produces good diffraction due to it. In the multi-arc ion vacuum coating equipment, when the pressure is high (≧1Pa), the ions or molecules of the vaporized vapor will encounter multiple collisions of gas molecules on the way to the substrate. The coating of multi-arc ion pvd coating machine can also be deposited on any position on the surface of the substrate with negative voltage under the action of the power plant. Therefore, this point cannot be achieved by evaporation plating.
       Multi-arc ion pvd coating machine has high coating quality. Because ion bombardment can increase the density of the film and improve the structure of the film, the uniformity of the film is good. The coating structure of the multi-arc ion vacuum coating equipment is dense, with fewer pinholes and bubbles.
       The multi-arc ion pvd coating machine has high deposition rate and fast film formation speed, and can prepare 30μm thick film. Multi-arc ion vacuum coating equipment is applicable to a wide range of substrate materials and film materials. It is suitable for plating metal, compound, and non-metallic materials on metal or non-metal surfaces. Such as coating on the surface of various materials such as steel, non-ferrous metals, quartz, ceramics, and plastics.