| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corrosion resistant steel pipe in which corrosion prevention effect can be obtained at a base edge part. <P>SOLUTION: The corrosion resistant steel pipe includes a steel pipe 1 and an anode metal layer 3 made of a metal having an ionization tendency higher than that of steel, and in which the steel pipe 1 and the anode metal layer 3 are electrically conducted. The corrosion resistant steel pipe is provided with a coating film layer 2 made of a coating material including a conductive polymer and covering the steel pipe 1; and the anode metal layer 3 fitted to the part so as to be a base edge part on the coating film layer 2. The anode metal layer 3 is made of at least one kind of metal foil selected from the group consisting of zinc foil, aluminum foil, magnesium foil and zinc-aluminum alloy foil. The metal foil may be fitted to the surface of the coating film layer 2 via a conductive adhesive layer, or may be fitted to the surface of the coating film layer 2 via a nonconductive adhesive layer formed leaving the part directly in contact with the coating film layer 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
