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公开(公告)号：US11629755B2
公开(公告)日：2023-04-18
申请号：US17178662
申请日：2021-02-18
发明人： Shigeru Inami , Erina Yasuda , Kenji Nimura
摘要： 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.
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公开(公告)号：US11454281B2
公开(公告)日：2022-09-27
申请号：US16767309
申请日：2018-12-25
发明人： Kenji Nimura , Erina Yasuda
IPC分类号： C10M103/00 , F16C33/10 , C10M103/02 , C10M103/06 , C10M107/38 , F16C33/20 , C10N50/08
摘要： Disclosed herein is a sliding member for an internal-combustion engine of an automobile or the like. The sliding member has excellent sliding properties due to high oleophilicity of its sliding surface achieved by adjusting the surface texture of a resin layer forming the sliding surface, which makes it possible to effectively prevent wear or seizure of the sliding member and a counterpart sliding member thereof. The sliding member includes a resin layer provided on a surface of a base material, in which the resin layer has a surface roughness of 1.05 or more, preferably 1.07 or more. The mean spacing (s) between local peaks of the resin layer may be in the range of 2 μm or more but 12 μm or less, but may be preferably in the range of 2 μm or more but 10 μm or less. Further, the mean height (Rc) of the resin layer may be in the range of 0.5 μm or more but 5.0 μm or less, but may be preferably in the range of 0.5 μm or more but 3.0 μm or less.
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公开(公告)号：US10808759B2
公开(公告)日：2020-10-20
申请号：US16654954
申请日：2019-10-16
发明人： Kazuki Sakai , Shigeru Inami , Kenji Nimura
摘要： 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.
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公开(公告)号：US10125277B2
公开(公告)日：2018-11-13
申请号：US15492194
申请日：2017-04-20
发明人： Erina Yasuda , Hiroki Kobayakawa , Kenji Nimura
IPC分类号： C09D7/61 , C09D7/40 , C09D5/00 , C09D179/08 , C10M125/02 , C10M125/22 , F16C33/20 , C08K3/04 , C08K3/08 , C08K3/30 , F16C17/02
摘要： 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.
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