PLASMA SPRAY APPARATUS

PROBLEM TO BE SOLVED: To provide a plasma spray apparatus capable of securing a sufficient cooling rate, while preventing oxidation of a thermal spray material, and preventing erosion of the apparatus.SOLUTION: A plasma spray apparatus has a plasma spray part 1 for jetting out plasma jet, a double c...

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Bibliographische Detailangaben
Hauptverfasser:	KUMAI TAKASHI, NISHIURA YUSUKE, MORIMOTO TAKAHARU
Format:	Patent
Sprache:	eng ; jpn
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:	PROBLEM TO BE SOLVED: To provide a plasma spray apparatus capable of securing a sufficient cooling rate, while preventing oxidation of a thermal spray material, and preventing erosion of the apparatus.SOLUTION: A plasma spray apparatus has a plasma spray part 1 for jetting out plasma jet, a double cylinder part 2 arranged so as to enclose plasma jet jetted out from the plasma spray part 1, and having an open tip, an inert gas spray part 3 for jetting out inert gas into a cylinder of the double cylinder part 2, a material supply part 4 for supplying a thermal spray material into the cylinder of the double cylinder part 2, and a gas supply part 5 for supplying inert gas between an outer cylinder and an inner cylinder of the double cylinder part 2.SELECTED DRAWING: Figure 1 【課題】溶射材料の酸化防止を図りつつ十分な冷却速度を確保でき、しかも装置の溶損も防止できるプラズマ溶射装置を提供する。【解決手段】プラズマジェットを噴射するプラズマ噴射部１と、プラズマ噴射部１から噴射されるプラズマジェットを囲むように配置され、先端が開放された二重円筒部２と、二重円筒部２の内筒内に不活性ガスを噴射する不活性ガス噴射部３と、二重円筒部２の内筒内に溶射材料を供給する材料供給部４と、二重円筒部２の外筒と内筒の間に不活性ガスを供給するガス供給部５とを有するプラズマ溶射装置。【選択図】図１