摘要:
The cold spraying process according to the invention uses cold gas streams whose properties (temperature (T), particle density (p), pressure (p), particle velocity (v)) are variably changed such that they can be adapted to the desired properties of the coatings.
摘要:
The invention relates to a process for cleaning passages in workpieces, in particular cooling-air passages in turbine components, such as transition pieces or turbine blades or vanes, wherein the workpiece having the passages is immersed in a liquid bath and a liquid is suddenly forced under pressure through the passages.
摘要:
The invention relates to a method of, and a nozzle arrangement for, spraying cold gas. The nozzle arrangement has a first nozzle and a second nozzle, which is arranged within the first nozzle. The first nozzle is fed a gas which optionally contains particles. The second nozzle is fed a particle-containing gas. The particles are applied to a surface of the substrate by means of the gases.
摘要:
A method is disclosed for producing a chemoactive useful layer and sensor is disclosed, including a chemoactive useful layer. In at least one embodiment, a method is disclosed for producing a chemoactive useful layer. In at least one embodiment, nanoparticles having a catalytic action are introduced into the useful layer.
摘要:
Inner coatings according to the prior art often do not produce a uniform coating. The method according to the invention for the coating of a component with a cavity is characterized in that a coating material is mixed with a carrier material and introduced into the cavity, the carrier material decomposing at the evaporating temperature of the coating material, or has already decomposed, and the coating material being deposited from the gas phase on the component.
摘要:
The invention relates to a method for producing a layer (110) having nanoparticles (40), on a substrate (100). 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 (40) are released and a nanoparticle stream (50) is produced in a first process chamber (10), the nanoparticle stream (50) is passed into a second process chamber (80), and the nanoparticles (40) are deposited on the substrate (100) in the second process chamber (80).
摘要:
A cladding (22) for a wall (12) includes a barrier layer (24) that can be deformed by the action of a polymer actuator (14). According to the invention, a contact surface (A) of the cladding lies completely against the wall, at least in the non-deformed state, stabilising the intrinsically elastic wall cladding. For example, the wall cladding can be fixed to the wall (12) in the form of lamellae (22), at respective points, in such a way that the activation of the polymer actuator (14) causes the lamellae (22) to bend, thus permitting, for example, a layer (25) of ice to be detached from the cladding. Alternatively, the cladding can also be configured from a membrane actuator, which is fixed at points, or by its entire surface to the wall (12).
摘要:
A cladding (22) for a wall (12) includes a barrier layer (24) that can be deformed by the action of a polymer actuator (14). According to the invention, a contact surface (A) of the cladding lies completely against the wall, at least in the non-deformed state, stabilizing the intrinsically elastic wall cladding. For example, the wall cladding can be fixed to the wall (12) in the form of lamellae (22), at respective points, in such a way that the activation of the polymer actuator (14) causes the lamellae (22) to bend, thus permitting, for example, a layer (25) of ice to be detached from the cladding. Alternatively, the cladding can also be configured from a membrane actuator, which is fixed at points, or by its entire surface to the wall (12).
摘要:
A transport system for dry nanoparticles (18b). According to the invention, the nanoparticles (18b) are magnetized or electrically charged for transportation, a magnetic or electrical field is produced by a field generator (20a, 20) in the transport channel, and the nanoparticles (18b) migrate through the transport channel (12). The nanoparticles can be discharged through a discharge opening (13) which enables dosing to take place. In order to agglomerate the nanoparticles (18b) or to prevent attachment onto the inner wall (26), a coating (27) of the wall can be offset in oscillations by piezo electric actuators (28), the oscillations being transferred to the nanoparticles (18b). The dry nanoparticles can be handled in an advantageous manner due to the transport system, such that the dry nanoparticles need not be treated as a suspension.
摘要:
A transport system for dry nanoparticles (18b). According to the invention, the nanoparticles (18b) are magnetized or electrically charged for transportation, a magnetic or electrical field is produced by a field generator (20a, 20) in the transport channel, and the nanoparticles (18b) migrate through the transport channel (12). The nanoparticles can be discharged through a discharge opening (13) which enables dosing to take place. In order to agglomerate the nanoparticles (18b) or to prevent attachment onto the inner wall (26), a coating (27) of the wall can be offset in oscillations by piezo electric actuators (28), the oscillations being transferred to the nanoparticles (18b). The dry nanoparticles can be handled in an advantageous manner due to the transport system, such that the dry nanoparticles need not be treated as a suspension.