-
1.发明授权Piston ring having wear coating consisting of Cr.sub.2 N or a mixture of Cr.sub.2 N and Cr 失效具有由Cr2N或Cr2N和Cr的混合物组成的耐磨涂层的活塞环
公开(公告)号：US5820131A
公开(公告)日：1998-10-13
申请号：US788345
申请日：1997-01-27
摘要： A Cr.sub.2 N film or a mixed Cr.sub.2 N and Cr film formed by physical vapor deposition on the outer circumferential surface of a piston ring which is in contact with the inner circumferential surface of a cylinder. The axial width of the outer circumferential surface of the piston ring is 0.6 mm or less. The nitrogen content of the film is 11 to 17 percent by weight. The Vicker's hardness of the film is in the range of HV1300 to HV2000. The thickness of the film is 3 .mu.m to 30 .mu.m.
摘要翻译： Cr2N膜或通过物理气相沉积形成的混合Cr2N膜和Cr膜，其与活塞环的与圆筒的内周面接触的外周面形成。 活塞环的外周面的轴向宽度为0.6mm以下。 膜的氮含量为11〜17重量％。 Vicker的薄膜硬度在HV1300到HV2000的范围内。 薄膜的厚度为3〜30μm。
-
公开(公告)号：US5601293A
公开(公告)日：1997-02-11
申请号：US575329
申请日：1995-12-20
CPC分类号： C23C14/325 , C23C14/0641 , F16J9/26
摘要： A hard film is formed on the outer circumferential surface of a piston ring by means of a physical vapor deposition process. The hard film is a ternary film comprising molybdenum, chromium, and 4 to 22 percent nitrogen by weight, and includes at least molybdenum nitride and chromium nitride. The film has a Vickers hardness of 1400 to 2600, and the crystal grain size of the film is less than 1 .mu.m.
摘要翻译： 通过物理气相沉积工艺在活塞环的外圆周表面上形成硬膜。 硬膜是包含钼，铬和按重量计为4至22％的氮的三元膜，并且至少包括氮化钼和氮化铬。 该膜的维氏硬度为1400〜2600，膜的晶粒尺寸小于1μm。
-
公开(公告)号：US5582414A
公开(公告)日：1996-12-10
申请号：US253922
申请日：1994-06-03
CPC分类号： F16J9/26 , C23C14/0641 , C23C14/0688 , C23C14/16
摘要： An under coating 2 and a hard film 3 are formed on the outer circumferential surface of a piston ring 1 by an ion plating process. The under coating 2 is composed of at least one of Cr, Cr.sub.2 N, and CrN. The hard film 3 is composed of a hard coating material containing 3 percent to 20 percent by weight of oxygen in a solid solution state in a crystal structure of CrN and having the Vickers hardness of 1600 to 2200.
摘要翻译： 通过离子镀处理在活塞环1的外周面上形成底涂层2和硬膜3。 底涂层2由Cr，Cr2N和CrN中的至少一种构成。 硬质膜3由在CrN的晶体结构中含有3〜20重量％的固溶态氧的维氏硬度为1600〜2200的硬质涂层材料构成。
-
4.发明授权Hard coating material, sliding member coated with hard coating material and method for manufacturing sliding member 失效硬质涂层材料，涂有硬质涂层材料的滑动部件和制造滑动部件的方法
公开(公告)号：US5449547A
公开(公告)日：1995-09-12
申请号：US207049
申请日：1994-03-08
CPC分类号： F16J9/26 , C23C14/06 , C23C14/0664 , Y10T29/49281 , Y10T428/24983
摘要： A hard film 2 is applied to cover an outer circumferential surface of a piston ring 1 by an ion plating process. Either 3 percent to 20 percent by weight of oxygen, or 2 percent to 11 percent by weight of carbon is included in a solid solution state in a crystal structure of CrN in the hard film 2. The Vickers hardness of the hard film 2 is in a range of 1600 to 2200.
摘要翻译： 通过离子镀工艺涂覆硬膜2以覆盖活塞环1的外周面。 在硬膜2中的CrN的晶体结构中，以固体溶液状态包含3重量％至20重量％的氧，或2重量％至11重量％的碳。硬膜2的维氏硬度为 范围1600至2200。
-
公开(公告)号：US06508473B1
公开(公告)日：2003-01-21
申请号：US09669456
申请日：2000-09-25
申请人： Shoji Tanaka , Hiroto Fukutome , Shinichi Imai
发明人： Shoji Tanaka , Hiroto Fukutome , Shinichi Imai
IPC分类号： B60T11236
CPC分类号： C23C28/044 , C23C14/0641 , C23C28/048 , F16J9/26
摘要： A piston ring is made of martensitic stainless steel. Except for the outer circumferential surface of the piston ring, a nitrided layer having a Vickers hardness of 700 or more is formed on the upper and lower surfaces and inner circumferential surface, and a nitrided layer having a Vickers hardness of less than 700 is formed below the nitrided layer. A hard film is then formed by ion plating only on the outer circumferential surface of the piston ring. The hard film formed by ion plating and the nitrided layer with a Vickers hardness of 700 or more are separated without making contact in the vicinity of at least one of corner sections formed by the upper and lower surfaces and outer circumferential surface. The distance is within a range of 0.001 to 0.3 mm. The nitrided layers can be formed just on the upper and lower surfaces of the piston ring.
摘要翻译： 活塞环由马氏体不锈钢制成。 除了活塞环的外周面之外，在上下表面和内周面上形成维氏硬度为700以上的渗氮层，维氏硬度小于700的氮化层形成在下方 氮化层。 然后通过仅在活塞环的外周面上的离子电镀形成硬膜。 通过离子镀形成的硬膜和维氏硬度为700以上的氮化层被分离，而不会在由上下表面和外周面形成的角部中的至少一个附近接触。 该距离在0.001至0.3mm的范围内。 氮化层可以刚好形成在活塞环的上表面和下表面上。
-
6.发明授权
公开(公告)号：US5718437A
公开(公告)日：1998-02-17
申请号：US767800
申请日：1996-12-17
摘要： A combined oil ring is comprised of paired upper and lower side rails, and a spacer expander. The side rails are made of martensitic stainless steel and are subjected to gas nitriding. The spacer expander is made of austenitic stainless steel, with a substantially U-shaped cross section, and has an under layer formed by soft nitriding, and has a Cr.sub.2 N film. The Cr.sub.2 N film has a hardness of HV1300 to HV2000 and a thickness of 3 .mu.m to 30 .mu.m. The Cr.sub.2 N film is formed by ion plating on the soft-nitrided layer of the outer circumferential surface.
摘要翻译： 组合的油环由成对的上侧和下侧轨道以及间隔件膨胀机构成。 侧轨由马氏体不锈钢制成，并进行气体氮化。 间隔膨胀机由奥氏体不锈钢制成，具有大致U形横截面，并且具有通过软氮化形成的底层，并具有Cr 2 N膜。 Cr2N膜的硬度为HV1300〜HV2000，厚度为3μm〜30μm。 Cr2N膜通过离子镀在外周面的软氮化层上形成。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.01 秒)
