Thermal Spraying Method and Device

A thermal spraying device includes an arrangement for generating a flame and an arrangement for injecting a powder into the flame, the flame-generating means including an end piece out of an outlet of which the flame is directed towards a substrate subjected to spraying, and the powder-injection arr...

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Bibliographische Detailangaben
Hauptverfasser:	CHOQUET ISABELLE, BJORKLUND STEFAN, JOHANSSON JIMMY, WIGREN JAN
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CHEMICAL SURFACE TREATMENT CHEMISTRY 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 DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY NOZZLES PERFORMING OPERATIONS PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING
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Beschreibung
Zusammenfassung:	A thermal spraying device includes an arrangement for generating a flame and an arrangement for injecting a powder into the flame, the flame-generating means including an end piece out of an outlet of which the flame is directed towards a substrate subjected to spraying, and the powder-injection arrangement includes a frame element that projects in the flame ejection direction from the end piece, that at least partly surrounds a flame zone extending from the end piece, and that presents an inner circumference that is larger than the inner circumference of the outlet, and at least one powder port for the introduction of a powder to the flame being arranged on the inner periphery of the frame element at a distance from the outlet of the end piece as seen in the flame ejection direction. There is provided at least one gas injection opening in the frame element, the gas injection opening being located between the outlet of the end piece and the at least one powder port as seen in the flame ejection direction.