Producing inorganic converters, by providing mixture from powdered glass and powdered phosphor, producing converter strand by extrusion of mixture, introducing mixture and molded body into device, and separating extruded converter strand

摘要

The method of producing inorganic converters (6), comprises: providing a mixture (3) from a powdered glass (1) and a powdered phosphor (2); producing a converter strand (5) by an extrusion (10) of the mixture through a device; introducing the mixture into the device for extruding or by molding a molded body from the mixture; introducing the molded body into the device so that the molded body is extruded; and separating the extruded converter strand for providing an individual converter or cutting the extruded converter strand. The method of producing inorganic converters (6), comprises: providing a mixture (3) from a powdered glass (1) and a powdered phosphor (2); producing a converter strand (5) by an extrusion (10) of the mixture through a device; introducing the mixture into the device for extruding or by molding a molded body from the mixture; introducing the molded body into the device so that the molded body is extruded; separating the extruded converter strand for providing an individual converter or cutting the extruded converter strand; separating a cut-to-length converter strand for providing the individual converter; arranging the cut-to-length converter strand to a group by a detachable connection of a grouped converter strand to a bundle by an unit for connecting; feeding the bundle to a separation device; and separating the bundle on a target size of the converter. The mixture is provided with a binding agent and/or an additive, which comprises a plasticizer, a lubricant and/or a wetting agent. The step of molding the molded body comprises pressing the mixture. The step of pressing is carried out: uniaxially; cold isostatically; and/or hot isostatically, where the molded and/or pressed molded body is sintered and pressure-supported. The step of providing and/or introducing the mixture and/or the molded body are heated: into the device so that the mixture or the molded body is deformable; and in a portion of the device to a temperature at which the glass has a viscosity of 10 2-10 9dPas. The extruded converter strand, the cut-to-length converter strand and/or an isolated converter: of a heat treatment are applied so that a deformation of the isolated converter is correctable; are heated to a temperature at which the glass has a viscosity of 10 4-10 13dPas. The binding agent is removable from the mixture, the extruded converter strand, the cut-to-length converter strand and/or the isolated converter. The binding agent is removed by dissolving the binding agent. An independent claim is included for a converter such as an inorganic converter.