the method to create substate-protective covers by Anode-cathodic microarc oxidation

摘要

PURPOSE: A method for depositing a surface protection film on substrate is provided to reduce pores formed on a film on the surface of the substrate and increase adhesive property of the film by forming the protection film on the surface of the substrate using plasma generated by anode-cathodic micro-arc electric discharge. CONSTITUTION: The method comprises coating process for aluminum alloy; wear resistance corrosive pillar coating process using a coating solution comprising graphite and carbon contained materials, thermal corrosion preventing titanium alloy (BT-1), Al2O3 and SiO2; copper coating process performed on the titanium alloy (BT-1); decorative coating process of coating Al2O3 on the aluminum alloy; and cleaning process of aluminum products using graphite oil used in press operation, wherein the plasma state is produced by using anode-cathodic micro-arc electric discharge so that the substrate protection film having durability is formed by depositing an object, via electric discharge, on the surface of the substrate, the micro-arc process enables inner and outer parts of any substrate to be uniformly coated by higher productivity compared with general anodizing and higher mechanical dielectric heat resistance.