公开(公告)号：US20180148897A1

公开(公告)日：2018-05-31

申请号：US15580354

申请日：2016-05-19

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： YONG HYEON CHO ,  JIN YU CHOI ,  YUN SUK KANG ,  JOO UK KIM

IPC: E01B5/08 ,  B60B19/00 ,  B61H11/00 ,  B61C15/08

CPC classification number: E01B5/08 ,  B60B17/00 ,  B60B19/00 ,  B60B21/08 ,  B61C15/08 ,  B61H11/00 ,  C21D1/09 ,  C21D1/10 ,  C21D9/04 ,  C21D9/34 ,  C21D10/005 ,  E01B5/02 ,  Y02P10/253

Abstract: A friction apparatus is provided. The friction apparatus includes: a first member having a first surface; and a second member having a second surface that contacts the first surface, and moving while in contact with the first member, wherein at least one of the first surface and the second surface is hardened.

公开(公告)号：US20180051398A1

公开(公告)日：2018-02-22

申请号：US15552519

申请日：2016-04-07

Applicant: KOREA RAILROAD RESEARCH INSTITUTE

Inventor： CHUL MIN PARK ,  YONG HYEON CHO

IPC: D01F9/21 ,  D01F9/26

CPC classification number: D01F9/21 ,  C08J5/042 ,  C08J5/06 ,  C08J2363/00 ,  C08J2367/06 ,  C08L63/00 ,  C08L67/06 ,  D01F9/26 ,  D06M11/74 ,  D06M2101/40

Abstract: A carbon fiber layer having a carbon coating is provided. The disclosed carbon fiber layer having a carbon coating includes: a carbon fiber layer in which a plurality of carbon fibers are arrayed; and a thin carbon film layer, comprising carbon, coated on the surface of the carbon fiber layer.