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21. 发明专利

JP2007194273A Dust core and soft magnetic metal powder therefor 审中-公开
标题翻译：粉尘和软磁性金属粉末
公开(公告)号：JP2007194273A
公开(公告)日：2007-08-02
申请号：JP2006008865
申请日：2006-01-17
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UEDA MASATERU , UENOSONO SATOSHI , MAETANI TOSHIO
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , B22F3/00 , H01F1/26 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide soft magnetic metal powder which is superior in compressibility and has high insulation.
SOLUTION: A surface of atomized pure iron powder or atomized alloy powder having an oxide layer on a surface is covered with an insulating substance layer. The oxide layer and the insulating substance layer are integrated with solid phase reaction by coupling reinforcement treatment, and a metallic compound monolayer is obtained.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供压缩性优异且绝缘性高的软磁性金属粉末。解决方案：表面上具有氧化物层的雾化纯铁粉末或雾化合金粉末的表面被绝缘物质层覆盖。氧化物层和绝缘物质层通过耦合增强处理与固相反应结合，得到金属化合物单层。版权所有（C）2007，JPO＆INPIT

22. 发明专利

JP2007169713A Iron-based powdery mixture for powder metallurgy 有权
标题翻译：用于粉末冶金的基于铁的粉末混合物
公开(公告)号：JP2007169713A
公开(公告)日：2007-07-05
申请号：JP2005368835
申请日：2005-12-21
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： OZAKI YUKIKO , UENOSONO SATOSHI , SUGIHARA YUTAKA
IPC分类号： B22F1/00 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an iron-based powdery mixture with which machinability of a sintered compact can be improved without bringing about deterioration in its mechanical properties. SOLUTION: The iron-based powdery mixture is obtained by mixing iron-based powder with powder for alloy, powder for improving machinability and further, a lubricant. As the powder for improving machinability, manganese sulfide powder with the average particle diameter of 1 to 60 μm and/or calcium fluoride powder with the average particle diameter of 1 to 60 μm is used. The powder for improving machinability is comprised by 0.1 to 1.5 mass% to the total content of the iron-based powder, the powder for alloy and the powder for improving machinability. Further, the powder for improving machinability has a grain size distribution similar to the grain size distribution of holes in an iron-based sintered compact obtained by subjecting an iron-based powdery mixture mixed with iron-based powder, powder for alloy and a lubricant to pressure-compacting and sintering. In this way, the holes in the sintered compact can be reduced, intermittent impact to a tool is reduced, and the service life of the tool is prolonged. Further, a part or the whole of the iron-base powder can be used as the iron-based powder applying a segregation-preventive treatment, in which the powder for alloy and/or the powder for improving the machinability, are stuck on the surface with a binder. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种铁基粉末混合物，其可以改善烧结体的机械加工性，而不会导致其机械性能的劣化。解决方案：铁基粉末混合物通过将铁基粉末与合金粉末，用于提高机械加工性的粉末以及润滑剂混合而获得。作为提高机械加工性的粉末，使用平均粒径为1〜60μm的硫化锰粉末和/或平均粒径为1〜60μm的氟化钙粉末。用于提高机械加工性的粉末相对于铁基粉末，合金粉末和提高机械加工性的粉末的总含量为0.1〜1.5质量％。此外，用于提高机械加工性的粉末的粒度分布与通过将与铁基粉末，合金粉末和润滑剂混合的铁基粉末混合物获得的铁基烧结体中的孔的粒度分布相似，压力压实和烧结。以这种方式，可以减少烧结体中的孔，减少对工具的间歇性冲击，延长工具的使用寿命。此外，铁基粉末的一部分或全部可以用作施加偏析防止处理的铁基粉末，其中用于合金和/或用于提高机械加工性的粉末的粉末粘附在表面上用粘合剂。版权所有（C）2007，JPO＆INPIT

23. 发明专利

JP2007138273A Method for producing high density iron-based compacted body and high strength and high density iron-based sintered body 有权
标题翻译：生产高密度铁基压实体和高强度和高密度铁基烧结体的方法
公开(公告)号：JP2007138273A
公开(公告)日：2007-06-07
申请号：JP2005337197
申请日：2005-11-22
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UENOSONO SATOSHI , NAKAMURA NAOMICHI
IPC分类号： C22C33/02 , B22F3/10 , B22F3/24 , C22C38/00 , C22C38/46
摘要： PROBLEM TO BE SOLVED: To provide a method for stably producing an iron-based compacted body having a high density and thus an iron-based sintered body having a high strength and a high density.
SOLUTION: The method comprises pre-compacting an iron-based mixed powder prepared from an iron-based metal powder and a graphite powder, or further, a lubricant, pre-sintering the resulting pre-compacted body at a temperature of higher than 1000°C and not higher than 1300°C in a nonoxidizing atmosphere under the partial pressure of nitrogen satisfying ≤30 kPa, to prepare an iron-based sintered preform having a composition containing 0.10 to 0.50 mass% of C, 0.3 mass% or less of O and 0.010 mass% or less of N, and the balance Fe with inevitable impurities and having a density of 7.2 Mg/m
3 or more, and then subjecting the preform for compacting high density iron-based powder to a high velocity compaction at a ram velocity of ≥2 m/s.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种稳定地制造高密度的铁基压实体的方法，从而提供具有高强度和高密度的铁基烧结体。解决方案：该方法包括预先压制由铁基金属粉末和石墨粉末制备的铁基混合粉末，或进一步地，在较高温度下预烧结所得预压实体的润滑剂在非氧化性气氛下，在满足≤30kPa的氮气的条件下，在1000℃以上1300℃以下，制备含有0.10〜0.50质量％的C，0.3质量％的组成的铁基烧结预成型体，或较小的O和0.010质量％以下的N，余量为Fe与不可避免的杂质，密度为7.2Mg / m 3以上，然后使该预成型件压实高密度铁 - 在高于2m / s的冲击速度下进行高速压实。版权所有（C）2007，JPO＆INPIT

24. 发明专利

JP2006037219A Method and apparatus for filling up metal powder 审中-公开
标题翻译：填充金属粉末的方法和装置
公开(公告)号：JP2006037219A
公开(公告)日：2006-02-09
申请号：JP2004334688
申请日：2004-11-18
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UENOSONO SATOSHI
IPC分类号： B22F3/035 , B30B11/00
CPC分类号： B30B15/304
摘要： PROBLEM TO BE SOLVED: To provide a method for filling up powder with which the filling density becomes uniform, regarding a method and apparatus for uniformly filling up metal powder into a cavity in a die, for example, raw material mixed powder used for powder metallurgy.
SOLUTION: When the metal powder is supplied into the cavity in a die from a supplying hole in a powder box 8, faced to an opening hole by advancing/retreating the powder box 8 holding the metal powder 4 to the opening hole part 3a of the cavity in the die, the powder box is stopped under state of matching the supplying hole in the powder box with the opening hole part of the cavity in the die, and the supply of the metal powder is performed by changing a shutter mechanism 9 composed of two pieces of screen plates relatively moved into the opening-state.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供填充密度均匀的粉末的方法，关于将金属粉末均匀地填充到模具的空腔中的方法和装置，例如使用的原料混合粉末用于粉末冶金。解决方案：当金属粉末从粉盒8中的供给孔的模具中的空腔中供给时，通过使保持金属粉末4的粉盒8前进/后退到开孔部而面向开口孔如图3a所示，粉盒在粉盒中的供给孔与模具中的空腔的开孔部匹配的状态下停止，并且通过改变快门机构来进行金属粉末的供给 9组成的两块屏板相对移动到开启状态。版权所有（C）2006，JPO＆NCIPI

25. 发明专利

JP2005307348A Iron-based powder mixture for powder metallurgy 审中-公开
标题翻译：用于粉末冶金的基于铁的粉末混合物
公开(公告)号：JP2005307348A
公开(公告)日：2005-11-04
申请号：JP2005079648
申请日：2005-03-18
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： ONO TOMOSHIGE , UNAMI SHIGERU , OZAKI YUKIKO , UENOSONO SATOSHI
IPC分类号： B22F3/02 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an iron-based powder mixture for powder metallurgy that excels in fluidity as powder, giving a green compact whose withdrawal from a metal mold is easier than in the prior art, the obtained green compact having a density stabilized and enhanced as compared with that of the prior art.
SOLUTION: The iron-based powder mixture for powder metallurgy can be produced by a process comprising adding a free lubricant to an iron-based powder and mixing them, wherein the free lubricant has a particle diameter of ≤200 μm and a crush strength, as measured with respect to particles of average diameter, of 0.2 to 2 MPa and wherein the free lubricant is contained in an amount of 0.1 to 1 mass pts. per 100 mass pts. of iron-based powder. At this time, as the free lubricant, the one obtained by being subjected to granulation by fusion spraying is preferably used.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供粉末冶金的铁基粉末混合物，其作为粉末具有优异的流动性，给出了与现有技术相比更容易从金属模具中取出的生坯，其获得的生坯具有密度与现有技术相比稳定和增强。解决方案：用于粉末冶金的铁基粉末混合物可以通过包括向铁基粉末中添加游离润滑剂并混合它们的方法制备，其中游离润滑剂的粒径为≤200μm，粉碎相对于平均直径的颗粒测量的强度为0.2至2MPa，其中游离润滑剂的含量为0.1至1质量％。每100个质量点的铁基粉末。此时，作为游离润滑剂，优选使用通过熔喷进行造粒而得到的润滑剂。版权所有（C）2006，JPO＆NCIPI

26. 发明专利

JP2005232595A Iron based powdery mixture for high strength sintered component 有权
标题翻译：用于高强度烧结组件的基于铁的粉末混合物
公开(公告)号：JP2005232595A
公开(公告)日：2005-09-02
申请号：JP2005010151
申请日：2005-01-18
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UNAMI SHIGERU , UENOSONO SATOSHI , ONO TOMOSHIGE , OZAKI YUKIKO
IPC分类号： B22F1/00 , B22F1/02 , C22C33/02 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide an iron based powdery mixture in which sintering is promoted even at relatively low sintering temperatures, and with which a sintered component having high strength can be obtained as well even if heat treatment after the sintering is obviated.
SOLUTION: The iron based powdery mixture is obtained by mixing a 0.05 to 0.6 pts. mass free lubricant to 100 pts.mass iron based powder in which Ni powder, Cu powder and graphite powder are stuck to the surface of alloy steel powder into which Ni and Mo are prealloyed with an organic binder. At least 20 mass% of the free lubricant is composed of secondary grains with a grain size of 10 to 200 μm granulated in such a manner that primary grains with a grain size of 0.10 to 80 μm is granulated. The prealloying ratios of Ni and Mo in the alloy steel powder is controlled to 0.5 to 3 mass% in Ni and >0.7 to 4 mass% in Mo. Further, the blending ratios of the Ni powder, Cu powder and graphite powder in the iron based powder are controlled to 0.5 to 5 mass% in the Ni powder, 0.5 to 3 mass% in the Cu powder, and 0.2 to 1.0 mass% in the graphite powder.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供即使在相对低的烧结温度下也促进烧结的铁基粉末混合物，并且即使在烧结后的热处理被消除也可以获得具有高强度的烧结组分。解决方案：铁基粉末混合物通过混合0.05至0.6份得到。将质量不足的润滑剂加入到100质量％的铁基粉末中，其中Ni粉末，Cu粉末和石墨粉末粘附在Ni和Mo与有机粘合剂预合金的合金钢粉末的表面上。至少20质量％的游离润滑剂由粒径为10〜200μm的二次粒子构成，粒径为0.10〜80μm的一次粒子成粒。合金钢粉末中Ni和Mo的预合金比在Ni中为0.5〜3质量％，Mo为0.7〜4质量％。此外，Ni粉末，Cu粉末和石墨粉末在铁中的配合比例 Ni粉末中的粉末为0.5〜5质量％，Cu粉末为0.5〜3质量％，石墨粉末为0.2〜1.0质量％。版权所有（C）2005，JPO＆NCIPI

27. 发明专利

JP2005179185A Magnetite-iron composite powder, production method therefor and wave absorber 有权
标题翻译：磁铁复合粉，其制造方法及波浪吸收器
公开(公告)号：JP2005179185A
公开(公告)日：2005-07-07
申请号：JP2004376199
申请日：2004-12-27
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： OZAKI YUKIKO , UENOSONO SATOSHI , NAKAMARU HIROKI , NAKAMURA YUKIKO , TAKAGI SHIGEAKI , UNAMI SHIGERU , SAITO SHINGO
IPC分类号： B09C1/02 , B09C1/08 , B22F1/00 , B22F1/02 , B22F9/22 , C01G49/06 , C01G49/08 , C02F1/70 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide fine composite iron powder suitable for use in a method of rapidly decomposing an organic halogen compound; composite magnetic iron powder which exhibits its function in a high frequency zone and is free from oxidation and heat generation even in the air; a production method therefor; and a wave absorber using the same.
SOLUTION: The magnetite-iron composite powder contains magnetite and has an average primary grain size of 0.01-10 μm, wherein the intensity ratio of X-ray diffraction of the magnetite to α-Fe is preferably 0.001-50, and the magnetite-iron composite powder preferably contains nickel. In the production method for the iron composite powder, when hematite powder having an average primary grain size of 0.01-10 μm is heated and reduced in a reducing gas, the reduction of the hematite powder is suspended and magnetite is incorporated into the powder. The iron composite powder is mixed with rubber and/or resin and molded.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供适合用于快速分解有机卤素化合物的方法的精细复合铁粉末; 复合磁铁粉末，其在高频区表现出其功能，即使在空气中也不发生氧化和发热; 一种生产方法; 和使用其的波吸收体。磁铁矿铁复合粉末含有磁铁矿，平均一次粒径为0.01〜10μm，磁铁矿与α-Fe的X射线衍射强度比优选为0.001-50，磁铁矿铁复合粉末优选含有镍。在铁复合粉末的制造方法中，当平均一次粒径为0.01〜10μm的赤铁矿粉末在还原气体中被加热还原时，悬浮赤铁矿粉末的还原，并将磁铁矿掺入粉末中。将铁复合粉末与橡胶和/或树脂混合并成型。版权所有（C）2005，JPO＆NCIPI

28. 发明专利

JP2004218041A Sintered member, and production method therefor 审中-公开
公开(公告)号：JP2004218041A
公开(公告)日：2004-08-05
申请号：JP2003009483
申请日：2003-01-17
申请人： Jfe Steel Kk , Jfeスチール株式会社 , Nissan Motor Co Ltd , 日産自動車株式会社
发明人： UNAMI SHIGERU , UENOSONO SATOSHI , MABUCHI YUTAKA , FUJIKI AKIRA , MAEKAWA YUKIHIRO , MURATA TAKASHI
IPC分类号： B22F3/10 , B22F1/00 , B22F3/02 , B22F3/24 , C22C33/02
CPC分类号： B22F1/007 , B22F1/0059 , B22F2003/023 , B22F2003/026 , B22F2998/00 , C22C33/02 , B22F1/0096 , B22F5/08 , C22C33/0228
摘要： PROBLEM TO BE SOLVED: To provide a sintered member which has excellent fatigue strength and wear resistance, and is suitably used, e.g., for a sprocket for a silent chain, and a connecting rod and a piston pin for an internal combustion engine, and to provide a production method by which the sintered member can inexpensively be produced.
SOLUTION: A powdery mixture comprising metal powder with a particle diameter of ≤75 μm, desirably, metal powder obtained by granulating the metal powder so as to be a secondary particle diameter of ≤180 μm, 0.1 to 1.0 mass% graphite powder and a 0.05 to 0.80 mass% lubricant for forming is subjected to compression forming desirably at ≥100°C, and is thereafter sintered desirably at a high temperature of ≥1,180°C.
COPYRIGHT: (C)2004,JPO&NCIPI

29. 发明专利

JP2004115847A Iron-base mixed powder for powder metallurgy 有权
公开(公告)号：JP2004115847A
公开(公告)日：2004-04-15
申请号：JP2002278584
申请日：2002-09-25
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： UENOSONO SATOSHI , OTA JUNICHI
IPC分类号： B22F9/04
摘要： PROBLEM TO BE SOLVED: To provide an iron-base mixed powder which improves machinability of a sintered compact without causing degradation in mechanical properties. SOLUTION: In a process of mixing a powder for an alloy, a powder for improving machinability and a lubricant with the iron-base powder, as the powder for improving machinability, a calcium pyrophosphate powder is contained by 0.02 to 0.40 mass% in total expressed in terms of Ca based on the total content of the iron-base powder, the powder for the alloy and the powder for improving machinability. As the calcium pyrophosphate powder, calcium β-pyrophosphate is preferably contained by ≥15 mass% in order to improve the machinability. As the powder for improving the machinability, hydroxyapatite and/or calcium fluoride can be contained in addition to calcium pyrophosphate. COPYRIGHT: (C)2004,JPO

30. 发明专利

JP2008069460A Iron-based powder mixture for powder metallurgy, and method for manufacturing the same 有权
标题翻译：用于粉末冶金的基于铁的粉末混合物及其制造方法
公开(公告)号：JP2008069460A
公开(公告)日：2008-03-27
申请号：JP2007303206
申请日：2007-11-22
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： OZAKI YUKIKO , UENOSONO SATOSHI , UNAMI SHIGERU , ONO TOMOSHIGE
IPC分类号： B22F1/02 , B22F1/00 , B22F3/02 , C22C33/02
CPC分类号： B22F1/0062 , B22F1/0059 , B22F1/0077 , B22F1/0096 , B22F2003/023 , B22F2998/00 , B22F2999/00 , C22C33/0207 , Y10T428/12049 , Y10T428/12181 , Y10T428/2998 , B22F1/02
摘要： PROBLEM TO BE SOLVED: To provide an iron-based powder mixture for powder metallurgy with no segregation of components and excellent flowability and compressibility. SOLUTION: While mixing iron-based powder and auxiliary material powder for powder metallurgy in which the surfaces of the grains are coated with an organic binder of 5 to 50 mass%, at least a part of the organic binder is melted or softened, and thereafter, cooling is performed. COPYRIGHT: (C)2008,JPO&INPIT

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