公开(公告)号：US5904993A

公开(公告)日：1999-05-18

申请号：US648178

申请日：1996-05-21

申请人： Hisao Takeuchi ,  Koichi Sogabe ,  Takao Nishioka ,  Takashi Matsuura ,  Akira Yamakawa

发明人： Hisao Takeuchi ,  Koichi Sogabe ,  Takao Nishioka ,  Takashi Matsuura ,  Akira Yamakawa

IPC分类号： B23K20/00 ,  B23K20/02 ,  C04B37/02 ,  B23B15/04 ,  B22F7/00 ,  B23K1/19

CPC分类号： B23K20/023 ,  B23K2203/10 ,  Y10T428/12535 ,  Y10T428/12576 ,  Y10T428/31678

摘要： A joint body in which aluminum and silicon nitride are strongly joined with each other is provided at a low cost, thereby providing a lightweight part which is excellent in sliding property as a mechanical part of an internal combustion engine of an automobile or the like. The joint body includes a base material which is mainly composed of aluminum, and a member consisting of a silicon nitride sintered body which is substantially directly joined to the base material. A powdery or bulky base material (2) mainly composed of aluminum, and a member (1) consisting of a silicon nitride sintered body are charged in a mold and heated under pressurization, thereby joining the same with each other.

摘要翻译： PCT No.PCT / JP95 / 01870 Sec。 371日期：1996年5月21日 102（e）日期1996年5月21日PCT提交1995年9月20日PCT公布。 公开号WO96 / 09266 日期：1996年3月28日以低成本提供铝和氮化硅彼此牢固地接合的接头体，从而提供作为汽车内燃机的机械部件的滑动性优异的轻质部件 或类似物。 接合体包括主要由铝构成的基材和由基本上直接接合到基材的氮化硅烧结体构成的部件。 主要由铝构成的粉状或体积大的基材（2）和由氮化硅烧结体构成的部件（1）加入到模具中并在加压下加热，从而将它们彼此接合。

公开(公告)号：US5961907A

公开(公告)日：1999-10-05

申请号：US920452

申请日：1997-08-29

申请人： Masamichi Yamagiwa ,  Akira Yamakawa ,  Takao Nishioka ,  Takashi Matsuura

发明人： Masamichi Yamagiwa ,  Akira Yamakawa ,  Takao Nishioka ,  Takashi Matsuura

IPC分类号： F16C33/24 ,  C04B35/584 ,  C04B35/593 ,  C04B41/80 ,  F01L1/14 ,  F01L3/02 ,  F16C33/04 ,  B29C49/00

CPC分类号： C04B35/593 ,  F01L1/14 ,  F01L3/02 ,  F16C33/043 ,  F01L2105/02

摘要： A silicon nitride ceramic sliding member which includes Si.sub.3 N.sub.4 grains as a main component and is shaped or controlled in dimensions through hot plastic working wherein the Si.sub.3 N.sub.4 particles mainly includes .beta.-type columnar crystal grains. The ceramic sliding member is produced by the step (I) of preparing a preform made of silicon nitride ceramic sintered body including Si.sub.3 N.sub.4 grains as a main component wherein the average grain size (average grain size in minor axis in the case of .beta.-type columnar crystal grains) of the Si.sub.3 N.sub.4 grains is at most 0.5 .mu.m, and the hot plastic working step (II) of placing the preform in a mold and effecting hot plastic deformation of the preform for shaping or dimensional control thereof while simultaneously increasing the average aspect ratio of the .beta.-type columnar crystal grains. The resultant sliding member has excellent sliding properties, a high mechanical strength and a high reliability at a low cost without resort to grinding or the like for shaping thereof.

摘要翻译： 一种氮化硅陶瓷滑动构件，其包括Si 3 N 4晶粒作为主要成分，并通过热塑性加工成型或尺寸控制，其中Si 3 N 4颗粒主要包括β型柱状晶粒。 陶瓷滑动构件是通过制备由包含Si 3 N 4晶粒作为主要成分的氮化硅陶瓷烧结体制成的预制件的步骤（I）制备的，其中平均晶粒度（在β型柱状的情况下为短轴的平均晶粒尺寸 Si3N4晶粒的晶粒度为0.5μm以下，热塑性加工工序（II）将预成型体放置在模具中，并对预制件进行热塑性变形以进行成形或尺寸控制，同时增加平均面积 β型柱状晶粒的比例。 所得的滑动构件具有优异的滑动性能，高机械强度和高可靠性，而不需要用于成型的研磨等。

公开(公告)号：US5720917A

公开(公告)日：1998-02-24

申请号：US638587

申请日：1996-04-29

申请人： Takashi Matsuura ,  Takao Nishioka ,  Akira Yamakawa

发明人： Takashi Matsuura ,  Takao Nishioka ,  Akira Yamakawa

IPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/64

CPC分类号： C04B35/584 ,  C04B35/593

摘要： The invention aims to offer a method to manufacture a high-strength, high-reliability and low cost silicon nitride based sintered body which is not affected by the amount of metal impurities contained in the silicon nitride powder, without using high-purity silicon nitride powder, and can be sintered for a short sintering time. The invention uses silicon nitride and sintering aids, and the powder mixture containing 500-5000 ppm metal impurities is sintered at temperatures ranging from 1300.degree.-1900.degree. C., and under the conditions wherein the product of sintering temperature and sintering time ranges from 1.times.10.sup.5 to 10.times.10.sup.5 .degree. C. .multidot.seconds.

摘要翻译： 本发明旨在提供一种制造高强度，高可靠性和低成本的氮化硅基烧结体的方法，其不受氮化硅粉末中所含的金属杂质的量的影响，而不使用高纯氮化硅粉末 并且可以在短的烧结时间下烧结。 本发明使用氮化硅和烧结助剂，并且将含有500-5000ppm金属杂质的粉末混合物在1300-119℃的温度下烧结，并且在烧结温度和烧结时间范围为1×10 5 至10×105℃×秒。

公开(公告)号：US5346869A

公开(公告)日：1994-09-13

申请号：US175490

申请日：1993-12-29

申请人： Takao Nishioka ,  Takehisa Yamamoto ,  Kenji Matsunuma ,  Akira Yamakawa ,  Masaya Miyake

发明人： Takao Nishioka ,  Takehisa Yamamoto ,  Kenji Matsunuma ,  Akira Yamakawa ,  Masaya Miyake

IPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/597 ,  F01L1/20 ,  F02B3/06 ,  F02F7/00 ,  C04B35/58

CPC分类号： C04B35/584 ,  C04B35/5935 ,  C04B35/597 ,  F01L1/205 ,  F02F7/0087 ,  F02B3/06 ,  F05C2203/0895

摘要： Described are sintered silicon nitride bodies useful as materials for parts required to have strength, especially excellent impact strength for items such as automobile parts and machine parts. The sintered Si.sub.3 N.sub.4 bodies contain 80-98 wt. % of silicon nitride and have a porosity not higher than 3% and an shock compressive elasticity limit of at least 15 GPa.

摘要翻译： 描述了可用作对于诸如汽车部件和机器部件的物品具有强度，特别优异的冲击强度的部件的材料的烧结氮化硅体。 烧结的Si 3 N 4体含有80-98wt。 ％的氮化硅，并且具有不高于3％的孔隙率和至少15GPa的冲击压缩弹性极限值。

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。

公开(公告)号：US4769350A

公开(公告)日：1988-09-06

申请号：US102922

申请日：1987-09-30

申请人： Takao Nishioka ,  Akira Yamakawa ,  Masaya Miyake

发明人： Takao Nishioka ,  Akira Yamakawa ,  Masaya Miyake

IPC分类号： C04B35/584 ,  C04B35/593 ,  C04B35/58

CPC分类号： C04B35/584 ,  C04B35/593

摘要： A silicon nitride sintered material for cutting tools comprising from about 3 to 10 wt % of partially stablized zirconium oxide, from about 1 to 5 wt % of aluminum oxide, and from about 1 to 10 wt % of yttrium oxide, the balance being silicon nitride, and the process for making the same.

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。

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。

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。

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。