ELECTRIC CORROSION PROTECTION METHOD

PROBLEM TO BE SOLVED: To provide a method of electric corrosion protection in the atmosphere for preventing the corrosion of painted surface with certainty. SOLUTION: In the method for the electric corrosion protection of a structure in the atmosphere, an electrode is disposed via an insulating mate...

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1. Verfasser:	ICHINOSE YUUSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of electric corrosion protection in the atmosphere for preventing the corrosion of painted surface with certainty. SOLUTION: In the method for the electric corrosion protection of a structure in the atmosphere, an electrode is disposed via an insulating material on the surface of a single-layer or multilayered film formed on the surface of an object of corrosion protection made of metal and an electric current is applied from an external power source using the above electrode as a positive electrode and the object of corrosion protection as a negative electrode; or the external power source is not used and a sacrificial anode is disposed as the electrode and this sacrificial anode is electrically connected to the object of corrosion protection. In both cases, the film having a photocatalytic action in the outermost surface layer is used.