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    SEAL RING
    1.
    发明公开
    SEAL RING 审中-公开

    公开(公告)号：EP3712470A1

    公开(公告)日：2020-09-23

    申请号：EP18879787.2

    申请日：2018-09-25

    申请人： NOK CORPORATION

    发明人： SATO Hiroaki

    IPC分类号： F16J15/18 ,  F16J15/3268

    摘要： A seal ring is mounted and seated in a mounting groove provided in either one of an inner peripheral member and an outer peripheral member reciprocating relative to each other and brings the seal surface into close contact with the other one to seal a fluid. The seal ring is configured by a combination of two members of an inner peripheral side ring and an outer peripheral side ring which are rubber-like elastic bodies. The hardness of one member having a seal surface of the inner peripheral side ring and the outer peripheral side ring is set to be higher than that of the other member. On the contact surface between the inner peripheral side ring and the outer peripheral side ring, a recess-projection fitting portion restricting the positional shift in the axial direction between the inner peripheral side ring and the outer peripheral side ring is provided along the annular direction.

    HNBR COMPOSITION AND HNBR CROSSLINKED BODY
    2.
    发明公开
    HNBR COMPOSITION AND HNBR CROSSLINKED BODY 有权
    HNBR-ZUSAMMENSETZUNG UND HNBR-VERNETZTERKÖRPER

    公开(公告)号：EP3124534A1

    公开(公告)日：2017-02-01

    申请号：EP15769312.8

    申请日：2015-03-20

    申请人： NOK Corporation

    发明人： AIBA Takafumi ,  MURAKAMI Hideyuki ,  UCHIDA Kenichi ,  MORIO Akira ,  SATO Hiroaki

    IPC分类号： C08L15/00 ,  C08K3/04 ,  C08K7/04 ,  F16J15/20

    CPC分类号： C08K7/06 ,  C08K3/04 ,  C08K7/10 ,  C08K2201/003 ,  C08K2201/006 ,  C08K2201/011 ,  C08L15/00 ,  F16H55/56 ,  F16J15/3284 ,  C08L15/005

    摘要： An object of the present invention is to provide an HNBR composition and an HNBR crosslinked body excellent in abrasion resistance and pressure resistance. The object is achieved by an HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite as a hard filler per 100 parts by weight of a hydrogenated nitrile rubber and containing 72 to 87 parts by weight of a carbon black having an average particle diameter of 40 to 50 nm, an iodine adsorption of 35 to 49 g/kg, and a DBP oil absorption of 100 to 160 ml/100 g, as well as an HNBR crosslinked body acquired by crosslinking the HNBR composition.

    摘要翻译： 本发明的目的是提供耐磨性和耐压性优异的HNBR组合物和HNBR交联体。 该目的通过一种HNBR组合物来实现，该组合物含有每100重量份氢化丁腈橡胶含有3-20重量份碳纤维或硅灰石作为硬质填料，并含有72-87重量份具有平均颗粒的炭黑 直径为40〜50nm，碘吸附量为35〜49g / kg，DBP吸油量为100〜160ml / 100g，HNBR组合物交联获得的HNBR交联体。

    METHOD FOR MANUFACTURING SEALING DEVICE, AND SEALING DEVICE
    5.
    发明公开
    METHOD FOR MANUFACTURING SEALING DEVICE, AND SEALING DEVICE 审中-公开
    一种用于生产油封密封装置和密封装置

    公开(公告)号：EP2916047A1

    公开(公告)日：2015-09-09

    申请号：EP13850594.6

    申请日：2013-01-31

    申请人： NOK Corporation

    发明人： SATO Hiroaki ,  MORIO Akira ,  SHOJIMA Daihachi

    IPC分类号： F16J15/18

    摘要： Provided are: a method for manufacturing a sealing device which makes it possible to improve the positioning accuracy of a parting operation while also improving manufacturing efficiency, even if the sealing device has an annular inner peripheral convex portion on its inner peripheral side, and a sealing device that is capable of achieving a better sliding property and suppressing a breakage thereof. A method includes: conducting a process for molding an elastomeric cylindrical molded body (100a) that is provided with a plurality of cylindrical surface portions (130) and a plurality of annular outer peripheral convex portions (110) arranged alternately on an outer peripheral side thereof, further provided with a plurality of cylindrical surface portions and a plurality of annular inner peripheral convex portions arranged alternately on an inner peripheral side thereof, and the cylindrical surface portions on the outer peripheral side and the cylindrical surface portions on the inner peripheral side, as well as the outer peripheral convex portions and the inner peripheral convex portions are provided so as to be at the same positions in the axial direction; and conducting a process for conducting a parting operation to the molded body (100a) along the individual cylindrical surface portions (130) on the outer peripheral side.