Patent application number | Description | Published |
20090028711 | METHOD FOR THE INDUCTIVE HIGH-FREQUENCY PRESSURE WELDING OF METALLIC STRUCTURAL ELEMENTS USING AT LEAST TWO DIFFERENT FREQUENCIES AND COMPONENT PRODUCED BY SAID METHOD - The present technology relates to a method for connecting metallic structural components, especially structural components of a gas turbine, wherein the connection of corresponding connecting surfaces of the construction elements occurs by means of an inductive high-frequency pressure welding with heating of at least one connecting surface. According to the present technology, at least two different frequencies induced by at least one inductor are used for heating the at least one connecting surface. The present technology also relates to a component, especially a component of a gas turbine consisting of a first structural element and a second structural element, whereby the first and the second structural elements are welded by means of inductive high-frequency pressure welding. According to the present technology, at least two different frequencies induced by at least one inductor are used for heating at least one connecting surface of the structural elements. | 01-29-2009 |
20090074582 | METHOD FOR JOINING METAL COMPONENTS AND DEVICE FOR EXECUTION OF AN INDUCTIVE LOW OR HIGH-FREQUENCY PRESSURE WELDING METHOD - The present technology concerns one or more methods for joining of metal components especially components of a gas turbine, in which joining of the corresponding joining surfaces of the components occurs by means of an inductive low or high-frequency pressure welding and in which, before heating and joining of the components by means of inductive low or high-frequency pressure welding, sputter etching of the joining surfaces is carried out. The present technology also concerns a device for execution of an inductive low or high-frequency pressure welding method for joining the metal components, especially components of a gas turbine, with at least one induction generator and at least one inductor, as well as a component produced with the method according to the present technology. | 03-19-2009 |
20090127254 | Induction coil, method and device for inductive heating of metallic components - An induction coil for inductive heating of at least one metallic component having at least one lateral face and at least one face to be heated is provided. The induction coil includes a meandering pattern section shaped around the at least one component in such a way that the section extends over at least a partial area of the at least one lateral face of the at least one component to be heated in the area of the at least one face to be heated. A device and method for inductive heating of at least one metallic component are also provided. | 05-21-2009 |
20090290985 | PROCESS FOR CONNECTING METALLIC STRUCTURAL ELEMENTS AND COMPONENTS PRODUCED THEREBY - A process for connecting metallic structural elements, in particular structural elements of a gas turbine, and a component made by the process, is disclosed. The connecting of corresponding connecting surfaces of the structural elements is performed by inductive high-frequency pressure welding and the structural elements consist of different or similar metallic materials with different permeabilities and/or thermal conductivities. During the inductive high-frequency pressure welding, at least one process-specific parameter is controlled in such a way that at least the connecting surfaces are respectively heated essentially simultaneously up to at least near the respective melting point of the metallic materials. | 11-26-2009 |
20090304515 | METHOD AND DEVICE FOR JOINING BY WAY OF INDUCTIVE HF PRESSURE WELDING A ROTOR BLADE WITH A ROTOR SUPPORT OF A GAS TURBINE WITH AUTOMATIC SUPPLY OF THE ROTOR BLADE - A method and a device for joining at least one rotor blade or at least one part of a rotor blade with a rotor support of a gas turbine, in particular a rotor blade connection of the rotor support, is disclosed. Corresponding connecting surfaces of the rotor blade, the rotor blade part, the rotor support or the rotor blade connection of the rotor support are joined by inductive high-frequency pressure welding. In this case, at least one rotor blade or rotor blade part is automatically supplied from at least one rotor blade reservoir and/or rotor blade part reservoir and, in addition, the rotor support is automatically positioned in such a way that the connecting surfaces to be joined are positioned precisely with respect to one another for the joining process. | 12-10-2009 |
20090324398 | DEVICE FOR CARRYING OUT AN INDUCTIVE LOW-FREQUENCY OR HIGH-FREQUENCY PRESSURE WELDING METHOD, COMPRISING AN INSULATOR LOCATED BETWEEN THE INDUCTOR AND THE COMPONENTS IN THE ZONE OF THE JOINT - A device for carrying out an inductive low-frequency or high-frequency pressure welding method for joining metallic components, in particular components of a gas turbine, having at least one generator and at least one inductor, wherein an insulator is situated at least partly between the inductor and the components, in the area of the sections that are to be joined of the components, the insulator being made of a material that, due to its specific properties, does not, or does not significantly, prevent the magnetic interaction between the inductor and the components that are to be joined, and the insulator being situated at a distance from the inductor and the components, and that the insulator is made of high-temperature-resistant quartz glass. | 12-31-2009 |
20100040455 | METHOD AND DEVICE FOR JOINING METAL ELEMENTS - A method for connecting metallic components, in particular components of a gas turbine, including: corresponding connecting surfaces of the components being connected by means of inductive HF pressure welding, and that during or after a sufficiently great heating of the connecting surfaces, the first component is moved by a definite path toward the second component, and is pressed against it and held there. | 02-18-2010 |
20100064515 | METHOD FOR REPAIRING AND/OR REPLACING INDIVIDUAL ELEMENTS OF A GAS TURBINE COMPONENT - The present invention relates to a method for repairing and/or replacing individual elements of a gas turbine component ( | 03-18-2010 |
20100098551 | METHOD AND DEVICE FOR COATING COMPONENTS OF A GAS TURBINE - The present invention relates to a method for coating components of a gas turbine, in particular for producing a wear-resistant, temperature, oxidation and/or corrosion-resistant protective coating on the component, wherein the protective coating is made of at least one solder film or slurry coating, which is connected to the corresponding region of the component by means of an inductive high-temperature soldering method. The bonded connection between the component and the solder film or slurry coating disposed on the component is achieved by locally heating the component in the region of the solder film or slurry coating to be applied, and simultaneously heating the solder film or slurry coating by means of thermal energy generated and emitted by at least one induction amplifier, wherein the induction amplifier is disposed between the inductor and the component in the region of the solder film or slurry coating. The invention further relates to a device for coating components of a gas turbine, in particular for producing a wear-resistant, temperature, oxidation and/or corrosion-resistant protective coating on the component, using at least one inductor for carrying out an inductive high-temperature soldering method for heating and bonding at least one component to at least one solder film or slurry coating forming the protective coating, wherein according to the invention at least one induction amplifier is disposed in the region of the solder film or slurry coating between the inductor and the component having the solder film or slurry coating. | 04-22-2010 |
20110002789 | METHOD FOR PRODUCING AND REPAIRING A PART, AND PART OF A GAS TURBINE - The invention relates to a method for producing and repairing a part comprising at least two joined metal components, especially components of a gas turbine. In said method, corresponding joining surfaces of the components are joined together and connected by means of a pressure welding process, a machining allowance in the area of a joining zone of the two joining surfaces is upset during the joining process, and once the two components have been joined together, the machining allowance is machined by means of a precise electrochemical machining (PECM) process until a predefined final contour of the part has been obtained. The invention further relates to a gas turbine part obtained by means of the disclosed method. | 01-06-2011 |
20110226755 | METHOD FOR JOINING COMPONENTS - A method for joining at least two components by inductive high-frequency pressure welding is disclosed. The first component has a first material structure with a first hardness and the second component has a second material structure with a second hardness which is smaller than the first hardness. Both components are inductively heated in the region of the joining surfaces and are subsequently pressed together by a compressive force. The joining surface of the first component with the first hardness, which is greater than the second hardness of the second component, is pre-contoured in a spherical, conical or convex manner prior to joining the two components. | 09-22-2011 |
20110268890 | METHOD AND DEVICE FOR INDUCTIVELY HEATING A COMPONENT | 11-03-2011 |
20120024826 | METHOD FOR WELDING TWO COMPONENTS - A method for welding two components is disclosed. In an embodiment, the method includes the following process steps. The two components are positioned such that the joining surfaces are opposite each other, at a short distance from each other. A high-frequency electrical current is conducted through the two components, heating the components at least in the region of the joining surfaces. The two components are pressed against each other such that the two joining surfaces are welded together. | 02-02-2012 |
20120027603 | DUAL BLISKS IN THE HIGH-PRESSURE COMPRESSOR - The invention relates to a high-pressure compressor of a gas turbine having at least one blisk, specifically a disk with a plurality of blades that are disposed on the disk, wherein the blisk has at least one titanium material from the group that comprises Ti-6246 and Ti-6242, wherein the materials of the disk and the blades of the blisk differ in their chemical composition and/or their microstructure. The blades are welded to the disk, in particular, by means of a pressure welding method supported by high-frequency current, whereby the current is conducted through the joint surfaces and leads to local limited melting therein. | 02-02-2012 |