Electroplating cathodic matrix through apertures to form screen

Details Electroplating cathodic matrix through apertures to form screen Electroplating cathodic matrix through apertures to form screen

C - Chemistry, Metallurgy

25

D

204/122, 204/15,

C25D 1/08 (2006.01)

Patent

CA 1215933

ABSTRACT OF THE DISCLOSURE In a process of manufacturing screen material a metal matrix is subjected to an electrolytic metal deposi- tion by using an electrolytic bath containing a brightener, the liquid of the bath being forced to flow through aper- tures in the cathode from the cathode toward the anode or vice versa. The metal deposits grow substantially perpendi- cular to the lands of the matrix and so form a screen having apertures of approximately the same size as the apertures of the original matrix. The screen can be removed from the matrix by previously coating the latter with a separating agent such as beeswax. An installation for performing the process of the invention comprises a perforated cathode as matrix being fixed to cathode fixing means, a perforated anode being fixed to anode fixing means and a pump for pro- viding a forced flow of liquid through the apertures of the cathode from the cathode toward the anode or vice versa.

386732

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