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1. 发明专利

JP2008063649A Powder for dust core, its production method and method for producing dust core 审中-公开
标题翻译：粉尘粉，其生产方法和生产粉尘核心的方法
公开(公告)号：JP2008063649A
公开(公告)日：2008-03-21
申请号：JP2006245887
申请日：2006-09-11
申请人： Asmo Co Ltd , Hitachi Powdered Metals Co Ltd , Kobe Steel Ltd , アスモ株式会社 , 日立粉末冶金株式会社 , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI , ISHIHARA CHIO , IWAKIRI MAKOTO , YAMADA SOHEI , JIKO YASUKUNI
IPC分类号： B22F1/02 , B22F3/00 , H01F1/26 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a powder for a dust core whose formability can be improved to a standard more excellent than that of the conventional powder for a dust core composed of a phenolic resin-covered metal powder without causing troubles such as the remarkable deterioration in the strength of a formed body as such caused by lubricant addition; to provide its production method; and to provide a method for producing a dust core. SOLUTION: (1) Regarding the powder for a dust core, the surface of a soft magnetic powder is covered with one or more kinds selected from a phenolic resin, an epoxy resin and a silicone resin by the amount of 0.01 to 0.5 mass% to the amount of the soft magnetic powder, and a polyamide resin with the average particle diameter of ≤100 μm is stuck to the surface thereof by the amount of 0.l to 1.0 mass% to the amount of the soft magnetic powder. (2) Regarding the method for producing powder for a dust core from a mixed body comprising a liquid body in which the above resin is dissolved into an organic solvent and a soft magnetic powder, the organic solvent is volatilized, so as to cover the surface of the soft magnetic powder with the above resin, thereafter, a polyamide resin with the average particle diameter of ≤100 μm is added, and mixing is performed. (3) Regarding the method for producing a dust core, when the powder for a dust core is subjected to compression molding, a mold lubrication molding process is used. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种粉芯，其成形性可以提高到与常规的由酚醛树脂覆盖的金属粉末组成的粉芯的粉末相比优异的标准，而不会引起诸如润滑剂添加引起的成形体强度的显着劣化; 提供其生产方式; 并提供一种制造防尘芯的方法。（1）关于粉芯的粉末，软磁粉末的表面被选自酚醛树脂，环氧树脂和有机硅树脂中的一种或多种，以0.01至0.5的量覆盖相对于软磁性粉末的量为质量％，平均粒径为100μm的聚酰胺树脂与其表面相对于软磁性粉末的量粘合0.1〜1.0质量％。（2）关于从包含上述树脂溶解在有机溶剂中的液体和软磁性粉末的混合体制造粉芯的粉末的方法，有机溶剂挥发以覆盖表面的软磁性粉末，然后加入平均粒径≤100μm的聚酰胺树脂，进行混合。（3）关于防尘芯的制造方法，在将压粉用粉末进行压缩成型的情况下，使用模具润滑成型工序。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008066665A Powder for dust core, dust core and their production process 审中-公开
标题翻译：粉煤灰，粉煤灰及其生产工艺
公开(公告)号：JP2008066665A
公开(公告)日：2008-03-21
申请号：JP2006245888
申请日：2006-09-11
申请人： Asmo Co Ltd , Hitachi Powdered Metals Co Ltd , Kobe Steel Ltd , アスモ株式会社 , 日立粉末冶金株式会社 , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI , ISHIHARA CHIO , IWAKIRI MAKOTO , YAMADA SOHEI , JIKO YASUKUNI
IPC分类号： H01F1/44 , B22F1/02
摘要： PROBLEM TO BE SOLVED: To provide powder for dust core with which a high quality core is produced when a dust core is pressure molded using soft magnetic powder coated with phenol resin as a material by filling a die smoothly with the material powder without melting resin even if the material powder is preheated near the molding temperature.
SOLUTION: Surface of soft magnetic powder is coated with phenol resin and/or silicon resin at a rate of 0.01-0.5% for the weight of the powder wherein the coating resin contains S: 0.001-0.05%, and/or P: 0.005-0.2% for the total weight of soft magnetic powder containing the resin. When fluidity test is performed in a temperature range of 110-150°C, the powder for dust core exhibits such a fluidity as (a) the powder flows without stopping under nonvibration state or (b) even if the flow is stopped, the powder flows without stopping after a vibration is imparted.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供使用以酚醛树脂作为材料的软磁性粉末作为材料来压制成型时产生高质量铁心的粉尘芯的粉末，通过与材料粉末平滑地填充模具而没有即使材料粉末在成型温度附近被预热，也会熔化树脂。＆lt; P＆gt;解决方案：涂覆树脂含有S：0.001-0.05％的粉末的重量，软骨粉末的表面以0.01-0.5％的比例涂覆酚醛树脂和/或硅树脂，和/或P ：含有树脂的软磁性粉末的总重量为0.005-0.2％。当在110-150℃的温度范围内进行流动性测试时，粉尘粉末的粉末表现出如下流动性：（a）粉末在非振动状态下停止流动，或（b）即使流动停止，粉末在施加振动后不停止地流动。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008063652A Dust core, and iron based powder for dust core 有权
标题翻译： DUST CORE和基于铁粉的粉剂
公开(公告)号：JP2008063652A
公开(公告)日：2008-03-21
申请号：JP2006245920
申请日：2006-09-11
申请人： Asmo Co Ltd , Hitachi Powdered Metals Co Ltd , Kobe Steel Ltd , アスモ株式会社 , 日立粉末冶金株式会社 , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI , ISHIHARA CHIO , IWAKIRI MAKOTO , YAMADA SOHEI , JIKO YASUKUNI
IPC分类号： B22F1/00 , B22F1/02 , H01F1/20 , H01F1/24
CPC分类号： H01F1/26 , B22F1/0007 , B22F1/0088 , B22F1/02 , B22F2003/026 , B22F2003/145 , B22F2003/248 , B22F2998/10 , C22C2202/02 , H01F1/24 , H01F3/08 , H01F41/0246 , Y10T428/12028 , Y10T428/12056 , B22F1/0059 , B22F1/0085 , B22F3/02 , B22F3/24
摘要： PROBLEM TO BE SOLVED: To provide an iron based powder for a dust core which reduces the coercive force of a dust core, and in which its hysteresis loss can be reduced; further, to provide an iron based powder for a dust core which can reduce the iron loss of a dust core by reducing eddy current loss as well as hysteresis loss; and to provide a dust core having low iron loss as well. SOLUTION: When at least 50 pieces of iron based powder sections are observed, and, the crystal grain size of each iron based powder particle is measured, and a crystal grain size distribution at least including the maximum crystal grain size is obtained: ≥70% of the crystal grain sizes shall be ≥50 μm. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于减小粉尘芯的矫顽力的铁心粉末，并且其磁滞损耗可以减小; 此外，提供一种用于粉尘芯的铁基粉末，其可以通过减少涡流损耗以及滞后损耗来降低粉尘芯的铁损; 并提供具有低铁损的防尘芯。解决方案：当观察至少50个铁基粉末部分时，测量每个铁基粉末颗粒的晶粒尺寸，并且获得至少包括最大晶粒尺寸的晶粒尺寸分布： ≥70％的晶粒尺寸应≥50μm。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2008063651A Iron based soft magnetic powder for dust core, its production method, and dust core 有权
标题翻译：基于铁粉的软磁粉，其生产方法和粉芯
公开(公告)号：JP2008063651A
公开(公告)日：2008-03-21
申请号：JP2006245918
申请日：2006-09-11
申请人： Asmo Co Ltd , Hitachi Powdered Metals Co Ltd , Kobe Steel Ltd , アスモ株式会社 , 日立粉末冶金株式会社 , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI , ISHIHARA CHIO , IWAKIRI MAKOTO , YAMADA SOHEI , JIKO YASUKUNI
IPC分类号： B22F1/02 , H01F1/26
CPC分类号： H01F3/08 , B22F1/0007 , B22F1/0088 , B22F1/02 , C22C2202/02 , H01F1/24 , H01F1/26 , H01F41/0246 , Y10T428/2995
摘要： PROBLEM TO BE SOLVED: To provide an iron based powder for a dust core in which the space between iron powder grains can be effectively insulated even if the amount of an insulating material is reduced for performing forming at a high density, and having excellent mechanical strength, and further having excellent thermal stability so as to maintain electric insulation properties even if being subjected to high temperature heat treatment. SOLUTION: Regarding the iron based soft magnetic powder for a dust core, on the surface of iron based soft magnetic powder, a phosphoric acid based chemical film and a silicone resin film are formed in this order. The phosphoric acid based chemical film comprises one or more kinds of elements selected from the group consisting of Co, Na, S, Si and W. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于防尘芯的铁基粉末，其中即使减少用于高密度成形的绝缘材料的量，也可以有效地绝缘铁粉颗粒之间的空间，并且具有优异的机械强度，并且还具有优异的热稳定性，以便即使进行高温热处理也能够保持电绝缘性。＆lt; P＆gt;解决方案：关于铁心型铁磁软磁性粉末，在铁基软磁性粉末的表面上依次形成磷酸系化学膜和有机硅树脂膜。磷酸类化学膜包含选自Co，Na，S，Si和W的一种或多种元素。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2005330523A Method for producing metal-ceramic sintered laminated body 有权
标题翻译：用于生产金属陶瓷烧结层压体的方法
公开(公告)号：JP2005330523A
公开(公告)日：2005-12-02
申请号：JP2004148717
申请日：2004-05-19
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： ICHIKAWA JUNICHI , IWAKIRI MAKOTO , KOHIDA TOMOYUKI
IPC分类号： B32B15/04 , B22F7/06 , C04B35/10 , H01L35/08 , H01L35/32 , H01L35/34
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a metal-ceramic sintered laminated body by which the number of processes is reduced and sintering temperature is lowered more than heretofore. SOLUTION: At the time when two kinds of copper powder and alumina powder, two kinds of copper powder and a powdery mixture of copper powder and alumina powder, or three kinds of copper powder, a powdery mixture of copper powder and alumina powder and alumina powder are stacked and packed into a molding die, so as to be subjected to compression molding, and the obtained compression-molded body is sintered at a temperature lower than the melting point of copper, bismuth oxide is added at least to the alumina powder for forming a ceramics layer in the ratio of 0.1 to 5.0 mass%. Thus, a metal-ceramics sintered laminated body 5 (5A to 5E) in which a metal layer(s) 3 (3a, 3b) by the copper powder, a mixed layer(s) 21 (21a, 22a, 23, 23a) by the powdery mixture, and a ceramics layer 1 by the alumina powder are laminated is obtained. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种制造金属陶瓷烧结层叠体的方法，通过该方法，工艺的数量减少，烧结温度比以前降低。
解决方案：当两种铜粉和氧化铝粉末，两种铜粉和铜粉和氧化铝粉末的粉末混合物，或三种铜粉，铜粉和氧化铝粉末的粉末混合物并将氧化铝粉末堆叠并填充到成型模具中以进行压缩成型，并将所得压缩成型体在低于铜的熔点的温度下烧结，氧化铋至少加入到氧化铝用于形成0.1〜5.0质量％的陶瓷层的粉末。因此，通过铜粉末的金属层3（3a，3b），混合层21（21a，22a，23,23a）的金属陶瓷烧结层叠体5（5A〜5E）通过粉末状混合物和层叠由氧化铝粉末制成的陶瓷层1。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005072112A Forming method of dust core 有权
标题翻译： DUST CORE的形成方法
公开(公告)号：JP2005072112A
公开(公告)日：2005-03-17
申请号：JP2003296993
申请日：2003-08-21
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： IWAKIRI MAKOTO , KAGAYA TAKESHI , ISHIHARA CHIO
IPC分类号： B30B11/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/035 , B30B11/02 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To form a dust core whose compact extraction pressure is low and which does not have metallic mold galling and a crack. SOLUTION: When mixed powder where 1 to 5 mass% of resin powder is mixed to iron powder or iron powder forming an insulating coat is compressed and formed as a forming method of the dust core, molding lubricant powder is applied to a cavity wall face of the metallic mold for forming powder, whose temperature is at a range of 60°C to 100°C, in a range of 0.2 to 2.0mg/cm 2 per unit area. A cavity is filled with mixed powder. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：形成紧凑的提取压力低并且不具有金属模具磨损和裂纹的压粉芯。解决方案：当将形成绝缘涂层的铁粉或铁粉中混合1〜5质量％的树脂粉末的混合粉末作为压粉芯的成形方法进行压缩成形时，将成型润滑剂粉末涂布于空腔用于形成粉末的金属模具的壁面，其温度在60℃至100℃的范围内，在每单位面积的0.2至2.0mg / cm 2的范围内。空腔充满混合粉末。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004291070A Method and apparatus for molding multilayer green compact 有权
公开(公告)号：JP2004291070A
公开(公告)日：2004-10-21
申请号：JP2003090228
申请日：2003-03-28
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： SAITO SHIGEYUKI , IWAKIRI MAKOTO , MASUDA TADAO
IPC分类号： B30B11/00 , B22F3/035 , B22F7/06 , B30B11/02 , B30B15/30
CPC分类号： B30B15/306 , B30B11/06 , B30B15/304
摘要： PROBLEM TO BE SOLVED: To realize molding of a multilayer green compact of a desired shape and to efficiently mold the multilayer green compact without complicating the structure of the apparatus and the operation thereof. SOLUTION: The first layer is formed by performing at least one operation among the operation of filling first powder into a die cavity during the advance and retreat process of a powder feeder 5 and packing the filled powder by means of an upper punch 2 or a punch exclusive of the upper punch and a lower punch 3 during or after the process of moving the surface of the filled powder downward of a die 1 surface, the operation of downwardly moving the filled powder, the premolding operation, the operation of scrapping off the powder sticking to the die and core from each other, and the operation of smoothing the surface of the filled powder. Then, the filling, packing and the respective above operations are successively repeated from above relating to the second and subsequent powder and the compression molding is performed by means of the upper and lower punches after the last powder is filled. COPYRIGHT: (C)2005,JPO&NCIPI

8. 发明专利

JP2005305530A Powder molding method of two-layer green compact 审中-公开
标题翻译：两层绿色压缩粉末成型方法
公开(公告)号：JP2005305530A
公开(公告)日：2005-11-04
申请号：JP2004129258
申请日：2004-04-26
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： KAWADA HIDEAKI , TOKITA HARUMI , IWAKIRI MAKOTO
IPC分类号： F01L3/02 , B30B11/00 , B30B11/02 , F01L3/24
摘要： PROBLEM TO BE SOLVED: To provide a powder molding method of two-layer green compact capable of maintaining simplicity of a powder molding device and powder molding step for two-layer green compact, preventing occurrence of any trouble even when the powder molding pressure during the compression is increased, and consistently performing the powder molding with high accuracy.
SOLUTION: The powder molding method of two-layer green compact comprises a first powder filling step of filling first powder 5 in a cavity formed by an inner hole of a die, a core rod and a lower punch by using a powder molding device having a die 11, a lower punch 13, a core rod 12, an upper punch 14, and a temporary pushing punch 15, a temporary compression step of temporarily compressing first powder 5 by the temporary pushing punch, a space forming step of forming a space below a temporarily compressed body which is temporarily compressed in, for example, the temporary compression step by lowering the lower punch or elevating the die, and a second powder filling step of filling second powder 6 in a cavity formed by an upper face of the temporary compressed body, the inner hole of the die, and the core rod, and a permanent compression step of lowering the upper punch which carries out compacting, integrally and densely compressing second powder and the temporarily compressed body while downwardly moving them on the space side.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题：为了提供能够保持粉末成型装置的简单性和双层生坯的粉末成型步骤的双层压坯的粉末成型方法，即使在粉末成型时也不会发生任何问题压缩期间的压力增加，并且以高精度一致地进行粉末成型。解决方案：两层生坯的粉末成型方法包括：第一粉末填充步骤，通过使用粉末成型将第一粉末5填充在由模具的内孔，芯棒和下冲头形成的空腔中具有模具11，下冲头13，芯棒12，上冲头14和临时推压冲头15的装置，通过临时推动冲头暂时压缩第一粉末5的临时压缩步骤，形成在临时压缩体的下方的空间的空间，其通过下降下冲头或升降模具而临时压缩在临时压缩步骤中;以及第二粉末填充步骤，将第二粉末6填充在由上表面形成的空腔中临时压缩体，模具的内孔和芯棒，以及永久压缩步骤，使上冲头进行压实，整体和密集地压缩第二粉末和临时压缩体同时向下移动它们在空间侧。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005033095A Method for manufacturing thermal stress relaxation pad for thermoelectric converter 审中-公开
标题翻译：用于制造热电转换器的热应力松弛垫的方法
公开(公告)号：JP2005033095A
公开(公告)日：2005-02-03
申请号：JP2003272735
申请日：2003-07-10
申请人： Hitachi Powdered Metals Co Ltd , 日立粉末冶金株式会社
发明人： ICHIKAWA JUNICHI , SAITO SHIGEYUKI , IWAKIRI MAKOTO
IPC分类号： B22F7/06 , B22F7/08 , H01L35/30 , H01L35/32 , H01L35/34
摘要： PROBLEM TO BE SOLVED: To certainly function an electrical insulating layer by preventing a useless short circuit by a metal material in a method for compression molding a thermal stress relaxation pad for a thermoelectric converter by using a metal die for molding.
SOLUTION: A method for manufacturing the thermal stress relaxation pad for the thermoelectric converter includes sequentially laminating and charging of an electric insulating powder, mixed powder and metal powder (copper powder) from below in this sequence and compression molding to a compression raw material 10a, and laminating and charging of the mixed powder and the metal powder and compression molding to a compression raw material 10b. The method further includes bringing of a mixture layer 3 of the compression raw material 10b into contact with the electrical insulating layer 2 of the compression raw material 10a, superposing of them, holding of this state, heating of the superposed material at a temperature lower than a melting point of the metal contained in a non-oxidative atmosphere, sintering, and sintering and connecting of the compression raw materials 10a, 10b. Thus, the thermal stress relaxation pad 1A is obtained.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过使用用于模制的金属模具，通过防止在热电转换器的热应力松弛垫的压缩成型方法中通过金属材料的无用的短路来肯定地发挥电绝缘层的功能。解决方案：制造用于热电转换器的热应力松弛垫的方法包括从下面按顺序将电绝缘粉末，混合粉末和金属粉末（铜粉）按顺序层压和充电，并将压缩成型压缩成压缩原料材料10a，并将混合粉末和金属粉末层压并充入压缩原料10b。该方法还包括使压缩原料10b的混合物层3与压缩原料10a的电绝缘层2接触，将其重叠，保持该状态，将叠加材料在低于包含在非氧化性气氛中的金属的熔点，烧结和压缩原料10a，10b的烧结和连接。因此，获得热应力松弛垫1A。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2003014085A Built-up camshaft 审中-公开
标题翻译：内置CAMSHAFT
公开(公告)号：JP2003014085A
公开(公告)日：2003-01-15
申请号：JP2001201610
申请日：2001-07-03
申请人： Hitachi Powdered Metals Co Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 日立粉末冶金株式会社
发明人： SUGAYA YOSHIMI , IWAKIRI MAKOTO , KONO TAKAO , HIRAO TAKAYUKI , NISHIMURA KIMIO , ITAKURA KOJI
IPC分类号： F01L1/04 , B21D39/00 , B21D53/84 , C22C38/00 , C22C38/16 , F16H53/02
摘要： PROBLEM TO BE SOLVED: To provide a built-up camshaft prevented from cracking of a cam piece when enlarging the diameter of the shaft.
SOLUTION: In this built-up camshaft constituted by inserting a hollow shaft 2 in a cam piece 1 and then enlarging the diameter of the shaft 2 to unseparably integrate both members, the cam piece 1 is formed by quenching and tempering an iron based sintered molding warm-molded so that the density is in a range of 7.1-7.4 g/cm
3 . The composition of the iron based sintered molding contains Cu: 1.5-4 wt.% and C: 0.7-1.0 wt.% and the rest formed of Fe and unavoidable impurities.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种组合凸轮轴，当扩大轴的直径时防止凸轮件的开裂。解决方案：在该组合凸轮轴中，通过将空心轴2插入凸轮件1中，然后扩大轴2的直径以使两个构件不可分离地组合，凸轮件1通过淬火和回火铁基烧结成型温热成型，密度在7.1-7.4g / cm 3的范围内。铁基烧结成型体的组成包含Cu：1.5-4重量％，C：0.7-1.0重量％，其余由Fe和不可避免的杂质形成。

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