公开(公告)号：US20170088791A1

公开(公告)日：2017-03-30

申请号：US15311262

申请日：2015-05-15

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Hiroki KOBAYAKAWA ,  Erina YASUDA

IPC: C10M169/04 ,  C08K3/36 ,  C08K3/34 ,  F16C33/20 ,  C08L79/08 ,  C10M103/06 ,  C10M107/38 ,  C08K3/30 ,  C08K3/08

Abstract: A resin composition for use in a sliding member, which has higher seizing resistance while maintaining abrasion resistance. The sliding resin composition includes: a resin binder; a solid lubricant; and a protecting and reinforcing agent that is harder and brittler than the resin binder. As the protecting and reinforcing agent, aggregates of particles harder than the resin binder are used. The amount of the protecting and reinforcing agent contained is 1 vol. % or more but 20 vol. % or less of the entire sliding resin composition. The particles harder than the resin binder have an average particle diameter of 10 nm or more but 100 nm or less that is smaller than that of the solid lubricant.

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：US20220154769A1

公开(公告)日：2022-05-19

申请号：US17500584

申请日：2021-10-13

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Na LI ,  Erina YASUDA

IPC: F16C33/12 ,  F16C17/02

Abstract: A sliding member includes an overlay layer made of a resin on a side of a sliding surface of a bearing alloy layer. When a valley void volume Vvv (μm3/μm2) in the sliding surface of the overlay layer is defined as Vv1, Vv1 is in a range of 0.015≤Vv1≤0.200.

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.

公开(公告)号：US20170088792A1

公开(公告)日：2017-03-30

申请号：US15311278

申请日：2015-05-15

Applicant: DAIDO METAL COMPANY LTD.

Inventor： Hiroki KOBAYAKAWA ,  Erina YASUDA

IPC: C10M169/04 ,  C08K3/36 ,  C08K3/34 ,  F16C33/20 ,  C08L79/08 ,  C10M103/06 ,  C10M107/38 ,  C08K3/30 ,  C08K3/08

CPC classification number: C10M169/04 ,  C08K3/08 ,  C08K3/30 ,  C08K3/34 ,  C08K3/36 ,  C08K2003/0806 ,  C08K2003/3009 ,  C08K2201/016 ,  C08L79/08 ,  C08L101/00 ,  C09D7/67 ,  C09D201/00 ,  C10M103/06 ,  C10M107/38 ,  C10M169/00 ,  C10M2201/0653 ,  C10M2201/0663 ,  C10M2201/102 ,  C10M2213/062 ,  C10M2213/0623 ,  C10N2220/082 ,  C10N2240/02 ,  F16C33/201 ,  F16C2360/22

Abstract: A resin composition used for a sliding member to improve seizing resistance. The sliding resin composition includes: a resin binder; a solid lubricant; and aggregates of particles. A coupling force between the particles in the aggregates is smaller than a threshold stress of the resin binder so that the aggregates exposed at a surface of the resin binder are partially detached with a force smaller than the threshold stress of the resin binder. The aggregates of the particles harder than the resin binder are used as a protecting and reinforcing agent, and the amount of the particles contained in the sliding resin composition is 1 vol. % or more but 20 vol. % or less of the entire sliding resin composition. The particles harder than the resin binder have an average particle diameter of between 10 nm and 100 nm that is smaller than that of the solid lubricant.