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1. 发明授权

US09849511B2 Method of producing a Cu-based sintered sliding member 有权
公开(公告)号：US09849511B2
公开(公告)日：2017-12-26
申请号：US14520479
申请日：2014-10-22
申请人： Diamet Corporation
发明人： Yoshinari Ishii , Tsuneo Maruyama , Yoshiki Tamura
IPC分类号： B22F3/26 , C22C1/04 , C22C9/02 , C22C9/06 , C22C32/00 , F16C33/12 , B22F1/00 , B22F3/12 , B22F5/00 , B22F3/24
CPC分类号： B22F3/26 , B22F1/007 , B22F3/12 , B22F5/00 , B22F2003/248 , B22F2301/10 , B22F2302/40 , B22F2302/45 , C22C1/0425 , C22C9/02 , C22C9/06 , C22C32/0084 , C22C32/0089 , F16C33/121
摘要： A Cu-based sintered sliding member that can be used under high-load conditions. The sliding member is age-hardened, including 5 to 30 mass % Ni, 5 to 20 mass % Sn, 0.1 to 1.2 mass % P, and the rest including Cu and unavoidable impurities. In the sliding member, an alloy phase containing higher concentrations of Ni, P and Sn than their average concentrations in the whole part of the sliding member, is allowed to be present in a grain boundary of a metallic texture, thereby achieving excellent wear resistance. Hence, without needing expensive hard particles, there can be obtained, at low cost, a Cu-based sintered sliding member usable under high-load conditions. Even more excellent wear resistance is achieved by containing 0.3 to 10 mass % of at least one solid lubricant selected from among graphite, graphite fluoride, molybdenum disulfide, tungsten disulfide, boron nitride, calcium fluoride, talc and magnesium silicate mineral powders.

2. 发明授权

US10843264B2 Molding die and molding method 有权
公开(公告)号：US10843264B2
公开(公告)日：2020-11-24
申请号：US16081723
申请日：2017-03-03
申请人： Diamet Corporation
发明人： Tsuneo Maruyama , Yoshiki Tamura , Hideo Sakai
IPC分类号： B29C43/02 , B22F3/03 , B30B11/02 , B22F3/02 , B22F3/00
CPC分类号： B22F3/03 , B22F3/003 , B22F3/02 , B30B11/02 , B22F2003/033
摘要： A molding die includes a first die having a through-hole; a second die inserted into the through-hole and configured to be movable relative to the first die; and first and second punches configured to be insertable into the through-hole, wherein an undercut molding part is provided on the second die, and a molding target is compression-molded in a cavity surrounded by inner side walls of the through-hole, the second die, the first punch, and the second punch.

3. 发明授权

US10865828B2 Oil-impregnated sintered bearing 有权
公开(公告)号：US10865828B2
公开(公告)日：2020-12-15
申请号：US16335532
申请日：2017-10-26
申请人： Diamet Corporation
发明人： Yoshiki Tamura , Shinichi Takezoe
IPC分类号： F16C17/02 , F16C33/10 , F16C33/12 , B22F5/10
CPC分类号： F16C17/02 , B22F5/10 , F16C33/10 , F16C33/12
摘要： An oil-impregnated sintered bearing in which a Fe—Cu-based sintered body is impregnated with a lubricant and which has a bearing hole that is configured to support a rotary shaft inserted therethrough, in which an inner circumferential surface of the bearing hole includes at least a first region including a central portion in a shaft direction and a second region forming a portion from a first end portion of the first region to a first opening of the bearing hole, and, in a friction surface of the second region, an area of a Fe phase is larger and an area of a Cu phase formed of Cu powder including Cu-based flat raw material powder is smaller than those in a friction surface of the first region.

4. 发明申请

US20150037196A1 Cu-BASED SINTERED SLIDING MEMBER 审中-公开
标题翻译：基于Cu的烧结滑动构件
公开(公告)号：US20150037196A1
公开(公告)日：2015-02-05
申请号：US14520479
申请日：2014-10-22
申请人： DIAMET CORPORATION
发明人： Yoshinari Ishii , Tsuneo Maruyama , Yoshiki Tamura
IPC分类号： B22F3/26 , B22F1/00 , B22F5/00 , B22F3/12
CPC分类号： B22F3/26 , B22F1/007 , B22F3/12 , B22F5/00 , B22F2003/248 , B22F2301/10 , B22F2302/40 , B22F2302/45 , C22C1/0425 , C22C9/02 , C22C9/06 , C22C32/0084 , C22C32/0089 , F16C33/121
摘要： A Cu-based sintered sliding member that can be used under high-load conditions. The sliding member is age-hardened, including 5 to 30 mass % Ni, 5 to 20 mass % Sn, 0.1 to 1.2 mass % P, and the rest including Cu and unavoidable impurities. In the sliding member, an alloy phase containing higher concentrations of Ni, P and Sn than their average concentrations in the whole part of the sliding member, is allowed to be present in a grain boundary of a metallic texture, thereby achieving excellent wear resistance. Hence, without needing expensive hard particles, there can be obtained, at low cost, a Cu-based sintered sliding member usable under high-load conditions. Even more excellent wear resistance is achieved by containing 0.3 to 10 mass % of at least one solid lubricant selected from among graphite, graphite fluoride, molybdenum disulfide, tungsten disulfide, boron nitride, calcium fluoride, talc and magnesium silicate mineral powders.
摘要翻译：可在高负荷条件下使用的Cu基烧结滑动件。滑动构件经时效硬化，其中包括5至30质量％的Ni，5至20质量％的Sn，0.1至1.2质量％的P，其余包括Cu和不可避免的杂质。在滑动构件中，允许在金属组织的晶界中存在Ni，P和Sn的含量高于其在滑动构件的整个部分中的平均浓度的合金相，从而获得优异的耐磨性。因此，在不需要昂贵的硬质颗粒的情况下，可以以低成本获得可在高负载条件下使用的Cu系烧结滑动构件。通过含有0.3〜10质量％的选自石墨，氟化石墨，二硫化钼，二硫化钨，氮化硼，氟化钙，滑石粉和硅酸镁矿物粉末中的至少一种固体润滑剂，可以获得更优异的耐磨性。

5. 发明授权

US11446737B2 Molding die and molding method 有权
公开(公告)号：US11446737B2
公开(公告)日：2022-09-20
申请号：US16306349
申请日：2017-08-15
申请人： Diamet Corporation
发明人： Tsuneo Maruyama , Yoshiki Tamura , Hideo Sakai
IPC分类号： B22F5/10 , B30B11/02 , B22F3/03
摘要： The molding die of the invention includes: a first die having a through-hole; a second die inserted into the through-hole and capable of moving relative to the first die; and a first punch and a second punch each insertable into the through-hole. A cavity surrounded by the second die, the first punch, and the second punch to compression-mold a molding object is formed in the through-hole. An undercut molding part is formed in the surface of the second die facing the cavity. The second die is formed so as to be splittable into two or more split bodies.

6. 发明授权

US10731704B2 Oil-impregnated sintered bearing and production method therefor 有权
公开(公告)号：US10731704B2
公开(公告)日：2020-08-04
申请号：US16340664
申请日：2017-10-18
申请人： Diamet Corporation
发明人： Yoshiki Tamura , Hideo Sakai , Osamu Sakai
IPC分类号： F16C17/02 , F16C33/02 , F16C33/12 , F16C33/14
摘要： The oil-impregnated sintered bearing of the present invention is an oil-impregnated sintered bearing having a Fe—Cu-based sintered body being impregnated with, a bearing hole being formed in the Fe—Cu-based sintered body and configured to be penetrated by and support a rotating shaft, in which an inner circumferential surface of the bearing hole includes a first region forming a central portion in a shaft direction, a second region from a first end portion of the first region to a first opening of the bearing hole, and a third region from a second end portion of the first region to a second opening of the bearing hole, and an area ratio of the Cu phase of the second region in a center along the shaft direction is 80% or more and 100% or less of an area ratio of the Cu phase of the third region in a center along the shaft direction.

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