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公开(公告)号：US6139022A
公开(公告)日：2000-10-31
申请号：US161486
申请日：1998-09-28
CPC分类号： C23C28/044 , C23C16/26 , C23C28/046 , C23C30/00 , F16J9/26 , Y10S277/938
摘要： A piston ring is formed over the entire surface with a gas nitrided layer and a hard film with a thickness of 0.5 to 10 micrometers on the gas nitrided layer at the outer circumferential surface. The hard film comprises diamond-like carbon in which are dispersed carbides of one or more elements selected from the group consisting of silicon, titanium, tungsten, chromium, molybdenum, niobium, and vanadium. The diamond-like carbon is configured with any one of an amorphous carbon structure, an amorphous carbon structure having partly a diamond structure, or an amorphous carbon structure having partly a graphite structure. The content of the above elements is 5 to 40 atomic percent, and the hard film has a Vicker's hardness in a range from 700 to 2,000. A chromium plating film or ion plating film may be used instead of the gas nitrided layer. The hard film may be formed directly on the outer circumferential surface of the piston ring in a thickness from 10 to 30 micrometers
摘要翻译： 活塞环在整个表面上形成有气体氮化层和厚度为0.5至10微米的硬膜，在外周表面的气体氮化层上。 该硬质膜包含类金刚石碳，其中选自硅，钛，钨，铬，钼，铌和钒中的一种或多种元素的分散碳化物。 类金刚石碳由无定形碳结构，具有部分金刚石结构的无定形碳结构或具有部分石墨结构的无定形碳结构中的任意一种构成。 上述元素的含量为5〜40原子％，硬膜的维氏硬度为700〜2000。 可以使用镀铬膜或离子镀膜来代替气体氮化层。 硬膜可以直接形成在活塞环的外圆周表面上，厚度为10至30微米
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公开(公告)号：US06325385B1
公开(公告)日：2001-12-04
申请号：US09352345
申请日：1999-07-13
IPC分类号： F16J926
CPC分类号： F16J9/26 , Y10S277/938 , Y10S277/943
摘要： A piston ring has a diamond-like carbon film formed in a thickness of 0.5 to 30 micrometers over an under film on the upper and lower surfaces. The under film is directly formed on the surfaces, or formed on a hard surface treatment layer consisting of a gas nitrided layer or a chromium plating film. The diamond-like carbon is configured with any one of an amorphous carbon structure, an amorphous carbon structure having partly a diamond structure, or an amorphous carbon structure having partly a graphite structure. The under film is comprised of one or more elements selected from the group consisting of silicon, titanium, tungsten, chromium, molybdenum, niobium and vanadium in an atomic content of 70 percent or more and below 100 percent, and the remaining content consisting of carbon, or one or more of said elements in an atomic content of 100 percent. The films may also be formed in the same way on the outer circumferential surface of the piston ring.
摘要翻译： 活塞环在上表面和下表面上的下膜下形成厚度为0.5至30微米的类金刚石碳膜。 底膜直接形成在表面上，或形成在由气体氮化层或镀铬膜构成的硬表面处理层上。 类金刚石碳由无定形碳结构，具有部分金刚石结构的无定形碳结构或具有部分石墨结构的无定形碳结构中的任意一种构成。 底膜由原子含量为70％以上且低于100％的一种或多种选自硅，钛，钨，铬，钼，铌和钒的元素组成，其余含量由碳 ，或者100％的原子含量的一种或多种所述元素。 膜也可以以相同的方式形成在活塞环的外周表面上。
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公开(公告)号：US06279913B1
公开(公告)日：2001-08-28
申请号：US09352329
申请日：1999-07-13
IPC分类号： F16J926
CPC分类号： F16J9/26 , Y10T428/25 , Y10T428/252 , Y10T428/30 , Y10T428/31678
摘要： A piston ring is formed over the entire surface with a gas nitrided layer. A diamond-like carbon film is formed in a thickness of 0.5 to 30 micrometers over the gas nitrided layer at the upper and lower surfaces. The diamond-like carbon film has a surface structure in which diamond-like carbon has been deposited in nodular shapes in sizes of 0.5 to 5 micrometers. The diamond-like carbon is configured with any one of an amorphous carbon structure, an amorphous carbon structure having partly a diamond structure, or an amorphous carbon structure having partly a graphite structure.
摘要翻译： 活塞环在整个表面上形成有气体氮化层。 在上下表面的气体氮化层上形成厚度为0.5至30微米的类金刚石碳膜。 类金刚石碳膜具有表面结构，其中类金刚石已经以0.5至5微米的尺寸沉积成球形。 类金刚石碳由无定形碳结构，具有部分金刚石结构的无定形碳结构或具有部分石墨结构的无定形碳结构中的任意一种构成。
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公开(公告)号：US6142481A
公开(公告)日：2000-11-07
申请号：US161263
申请日：1998-09-28
CPC分类号： F16J9/26 , C23C16/26 , C23C30/00 , Y10S277/938
摘要： A piston ring is formed over the entire surface with a gas nitrided layer and a hard film with a thickness of 0.5 to 30 micrometers on the gas nitrided layer at the upper and lower surfaces. The hard film comprises diamond-like carbon in which are dispersed one or more elements selected from the group consisting of silicon, titanium, tungsten, chromium, molybdenum, niobium, and vanadium. The diamond-like carbon is configured with any one of an amorphous carbon structure, an amorphous carbon structure having partly a diamond structure, or an amorphous carbon structure having partly a graphite structure. The content of the above elements is 5 to 40 atomic percent, and the hard film has a Vicker's hardness in a range from 700 to 2,000. The hard film may be formed directly on the upper and lower surfaces of the piston ring in a thickness from 0.5 to 30 micrometers
摘要翻译： 活塞环在整个表面上形成有气体氮化层和厚度为0.5至30微米的硬膜，位于上表面和下表面的气体氮化层上。 硬膜包含类金刚石碳，其中分散有一种或多种选自硅，钛，钨，铬，钼，铌和钒的元素。 类金刚石碳由无定形碳结构，具有部分金刚石结构的无定形碳结构或具有部分石墨结构的无定形碳结构中的任意一种构成。 上述元素的含量为5〜40原子％，硬膜的维氏硬度为700〜2000。 硬膜可以直接形成在活塞环的上表面和下表面上，厚度为0.5至30微米
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