Electroplating conductor roll

Abstract

The purpose of the present invention is to provide an electroplating conductor roll with excellent high temperature abrasion resistance and corrosion resistance and excellent high temperature hardness. In an electroplating conductor roll, a composite carbide cermet-based thermally sprayed coating, which includes a composite carbide of WC and Cr 3 C 2 , and a ternary intermetallic compound binder metal of Cr, Ni and W, is formed on the surface of a metal roll. When the thermally sprayed coating is 100 mass %, the content of the composite carbide is 55-93 mass % and the content of the ternary intermetallic compound is 7-45 mass %. When the composite carbide is 100 mass %, the content of WC is 64-85 mass % and the content of Cr 3 C 2 is 15-36 mass %.

1 . A conductor roll for electroplating, comprising a composite carbide cermet-based thermally-sprayed coating formed on a surface of a metal roll, the composite carbide cermet-based thermally-sprayed coating including a composite carbide comprising WC and Cr 3 C 2 , and a ternary intermetallic compound comprising Cr, Ni, and W as a binder metal. 
     
     
         2 . The conductor roll for electroplating according to  claim 1 , wherein, when the thermally-sprayed coating is 100 mass %, the composite carbide is contained in an amount of 55 to 93 mass %, and the ternary intermetallic compound is contained in an amount of 7 to 45 mass %. 
     
     
         3 . The conductor roll for electroplating according to  claim 1 , wherein, when the composite carbide is 100 mass %, the WC is contained in an amount of 64 to 85 mass %, and the Cr 3 C 2  is contained in an amount of 15 to 36 mass %.