DEVICE FOR APPLYING CORROSION PROTECTION COATING ON SURFACE OF WETTED PART IN MECHANICAL STRUCTURE MADE OF METAL INSTALLED UNDERWATER

摘要

PROBLEM TO BE SOLVED: To provide a device for applying a corrosion protection coating on the surface of a wetted part in a mechanical structure made of metal installed underwater, which does not need to apply a conventional heavy coating onto a submersible pump and the like, does not adversely affect an operator and surroundings, and inexpensively applies the coating.;SOLUTION: This device has a variable constant voltage DC power-supply unit 4 of which the negative side output terminal 5 is connected to the mechanical structure that is made of metal, installed underwater, and immersed in an electrolytic solution 7, and of which the positive side output terminal 6 is connected to the electrostatic electrode 3 installed so as to face the structure in the electrolytic solution 7, and has such a configuration as to form an electric circuit of the variable constant voltage DC power-supply unit 4 through the electrolytic solution 7 when the voltage is applied. The electrostatic electrode connected to the positive side output terminal 5 of the above variable constant voltage DC power-supply unit 4 may be composed of an insoluble material.;COPYRIGHT: (C)2004,JPO