公开(公告)号：US5030520A

公开(公告)日：1991-07-09

申请号：US306620

申请日：1989-02-06

申请人： Marco Olper ,  Pierluigi Fracchia ,  Fulvio Redivo

发明人： Marco Olper ,  Pierluigi Fracchia ,  Fulvio Redivo

IPC分类号： C25C7/02 ,  H01B1/02

CPC分类号： H01B1/026 ,  C25C7/02 ,  Y10T428/12806 ,  Y10T428/12819 ,  Y10T428/12903

摘要： An electrical conductor is particularly suitable for use as an insoluble anode in electrowinning processes, and is composed of an inner core of copper coated with an outer, thinner layer of a transition metal, preferably selected from among tantalum, titanium and niobium. The conductor is manufactured by a process including the steps of inserting a copper bar inside a relatively thin tube made of the selected transition metal, inserting the tube containing the copper bar inside a copper tube to obtain a three-metal structure, submitting the three-metal structure to a drawing process to produce a three metal wire, and dipping the three-metal wire in a solvent to remove the outer copper layer to produce a bimetallic wire.