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21. 发明专利

DE102006048442A1 未知
公开(公告)号：DE102006048442A1
公开(公告)日：2007-05-24
申请号：DE102006048442
申请日：2006-10-12
申请人： HITACHI POWDERED METALS
发明人： YOSHIHIRO TATSUAKI , KAWATA HIDEAKI , FUJITSUKA HIROKI , MAKI KUNIO , TSUBOI TORU
IPC分类号： B22F5/00
摘要： A manufacturing method for wear resistant sintered member is provided. The method includes: compacting a raw powder containing a matrix forming powder and a hard phase forming powder into a green compact, the matrix forming powder containing 90 mass % or more of a powder having the maximum particle diameter of 46 μm, and the hard phase forming powder being 40 to 70 mass % with respect to the raw powder; and sintering the green compact.

22. 发明专利

JP2009024798A Sliding bearing 有权
标题翻译：滑动轴承
公开(公告)号：JP2009024798A
公开(公告)日：2009-02-05
申请号：JP2007189396
申请日：2007-07-20
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： MARUYAMA KAZUO , YANASE TAKESHI , MAKI KUNIO , MAWATARI OSAMU , KOBAYASHI JUNICHI
IPC分类号： F16C33/10 , F16C17/02 , F16C33/12
CPC分类号： F16C17/02 , F16C33/1065
摘要： PROBLEM TO BE SOLVED: To provide a sliding bearing capable of providing excellent lubricating effect, hardly abraded by restraining metallic contact even if high bearing pressure is received, and capable of exhibiting the smooth bearing action over a long period, by sufficiently supplying lubricating oil stored in a plurality of grooves extending in the direction crossing with the peripheral direction, to the whole area of a sliding surface adjacent to its groove in response to the rotation of a shaft.
SOLUTION: An inclined groove 12 is formed on an inner peripheral surface 10 of a beating 1 under a condition of the following (A)-(D): (A) a range of 10-60 degrees in the direction orthogonal to the peripheral direction, (B) a groove width B in the peripheral direction is set to 0.5-5 mm, (C) a width A in the peripheral direction of the sliding surface 14 being a surface of a crest part between the adjacent grooves is set to 1-7 mm, and (D) the ratio A/B of the width A to the groove width B of the sliding surface is set to 0.5-5.0, and an inner peripheral groove 15 and an outer peripheral groove 16 communicating with the inclined groove 12, are also formed in the bearing 1 in a pair state, and a through-hole 17 is formed for penetrating through the inner peripheral groove 15 and the outer peripheral groove 16.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够提供优异的润滑效果的滑动轴承，即使接收到高的轴承压力也难以通过抑制金属接触而磨损，并且能够通过充分供给能够长时间地表现出平滑的轴承作用存储在沿与周向交叉的方向延伸的多个槽中的润滑油响应于轴的旋转而与其槽相邻的滑动面的整个区域。解决方案：在以下（A） - （D）：（A）的条件下，在打浆机1的内周面10上形成倾斜槽12，在与圆周方向（B）的圆周方向的槽宽B设定为0.5〜5mm，（C）作为相邻槽之间的波峰部的表面的滑动面14的周向的宽度A为设定为1-7mm，（D）宽度A与滑动面的槽宽B的比A / B设定为0.5〜5.0，内周槽15和外周槽16与倾斜槽12也以一对形成在轴承1中，并且形成贯穿内周槽15和外周槽16的通孔17.版权所有（C）2009， JPO和INPIT

23. 发明专利

JP2007113101A Sintered valve seat and method for producing the same 有权
标题翻译：烧结阀座及其生产方法
公开(公告)号：JP2007113101A
公开(公告)日：2007-05-10
申请号：JP2005308778
申请日：2005-10-24
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： KAWADA HIDEAKI , FUJITSUKA HIROKI , YOSHIHIRO TATSUAKI , MAKI KUNIO , TSUBOI TORU
IPC分类号： C22C38/00 , B22F3/26 , C22C33/02 , F01L3/02 , F01L3/24
摘要： PROBLEM TO BE SOLVED: To provide a sintered valve seat which can exhibit excellent high-temperature wear resistance in high-load engine environments such as in a CNG engine or a heavy-duty diesel engine.
SOLUTION: The sintered valve seat is characterized in that it has a composition of 20-60 mass% Mo, 3-12 mass% Cr, 1-5 mass% Si, and the balance comprising Co and unavoidable impurities and has a structure composed of a matrix and 40 to 70 mass% hard phase composed of a Co base alloy phase and molybdenum silicide dispersed therein. The matrix does not contain pearlite, sorbite, or bainite.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种在诸如CNG发动机或重型柴油发动机的高负载发动机环境中可以表现出优异的耐高温耐磨性的烧结阀座。解决方案：烧结阀座的特征在于其具有20-60质量％的Mo，3-12质量％的Cr，1-5质量％的Si，余量包含Co和不可避免的杂质，并且具有由基体和40〜70质量％的由Co基合金相和分散在其中的硅化钼构成的硬质相构成的结构体。基质不含珠光体，sorbite或贝氏体。版权所有（C）2007，JPO＆INPIT

24. 发明专利

DE19705527B4 未知
公开(公告)号：DE19705527B4
公开(公告)日：2005-02-10
申请号：DE19705527
申请日：1997-02-13
申请人： RIKEN KK , NISSAN MOTOR
发明人： ISHIBASHI AKIYOSHI , MIYAZAWA TOMONORI , MAKI KUNIO , FUJIKI AKIRA
IPC分类号： C22C33/02 , C22C38/00 , C22C38/52 , C22C38/44
摘要： An iron base sintered alloy with dispersed hard particles is provided which comprises by weight 3 to 15% nickel (Ni), 0.5 to 5% chromium (Cr), 0.5 to 2.0% carbon (C), the remainder iron (Fe) and unavoidable impurities. At least a part of nickel (Ni), molybdenum (Mo) and chromium (Cr) is contained in solid solution of an iron base matrix. At least a part of molybdenum (Mo) and chromium (Cr) is dispersed within the iron base matrix to form fine carbides or intermetallic compounds thereof. Uniformly dispersed within the iron base matrix are hard particles of 3 to 20% contain 50 to 57% chromium (Cr), 18 to 22% molybdenum (Mo), 8 to 12% cobalt (Co), 0.1 to 1.4% carbon (C), 0.8 to 1.3% silicon (Si) and the remainder iron (Fe) to strengthen the dispersion and remarkably improve wear resistance.

25. 发明专利

GB2321467B Iron based sintered alloy with hard particle dispersion and method for producing same 未知
公开(公告)号：GB2321467B
公开(公告)日：2001-05-09
申请号：GB9701651
申请日：1997-01-28
申请人： RIKEN KK , NISSAN MOTOR
发明人： ISHIBASHI AKIYOSKI , MIYAZAWA TOMONORI , MAKI KUNIO , FUJIKI AKIRA
IPC分类号： C22C33/02 , C22C38/00 , C22C38/52 , C22C38/44
摘要： An iron base sintered alloy with dispersed hard particles is provided which comprises by weight 3 to 15% nickel (Ni), 0.5 to 5% chromium (Cr), 0.5 to 2.0% carbon (C), the remainder iron (Fe) and unavoidable impurities. At least a part of nickel (Ni), molybdenum (Mo) and chromium (Cr) is contained in solid solution of an iron base matrix. At least a part of molybdenum (Mo) and chromium (Cr) is dispersed within the iron base matrix to form fine carbides or intermetallic compounds thereof. Uniformly dispersed within the iron base matrix are hard particles of 3 to 20% contain 50 to 57% chromium (Cr), 18 to 22% molybdenum (Mo), 8 to 12% cobalt (Co), 0.1 to 1.4% carbon (C), 0.8 to 1.3% silicon (Si) and the remainder iron (Fe) to strengthen the dispersion and remarkably improve wear resistance.

26. 发明专利

GB2321467A Iron base sintered alloy. 未知
公开(公告)号：GB2321467A
公开(公告)日：1998-07-29
申请号：GB9701651
申请日：1997-01-28
申请人： RIKEN KK , NISSAN MOTOR
发明人： ISHIBASHI AKIYOSKI , MIYAZAWA TOMONORI , MAKI KUNIO , FUJIKI AKIRA
IPC分类号： C22C33/02 , C22C38/00 , C22C38/52 , C22C38/44
摘要： An iron base sintered alloy with dispersed hard particles comprises by weight 3 to 15% nickel (Ni), 3 to 15% Mo, 0.5 to 5% chromuim (Cr), 0.5 to 2.0% carbon (C), the remainder iron (Fe) and unavoidable impurities. At least a part of the nickel (Ni), molybdenum (Mo) and chromium (Cr) is contained in solid solution of an iron base matrix. At least a part of molybdenum (Mo) and chromium (Cr) is dispersed within the iron base matrix to form fine carbides or intermetallic compounds thereof. Uniformly dispersed within the iron base matrix are 3 to 20% of one or more of the hard particles containing A) 50 to 57% chromium (Cr), 18 to 22% molybdenum (Mo), 8 to 12% cobalt (Co), 0.1 to 1.4% carbon (C), 0.8 to 1.3% silicon (Si) and the remainder iron (Fe) B) 27 to 33% Cr, 22 to 28% W, 8-12% Co, 1.7 to 2.3% C, 1-2% Si and the remainder Fe or C) 60-70% Mo, less than 0.01% C and the remainder Fe to strengthen the dispersion and remarkably improve wear resistance.

27. 发明专利

DE19705527A1 Hard phase dispersed iron@-based sintered alloy 未知
公开(公告)号：DE19705527A1
公开(公告)日：1998-08-20
申请号：DE19705527
申请日：1997-02-13
申请人： RIKEN KK , NISSAN MOTOR
发明人： ISHIBASHI AKIYOSHI , MIYAZAWA TOMONORI , MAKI KUNIO , FUJIKI AKIRA
IPC分类号： C22C33/02 , C22C38/00 , C22C38/52 , C22C38/44
摘要： The Fe-base sintered alloy comprises (in wt.%) 3-15 Ni, 3-15 Mo, 0.5-5 Cr, 0.5-2 C and balance Fe, in which Ni, Mo and Cr are dissolved in an Fe-based matrix, and Mo and Cr are dispersed as fine carbide, or intermetallic cpd. in the matrix, and 3-20 wt.% hard phase particles contg. (in wt.%) 50-57 Cr, 18-22 Mo, 8-12 Co, 0.1-1.4% C, 0.8-1.3 Si and balance Fe are uniformly dispersed in the matrix.

28. 发明专利

JP2000204913A VALVE LIFTER AND ITS MANUFACTURE 失效
公开(公告)号：JP2000204913A
公开(公告)日：2000-07-25
申请号：JP880099
申请日：1999-01-18
申请人： NISSAN MOTOR
发明人： YAMAGUCHI MASATO , MAKI KUNIO , ISHIHARA MOTOKATA , KANO MAKOTO , NAGAMI IKUO
IPC分类号： F01L1/14
摘要： PROBLEM TO BE SOLVED: To promote the reduction in weight and cost and improve the strength by connecting and integrating an iron and steel-made disc circumferential protruding part making contact with a cam to an aluminum alloy-made cylindrical part sliding along the valve lifter hole of a cylinder head in a valve lifter. SOLUTION: In a valve system 1 for reciprocating engine, a valve 2 is lowered along a valve guide 7 to open it at the same time when a cam 3 is rotated to press a valve lifter 4, thereby lowering the valve lifter 4 along the valve lifter hole 6a of a cylinder head 6. The valve lifter 4 comprises an iron and steel-made disc part 4P forming a crown surface making contact with the cam 3 and an aluminum alloy-made cylindrical part 4C, which are integrally connected with each other by frictionally pressing the respective connecting surfaces to each other and dispersing the solid phases. By utilizing the frictional pressure connection, generation of a brittle intermetallic compound in the connecting interface can be resolved to improve the mechanical strength.

29. 发明专利

JPH11173113A VALVE LIFTER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH11173113A
公开(公告)日：1999-06-29
申请号：JP34033097
申请日：1997-12-10
申请人： NISSAN MOTOR
发明人： MAKI KUNIO , MIYAZAWA TOMONORI , CHOKAI MAKI , KANO MAKOTO , NAGAMI IKUO
IPC分类号： F01L1/14
摘要： PROBLEM TO BE SOLVED: To provide a light and high strength valve lifter at a low cost with high productivity. SOLUTION: A crown surface making contact with a cam 3 is formed on the one surface side of a disc part 4P made of iron and steel and the slide surface of a cylinder head 6 with a valve lifter hole 6a is formed on the outer peripheral surface side of a cylinder part 4C made of an aluminum alloy to manufacture a valve lifter 4. In manufacture of the valve lifter, the disc part 4P made of iron and steel and the cylinder part 4C made of an aluminum alloy are molten and coagulated at respective joints through melt joining selected from electric resistance welding, friction pressure contact, electron beam welding, laser welding, and brazing for integral formation, through which the disc part 4C made of iron and steel and a cylinder part 4C made of an aluminum alloy are integrally formed at respective joints through a melt coagulation part to form a valve lifter 4.

30. 发明专利

JP2001294904A METHOD FOR PRODUCING IRON SINTERED PARTS 失效
公开(公告)号：JP2001294904A
公开(公告)日：2001-10-26
申请号：JP2000109588
申请日：2000-04-11
申请人： NISSAN MOTOR
发明人： MAKI KUNIO , MABUCHI YUTAKA , OKADA YOSHIO , FUJIKI AKIRA , HIRAO TAKAYUKI , MAEKAWA YUKIHIRO , YAMAGUCHI MASATO
IPC分类号： B22F3/24 , C21D1/06
摘要： PROBLEM TO BE SOLVED: To provide a method for producing iron sintered parts in which a strength and hardness of the surface, and its wear resistance in particular is improved. SOLUTION: In an intermediate process between the first sintering process and the second process, a surface modification is performed in which on the surface having a hardness after the first sintering is

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