公开(公告)号：US20190292634A1

公开(公告)日：2019-09-26

申请号：US16463878

申请日：2017-11-30

Applicant: NIPPON STEEL CORPORATION ,  FINE SINTER CO., LTD.

Inventor： Manabu KUBOTA ,  Kazutaka ASABE ,  Yuki ICHIKAWA ,  Takeshi NAKANO ,  Tokitake OKAHIRA ,  Isao SHIMAZOE

IPC: C22C32/00 ,  C22C1/05

Abstract: There is provided a sintered friction material for railway vehicles that has excellent frictional properties and wear resistance even in a high speed range of 280 km/hour or more. The sintered friction material for railway vehicles is a green compact sintered material containing, in mass %, Cu: 50.0 to 75.0%, graphite: 5.0 to 15.0%, one or more selected from the group consisting of magnesia, zircon sand, silica, zirconia, mullite, and silicon nitride: 1.5 to 15.0%, one or more selected from the group consisting of W and Mo: 3.0 to 30.0%, and one or more selected from the group consisting of ferrochromium, ferrotungsten, ferromolybdenum, and stainless steel: 2.0 to 20.0%, with the balance being impurities.

公开(公告)号：US20200038959A1

公开(公告)日：2020-02-06

申请号：US16603520

申请日：2017-04-07

Applicant: NIPPON STEEL CORPORATION ,  FINE SINTER CO., LTD.

Inventor： Manabu KUBOTA ,  Naomitsu MIZUI ,  Fumio ISHIMOTO ,  Kazutaka ASABE ,  Osamu KANDA ,  Satoru NAKANO ,  Takeshi NAKANO ,  Kazumichi KAWASAKI ,  Isao SHIMAZOE

IPC: B22F7/00 ,  B22F1/00 ,  C22C1/04 ,  C22C1/05 ,  F16D69/02

Abstract: A sintered friction material is formed by pressure sintering mixed powder at 800° C. or above, the mixed powder consisting of, in mass %, Cu and/or Cu alloy: 40.0 to 80.0%, Ni: 0% or more and less than 5.0%, Sn: 0 to 10.0%, Zn: 0 to 10.0%, VC: 0.5 to 5.0%, Fe and/or Fe alloy: 2.0 to 40.0%, lubricant: 5.0 to 30.0%, metal oxide and/or metal nitride: 1.5 to 30.0%, and the balance being impurity.

公开(公告)号：US20190024735A1

公开(公告)日：2019-01-24

申请号：US16064478

申请日：2016-12-21

Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION ,  FINE SINTER CO., LTD.

Inventor： Takahiro FUJIMOTO ,  Atsushi SAKAGUCHI ,  Kazutaka ASABE ,  Kazumichi KAWASAKI ,  Takeshi NAKANO ,  Tokitake OKAHIRA ,  Yasushi KARINO ,  Hajime TAKAMI

IPC: F16D65/097 ,  B61H5/00 ,  F16D55/02 ,  F16D65/092 ,  F16D69/04

Abstract: This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.