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公开(公告)号：US20180238450A1
公开(公告)日：2018-08-23
申请号：US15751155
申请日：2015-08-10
IPC分类号： F16J9/26 , C23C16/27 , C23C16/455 , C23C16/513
摘要： Provided is a piston ring having excellent low-friction properties and abrasion resistance manufactured without the need for precision control using an ordinary film formation device that does not have a special function. A piston ring obtained by coating an amorphous carbon film on the surface of a ring-shaped substrate, the piston ring being configured so that the amorphous carbon film is formed by CVD, an increase region, in which the ratio sp2/sp3 of the sp2 bond to the sp3 bond continuously increases from the substrate surface toward the film surface, and a decrease region, in which the ratio sp2/sp3 continuously decreases, are formed in alternating fashion, a soft film in which the ratio sp2/sp3 is low and a hard film in which the ratio sp2/sp3 is high are formed so as to be layered in alternating fashion by continuous variation of the ratio sp2/sp3 in the boundary between the increase region and the decrease region, and the decrease regions are formed in equal number to or with one region less than the number of increase regions.
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公开(公告)号：US11851741B2
公开(公告)日：2023-12-26
申请号：US16612411
申请日：2018-05-09
申请人： NIPPON ITF, INC.
发明人： Takehiko Ooshiro , Yukako Fukutani , Koji Miyake
CPC分类号： C23C14/0605 , C23C14/0611 , C23C14/243 , C23C14/325 , C23C16/26 , F16C33/1025 , Y10T428/30
摘要： A hard carbon film that forms a sliding surface of a sliding member, wherein the hard carbon film includes terminal atoms that bond to carbon atoms and has a plurality of protruding shaped parts, part of which protrude from the surface thereof, with the periphery of each of the plurality of protruding shaped parts being terminated by a terminal atom. A manufacturing method for the hard carbon film for producing the hard carbon film on a sliding surface of the sliding member using arc vapor deposition having graphite as the vaporization source, wherein a gas containing the terminal atoms that bond to carbon atoms is introduced, and the plurality of protruding shaped parts is grown on the surface of the hard carbon film while terminating the periphery of the plurality of protruding shaped parts by bonding of the terminal atoms to carbon atoms.
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公开(公告)号：US20210156021A1
公开(公告)日：2021-05-27
申请号：US16612411
申请日：2018-05-09
申请人： NIPPON ITF, INC.
发明人： Takehiko OOSHIRO , Yukako FUKUTANI , Koji MIYAKE
摘要： A hard carbon film that forms a sliding surface of a sliding member, wherein the hard carbon film includes terminal atoms that bond to carbon atoms and has a plurality of protruding shaped parts, part of which protrude from the surface thereof, with the periphery of each of the plurality of protruding shaped parts being terminated by a terminal atom. A manufacturing method for the hard carbon film for producing the hard carbon film on a sliding surface of the sliding member using arc vapor deposition having graphite as the vaporization source, wherein a gas containing the terminal atoms that bond to carbon atoms is introduced, and the plurality of protruding shaped parts is grown on the surface of the hard carbon film while terminating the periphery of the plurality of protruding shaped parts by bonding of the terminal atoms to carbon atoms.
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公开(公告)号：US20180371608A1
公开(公告)日：2018-12-27
申请号：US16062109
申请日：2016-12-16
发明人： Hideki MORIGUCHI , Akinori SHIBATA , Takehiko OOSHIRO , Yoshihiro ITO , Takahiro OKAZAKI , Hiroyuki SUGIURA
摘要： The purpose of the invention is to provide technology, which, in addition to being capable of forming thick hard carbon films of excellent durability even using PVD, is able to establish both chipping resistance and wear resistance in the formed hard carbon film and able to improve low friction properties and peeling resistance. Provided is a coating film to be coated on the surface of a substrate, the coating film having a total film thickness of greater than 1 μm to 50 μm wherein: when a cross-section is observed using bright field TEM images, white hard carbon layers that are shown as relatively white and black hard carbon layers that are shown as black are alternately laminated in the thickness direction; and the white hard carbon layers have regions that have grown in a fan-shape in the thickness direction.
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公开(公告)号：US20180231125A1
公开(公告)日：2018-08-16
申请号：US15751157
申请日：2015-08-10
CPC分类号： F16J9/26 , C23C16/0281 , C23C16/26
摘要： A piston ring in which carbon films with film qualities optimized to be adapted to required performance are formed on an outer circumferential sliding surface and top and bottom surfaces thereof with good productivity is provided, and a high-performance engine which employs the piston ring is also provided. In the piston ring, a carbon film is formed on an outer circumferential sliding surface and top and bottom surfaces. The carbon film contains a stacking of at least two types of carbon film layers with different film qualities, and a thickness ratio of the two types of carbon film layers is different between the outer circumferential sliding surface and the top and bottom surfaces.
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公开(公告)号：US20040134771A1
公开(公告)日：2004-07-15
申请号：US10622495
申请日：2003-07-21
IPC分类号： C23C014/32
CPC分类号： H01J37/32055 , C23C14/325 , H01J37/32009
摘要： An arc evaporation source constituting this vacuum arc deposition apparatus has a plurality of cathodes, a trigger electrode, a trigger drive unit, a shutter, and a shutter drive unit. The trigger drive unit changes over the position of the trigger electrode to thereby position the trigger electrode in front of a desired cathode, and connects/disconnects the trigger electrode to/from the desired cathode in the changed-over position. The shutter covers the fronts of all the cathodes except the desired cathode..: The shutter drive unit moves the shutter to thereby change over the cathode not covered with the shutter. Further, the vacuum arc deposition apparatus has a changeover control unit for controlling the shutter drive unit and the trigger drive unit to thereby change over the cathode not covered with the shutter and to thereby position the trigger electrode in front of the cathode not covered with the shutter.
摘要翻译： 构成该真空电弧沉积设备的电弧蒸发源具有多个阴极，触发电极，触发驱动单元，快门和快门驱动单元。 触发驱动单元改变触发电极的位置，从而将触发电极定位在所需阴极的前方，并将触发电极与转换位置中所需的阴极连接/断开。 快门覆盖除了所需阴极之外的所有阴极的前面。快门驱动单元移动快门，从而在未被快门遮盖的阴极上改变。 此外，真空电弧沉积设备具有切换控制单元，用于控制快门驱动单元和触发器驱动单元，从而切换未被遮板覆盖的阴极，从而将触发电极定位在阴极未覆盖的前面 快门。
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公开(公告)号：US11293548B2
公开(公告)日：2022-04-05
申请号：US16624781
申请日：2018-06-15
发明人： Takahiro Okazaki , Yoshihiro Ito , Hiroyuki Sugiura , Shinya Kanazawa , Hideki Moriguchi , Akinori Shibata , Takehiko Ooshiro
摘要： A sliding member (10) including a coating film (1) composed of a hard carbon layer on a sliding surface (16) of a base material (11). The coating film has, when a cross section thereof is observed by a bright-field TEM image, a thickness within a range of 1 μm to 50 μm, and is configured by repeating units including black hard carbon layers (B), relatively shown in black, and white hard carbon layers (W), relatively shown in white, and laminated in a thickness direction, and comprise an inclined region, provided on a base material side, where thicknesses of white hard carbon layers (W) of the repeating units gradually increase in a thickness direction, and a homogeneous region\, provided on a surface side of the sliding member, where thicknesses of the white hard carbon layers (W) of the repeating units are the same or substantially the same in the thickness direction.
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公开(公告)号：US10457885B2
公开(公告)日：2019-10-29
申请号：US15511638
申请日：2014-09-17
发明人： Hideki Moriguchi , Tadashi Saito , Yoshikazu Tanaka , Akinori Shibata , Tetsumi Arahi , Katsuaki Ogawa , Takahiro Okazaki , Hiroyuki Sugiura , Yoshihiro Ito
IPC分类号： C10M103/02 , C23C14/06 , C01B32/05 , C23C14/32
摘要： Provided are a coating film, a manufacturing method for the same, and a PVD device that not only sufficiently improve the balance of low-friction properties and wear resistance, but also improve chipping resistance and peeling resistance. This film is coated on a substrate surface, wherein the coating film has a hard carbon that presents relatively black and white when observed in a cross-sectional bright-field TEM image, a mesh-shaped hard carbon layer is formed using a PVD method, said layer having white-colored hard carbon in a mesh shape extending in the thickness direction and black-colored hard carbon dispersed into the cavities in the mesh, and the ID/IG ratio is 1-6 when the mesh-shaped hard carbon layer is measured using Raman spectroscopy, said ratio being the ratio of the Raman spectrum D band peak area intensity and G band peak area intensity.
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公开(公告)号：US09953808B2
公开(公告)日：2018-04-24
申请号：US14787272
申请日：2013-04-30
申请人： NIPPON ITF, INC.
CPC分类号： H01J37/32055 , C23C14/325 , H01J37/32614 , H01J37/3266 , H01J37/32669 , H01J2237/327 , H01J2237/332
摘要： Provided is an arc evaporation source for melting and evaporating a cathode material by arc discharge for film formation on a surface of a substrate, and including a cathode formed in a substantially disc shape and a magnetic field generating apparatus, disposed at a back side of the cathode. The magnetic field generating apparatus generates a magnetic field which forms magnetic lines that form an acute angle with respect to a substrate direction at an outer circumferential surface of the cathode, magnetic lines that are substantially perpendicular to the discharge surface at an outermost circumference part of the discharge surface of the cathode, and magnetic lines that form an acute angle with respect to a center direction of the cathode at a region towards the outer circumferential surface of the discharge surface of the cathode, by at least one permanent magnet disposed at the back side of the cathode.
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公开(公告)号：US11261519B2
公开(公告)日：2022-03-01
申请号：US16062109
申请日：2016-12-16
发明人： Hideki Moriguchi , Akinori Shibata , Takehiko Ooshiro , Yoshihiro Ito , Takahiro Okazaki , Hiroyuki Sugiura
摘要： The purpose of the invention is to provide technology, which, in addition to being capable of forming thick hard carbon films of excellent durability even using PVD, is able to establish both chipping resistance and wear resistance in the formed hard carbon film and able to improve low friction properties and peeling resistance. Provided is a coating film to be coated on the surface of a substrate, the coating film having a total film thickness of greater than 1 μm to 50 μm wherein: when a cross-section is observed using bright field TEM images, white hard carbon layers that are shown as relatively white and black hard carbon layers that are shown as black are alternately laminated in the thickness direction; and the white hard carbon layers have regions that have grown in a fan-shape in the thickness direction.
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