Abstract:
Verfahren zum Verschließen von einer Öffnung einer Turbinenschaufel Die Erfindung betrifft ein Verfahren zum Verschließen von einer Öffnung (7) einer Turbinenschaufel (1), mit den Schritten: - schichtweises Auftragen eines Grundwerkstoffes (14), aus dem die Turbinenschaufel (1) gefertigt ist, und eines Lotwerkstoffes (15), zum Verschließen der Öffnung (7), und - Hochtemperaturlöten der Turbinenschaufel (1).
Abstract:
The present application relates to a reflow soldering oven (1) for soldering an electronic circuit board (300), the oven (1) comprising a gas purification system (11, 21) for purifying gas that contains flux components vaporized from the electronic circuit board (300). The gas purification system further comprises at least one gas purification unit (11, 21) comprising a catalyst unit comprising a catalyst material. The invention further relates to a corresponding reflow soldering method.
Abstract:
One aspect provides a method of securing a feedthrough to a metal housing for an implantable medical device. The feedthrough is provided comprising an insulating section and at least one conductive section extending through the insulating section. At least a portion of the insulating section is metalized and the metalized feedthrough is placed within an opening in the metal housing of the implantable medical device. The feedthrough and metal housing are positioning within an ultrasonic welding system and the ultrasonic welding system is energized such that sonic energy welds the feedthrough directly to the metal housing. The temperature of the metal housing is not raised above the β-transus temperature of the metal housing during the ultrasonic welding.
Abstract:
The invention relates to a method of producing a permanently joined plate heat exchanger (1) comprising a plurality of metal heat exchanger plates (2) having a solidus temperature above 1000 °C, provided beside each other and forming a plate package (3) with first plate interspaces (4) for a first medium and second plate interspaces (5) for a second medium, wherein the first and second plate interspaces (4,5) are provided in an alternating order in the plate package (3), wherein each heat exchanger plate (2) comprises a heat transfer area (10) and an edge area (11) comprising bent edges(15) which extend around the heat transfer area (10), wherein a first surface (16) of the plates (2) forms a convex shape and a second surface (17) of the plates forms a concave shape, wherein the heat transfer area (10) comprises a corrugation of elevations (18) and depressions (19), wherein said corrugation of the plates and the bent edges (15) are provided by pressing the plates. The invention also relates to a plate heat exchanger (1) produced by the method.