Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POWER FOR THERMAL SPRAYING, THERMAL SPRAYING METHOD, AND THERMALLY SPRAYED COATING
To provide powder for thermal spraying, a method of thermal spraying, and a thermally sprayed coating, which can efficiently work supplying of a dry state powder by using a powder supplying apparatus with a thermal spraying apparatus, and which prevent variation and pulsation or lowering of supplied amount of powder and achieve a required film forming rate, and can obtain a denser coating on the surface of the substrate to be thermally sprayed. [Solution] Powder for thermal spraying 1 is a powder mixture obtained by mixing ceramic powder A whose particle diameter is D1 and ceramic powder B whose particle diameter is D2, wherein D1 is 0.5 to 12 μm as a median diameter, D2 is 0.003 to 0.100 μm as an average particle diameter converted from the BET specific surface area, and when, in the powder mixture, the total weight of the ceramic powder A to be used whose prescribed particle diameter D1 is W1, and the total weight of the ceramic powder B to be added to the ceramic powder A is W2, an addition ratio Y of the ceramic powder B defined by Y=W2/(W1+W2) satisfies: Y≥0.2066×D1−0.751 and Y≤0.505×D1−0.163.
POWER FOR THERMAL SPRAYING, THERMAL SPRAYING METHOD, AND THERMALLY SPRAYED COATING
To provide powder for thermal spraying, a method of thermal spraying, and a thermally sprayed coating, which can efficiently work supplying of a dry state powder by using a powder supplying apparatus with a thermal spraying apparatus, and which prevent variation and pulsation or lowering of supplied amount of powder and achieve a required film forming rate, and can obtain a denser coating on the surface of the substrate to be thermally sprayed. [Solution] Powder for thermal spraying 1 is a powder mixture obtained by mixing ceramic powder A whose particle diameter is D1 and ceramic powder B whose particle diameter is D2, wherein D1 is 0.5 to 12 μm as a median diameter, D2 is 0.003 to 0.100 μm as an average particle diameter converted from the BET specific surface area, and when, in the powder mixture, the total weight of the ceramic powder A to be used whose prescribed particle diameter D1 is W1, and the total weight of the ceramic powder B to be added to the ceramic powder A is W2, an addition ratio Y of the ceramic powder B defined by Y=W2/(W1+W2) satisfies: Y≥0.2066×D1−0.751 and Y≤0.505×D1−0.163.
POWER FOR THERMAL SPRAYING, THERMAL SPRAYING METHOD, AND THERMALLY SPRAYED COATING
KITAMURA JUNYA (Autor:in) / FUJIMORI KAZUYA (Autor:in) / WADA TETSUYOSHI (Autor:in)
03.05.2018
Patent
Elektronische Ressource
Englisch
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