Lochscheibe und Ventil mit einer Lochscheibe

摘要

The invention concerns a perforated disc characterized in that it has a continuous passage for a fluid, said passage being composed of inlet openings (40), outlet openings (42) and at least one duct (cavity) (41) disposed therebetween. The at least three operating planes (35, 36, 37) of the perforated disc (23), each having a characteristic opening structure (40, 41, 42), are formed one on top of the other by galvanic metal deposition (multilayer electroplating) such that the perforated disc (23) has an integral structure. Since the perforated disc (23) is to have a low available surface area but should not be throttled hydraulically, the inlet openings (40) are formed so that their peripheries are as large as possible. The perforated disc (23) is particularly suitable for use in injection valves, paint-spray nozzles, inhalers, inkjet printers or in freeze-drying processes, for spraying or injecting fluids, or for atomizing medicaments.