Refrigerant compressor and refrigeration device including refrigerant compressor
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYoshinori Ishida, Shingo Oyagi, Hiroyuki Fukuhara, Hirotaka Kawabata
Life of this patent
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Abstract
A refrigerant compressor comprises an electric component; and a compression component which is driven by the electric component and compresses a refrigerant. At least one of slide members included in the compression component is made of an iron-based material. An oxide coating film (150) is provided on a slide surface of the iron-based material, the oxide coating film including a first portion (151), a second portion (152), and/or a third portion (153). The first portion (151) contains at least fine crystals (155). The second portion (152) contains columnar grains (156). The third portion (153) contains layered grains (157).
Claims14
A refrigerant compressor comprising:
- an electric component;
- and
- a compression component which is driven by the electric component and compresses a refrigerant,
- wherein at least one of slide members included in the compression component is made of an iron-based material, and an oxide coating film is provided on a slide surface of the iron-based material, the oxide coating film including a first portion containing at least crystals having a crystal grain size in a range of 0.001 μm to 1 μm, a second portion containing columnar grains, and a third portion containing layered grains, and
- wherein the oxide coating film comprises at least the first portion located in an outermost surface of the oxide coating film, the second portion located under the first portion, and the third portion located under the second portion.
Dependencies are inferred from the claim text.