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11. 发明授权

US5297365A Method of machining silicon nitride ceramics and silicon nitride ceramics products 失效
标题翻译：氮化硅陶瓷和氮化硅陶瓷制品的加工方法
公开(公告)号：US5297365A
公开(公告)日：1994-03-29
申请号：US921255
申请日：1992-07-29
申请人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
发明人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
IPC分类号： B24B1/00 , B24B7/22 , B24B19/22 , B24D3/00 , C04B35/584
CPC分类号： B24B19/22 , B24B1/00
摘要： An industrially feasible method of grinding silicon nitride ceramics, is disclosed and provides a sufficiently smooth surface. Namely, the surface has a maximum height-roughness Rmax of 0.1 microns or less and a ten-point mean roughness Rz of 0.05 microns. Further, with this method, surface damage can be repaired while grinding. The vertical cutting feed rate of a grinding wheel into a workpiece should be within the range of 0.005-0.1 micron for each rotation of the working surface of the wheel and change linearly or stepwise. The cutting speed of the grinding wheel in a horizontal (rotational) direction should be within the range of 25 to 75 m/sec. With this arrangement, the contact pressure and grinding heat that is generated between the workpiece and the hard abrasive grains during grinding are combined. In other words, mechanical and thermal actions are combined.
摘要翻译：公开了一种工业上可行的研磨氮化硅陶瓷的方法，并提供了足够光滑的表面。即，表面的最大高度粗糙度Rmax为0.1微米以下，十点平均粗糙度Rz为0.05微米。此外，通过该方法，可以在磨削时修复表面损伤。砂轮进入工件的垂直切削进给速率应在车轮工作表面的每次旋转时在0.005-0.1微米的范围内，并且线性或逐步改变。砂轮在水平（旋转）方向上的切割速度应在25至75米/秒的范围内。通过这种布置，在磨削期间在工件和硬磨粒之间产生的接触压力和磨削热被组合。换句话说，组合了机械和热动作。

12. 发明授权

US5770322A Ceramic sliding component 失效
标题翻译：陶瓷滑动部件
公开(公告)号：US5770322A
公开(公告)日：1998-06-23
申请号：US633767
申请日：1996-04-15
申请人： Takao Nishioka , Masamichi Yamagiwa , Takeshi Satoh , Hisao Takeuchi , Akira Yamakawa
发明人： Takao Nishioka , Masamichi Yamagiwa , Takeshi Satoh , Hisao Takeuchi , Akira Yamakawa
IPC分类号： C04B37/02 , F01L1/14 , F01L1/16 , F16C33/04 , B32B15/04 , F01L1/18
CPC分类号： C04B35/6455 , C04B35/5935 , C04B37/021 , C04B37/026 , F01L1/14 , F01L1/16 , F16C33/043 , C04B2235/3217 , C04B2235/3225 , C04B2235/604 , C04B2235/656 , C04B2235/6565 , C04B2235/6567 , C04B2235/661 , C04B2235/95 , C04B2235/96 , C04B2235/963 , C04B2237/122 , C04B2237/123 , C04B2237/124 , C04B2237/125 , C04B2237/126 , C04B2237/127 , C04B2237/343 , C04B2237/365 , C04B2237/366 , C04B2237/406 , C04B2237/52 , C04B2237/592 , C04B2237/595 , C04B2237/64 , C04B2237/704 , C04B2237/706 , C04B2237/708 , C04B2237/72 , C04B2237/76 , F01L2101/02 , Y10T428/12576
摘要： To provide sliding components each comprising a base metal and, joined thereto, a sliding face member having a sliding face of crowning profile, in particular, sliding components such as valve train parts, a cam follower and a rocker arm of an automobile engine. A sliding component having a structure comprising (1) a ceramic forming a sliding face and (2) a base metal joined together, in which the extent of crowning of the sliding face is at least 0.1 to 0.4% of the maximum length of the junction face of the ceramic. The ceramic has a four-point flexural strength of at least 50 Kg/mm as measured in accordance with the Japanese Industrial Standard R1601. The base metal is mainly steel at least the surface of which has preferably a martensite texture and has a hardness of higher than 45 in terms of H.sub.RC. The structure may have an intermediate layer of a metal or cermet. In one mode the junction of the sliding face member such as a ceramic of crowning profile is simultaneously carried out with the formation of the base metal part and in another mode the sliding face of the base metal is hardened by the heating after the junction. A sliding component whose extent of crowning is great can be provided at a lowered cost without suffering from defects such as cracking.
摘要翻译： PCT No.PCT / JP95 / 02311 Sec。 371日期：1996年4月15日 102（e）日期1996年4月15日PCT提交1995年11月13日PCT公布。公开号WO96 / 15359 日期：1996年5月23日为了提供滑动部件，每个滑动部件包括一个基体金属，并且与其连接，具有凸面轮廓的滑动面的滑动面部件，特别是诸如气门机构部件，凸轮从动件和摇臂的滑动部件汽车发动机。一种滑动部件，其结构包括（1）形成滑动面的陶瓷和（2）接合在一起的贱金属，其中，所述滑动面的隆起程度为所述接合部的最大长度的至少0.1至0.4％面对陶瓷。根据日本工业标准R1601测量，该陶瓷具有至少50Kg / mm 3的四点弯曲强度。贱金属主要是钢，其表面的至少表面优选具有马氏体组织，并且硬度以HRC计高于45°。该结构可以具有金属或金属陶瓷的中间层。在一种模式中，通过形成贱金属部件同时进行诸如凸面轮廓的陶瓷的滑动面构件的接合，并且在另一种模式中，在接合之后通过加热来硬化基体金属的滑动面。可以以降低的成本提供隆起程度大的滑动部件，而不会发生破裂等缺陷。

13. 发明授权

US5647313A Combination of adjusting shim and cam 失效
标题翻译：调整垫片和凸轮的组合
公开(公告)号：US5647313A
公开(公告)日：1997-07-15
申请号：US327313
申请日：1994-10-21
申请人： Hiromu Izumida , Kaoru Murabe , Takao Nishioka , Akira Yamakawa , Kenji Matsunuma
发明人： Hiromu Izumida , Kaoru Murabe , Takao Nishioka , Akira Yamakawa , Kenji Matsunuma
IPC分类号： F01L1/04 , F01L1/047 , F01L1/14 , F01L1/16 , F01L1/20 , F02F7/00 , F16H53/06
CPC分类号： F02F7/0087 , F01L1/047 , F01L1/16 , F01L1/205 , F01L2009/0411 , F05C2253/16
摘要： A combination of an adjusting shim and a cam used in a valve train in an internal combustion engine for automobiles, the adjusting shim composed of a ceramic material which sets the surface roughness of a sliding surface of the adjusting shim with respect to a cam to not more than 0.1 .mu.m in ten-point mean roughness Rz, and which contains not less than 60 vol. % of silicon nitride or sialon, and the cam composed of cast iron a surface of which is chill hardened and then provided with a phosphate film thereon. The combination of an adjusting shim and a cam is capable of smoothing a sliding surface of the cam by the break-in of the part even if the cam is not subjected to a super-precision finishing process; preventing the seizure and abnormal abrasion of sliding surfaces; stabilizing a smoothed condition of the sliding surfaces of the cam and shim for a long period of time; and providing excellent sliding characteristics of the sliding surfaces owing to a decrease in the friction coefficient thereof.
摘要翻译：用于汽车内燃机的气门机构中使用的调节垫片和凸轮的组合，由陶瓷材料组成的调节垫片，其将调节垫片的滑动表面的表面粗糙度相对于凸轮设置为不十点平均粗糙度Rz超过0.1μm，含有不低于60vol。％的氮化硅或赛隆，以及由铸铁组成的凸轮，其表面被冷却硬化，然后在其上提供磷酸盐膜。调整垫片和凸轮的组合能够通过零件的插入来平滑凸轮的滑动表面，即使凸轮不经受超精密精加工过程; 防止滑动表面的卡住和异常磨损; 稳定凸轮和垫片的滑动表面的平滑状态长时间; 并且由于其摩擦系数的降低而提供滑动表面的优异的滑动特性。

14. 发明授权

US5599493A Method of producing silicon nitride ceramic component 失效
标题翻译：氮化硅陶瓷部件的制造方法
公开(公告)号：US5599493A
公开(公告)日：1997-02-04
申请号：US429067
申请日：1995-04-26
申请人： Yasushi Ito , Takehisa Yamamoto , Takao Nishioka , Akira Yamakawa , Osamu Komura
发明人： Yasushi Ito , Takehisa Yamamoto , Takao Nishioka , Akira Yamakawa , Osamu Komura
IPC分类号： C04B41/80 , B24B1/00 , C04B35/584 , C04B35/593 , C04B35/599 , C04B35/63 , C04B41/00 , B29C71/02
CPC分类号： C04B41/009 , C04B35/5935 , C04B41/00
摘要： A method of producing a silicon nitride ceramic component, comprising: grinding a silicon nitride sintered body comprising .alpha.--Si.sub.3 N.sub.4 having an average grain size of 0.5 .mu.m or smaller and .beta.'-sialon having an average grain size of 3 .mu.m or smaller in major axis and 1 .mu.m or smaller in minor axis into a predetermined size with a surface roughness of 1-7 .mu.m in ten-point mean roughness; heat treating the same at temperature range of 800.degree.-1200.degree. C. in the air; and standing it to allow to be cooled, whereby providing a residual stress in the ground surface before and after the heat treating as a residual compressive stress at a ratio of 1 or higher of the residual compressive stress after the heat treating to that before the heat treating (residual compressive stress after the heat treating/residual compressive stress before the heat treating), preferably 5 or more.
摘要翻译：一种氮化硅陶瓷成分的制造方法，其特征在于，包括：研磨包含平均粒径为0.5μm以下的α-Si 3 N 4，平均粒径为3μm以下的β'赛隆的氮化硅烧结体长轴和1μm或更小的短轴成预定尺寸，十点平均粗糙度的表面粗糙度为1-7μm; 在空气中在800〜1200℃的温度范围进行热处理; 并将其放置以允许冷却，由此在热处理之前和之后的地面中提供作为残余压应力的残余应力在热处理后的剩余压缩应力为1或更高的比例处理（热处理后的残余压应力/热处理前的残余压应力）优选为5以上。

15. 发明授权

US5564966A Grind-machining method of ceramic materials 失效
标题翻译：陶瓷材料的研磨加工方法
公开(公告)号：US5564966A
公开(公告)日：1996-10-15
申请号：US200997
申请日：1994-02-24
申请人： Takao Nishioka , Takehisa Yamamoto , Yasushi Ito , Akira Yamakawa
发明人： Takao Nishioka , Takehisa Yamamoto , Yasushi Ito , Akira Yamakawa
IPC分类号： B24B1/00 , B24B7/22 , B24B9/06
CPC分类号： B24B7/228 , B24B1/00 , B24B9/065
摘要： A grind-machining method of ceramic materials characterized in that a peripheral speed of a grinding wheel relative to a working surface is set to 50 to 300 m/sec, a feed stroke speed of the working surface of the grinding wheel in a working direction is set to 50 to 200 m/min, and preferably, a down-feed speed of the working surface of the grinding wheel in a direction orthogonal to the surface of the workpiece is set to 0.05 to 3 mm/min. The grind-machining method of ceramic materials can reduce a grinding force at the time of grinding of ceramic materials and residual defects due to machining, and at the same time, can accomplish high machining efficiency.
摘要翻译：一种陶瓷材料的研磨加工方法，其特征在于，砂轮相对于工作面的圆周速度设定为50〜300m /秒，砂轮的工作方向的工作面的进给行程速度为设定为50〜200m / min，优选将砂轮的工作面在与工件表面正交的方向上的下降速度设定为0.05〜3mm / min。陶瓷材料的研磨加工方法可以减少磨削陶瓷材料时的磨削力和由于机械加工造成的残余缺陷，同时可以实现高加工效率。

16. 发明授权

US5275986A Silicon nitride sintered body 失效
标题翻译：氮化硅烧结体
公开(公告)号：US5275986A
公开(公告)日：1994-01-04
申请号：US941659
申请日：1992-09-08
申请人： Takehisa Yamamoto , Takao Nishioka , Tomoyuki Awazu , Akira Yamakawa
发明人： Takehisa Yamamoto , Takao Nishioka , Tomoyuki Awazu , Akira Yamakawa
IPC分类号： C04B35/584 , C04B35/593 , C04B35/597 , C04B35/58
CPC分类号： C04B35/5935 , C04B35/597
摘要： A silicon nitride sintered body comprising .alpha.-silicon nitride including .alpha.'-sialon and .beta.'-sialon including .beta.-silicon nitride in which the content of the .alpha.-silicon nitride including .alpha.'-sialon in the surface part thereof is less than its content in the inner part thereof. The silicon nitride sintered body is excellent in mechanical strength at ordinary temperature, productivity and cost efficiency.
摘要翻译：包括（α） - 硅氮化物的氮化硅烧结体，其包含（α） - 赛隆和（β）' - 赛隆，包括（β） - 氮化硅，其中（α） - 硅氮化物的含量包括（α）其表面部分中的赛隆细胞的含量小于其内部的含量。氮化硅烧结体在常温下的机械强度，生产率和成本效率优异。

17. 发明授权

US5809842A Ceramic sliding component 失效
标题翻译：陶瓷滑动部件
公开(公告)号：US5809842A
公开(公告)日：1998-09-22
申请号：US718588
申请日：1996-09-26
申请人： Masamichi Yamagiwa , Takao Nishioka , Hisao Takeuchi , Akira Yamakawa
发明人： Masamichi Yamagiwa , Takao Nishioka , Hisao Takeuchi , Akira Yamakawa
IPC分类号： F01L1/14 , F01L1/16 , F01L13/00 , F16H53/06
CPC分类号： F01L13/0042 , F01L1/14 , F01L1/16 , F01L2101/02 , F01L2103/00 , Y10T74/2107
摘要： The present invention is intended to provide a sliding member that can prevent abnormal wear and partial wear of the mating metal sliding component even when an oil contaminated with exhaust gas components is used. A ceramic sliding component is manufactured as followed. A silicon nitride-based material for the sliding face member is joined to a metal body having a higher thermal expansion coefficient than the sliding face member. A crowned portion is formed on the sliding face of the sliding face member in such a way that the difference between the amounts of crowning (da, db) at two arbitrary points axially symmetric with respect to the center line of the crowned portion is 10% or more and 50% or less of the average of the crowning amounts at the two points.
摘要翻译： PCT No.PCT / JP96 / 01727 Sec。 371日期1996年9月26日 102（e）1996年9月26日PCT PCT 1996年6月21日PCT公布。出版物WO97 / 01696 日本1997年1月16日本发明旨在提供一种能够防止配合金属滑动部件的异常磨损和部分磨损的滑动部件，即使当使用被废气成分污染的油时。如下制造陶瓷滑动部件。用于滑动面构件的氮化硅基材料接合到具有比滑动面构件更高的热膨胀系数的金属体。在滑动面构件的滑动面上形成隆起部分，使得相对于凸面部分的中心线轴对称的两个任意点处的隆起量（da，db）之间的差为10％以上且两点以上的加工量的平均值的50％以下。

18. 发明授权

US5767026A Silicon nitride ceramic and process for forming the same 失效
标题翻译：氮化硅陶瓷及其形成方法
公开(公告)号：US5767026A
公开(公告)日：1998-06-16
申请号：US633797
申请日：1996-04-10
申请人： Naoki Kondoh , Fumihiro Wakai , Yoshihiro Obata , Akira Yamakawa , Takao Nishioka , Masashi Yoshimura
发明人： Naoki Kondoh , Fumihiro Wakai , Yoshihiro Obata , Akira Yamakawa , Takao Nishioka , Masashi Yoshimura
IPC分类号： B28B1/00 , C04B35/584 , C04B35/593 , C04B35/597 , C04B35/599 , C04B35/626
CPC分类号： C04B35/593 , C04B35/597
摘要： There are provided a process for forming a silicon nitride sintered body, encompassing a sialon sintered body, by making much of the superplasticity of the sintered body intact as a simple material without formation thereof into a composite material, and a formed sintered body produced by the foregoing process. A silicon nitride sintered body (encompassing a sialon sintered body) having a relative density of at least 95% and a linear density of 120 to 250 in terms of the number of grains per 50 .mu.m in length in a two-dimensional cross section of the sintered body is formed through plastic deformation thereof at a strain rate of at most 10.sup.-1 /sec under a tensile or compressive pressure at a temperature of 1,300 to 1,700.degree. C. The formed sintered body has a degree of orientation of 5 to 80% as examined according to a method specified by Saltykov, a linear density of 80 to 200, and excellent mechanical properties especially at ordinary temperatures.
摘要翻译： PCT No.PCT / JP95 / 02026 Sec。 371日期：1996年4月10日 102（e）日期1996年4月10日PCT提交1995年10月4日PCT公布。公开号WO96 / 10546 日本特开1996年4月11日提供了一种形成氮化硅烧结体的方法，其包括塞隆烧结体，通过使烧结体的大部分超塑性作为简单材料而不被形成为复合材料而形成，并形成通过上述方法制造的烧结体。一种氮化硅烧结体（包括赛隆烧结体），其相对密度至少为95％，线密度为120-250，以二维截面为单位长度的每50微米的颗粒数该烧结体通过在1300〜1700℃的拉伸或压缩压力下以至多10-1 /秒的应变速率的塑性变形形成。所形成的烧结体的取向度为5〜80 ％，根据Saltykov规定的方法，线密度为80〜200，特别是在常温下，具有优异的机械性能。

19. 发明授权

US5605494A Facility for grinding silicon nitride ceramic workpiece 失效
标题翻译：研磨氮化硅陶瓷工件的设备
公开(公告)号：US5605494A
公开(公告)日：1997-02-25
申请号：US423726
申请日：1995-04-18
申请人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
发明人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
IPC分类号： B24B1/00 , B24B7/22 , B24B19/22 , B24D3/00 , C04B35/584
CPC分类号： B24B19/22 , B24B1/00
摘要： An industrially feasible method of grinding silicon nitride ceramics is disclosed and provides a sufficiently smooth surface. Namely, the surface has a maximum height-roughness Rmax of 0.1 microns or less and a ten-point mean roughness Rz of 0.05 micron. Further, with this method, surface damage can be repaired while grinding. The vertical cutting feed rate of a grinding wheel into a workpiece should be within the range of 0.005-0.1 micron for each rotation of the working surface of the wheel and change linearly or stepwise. The cutting speed of the grinding wheel in a horizontal (rotational) direction should be within the range of 25 to 75 m/sec. With this arrangement, the contact pressure and grinding heat that is generated between the workpiece and the hard abrasive grains during grinding are combined. In other words, mechanical and thermal actions are combined.
摘要翻译：公开了一种工业上可行的研磨氮化硅陶瓷的方法，并提供了足够光滑的表面。即，表面的最大高度粗糙度Rmax为0.1微米以下，十点平均粗糙度Rz为0.05微米。此外，通过该方法，可以在磨削时修复表面损伤。研磨轮进入工件的垂直切削进给速率应在车轮工作表面的每次旋转时在0.005-0.1微米的范围内，并且线性或逐步改变。砂轮在水平（旋转）方向上的切割速度应在25至75米/秒的范围内。通过这种布置，在磨削期间在工件和硬磨粒之间产生的接触压力和磨削热被组合。换句话说，组合了机械和热动作。

20. 发明授权

US5584745A Method of machining silicon nitride ceramics and silicon nitride ceramics products 失效
标题翻译：氮化硅陶瓷和氮化硅陶瓷制品的加工方法
公开(公告)号：US5584745A
公开(公告)日：1996-12-17
申请号：US162302
申请日：1993-12-06
申请人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
发明人： Takao Nishioka , Kenji Matsunuma , Akira Yamakawa
IPC分类号： B24B1/00 , B24B7/22 , B24B19/22 , B24D3/00 , C04B35/584
CPC分类号： B24B19/22 , B24B1/00
摘要： An industrially feasible method of grinding silicon nitride ceramics is disclosed and provides a sufficiently smooth surface. Namely, the surface has a maximum height-roughness Rmax of 0.1 microns or less and a ten-point mean roughness Rz of 0.05 microns. Further, with this method, surface damage can be repaired while grinding. The vertical cutting feed rate of a grinding wheel into a work piece should be within the range of 0.005-0.1 micron for each rotation of the working surface of the wheel and change linearly or stepwise. The cutting speed of the grinding wheel in a horizontal (rotational) direction should be within the range of 25 to 75 m/sec. With this arrangement, the contact pressure and grinding heat that is generated between the work piece and the hard abrasive grains during grinding are combined. In other words, mechanical and thermal actions are combined.
摘要翻译：公开了一种工业上可行的研磨氮化硅陶瓷的方法，并提供了足够光滑的表面。即，表面的最大高度粗糙度Rmax为0.1微米以下，十点平均粗糙度Rz为0.05微米。此外，通过该方法，可以在磨削时修复表面损伤。研磨轮进入工件的垂直切削进给速率应在车轮工作表面的每次旋转中在0.005-0.1微米的范围内，并且线性或逐步改变。砂轮在水平（旋转）方向上的切割速度应在25至75米/秒的范围内。通过这种布置，在磨削期间在工件和硬磨料颗粒之间产生的接触压力和磨削热被组合。换句话说，组合了机械和热动作。

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