Abstract:
In a method for depositing a non-metallic, in particular ceramic, coating on a substrate (2) by cold gas spraying, the method has the steps of: producing a reactive gas flow (5) having at least one reactive gas, injecting into the reactive gas flow (5) particles (4) 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 (4), 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 (2) to be coated, and so a non-metallic, in particular ceramic, coating is deposited on the surface of the substrate (2). In addition, a description is given of a device (1) for carrying out the method.
Abstract:
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.
Abstract:
A powder can be produced by immersing microparticles (2) in a first solution (4) which contains coupling molecules (5), and then in a second solution (10) which contains the nanoparticles (12), thereby producing microparticles (2) with nanoparticles (12) attached thereto. The particles form powder particles (14) which allow nanoparticles (12) that are smaller than approximately 5 [mu] to be applied to a component by cold gas spraying.
Abstract:
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.
Abstract:
Short fibers in a solder or a welding material often do not have the desired strength.The invention uses fiber mats (13) which have been introduced onto a surface (10) or into a recess (7) of a metallic component.
Abstract:
A description is given of a method for depositing a non-metallic, in particular ceramic, coating on a substrate (2) by means of cold gas spraying, which comprises the method steps of: producing a reactive gas flow (5) comprising at least one reactive gas, injecting into the reactive gas flow (5) particles (4) 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 (4), producing reactive gas radicals in the mixture flow, and directing the mixture flow comprising reactive gas radicals and particles onto a surface of a substrate (2) to be coated, and so a non-metallic, in particular ceramic, coating is deposited on the surface of the substrate (2). In addition, a description is given of a device (1) for carrying out the method.
Abstract:
The invention relates to a material composition that is used for producing a coating for a component, especially a turbine component, which is made of a metallic basic material, i.e. a metal or a metal alloy. Said material composition comprises a matrix material for forming a basic coating matrix and at least one filler for adjusting desired coating proportions or coating characteristics. The matrix material can be provided especially with basic glass ceramic properties. The inventive material composition is characterized in that the matrix material and/or the filler contains nanoparticles.
Abstract:
The invention relates to a method for the electrochemical removal of a metal coating from a component. According to said method, the component is immersed in an electrolyte solution and a current is passed through the component and a secondary electrode that is in contact with the electrolyte. The current is pulsed with a routine that has a duty cycle >10 to
Abstract translation:本发明涉及从组件电化学去除金属涂层的方法。 根据所述方法,将组分浸入电解质溶液中,并使电流通过组分和与电解质接触的次级电极。 电流脉冲具有占空比> 10至<90%,5mA / cm 2至1000mA / cm 2之间的两个电流密度和5Hz至1000Hz的频率的程序。
Abstract:
Apparatus and process for removing surface regions of a component. The prior art involves removing surface regions of a metallic component by means of electrochemical processes. The electrochemical process is accelerated by the use of a current pulse generator.
Abstract:
Apparatus and process for removing surface regions of a component. The prior art involves removing surface regions of a metallic component by means of electrochemical processes. The electrochemical process is accelerated by the use of a current pulse generator.