Core Surface Treatment Equipment for Automotive & Hardware Industry
PVD vacuum coating machine is mature mainstream vacuum processing equipment realizing physical vapor deposition thin-film coating under high-vacuum environment, extensively applied to automotive parts, precision cutting tools, sanitary hardware, mobile phone accessories and optical lens surface functional modification globally. The complete machine is composed of sealed stainless steel vacuum chamber, multi-stage vacuum pumping system (rough pump + turbo pump), target sputtering source, workpiece rotation fixture and automatic electrical control cabinet, completing whole coating procedure including chamber evacuation, workpiece pre-cleaning, gas filling and target sputtering deposition inside closed vacuum space.
Working flow starts with rough vacuum pumping to remove over 99% atmospheric air inside chamber, followed by turbo molecular pump high-vacuum pumping down to 10??~10??Pa; inert gas such as argon is then filled into cavity and ionized into plasma under electric field to bombard solid metal/ceramic target, knocking out target atoms which fly and evenly deposit on rotating workpiece surface to form dense nano-scale thin coating layer without high-temperature oxidation damage. PVD coating runs at low processing temperature ranging from 150°C to 300°C, compatible with coating on aluminum alloy, stainless steel, plastic and alloy steel substrates impossible for high-temperature CVD technology.
In automotive manufacturing industry, PVD machines deposit wear-resistant TiAlN coating on engine valve parts and decorative gold/black chrome coating on automotive lamp trim and interior metal parts, improving part corrosion resistance and surface ornamental performance simultaneously. For hardware industry, faucet, zipper and lock surface decorative coating replaces traditional electroplating, reducing heavy metal wastewater discharge and complying with international environmental protection standards; cutting tool PVD hard coating doubles service life of drill bits and milling cutters.
Customizable single-door vertical and double-door continuous production PVD models satisfy small-batch trial production and large-volume automatic mass production respectively, becoming standard configuration for surface treatment factories in Europe, Southeast Asia and North America importing Chinese vacuum coating equipment.