ELECTROLYTIC CORROSION PROTECTION METHOD CAPABLE OF EXECUTING SEA WATER ELECTROLYTIC FOULING PREVENTION AND IRON OXIDE FILM FORMATION BY GENERATION OF IRON ION AND APPARATUS THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide an electrolytic corrosion protection method capable of executing both of sea water electrolytic fouling prevention and iron oxide film formation by generation of iron ions by suppressing the adhesion and propagation of oceanic organisms by the hypochlo rite generated by electrolysis of the sea water for execution of cathodic corrosion protection by an external power source system and forming the iron oxide film on the inside surface of an apparatus consisting of a copper alloy by releasing the iron ions into cooling water and an apparatus therefor. ;SOLUTION: An insoluble electrode 5 and an iron electrode 6 are mounted at the objected to be corrosion-protected in the state of insulating both electrodes from the objected to be corrosion-protected. The insoluble electrode 5 and the iron electrode 6 are respectively connected to a DC power source device 9 for electrolysis in such a manner that the polarities of the insoluble electrode 5 and the iron electrode 6 are made respectively counter in polarities. The constitution to allow the alternation of the polarities of the insoluble electrode 5 and the iron electrode 6 is adopted. The sea water electrolytic pollution prevention and the iron oxide film formation by the generation of the iron ions are executed by connecting the insoluble electrode 5 to a positive pole at the time of suppressing the adhesion and propagation of the oceanic organisms to the objected to be corrosion protected and connecting the iron electrode 6 to the positive pole at the time of eluting the iron ions.;COPYRIGHT: (C)1999,JPO