Method for soldering a workpiece through the use of a solder curtain ; Device for carrying out the method with a molding part

• Main Authors: TRAUTWEIN, INGO, WEBER-LANIG, THOMAS, ANDIC, MUEJDAT
• Format: Patent
• Language: English; French; German
• Published: 18.02.2009
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The method for applying a thin solder layer on a workpiece, comprises guiding the workpiece diagonally through a liquid curtain of a coating medium, which consists of solder powder in granular form. The thickness of the liquid curtain is adjustable on a value, which corresponds to the grain size of the solder powder. The flow speed of the liquid curtain and the feed speed of the workpiece are adjustable to each other for obtaining an optimal solder layer thickness. The workpiece is degreased before coating through heat supply. The method for applying a thin solder layer on a workpiece, comprises guiding the workpiece diagonally through a liquid curtain of a coating medium, which consists of solder powder in granular form. The thickness of the liquid curtain is adjustable on a value, which corresponds to the grain size of the solder powder. The flow speed of the liquid curtain and the feed speed of the workpiece are adjustable to each other for obtaining an optimal solder layer thickness. The workpiece is degreased before coating through heat supply. The workpiece is dried as a result of heat reception and heat storage through heat. Independent claims are included for: (1) device for applying a thin solder layer on a workpiece; and (2) a workpiece. Die Erfindung betrifft ein Verfahren zum Aufbringen einer dünnen Lotschicht (10a) auf ein Werkstück (10). Die Erfindung betrifft auch eine Vorrichtung (1) zur Durchführung des Verfahrens. Es wird vorgeschlagen, dass das Werkstück (9) quer durch einen Flüssigkeitsvorhang (12) eines Beschichtungsmediums (11), welches ein in vorzugsweise körniger Form vorliegendes Lot (Lotpulver) enthält, geführt wird. Die Vorrichtung (1) zur Durchführung des Beschichtungsverfahrens umfasst einen Gießbehälter (2), aus dem der Flüssigkeitsvorhang (12) austritt, und einen Vorlagebehälter (3), aus welchem der Gießbehälter (2) mit einem Beschichtungsmedium (11) beschickt wird.