| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a galvanic anode for electrolytic protection having a magnetic suction device, which can be manufactured at low cost to an arbitrary dimension using a permanent magnet as a mass-produced product, exerts sufficient magnetic attractive force, and can firmly fix the galvanic anode for electrolytic protection to a metal structure such as a steel pipe pile and a steel sheet-pile installed in ocean and a river. <P>SOLUTION: The galvanic anode (B) for electrolytic protection includes an anode body (1B) for passing a metal structure (10) electrolytic protection current, and a magnetic pole distribution type magnetic suction device (A) for fixing the anode body to the metal structure. The device (A) includes: a platy or prismatic permanent magnet (1) having one magnetic pole on a suction surface (11) and another magnetic pole on a reverse surface; a tray-shaped recessed yoke (2) in which the plurality of permanent magnets are arranged so that adjacent magnetic poles with predetermined interval therebetween are mutually different magnetic poles and housed in a recessed part (21); and a mid-partition yoke (3) fixed to the recessed part of the recessed yoke for maintaining the predetermined interval of the permanent magnets. <P>COPYRIGHT: (C)2012,JPO&INPIT |
