Drum electrode, method for producing drum electrode, plating device, method for producing resin molded body, and method for producing metal porous body

Abstract

A drum electrode, which is used for a device configured to plate a surface of a long base material having electrical conductivity with a metal, includes a power feeding layer, an insulating layer which covers a surface of the power feeding layer, and a projecting electrode which projects from the surface of the insulating layer and is electrically connected to the power feeding layer, in which the projecting electrode is provided linearly in the circumferential direction of the drum electrode.

1 . A drum electrode for a device configured to plate a surface of a long base material having electrical conductivity with a metal, the drum electrode comprising:
 a power feeding layer;   an insulating layer which covers a surface of the power feeding layer; and   a projecting electrode which projects from the surface of the insulating layer and is electrically connected to the power feeding layer,   wherein the projecting electrode is provided linearly in the circumferential direction of the drum electrode.   
     
     
         2 . The drum electrode according to  claim 1 , wherein the height of the projecting electrode varies with the location of the projecting electrode on the drum electrode. 
     
     
         3 . The drum electrode according to  claim 1 , wherein the base material is a resin molded body having a three-dimensional network structure. 
     
     
         4 . A method for producing a drum electrode comprising:
 a step of covering a surface of a columnar power feeding layer with an insulating layer;   a step of partially removing the surface of the insulating layer linearly in the circumferential direction so as to expose the surface of the power feeding layer; and   a step of plating the linearly exposed surface of the power feeding layer with a metal to form a projecting electrode so as to be higher than the surface of the insulating layer.   
     
     
         5 . A method for producing a drum electrode comprising:
 a step of alternately stacking ring-shaped insulating disks and ring-shaped metal disks, each having a through-hole in the center thereof, to form a cylindrical shape; and   a step of inserting a columnar power feeding member into the through-holes of the insulating disks and the metal disks, followed by fixing.   
     
     
         6 . A plating device configured to plate a surface of a long base material, to which electrical conductivity has been imparted, with a metal using a drum electrode provided in a plating tank,
 wherein the drum electrode is the drum electrode according to  claim 1 .   
     
     
         7 . A method for producing a resin structure comprising:
 a step of imparting electrical conductivity to a surface of a long base material made of a resin; and   a step of plating the surface of the base material with a metal using a drum electrode provided in a plating tank to obtain a resin structure having a metal plating film on the surface thereof,   wherein the drum electrode is the drum electrode according to  claim 1 .   
     
     
         8 . A method for producing a metal porous body comprising:
 a step of imparting electrical conductivity to a surface of a resin molded body having a three-dimensional network structure;   a step of plating the surface of the resin molded body with a metal using a drum electrode provided in a plating tank to obtain a resin structure; and   a step of removing the resin molded body from the resin structure to obtain a metal porous body,   wherein the drum electrode is the drum electrode according to  claim 1 .