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21. 发明专利

JP2005287119A Method of manufacturing stator core of motor and stator core of motor 审中-公开
标题翻译：制造电机定子芯和电机定子芯的方法
公开(公告)号：JP2005287119A
公开(公告)日：2005-10-13
申请号：JP2004094765
申请日：2004-03-29
申请人： Kyoho Mach Works Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社協豊製作所
发明人： OKAJIMA HIROSHI , WADA YOSHINOBU , NISHIO YOSHIHIRO , KUSUNOKI HARUHIRO
IPC分类号： H02K1/16 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To reduce tensile force and a bending force in the case of pulling of a beltlike member in the stator core of a motor in which the beltlike member is annularly pulled, molded and laminated.
SOLUTION: The stator core of the motor is constituted by pulling the yoke 16 of the beltlike member 12 having a yoke part 16 and comb teeth 18, molding in an annular stator annular member, and laminating the stator annular member. The yoke part 16 of the beltlike member 12 is molded in a waveform shape where the amount of displacement from the inside toward the outside of the yoke part 16 is large, before being molded annularly. In this waveform shape, the elongation of the yoke part 16 when the beltlike member 12 is molded in the annular stator annular member, is given in the waveform shape beforehand. Thus, the tensile force and the bending force when the yoke part 16 is pulled and molded annularly in the annular stable member can be reduced.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了在将带状构件环状拉动，成型和层压的电动机的定子铁芯中的带状构件拉动的情况下减小张力和弯曲力。解决方案：电动机的定子铁心通过将具有轭部件16和梳齿18的带状构件12的轭16拉成环形定子环形构件，并层压定子环形构件而构成。带状构件12的轭部16在被环形地模制之前被模制成从轭部16的内侧向外侧的位移量大的波形形状。在该波形形状中，将带状构件12模制在环形定子环形构件中时的轭部16的伸长率预先以波形形状给出。因此，可以减小轭状部16在环状的稳定部件中被环状地拉伸成形时的拉伸力和弯曲力。版权所有（C）2006，JPO＆NCIPI

22. 发明专利

JP2003268409A METHOD FOR MANUFACTURING SINTERED MEMBER 审中-公开
公开(公告)号：JP2003268409A
公开(公告)日：2003-09-25
申请号：JP2002071054
申请日：2002-03-14
申请人： TOYOTA MOTOR CORP
发明人： OKAJIMA HIROSHI
IPC分类号： B22F3/035 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered member, which causes little dimensional change of a sintered compact, and reduces dimensional variation among the sintered compacts due to difference among lots of a raw material powder. SOLUTION: The method for manufacturing the sintered member is characterized by blending a carbon powder which contains a superfluous amount corrected by a calculation for an amount of fine powders in a raw iron powder, to a raw iron powder. In addition, the method for manufacturing the sintered member is characterized by sintering the member to be sintered, at a temperature adjusted by correction calculated with a relational expression between the amount of fine powders in a raw iron powder and the sintering temperature for the sintered compact. Furthermore, the method for manufacturing the sintered member is characterized by sintering the member for a duration of time adjusted by correction calculated with a relational expression between the amount of fine powders in the raw iron powder and the sintering duration of time for the sintered compact. The method for manufacturing the sintered member can include a dimension correction step and a heat treatment step after the above sintering step, as needed. COPYRIGHT: (C)2003,JPO

23. 发明专利

JP2003268408A METHOD FOR MANUFACTURING SINTERED MEMBER 审中-公开
公开(公告)号：JP2003268408A
公开(公告)日：2003-09-25
申请号：JP2002071052
申请日：2002-03-14
申请人： TOYOTA MOTOR CORP
发明人： OKAJIMA HIROSHI
IPC分类号： B22F3/035 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered member, which causes little dimensional change of a sintered compact, and reduces dimensional variation among the sintered compacts due to a dimensional error in manufacturing a forming die. SOLUTION: The method for manufacturing the sintered member is characterized by blending a carbon powder which superfluously contains a amount corrected by calculation for the dimensional error in manufacturing the forming die, to a raw iron powder. In addition, the method for manufacturing the sintered member is characterized by sintering the member to be sintered at temperature adjusted by correction calculated with a relational expression between the dimensional error in manufacturing the forming die and the sintering temperature for the member. Furthermore, the process for manufacturing the sintering member is characterized by sintering the member for a duration of time adjusted by correction calculated with a relational expression between the dimensional error in manufacturing the forming die and the sintering duration of time for the member. The method for manufacturing the sintered member can include a dimension correction step and a heat treatment step after the above sintering step, as needed. COPYRIGHT: (C)2003,JPO

24. 发明专利

JPH06220591A WEAR RESISTANT IRON-BASE SINTERED ALLOY AND ITS PRODUCTION 失效
公开(公告)号：JPH06220591A
公开(公告)日：1994-08-09
申请号：JP25870993
申请日：1993-10-15
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA , MANABE AKIRA , KANEKO TADATAKA , OKAJIMA HIROSHI
IPC分类号： C22C33/02 , C22C38/00
摘要： PURPOSE:To produce an iron-base sintered alloy for valve seat excellent in wear resistance. CONSTITUTION:A powder mixture is prepared by mixing, by weight ratio, 2-30% of Ni-base alloy powder having a composition consisting of 5-20% Mo, 20-40% Cr, 10-20% W, and the balance Ni with inevitable impurities and 0.2-2% of graphite powder with an iron-base alloy powder having a composition consisting of, by weight ratio, 2-15% Co, 2-10%, preferably >3%-10%, Mo, and the balance Fe with inevitable impurities, which is compacted. Further, 0.2-2% of solid lubricant is mixed with the above, if necessary, and they are compacted. The resulting green compact is sintered at a temp. between 1323K and the melting point of the Ni-base alloy powder. Because alloy powders are used and matrix structure is sintered, the degree of homogenization of entering into solid solution of alloying elements in a matrix is increased and superior corrosion resistance, oxidation resistance, and wear resistance can be obtained with minimal alloy quantity, and further, wear resistance can be improved because Mo, Cr, and W in the Ni-base alloy powder combine with C to form carbides. Moreover, machinability can be improved by adding free cutting agent.

25. 发明专利

JP2005237134A Process, facility and system for manufacturing sr motor core, 审中-公开
标题翻译：制造SR电机芯的工艺，设备和系统，
公开(公告)号：JP2005237134A
公开(公告)日：2005-09-02
申请号：JP2004044354
申请日：2004-02-20
申请人： Kyoho Mach Works Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社協豊製作所
发明人： WADA YOSHINOBU , OKAJIMA HIROSHI
IPC分类号： H02K15/02
CPC分类号： Y02T10/641
摘要： PROBLEM TO BE SOLVED: To provide process, facility and system for manufacturing a switched reluctance (SR) motor core, exhibiting superior yield in material, without lowering the motor performance.
SOLUTION: An SR motor core is manufactured, by performing a process comprising a step of producing a pair of element steel plate 21 for stator core and element steel plate 22 for rotor core by dividing a single band steel in the longitudinal direction into two such that the parts, corresponding the salient pole part 30a of a stator core and the interpolar recess 30b of a rotor core; and the interpolar recess 31a of the stator core and the salient pole part 31b of the rotor core face each other, while sharing a substantially identical contour, and a step of forming the stator core and rotor core for an SR motor, by executing surface winding of these element steel plates 21 and 22 in spiral shape.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供用于制造开关磁阻（SR）电机芯的工艺，设备和系统，在不降低电机性能的情况下，显示出优异的材料成本。解决方案：通过执行包括以下步骤的方法制造SR电动机芯，该方法包括通过将纵向方向上的单带钢分为纵向方向，分别制造用于定子铁心的一对元素钢板21和转子铁芯的元件钢板22 两个部件，对应于定子铁心的凸极部分30a和转子芯的极间凹槽30b; 并且定子铁心的极间凹部31a和转子铁芯的凸极部31b相互面对，同时具有大致相同的轮廓，以及通过执行表面绕组形成用于SR电动机的定子铁心和转子铁心的步骤这些元件钢板21和22是螺旋形的。版权所有（C）2005，JPO＆NCIPI

26. 发明专利

JP2004115868A Method for manufacturing sintered member 审中-公开
标题翻译：制造烧结构件的方法
公开(公告)号：JP2004115868A
公开(公告)日：2004-04-15
申请号：JP2002280968
申请日：2002-09-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OKAJIMA HIROSHI
IPC分类号： B22F3/24 , B22F3/10 , C22C38/00 , C22C38/18 , C22C38/20
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered member having high dimentional precision and capable of reducing a dimensional intra-lot variation caused by the lot of raw material powder without significantly changing the conventional process and management level.
SOLUTION: This manufacturing method comprises at least a raw material powder preparing step of blending raw iron powder and carbon powder to prepare raw material powder, a molding step of molding the raw material powder to form green compact, a sintering step of sintering the green compact to form a sintered body, and a heat treatment step of performing the heat treatment of the sintered body. The correlation between the dimensional changes and the carbon content in the green compact sintering step and the correlation between the dimensional changes and the carbon content in the green compact heat treatment step are positive on one side, and negative on the other side. A first of the raw material powder of this characteristic is ferrous alloy powder containing, by weight, at least 2-4% Cr and a second of the raw powder is mixed powder containing 0.7-1.3% copper powder for the total raw powder of 100%.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种制造具有高尺寸精度的烧结构件的方法，并且能够在不显着改变常规工艺和管理水平的情况下，减少由原料粉末引起的尺寸内批量变化。解决方案：该制造方法至少包括将生铁粉和碳粉混合以制备原料粉末的原料粉末制备步骤，将原料粉末成型以形成生坯的成型步骤，烧结步骤形成烧结体的生坯，以及进行烧结体的热处理的热处理工序。生坯压实烧结工序中的尺寸变化与碳含量之间的相关关系以及生坯压制热处理工序中的尺寸变化与碳含量的相关性在一侧为正，另一侧为负。该特征的原料粉末中的第一种是含有至少2-4％Cr的铁合金粉末，另一种原料粉末是含有0.7-1.3％铜粉末的混合粉末，其总原料粉末为100 ％。版权所有（C）2004，JPO

27. 发明专利

JP2003268401A METHOD FOR MANUFACTURING SINTERED MEMBER 审中-公开
公开(公告)号：JP2003268401A
公开(公告)日：2003-09-25
申请号：JP2002071055
申请日：2002-03-14
申请人： TOYOTA MOTOR CORP
发明人： OKAJIMA HIROSHI
IPC分类号： B22F1/00 , B22F3/10 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a sintered member, which causes little dimensional change of a sintered compact, and reduces dimensional variation among the sintered compacts due to difference among lots of a raw material powder. SOLUTION: The method for manufacturing the sintered member has a raw material powder preparation step of blending a carbon powder which superfluously contains a amount corrected by calculation for an amount of at least oxygen contained in the raw iron powder, to the raw iron powder. The above preparation step can include blending the carbon powder which superfluously contains a amount corrected by calculation for an amount of oxygen and further carbon contained in the raw iron powder, to the raw iron powder. In addition, the method for manufacturing the sintered member is characterized by sintering the member to be sintered, at a calculated temperature according to a relational expression between the amount of oxygen contained in the raw iron powder and the sintering temperature of the sintered compact. Furthermore, the method for manufacturing the sintered member is characterized by sintering the member to be sintered, for a duration of time a relational expression between the amount of oxygen in the raw iron powder and the sintering time of the sintered compact. The method for manufacturing the sintered member can include a dimension correction step and a heat treatment step after the above sintering step, as needed. COPYRIGHT: (C)2003,JPO

28. 发明专利

JPH06212367A IRON BASE ALLOY POWDER FOR SINTERING AND WEAR RESISTANT IRON BASE SINTERED ALLOY 失效
公开(公告)号：JPH06212367A
公开(公告)日：1994-08-02
申请号：JP23845493
申请日：1993-09-24
申请人： TOYOTA MOTOR CORP
发明人： TAKAHASHI YOSHITAKA , MANABE AKIRA , KANEKO TADATAKA , OKAJIMA HIROSHI
IPC分类号： C22C33/02 , C22C38/00
摘要： PURPOSE:To provide iron base alloy powder for sintering excellent in compressibility and corrosion resistance and to provide an iron base sintered alloy excellent in wear resistance. CONSTITUTION:The iron base alloy powder is formed of one contg., as alloy elements, by weight, 2 to 15% Co and 2 to 10% Mo, preferably, by >3 to 10%, and the balance Fe with inevitable impurities, and the iron base sintered alloy is obtd. by mixing the same iron base alloy powder with 0.2 to 2.1% graphite powder and a lubricant for compacting and executing compacting and sintering. Since the solid solution homogenizing degree into the matrix of allay elements is high, excellent corrosion resistance, oxidation resistance and wear resistance can be obtd. by small amounts of alloys compared to the case of the conventional method in which elementary powder is mixed. Furthermore, since Co and Mo uniformly enter into solid solution into an Fe matrix, the structure of the matrix is formed into a bainitic one, and its wear resistance is made excellent. Moreover, Pb, Cu, a Pb-Cu alloy and alloys essentially consisting of the same are infiltrated into the sintered alloy to improve its seizing resistance and wear resistance.

29. 发明专利

JPH0633184A PRODUCTION OF SINTERED ALLOY FOR VALVE SEAT EXCELLENT IN WEAR RESISTANCE 失效
公开(公告)号：JPH0633184A
公开(公告)日：1994-02-08
申请号：JP19424292
申请日：1992-07-21
申请人： TOYOTA MOTOR CORP , NIPPON FUNMATSU GOKIN KK
发明人： KANEKO TADATAKA , TAKAHASHI YOSHITAKA , OKAJIMA HIROSHI , MAEJIMA TAKASHI , SEKIDO REI
IPC分类号： B22F3/24 , C22C33/02 , C22C38/00 , F01L3/02
摘要： PURPOSE:To produce an iron-base sintered alloy for valve seat excellent in heat, corrosion and wear resistances and having high strength by mixing powders of carbon, Co, Fe, FeMo, etc., with a powder of iron-base alloy of specific composition at specific ratio, compacting the resulting powder mixture, performing sintering, and then applying subzero treatment to the resulting sintered compact. CONSTITUTION:As a ferrous matrix composition constituting a matrix, a powder of an iron-base alloy having a composition consisting of, by weight, 0.2-0.6% C, 0.6-1.2% Si, 4.5-5.5% Cr, 1.0-1.5% Mo, 0.8-1.2% V, and the balance Fe with inevitable impurities is used. A powder mixture is prepared by mixing >=60% of the iron-base alloy powder, 0.3-1.5% carbon powder, 5-15% Co powder, 0.2-30% of one or more kinds among the powders of Fe, Ni, and Cu, and 2.0-20% of hard grain powder of one or more kinds among FeMo, FeW, and FeCr. This powder mixture is compacted and sintered. Then the resulting sintered compact is subjected to subzero treatment and to tempering treatment, by which a martensite structure or sorbite structure is formed.

30. 发明专利

JP2005184997A Process for producing stator core of motor, shaping member of stator core of motor, and stator core of motor 审中-公开
标题翻译：制造电机定子芯，电机定子芯片成型机及电机定子芯的工艺
公开(公告)号：JP2005184997A
公开(公告)日：2005-07-07
申请号：JP2003422620
申请日：2003-12-19
申请人： Kyoho Mach Works Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社協豊製作所
发明人： OKAJIMA HIROSHI , WADA YOSHINOBU , NISHIO YOSHIHIRO , KUSUNOKI HARUHIRO
IPC分类号： H02K1/18 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To reduce distortion on the annular outer circumference side of the stator core of a motor produced by laminating stripe members after being stretched and shaped annularly. SOLUTION: Stator core of a motor is produced by shaping an arcuate stripe member 12 into a stator annular member and laminating a plurality of the stator annular members 14. The arcuate stripe member 12 is shaped into the stator annular member by stretching the end of a yoke part 16 on the side opposite to the comb tooth 18. The arcuate stripe member 12 is different from a common linear stripe member and has arcuate stripe shape having curvature centering the forward end side of the comb tooth 18. Since elongation is reduced on the outer circumferential side of the yoke part 16, distortion can be reduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：减小在环状拉伸成形之后通过层压条状构件而产生的电动机的定子芯的环形外周侧的变形。解决方案：通过将弓形条形构件12成形为定子环形构件并层叠多个定子环形构件14来产生电动机的定子芯。通过将弓形条状构件12拉伸成定子环形构件轭部件16的与梳齿18相对的一侧的端部。弓形条形部件12与共同的线状条状部件不同，并且具有以梳齿18的前端侧为中心的曲率的弓形条纹形状。由于伸长率在轭部16的外周侧减少，可以减小变形。版权所有（C）2005，JPO＆NCIPI

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