公开(公告)号：US20200124099A1

公开(公告)日：2020-04-23

申请号：US16654954

申请日：2019-10-16

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Kazuki SAKAI ,  Shigeru INAMI ,  Kenji NIMURA

IPC: F16C33/20 ,  F16C33/06

Abstract: A sliding member of the present embodiment includes a bearing alloy layer and a coating layer provided on a sliding surface side thereof. The coating layer has a resin binder with sulfide particles dispersed therein. A covering portion is provided over specific particles and is made of metal oxide comprising the same metal element as a metal element constituting the sulfide particles. When measured by an X-ray photoelectron spectroscopy and an X-ray diffraction method, a ratio of a peak height of the metal oxide to a peak height of metal sulfide by the X-ray photoelectron spectroscopy is from 0.10 to 0.50, and a ratio of the peak height of the metal oxide to the peak height of the metal sulfide by the X-ray diffraction method is 0.10 or less.

公开(公告)号：US20220381292A1

公开(公告)日：2022-12-01

申请号：US17774069

申请日：2020-11-27

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Tetsuya OGAWA ,  Erina YASUDA ,  Kenji NIMURA

IPC: F16C33/20

Abstract: A sliding member includes a resin overlay layer on a sliding-surface side of a bearing alloy layer. The resin layer includes a resin binder and 20% by volume or more of solid lubricant particles with an anisotropic shape dispersed in the resin binder. The sliding surface is located at 0° and has a virtual axis perpendicular to the sliding surface at 90°. An angle θ is formed by a straight line and a major axis of the particles. The total number of the particles in a observation region is N. A rate R1=N1/N of the number N1 of first particles at the angle θ of 70°≤θ≤90° from among the particles is 3%≤R1≤20%, and a rate R2=N2/N of the number N2 of second particles with the angle θ being θ≤20° is 35%≤R2≤65%.

公开(公告)号：US20210301872A1

公开(公告)日：2021-09-30

申请号：US17178662

申请日：2021-02-18

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Shigeru INAMI ,  Erina YASUDA ,  Kenji NIMURA

IPC: F16C33/12 ,  F16C17/02 ,  F16C33/10

Abstract: A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5.

公开(公告)号：US20170313893A1

公开(公告)日：2017-11-02

申请号：US15492194

申请日：2017-04-20

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Erina YASUDA ,  Hiroki KOBAYAKAWA ,  Kenji NIMURA

IPC: C09D7/12 ,  C09D179/08 ,  C10M125/02 ,  C10M125/22 ,  C09D5/00 ,  C08K3/04 ,  C08K3/08 ,  C08K3/30

CPC classification number: C09D7/61 ,  C08K3/042 ,  C08K3/08 ,  C08K3/30 ,  C08K2003/0806 ,  C08K2003/0812 ,  C08K2003/0837 ,  C08K2003/085 ,  C08K2003/3009 ,  C08K2201/003 ,  C08K2201/005 ,  C08K2201/016 ,  C09D5/00 ,  C09D7/69 ,  C09D179/08 ,  C10M125/02 ,  C10M125/22 ,  C10M2201/041 ,  C10M2201/065 ,  C10M2201/066 ,  F16C17/02 ,  F16C33/201 ,  F16C33/205 ,  F16C33/206 ,  F16C2360/22

Abstract: Disclosed herein is a sliding member that has a coating layer serving as a sliding surface thereof so that even when foreign matter enters between the coating layer and a partner member, smoothness between them is maintained to prevent the occurrence of seizing. When the coating layer has an elastic recovery ratio of less than 60%, foreign matter that has entered between the coating layer and the sliding surface of a partner member is efficiently embedded in the coating layer. When the coating layer is formed of a resin composition, the resin composition contains a binder resin, a solid lubricant, and metal particles having a Young's modulus of 10 GPa or more but 100 GPa or less.