Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Daniel Körtvelyessy

Ralph Reiche

Ursus Krüger

Michael Rindler

Rene Jabado

Jens Dahl Jensen

Volkmar Lüthen

Raymond Ullrich

Jan Steinbach

Oliver Stier

Steffen Walter

Marc De Vogelaere

Jens Klingemann

Gabriele Winkler

Uwe Pyritz

Richard Matz

Frank Arndt

Jens Birkner

Dirk Janz

Ralph Reichle

A method for producing a cast metal piece and a cast metal piece are provided. An information element includes at least one piece of information. The information element is produced from a magnetizable material and the information is deposited n the magnetizable material and is cast into the information element during casting of the price, the casting temperature being above the Curie temperature of the magnetizable material of the information element.

Cast piece and method for producing same

In a method for producing a starting material (M, N, N') for the production of a wear layer (), a coating () with a composition which corresponds to that of the wear layer () which is to be produced is chemically undissolved from its substrate () and is detached as a solid body, and that the starting material (M, N, N&#x2032;) is formed by the layer material () of the detached coating ().

Method for producing a wear layer

In a method for depositing a non-metallic, in particular ceramic, coating on a substrate () by cold gas spraying, the method has the steps of: producing a reactive gas flow () having at least one reactive gas, injecting into the reactive gas flow () particles () consisting of at least one material required for producing a non-metallic, in particular ceramic, coating material by reaction with the reactive gas, so as to form a mixture flow of reactive gas and particles (), producing reactive gas radicals in the mixture flow, and directing the mixture flow having reactive gas radicals and particles onto a surface of a substrate () to be coated, and so a non-metallic, in particular ceramic, coating is deposited on the surface of the substrate (). In addition, a description is given of a device () for carrying out the method.

Method and device for depositing a non-metallic coating by means of cold-gas spraying

In a method for producing a component () with a coating () containing nanoparticles (), it is provided that, in order to introduce the nanoparticles () into the coating (), a film () with the dispersely distributed nanoparticles () is applied to the surface () to be coated, which decomposes with incorporation of the nanoparticles () during the actual coating operation and is thereby not incorporated into the layer.

Method for producing a component with a nanostructured coating

The turbine parts, when they are used, form oxide layers which by the undesirable rapid growth thereof generate the damage of the parts substrate. The inventive method consists in depleting the part in an element in such a way that the oxide layer is reduced.

Process for producing a component of a turbine, and a component of a turbine

There is described a substrate with a coating; the coating contains a coating matrix in whose matrix structure multilayered and/or encapsulated nanoparticles are arranged and release a dye when a limit temperature is exceeded the first time and/or trigger a color reaction which causes the color of the coating to change irreversibly.

Substrate with applied coating and production method

A method for repairing a component such as a turbine blade is provided. At the end of its operating time, the component has, for example, a depletion of aluminium in a region near the surface. The application of a repair layer is provided including particles with an increased proportion of aluminium. A subsequent heat treatment may achieve the effect of equalizing the concentration of aluminium between the repair layer and the region near the surface, and so the aluminium content required for new components is achieved again.

Method for repairing a component by coating

The invention relates to a component for arrangement in the duct of a turbine engine. The component is provided with a coating, which has a surface structure with scales which overlap each other in the direction of flow of the turbine engine. The invention also relates to a spraying method for generating a coating on a component.

Component to be arranged in the flow channel of a turbomachine and spraying method for producing the coating

In a method particles in a thermal spraying process are entrained by a carrier gas stream and deposited on a component to be coated. The particles are dispersed in a liquid or solid additive before being introduced into a supply line which issues into the thermal spraying apparatus, the additive, after leaving the supply line, being transferred into the gaseous state in the carrier gas stream. A liquid additive evaporates or a solid additive is sublimated, whereby the particles in the carrier gas stream are separated. The dispersal of the particles in the additive simplifies an exact metering and prevents the particles from forming lumps, so that improved layers can be deposited by virtue of an improved homogeneity of the carrier gas stream. As the additive has been transferred into the gaseous state, it is not deposited in the layer.

Method for feeding particles of a coating material into a thermal spraying process

A powder can be produced by immersing microparticles () in a first solution () which contains coupling molecules (), and then in a second solution () which contains the nanoparticles (), thereby producing microparticles () with nanoparticles () attached thereto. The particles form powder particles () which allow nanoparticles () that are smaller than approximately 5 [mu] to be applied to a component by cold gas spraying.

Powder for cold spraying processes

The invention relates to a cold gas spraying method with the aid of which a substrate to be coated can be coated with particles. According to the invention, it is provided that microencapsulated agglomerates of nanoparticles are used as particles. This advantageously allows the advantages that accompany the use of nanoparticles to be used for the coating. The nanoparticles are held together by microencapsulations, wherein the microencapsulated particles formed in this way that are used in the cold gas spraying method have dimensions in the micrometer range, thereby allowing them to be used in the first place in cold gas spraying The microencapsulated nanoparticles may be used for example to produce a UV protective coating on lamp bases for gas discharge lamps.

Cold gas spraying method

Short fibers in a solder or a welding material often do not have the desired strength. Fiber mats that are introduced onto a surface or into a recess of a metallic component are provided. In addition a process for applying material to a metallic component is provided. In the process, a first fiber mat and a second fiber mat are used.

Process for applying material to a component, a fiber and a fiber mat

The invention relates to a method for producing a layer () having nanoparticles (), on a substrate (). The invention is based on the object of specifying a method for producing a layer containing nanoparticles, which method can be carried out particularly easily and nevertheless offers a very wide degree of freedom for the configuration and the composition of the layer to be produced. According to the invention, this object is achieved in that nanoparticles () are released and a nanoparticle stream () is produced in a first process chamber (), the nanoparticle stream () is passed into a second process chamber (), and the nanoparticles () are deposited on the substrate () in the second process chamber ().

Method for production of a layer having nanoparticles, on a substrate

Short fibers in a solder or a welding material often do not have the desired strength. The invention uses fiber mats () which have been introduced onto a surface () or into a recess () of a metallic component.

Components which are subject to operating loads can often be passed for refurbishment by means of an acid treatment. The time for which the components remain in the acid has hitherto been determined empirically, which means that individual loads are not taken into account. The process according to the invention for the surface treatment of a component proposes that at least repeatedly a measurement voltage be applied to the component, resulting in the flow of a current, the time profile of which represents the state of the surface treatment and is used to decide upon when to terminate or interrupt the acid treatment.

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Berlin, Germany

Daniel Körtvelyessy