Simple plain speaking: Pump the enclosed cavity into a high vacuum, bombard the metal, alloy and oxide target materials into micro atoms with electric energy, deposit and attach to the workpiece surface, and grow a layer of nano-micron film; It belongs to high-end surface treatment equipment, different from common painting and spraying. The above-mentioned * * vacuum coating hanging line * * is the automatic conveying assembly line matched with the vacuum coating machine, and the single machine is the vacuum coating machine.
Ordinary spraying=one coat of paint; Vacuum coating="long" layer of metal film in vacuum environment.