REFRIGERANT COMPRESSOR AND REFRIGERATING DEVICE INCLUDING SAME

    公开(公告)号:US20180340717A1

    公开(公告)日:2018-11-29

    申请号:US15757934

    申请日:2016-08-26

    Abstract: A refrigerant compressor reserves lubricating oil in a sealed container, and accommodates therein 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, and an oxide coating film comprising a composition A portion, a composition B portion, and a composition C portion is provided on a slide surface of the iron-based material. The composition A portion is a portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances, and is, for example, an outermost portion (160a). The composition B portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound, and is, for example, an intermediate portion (160b). The composition C portion is a portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing silicon (Si) which is more in quantity than silicon (Si) of the composition B portion, and is, for example, an inner portion (160c).

    OXIDE COATING FORMED ON FERROUS SUBSTRATE, SLIDING MEMBER ON WHICH SAID OXIDE COATING IS FORMED, AND APPARATUS PROVIDED WITH SLIDING MEMBER

    公开(公告)号:US20180245637A1

    公开(公告)日:2018-08-30

    申请号:US15757616

    申请日:2016-08-26

    CPC classification number: F16C33/12 C23C8/10 F04B39/00 F16C2360/42

    Abstract: An oxide coating film provided on a surface of an iron-based material which is a base material of a slide member has one of the following configurations: (1) the oxide coating film comprising a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material, in a region which is closer to the base material, (2) the oxide coating film comprising: a composition A portion containing diiron trioxide (Fe2O3) which is more in quantity than other substances; a composition B portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing a silicon (Si) compound; and a composition C portion containing triiron tetraoxide (Fe3O4) which is more in quantity than other substances and containing silicon (Si) which is more in quantity than silicon (Si) of the composition B portion, and (3) the oxide coating film comprising: a first portion containing at least fine crystals; a second portion containing columnar grains, and/or a third portion containing layered grains.

    COOLANT COMPRESSOR AND REFRIGERATION DEVICE USING SAME

    公开(公告)号:US20180245576A1

    公开(公告)日:2018-08-30

    申请号:US15757620

    申请日:2016-08-26

    Abstract: A refrigerant compressor reserves lubricating oil with a viscosity of VG2 to VG100 in a sealed container, and accommodates therein an electric component and a compression component which is driven by the electric component and compresses a refrigerant. The compression component includes at least one slide member comprising a base material 171 made of an iron-based material and an oxide coating film 170 provided on a surface of the base material 171. The oxide coating film 170 includes: a portion containing diiron trioxide (Fe2O3), in a region which is closer to an outermost surface of the oxide coating film; and a silicon containing portion containing silicon (Si) which is more in quantity than silicon (Si) of the base material 171, in a region which is closer to the base material 171.

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