METHOD FOR COATING BY THERMAL SPRAYING WITH AN INCLINED PARTICLE JET

The invention relates to a method for coating a substrate (11) by thermal spraying, in particular cold-gas spraying. Here, a particle jet (13) is oriented at an inclination to the surface (14) of the substrate (11) to form a spraying angle (a). In order to increase the possible spraying angle (a) ac...

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Bibliographische Detailangaben
Hauptverfasser:	STIER, OLIVER, REICHE, RALPH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY NOZZLES PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to a method for coating a substrate (11) by thermal spraying, in particular cold-gas spraying. Here, a particle jet (13) is oriented at an inclination to the surface (14) of the substrate (11) to form a spraying angle (a). In order to increase the possible spraying angle (a) according to the invention, it is provided that the surface (14) is applied with a directional patterning, for example comprising trenches (17) and ridges (18). The orientation of this patterning is inclined by an angle of inclination (ß), specifically in the direction of the spraying angle (a). As a result, the adhesion of striking particles (12) is improved and it is possible to achieve larger spraying angles (a). L'invention concerne un procédé de revêtement d'un substrat (11) par pulvérisation thermique, en particulier par pulvérisation d'un gaz froid. Un jet de particules (13) incliné pour former un angle de pulvérisation (a) est dirigé vers la surface (14) du substrat (11). L'invention vise à agrandir l'angle de pulvérisation (a) possible. A cet effet, la surface (14) est munie d'une structuration orientée, composée par exemple de tranchées (17) et de crêtes (18). L'orientation de cette structuration est inclinée selon un angle d'inclinaison (ß), et ce dans la direction de l'angle de pulvérisation (a). L'adhérence des particules projetées (12) s'en trouve améliorée et il est possible d'atteindre de plus grands angles de pulvérisation (a).