摘要:
In internal coating processes there is often the problem that an outer surface of the component to be coated is also coated. The device according to the invention consists in the fact that the outer surface is protected by a robust outer envelope and a filling material between the component to be coated and the outer envelope.
摘要:
A filler made of glass beads is provided. The glass improves the absorption and the distribution of the energy of the beam such that an internal wall of the hollow component is not damaged. A process for producing a through-hole in a hollow component is provided. Also, an apparatus for laser drilling is provided.
摘要:
The invention relates to a coating system, especially a low pressure plasma coating system, with at least one treatment chamber and a coating tool, especially a plasma spraying device, wherein at least one pump is provided for evacuation of the treatment chamber, which treatment chamber is formed to be temperature controllable. In addition there is a coating method for low pressure plasma coating with a temperature controlled and evacuated treatment chamber, in which a workpiece is coated by means of at least one coating tool. For acceleration of the coating process, especially the evacuating of the treatment chamber, it is proposed that at least the walls of the treatment chamber and/or the inside of the treatment chamber are temperature controlled at a temperature between 45° C. and 75° C.
摘要:
A two-layer system made of ceramic powder and metallic powder is provided. The ceramic powder may include zirconium oxide, aluminum oxide, titanium oxide, a perovskite, a spindle, a pyrochore and/or boron nitride and mixtures thereof. The metallic powder may include nickel, aluminum, cobalt and/or chromium, and mixtures or alloys thereof. A masking layer and a process for masking a substrate are also provided.
摘要:
A method is provided for coating a component with a multilayer ceramic coating in which the individual layers of the ceramic coating are applied covering one another on the component, and in which ceramic particles are supplied to a coating burner, melted partly or completely by the coating burner, and deposited on the component. The ceramic particles have a particle size, which increases from layer to layer, and are supplied to the coating burner. Furthermore, a multilayer ceramic coating and a component which has with a multilayer ceramic coating are provided.
摘要:
The invention relates to a method of preparing turbine blades for spray coating their blade region that is subjected to the medium flowing through during operation in a spray coating apparatus, in which the turbine blade is inserted with its blade root into a cavity of a mounting in such a way that it protrudes with the blade region that adjoins the blade root from an opening of the cavity to form a gap between the rim of the opening and the turbine blade, and in which the gap is bridged by a shielding fixed on the mounting, which is characterized in that a shielding layer of a plastic which is resistant during the spray coating is used for the shielding, the shielding layer being arranged in such a way that it reaches up to the boundary between the blade root and the blade region.
摘要:
Process for preparing turbine blades or vanes for a subsequent treatment, for example the application of a coating and/or a material-removing operation, wherein the turbine blade or vane has an airfoil, which is delimited at at least one end by an endplate with peripheral surfaces, wherein at least one of the peripheral surfaces is at least partially covered prior to the treatment of the turbine blade or vane. In the process a covering strip is fitted onto at least one peripheral surface to form a plug connection.
摘要:
The invention relates to a method of preparing turbine blades for spray coating their blade region that is subjected to the medium flowing through during operation in a spray coating apparatus, in which the turbine blade is inserted with its blade root into a cavity of a mounting in such a way that it protrudes with the blade region that adjoins the blade root from an opening of the cavity to form a gap between the rim of the opening and the turbine blade, and in which the gap is bridged by a shielding fixed on the mounting, which is characterized in that a shielding layer of a plastic which is resistant during the spray coating is used for the shielding, the shielding layer being arranged in such a way that it reaches up to the boundary between the blade root and the blade region.
摘要:
A process for coating an edge within a hole in a coated component is provided. The hole is a cooling-air hole operable conduct a coolant therethrough. According to the processes, an outer coating is provided on the outer surface of the component. An inner coating is provided on an inner surface within the hole, wherein the inner coating within the hole takes place using a coating nozzle at a different angle to the coating of the outer surface around the hole, if the spray angles for the outer coating and inner coating relate to the outer surface.
摘要:
A method for coating a substrate of a component is provided. Using the previous coating method, localized coating that can occur unexpectedly at one spot is often more difficult because the coating sequence must be reprogrammed here. This irregularity is resolved in a short period of time by a simple, manual coating.