| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing ferrules for optical fiber connectors by electroforming suitable for mass production wherein an electroforming layer can be formed uniformly on a core material surface and the drawing out work of the core wire can be performed easily without requiring skill. SOLUTION: A core wire 19 is constituted by inserting an inner core wire into an outer core tube and clamping the resultant assembly by an outer core tube holding part 16. The obtained unit is vertically fixed to a holding part 14 and dipped into an electroforming tank 4 containing nickel sulfamate, for example. Each holding part is made to rotate on its own axis with a cathode driving motor 27, and an anode disposed at the outer periphery of the holding part 14 is made to revolve around the holding part. A specified voltage and electric current are applied between the cathode and anode, ultrasonic agitation is applied to the bath, and a holding device 5 is pulled up after the lapse of a necessary time. The core wire on which electroforming is performed is removed from the holding part, and the inner core wire is drawn out by sandwitching the outer core tube holding part 16. The ferrule for the optical fiber connectors is completed by cutting the outer core tube with which electroforming formation has been carried out to a predetermined length and then finishing the core tube.
|
