公开(公告)号：EP3124534A4

公开(公告)日：2017-11-08

申请号：EP15769312

申请日：2015-03-20

申请人： NOK CORP

发明人： AIBA TAKAFUMI ,  MURAKAMI HIDEYUKI ,  UCHIDA KENICHI ,  MORIO AKIRA ,  SATO HIROAKI

IPC分类号： C08K3/04 ,  C08K7/06 ,  C08K7/10 ,  C08L15/00 ,  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.

公开(公告)号：EP2916047A4

公开(公告)日：2016-06-29

申请号：EP13850594

申请日：2013-01-31

申请人： NOK CORP

发明人： SATO HIROAKI ,  MORIO AKIRA ,  SHOJIMA DAIHACHI

IPC分类号： F16J15/18

CPC分类号： B29C45/0053 ,  B29C2793/0027 ,  B29C2793/009 ,  B29K2101/00 ,  B29L2031/265 ,  F16J15/108 ,  F16J15/3204 ,  F16J15/328 ,  F16J15/56

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.

摘要翻译： 提供：一种密封装置的制造方法，即使密封装置在其内周侧具有环状的内周凸部，也能够提高分离动作的定位精度，同时也能够提高制造效率， 能够获得更好的滑动性并抑制其破裂的装置。 一种方法包括：进行用于模制弹性体圆柱形模制体（100a）的工艺，所述弹性体圆柱形模制体（100a）在其外周侧上交替布置有多个圆柱形表面部分（130）和多个环形外周凸出部分（110） 还设置有多个圆筒形表面部分和在其内周侧上交替布置的多个环形内周凸部，以及外周侧的圆筒形表面部分和内周侧的圆柱形表面部分，如 并且外周凸部和内周凸部设置成在轴向上处于相同的位置; 并且沿着外周侧的各个圆柱形表面部分（130）进行对成形体（100a）的分离操作的处理。