Patent ID: 9649659
Date: 2017-05-16
CPC Classifications: B05C,B05D,B22D,B23K

Claim:
1. A method for joining a filler material to a substrate material, the method comprising: melting the filler material within a melting chamber of a crucible such that the filler material is molten, the crucible having an outlet fluidly connected to the melting chamber; holding the filler material within the melting chamber of the crucible by applying a first pressure differential across the outlet of the crucible; and releasing the filler material from the melting chamber of the crucible by applying a second pressure differential across the outlet of the crucible to deliver the filler material to a target site of the substrate material, wherein the second pressure differential has a different value than the first pressure differential, wherein the outlet comprises a nozzle fluidly connected to the melting chamber, the nozzle having a cylindrical entrance segment having a first length and fluidly connected to an opening in the crucible, a tapered segment following the cylindrical entrance segment and having a second length and tapering radially inward relative to a central longitudinal axis of the crucible, and a cylindrical outlet segment having a third length following the tapered segment.