Component for rotary machine and rotary machine
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsToyoaki Yasui, Yoshikazu Yamada, Katsuyasu Hananaka, Satoshi Hata, Yuzo Tsurusaki, Osamu Isumi
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Abstract
A coating layer is provided on a surface of the moving blades of a rotary machine. The coating layer includes a spray layer on the base material of the moving blades and a fluorocarbon resin layer on the spray layer. The spray layer is porous. The fluorocarbon resin layer is made of fluorocarbon resin. The fluorocarbon resin layer also contains an inorganic substance that is exposed on the surface of the fluorocarbon resin layer.
Claims16
A component for use as a rotating body in a rotary machine and that comes in direct contact with a gas containing fine particles, comprising:
- a coating on a surface of the component, the coating comprising:
- a porous spray layer formed on a surface of the component, the porous spray layer having a porosity in a range of 6% to 30%;
- and
- at least one fluorocarbon resin layer formed on the spray layer, the at least one fluorocarbon resin layer comprising fluorocarbon resin and an inorganic substance, wherein, as seen in plan view, a surface occupying ratio of a first area occupied by the inorganic substance exposed at an outer surface of the fluorocarbon resin layer to a whole outer surface area of the fluorocarbon resin layer is in a range of 50% to 80%.
A rotary machine having a component used as a rotating body that comes in direct contact with a gas containing fine particles, the component comprising:
- a coating on a surface of the component, the coating comprising:
- a porous spray layer formed on a surface of the component, the porous spray layer having a porosity in a range of 6% to 30%;
- and
- at least one fluorocarbon resin layer formed on the spray layer, the at least one fluorocarbon resin layer comprising fluorocarbon resin and an inorganic substance, wherein, as seen in plan view, a surface occupying ratio of a first area occupied by the inorganic substance exposed at an outer surface of the fluorocarbon resin layer to a whole outer surface area of the fluorocarbon resin layer is in a range of 50% to 80%.
Dependencies are inferred from the claim text.