A process of electrolytically manufacturing perforated material and perforated material so obtained.

摘要

In a process of manufacturing screen material (12) a metal matrix (11) is subjected to an electrolytic metal deposition by using an electrolytic bath containing a brightener, the liquid of the bath being forced to flow through apertures in the cathode (11) towards the anode (8). The metal deposits grow substantially perpendicular to the lands of the matrix (11) and thus form a screen (12) having apertures of approximately the same size as the apertures of the original matrix. Screen (12) can be removed from the matrix (11) 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 (11) as matrix, being fixed to cathode fixing means (4), a perforated anode (8) being fixed by anode fixing means (5) and a pump (9) for providing a forced flow of liquid through the apertures of cathode (11) towards anode (8).