Abstract:
A method for making a thermal barrier coating (11), such as for gas turbine components (5) and mainly heat shields, combustion chambers or turbine wall covering panels, said thermal barrier coating (11 ) resulting from successive deposition of various numbers of layers (13, 15) which join together to form the coating (11 ), which coating (11 ) is obtained by any Thermal Spray process, including the steps of laying at least three coating layers (13), each of said layers being deposited at a different angle (τ, β, α) of the spray torch (33); said angles (τ, β, α) being defined relative to the surface to be sprayed and covering a range from 30° to 150° with respect to the tangent to the surface (3) of the component (5) to be coated. Protection also extends to the component so coated and the covering structure.
Abstract:
A method for removing ceramic coatings using a special equipment without modifying the characteristics of the substrate such as roughness and thickness and able to prepare the substrate to be recoated with a new ceramic layer, is provided. The removing of the ceramic coating without damaging the substrate characteristics is obtained by a combination of coating/substrate preheating by irradiation during or immediately before the stripping and improved solid CO 2 blasting equipment and parameters.
Abstract:
A process for surface preparation of parts to be coated using Thermal Spray or Cold Spray technologies, which is the result of a step in which the relevant surface is abraded by steel-based abrasive material, and later washing off of any residue thereof.
Abstract:
A torch (1) for thermal spraying of surface coatings, of the type that comprises a head (3) and a bracket (2) for the head (3), in which the head (3) pivots relative to the bracket (2). The invention also relates to the coatings obtained using the torch, whether of polymer, metal or ceramic materials, on any substrate coated thereby, whether of polymer, metal or ceramic or composite materials. The invention is applicable to different types of thermal spray torches, using plasma spray, combustion spray, High Velocity Oxygen Fuel (HVOF), or Low Velocity processes.
Abstract:
A method for removing ceramic coatings using a special equipment without modifying the characteristics of the substrate such as roughness and thickness and able to prepare the substrate to be recoated with a new ceramic layer, is provided. The removing of the ceramic coating without damaging the substrate characteristics is obtained by a combination of coating/substrate pre-heating by irradiation during or immediately before the stripping and improved solid CO2 blasting equipment and parameters.
Abstract:
A method for making a thermal barrier coating (11), such as for gas turbine components (5) and mainly heat shields, combustion chambers or turbine wall covering panels, said thermal barrier coating (11 ) resulting from successive deposition of various numbers of layers (13, 15) which join together to form the coating (11 ), which coating (11 ) is obtained by any Thermal Spray process, including the steps of laying at least three coating layers (13), each of said layers being deposited at a different angle (τ, β, α) of the spray torch (33); said angles (τ, β, α) being defined relative to the surface to be sprayed and covering a range from 30° to 150° with respect to the tangent to the surface (3) of the component (5) to be coated. Protection also extends to the component so coated and the covering structure.
Abstract:
A torch (1) for thermal spraying of surface coatings, of the type that comprises a head (3) and a bracket (2) for the head (3), in which the head (3) pivots relative to the bracket (2). The invention also relates to the coatings obtained using the torch, whether of polymer, metal or ceramic materials, on any substrate coated thereby, whether of polymer, metal or ceramic or composite materials. The invention is applicable to different types of thermal spray torches, using plasma spray, combustion spray, High Velocity Oxygen Fuel (HVOF), or Low Velocity processes.
Abstract:
A method for making a thermal barrier coating (11), such as for gas turbine components (5) and mainly heat shields, combustion chambers or turbine wall covering panels, said thermal barrier coating (11 ) resulting from successive deposition of various numbers of layers (13, 15) which join together to form the coating (11 ), which coating (11 ) is obtained by any Thermal Spray process, including the steps of laying at least three coating layers (13), each of said layers being deposited at a different angle (τ, β, α) of the spray torch (33); said angles (τ, β, α) being defined relative to the surface to be sprayed and covering a range from 30° to 150° with respect to the tangent to the surface (3) of the component (5) to be coated. Protection also extends to the component so coated and the covering structure.