| 摘要 |
PURPOSE:To enhance the contact stability between a roll surface and an electrically conductive material to prevent an arc spot by forming at least a part of the conductive roll to be brought into contact with the sheet conductive material with a nonwoven sheet of conductive fibers. CONSTITUTION:The sheet conductive material is contact-guided by the conductive roll 10 provided on the inside or outside of an electrolytic cell (not shown in the figure), an electric current is applied through the roll, and the material is electrolyzed. At least a part of the conductive roll 10 to be brought into contact with the conductive material is formed with the nonwoven sheet 18 of the conductive fibers. The nonwoven sheet 18 is prepared in the form of a flange, and plural sheets are laminated on a core metal 12 and clamped by nuts 14 and 14 from both ends in the axial direction to form a roll drum 16. Besides, SUS, Al, Cu, Ni, Ti, Ta, Nb, and C respectively, their alloy, or the composite material of the elements are preferably used as the base material for the nonwoven sheet 18. |
