APPARATUS FOR RELEASING CORROSIVE OXIDATION FILM

摘要

PURPOSE:To simply and rapidly release a corrosive oxidation film, by providing a constant current generation apparatus using a metal having a corrosive oxidation film formed thereto as an anode and a cathode attached to said constant current generation apparatus so as to cover the above mentioned metal. CONSTITUTION:A corrosive oxidation film is formed on the surface of a metal specimen piece 5. The metal specimen piece 5 is connected to the anode terminal of a constant current generation apparatus 9 capable of generating a constant current through a lead wire 7 and functions as an anode. A cathode net 13 as a cathode is connected to the cathode terminal of the constant current generation apparatus through a lead wire 11. The metal specimen piece 5 and the metal net 13 are immersed in an electrolyte 15 and a current is supplied to both of them. When about 1min is elapsed after the current was supplied, the metal specimen piece 5 dissolves to simply and rapidly release the corrosive oxidation film formed to the surface of said metal specimen piece 5.