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1. 发明授权

US06610120B2 Alloyed steel powder for powder metallurgy 有权
公开(公告)号：US06610120B2
公开(公告)日：2003-08-26
申请号：US09934188
申请日：2001-08-21
申请人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga
发明人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga
IPC分类号： B22F100
CPC分类号： C22C33/0207 , B22F2999/00 , B22F1/0003 , B22F1/0096
摘要： A Mo source powder is added to and mixed with an iron-based powder containing 1.0% by mass or less of prealloyed Mn to yield a powder mixture containing 0.2 to 10.0% by mass of Mo, the resulting powder mixture is subjected to heat treatment in a reducing atmosphere to thereby yield an alloyed steel powder containing Mo as a powder partially diffused and bonded to a surface of the iron-based powder particles. The prepared alloyed steel powder for powder metallurgy has satisfactory compactability. The use of this alloyed steel powder can produce a sintered powder metal body (an intermediate material after compaction and preliminary sintering in re-compaction of sintered powder materials process) for highly strong sintered member.

2. 发明授权

US06696014B2 Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density 有权
标题翻译：铁基烧结粉末金属体及其制造方法以及高强度，高密度的铁基烧结体的制造方法
公开(公告)号：US06696014B2
公开(公告)日：2004-02-24
申请号：US10280529
申请日：2002-10-25
申请人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga , Takashi Yoshimura , Mitsumasa Iijima , Shin Koizumi , Hiroyuki Anma , Yasuo Hatai
发明人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga , Takashi Yoshimura , Mitsumasa Iijima , Shin Koizumi , Hiroyuki Anma , Yasuo Hatai
IPC分类号： B22F312
CPC分类号： C22C33/0264 , B22F3/1007 , B22F2998/10 , B22F2999/00 , C22C33/02 , B22F3/02 , B22F3/10 , C22C33/0207 , B22F1/0096
摘要： A sintered iron-based powder metal body with lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density.
摘要翻译：具有较低再压缩载荷并具有高密度的烧结铁基粉末金属体以及制造具有较小的尖锐形状和高强度和高密度的孔的铁基烧结组件的方法。

3. 发明授权

US06514307B2 Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density 有权
标题翻译：铁基烧结粉末金属体及其制造方法以及高强度，高密度的铁基烧结体的制造方法
公开(公告)号：US06514307B2
公开(公告)日：2003-02-04
申请号：US09934428
申请日：2001-08-21
申请人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga , Takashi Yoshimura , Mitsumasa Iijima , Shin Koizumi , Hiroyuki Anma , Yasuo Hatai
发明人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga , Takashi Yoshimura , Mitsumasa Iijima , Shin Koizumi , Hiroyuki Anma , Yasuo Hatai
IPC分类号： C22C3302
CPC分类号： C22C33/0264 , B22F3/1007 , B22F2998/10 , B22F2999/00 , C22C33/02 , B22F3/02 , B22F3/10 , C22C33/0207 , B22F1/0096
摘要： An sintered iron-based powder metal body with outstandingly lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density, the method comprising mixing, an iron-based metal powder containing at most about 0.05% of carbon, at most about 0.3% of oxygen, at most about 0.010% of nitrogen, with at least about 0.03% and at most about 0.5% of graphite powder and a lubricant, preliminarily compacting the mixture into a preform, the density of which is about 7.3 Mg/m3 or more, and preliminarily sintering the preform in a non-oxidizing atmosphere in which a partial pressure of nitrogen is about 30 kPa or less at a temperature of about 1000° C. or higher and about 1300° C. or lower, thereby forming a sintered iron-based powder metal body with outstandingly lower re-compacting load and having high deformability, the density of which is about 7.3 Mg/m3 or more and which contains at least about 0.10% and at most about 0.50 of carbon, at most about 0.010% of oxygen and at most about 0.010% of nitrogen, and which comprises at most about 0.02% of free carbon, and, further applying re-compaction and re-sintering and/or heat treatment thereby forming a sintered component, as well as the method alternatively comprising applying preliminary sintering in an atmosphere with no restriction of the nitrogen partial pressure and then annealing instead of the sintering step, thereby obtaining a sintered iron-based powder metal body with the nitrogen content of at most about 0.010%.
摘要翻译：一种烧结铁基粉末金属体，具有显着降低的再压实载荷并具有高密度，并且制造具有较少的尖锐形状的孔并具有高强度和高密度的铁基烧结组分的方法，该方法包括混合，含有最多约0.05％的碳，至多约0.3％的氧，至多约0.010％的氮，至少约0.03％和至多约0.5％的石墨粉末和润滑剂的铁基金属粉末，将混合物预先压实成预制件，其密度为约7.3Mg / m 3以上，并且在约10分钟的温度下在氮气分压为约30kPa以下的非氧化性气氛中预先烧结预成型体 1000℃以上约1300℃以下，从而形成烧结的铁基粉末金属体，具有显着降低的再压缩载荷，并具有高变形能力，其密度为约7.3Mg / m 3以上，其中至少约0.10％，至多约0.50碳，至多约0.010％的氧和至多约0.010％的氮，并且其包含至多约0.02％的游离碳，并且进一步应用再压实和再烧结和/或热处理，从而形成烧结组分，以及所述方法或者包括在不限制氮分压的气氛中进行初步烧结，然后退火而不是烧结步骤，由此获得烧结的铁 - 含氮量最多为0.010％的粉末金属体。

4. 发明授权

US06758882B2 Alloyed steel powder for powder metallurgy 有权
标题翻译：粉末冶金用合金钢粉末
公开(公告)号：US06758882B2
公开(公告)日：2004-07-06
申请号：US10255280
申请日：2002-09-26
申请人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga
发明人： Naomichi Nakamura , Satoshi Uenosono , Shigeru Unami , Masashi Fujinaga
IPC分类号： B22F100
CPC分类号： C22C33/0207 , B22F2999/00 , B22F1/0003 , B22F1/0096
摘要： A Mo source powder is added to and mixed with an iron-based powder containing 1.0% by mass or less of prealloyed Mn to yield a powder mixture containing 0.2 to 10.0% by mass of Mo, the resulting powder mixture is subjected to heat treatment in a reducing atmosphere to thereby yield an alloyed steel powder containing Mo as a powder partially diffused and bonded to a surface of the iron-based powder particles. The prepared alloyed steel powder for powder metallurgy has satisfactory compactability. The use of this alloyed steel powder can produce a sintered powder metal body (an intermediate material after compaction and preliminary sintering in re-compaction of sintered powder materials process) for highly strong sintered member.
摘要翻译：向含有1.0质量％以下的预合金Mn的铁基粉末中添加Mo源粉末，得到含有0.2〜10.0质量％的Mo的粉末混合物，将得到的粉末混合物进行热处理还原气氛，从而得到含有Mo的合金化钢粉，其部分扩散并结合到铁基粉末颗粒的表面。制备的粉末冶金合金钢粉末具有令人满意的压实性。使用该合金钢粉末可以制造高强度烧结体的烧结粉末金属体（压实后的中间材料，烧结粉末材料的再压制的预烧结）。

5. 发明申请

US20050039576A1 Alloy steel powder for powder metallurgy 有权
标题翻译：粉末冶金用合金钢粉末
公开(公告)号：US20050039576A1
公开(公告)日：2005-02-24
申请号：US10918887
申请日：2004-08-16
申请人： Shigeru Unami , Naomichi Nakamura , Satoshi Uenosono
发明人： Shigeru Unami , Naomichi Nakamura , Satoshi Uenosono
IPC分类号： C22C33/02 , C22C1/04
CPC分类号： C22C33/0207 , B22F2999/00 , B22F1/0003 , B22F1/0096
摘要： An alloy steel powder for powder metallurgy includes an iron-based powder containing about 0.5 mass percent or less of Mn as a prealloyed element and 0.2 to about 1.5 mass percent of Mo as a prealloyed element; and a Mo-containing alloy powder bonded on the surface of the iron-based powder by diffusion bonding. In the alloy steel powder for powder metallurgy, a Mo average content [MO]T (mass percent) satisfies formula 0.8≧[M]T—[Mo]P≧0.05, wherein the content [Mo]P is the above prealloyed Mo content (mass percent) in the iron-based powder.
摘要翻译：用于粉末冶金的合金钢粉末包括含有作为预合金元素的Mn的约0.5质量％或更少的铁基粉末和作为预合金元素的0.2至约1.5质量％的Mo; 和通过扩散接合结合在铁基粉末的表面上的含Mo合金粉末。在用于粉末冶金的合金钢粉末中，Mo平均含量[MO] T（质量百分比）满足公式0.8> = [M] T [Mo] P> = 0.05，其中[Mo] P为上述预合金铁基粉末中的Mo含量（质量百分比）。

6. 发明授权

US07347884B2 Alloy steel powder for powder metallurgy 有权
标题翻译：粉末冶金用合金钢粉末
公开(公告)号：US07347884B2
公开(公告)日：2008-03-25
申请号：US10918887
申请日：2004-08-16
申请人： Shigeru Unami , Naomichi Nakamura , Satoshi Uenosono
发明人： Shigeru Unami , Naomichi Nakamura , Satoshi Uenosono
IPC分类号： B22F3/00 , B22F1/00
CPC分类号： C22C33/0207 , B22F2999/00 , B22F1/0003 , B22F1/0096
摘要： An alloy steel powder for powder metallurgy includes an iron-based powder containing about 0.5 mass percent or less of Mn as a prealloyed element and 0.2 to about 1.5 mass percent of Mo as a prealloyed element; and a Mo-containing alloy powder bonded on the surface of the iron-based powder by diffusion bonding. In the alloy steel powder for powder metallurgy, a Mo average content [Mo]T (mass percent) satisfies formula 0.8≧[Mo]T−[Mo]P≧0.05, wherein the content [Mo]P is the above prealloyed Mo content (mass percent) in the iron-based powder.
摘要翻译：用于粉末冶金的合金钢粉末包括含有作为预合金元素的Mn的约0.5质量％或更少的铁基粉末和作为预合金元素的0.2至约1.5质量％的Mo; 和通过扩散接合结合在铁基粉末的表面上的含Mo合金粉末。在用于粉末冶金的合金钢粉末中，Mo平均含量[Mo]≤T（质量百分比）满足公式0.8> = [Mo] T P = 0.05，其中，[Mo] P
是铁基粉末中上述预合金化的Mo含量（质量％）。

7. 发明申请

US20080202651A1 Method For Manufacturing High-Density Iron-Based Compacted Body and High-Density Iron-Based Sintered Body 审中-公开
标题翻译：高密度铁基压实体和高密度铁基烧结体的制造方法
公开(公告)号：US20080202651A1
公开(公告)日：2008-08-28
申请号：US11664138
申请日：2005-11-24
申请人： Satoshi Uenosono , Naomichi Nakamura
发明人： Satoshi Uenosono , Naomichi Nakamura
IPC分类号： C21D1/26 , B22F3/12
CPC分类号： B22F3/16 , B22F2998/10 , C22C38/04 , C22C38/42 , C22C38/44 , C22C38/46 , B22F3/02 , B22F3/10
摘要： An iron-based compact having a high density and also an iron-based sintered body having a high strength and a high density are manufactured with a high productivity by pre-compacting an iron-based mixed powder prepared by mixing an iron-based metal powder and a graphite powder; pre-sintering the resulting pre-compacted iron-based mixed powder at a temperature higher than 1000° C. but not higher than 1300° C. to produce a sintered iron-based powder preform containing C: 0.10 to 0.50 mass %, O: 0.3 mass % or less, and N: 0.010 mass % or less and having a density of 7.2 Mg/m3 or more; and subjecting the sintered iron-based powder preform to high-velocity compaction at a compaction energy density of 1.8 MJ/m2 or more (1.4 MJ/m2 or more for a sintered pure-iron based powder preform).
摘要翻译：通过预先压制通过混合铁基金属粉末制备的铁基混合粉末，以高生产率制造具有高密度的铁基压块和具有高强度和高密度的铁基烧结体和石墨粉末; 在高于1000℃但不高于1300℃的温度下预烧结所得的预先压制的铁基混合粉末，以制备C：0.10至0.50质量％的烧结铁基粉末预制件，O： 0.3质量％以下，N：0.010质量％以下，密度为7.2Mg / m 3以上; 并对烧结的铁基粉末预制件以1.8MJ / m 2以上的压缩能量密度（1.4MJ / m 2以上）进行高速压实，烧结纯铁粉末预制件）。

8. 发明授权

US6090361A Method for producing silicon for use in solar cells 失效
标题翻译：生产用于太阳能电池的硅的方法
公开(公告)号：US6090361A
公开(公告)日：2000-07-18
申请号：US46172
申请日：1998-03-23
申请人： Hiroyuki Baba , Masamichi Abe , Kazuhiro Hanazawa , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Tetsuya Fujii
发明人： Hiroyuki Baba , Masamichi Abe , Kazuhiro Hanazawa , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Tetsuya Fujii
IPC分类号： C01B33/025 , C01B33/037 , C30B11/00 , C30B13/00 , C30B15/00 , C01B33/02
CPC分类号： C30B29/06 , C01B33/037 , C30B11/00 , C30B13/00 , C30B15/00
摘要： Method for producing highly purified silicon for use in solar cells by a single solidification purification, pouring silicon into a mold and gradually fractionally solidifying it while solidifying the liquid surface, followed by purifying the solidified silicon by zone melting or continuous casting using an electromagnetic mold, or by zone melting in combination with continuous casting, and optionally causing directional solidification to concentrate impurities, leaching and recycling.
摘要翻译：用于通过单次凝固纯化生产用于太阳能电池的高纯度硅的方法，将硅浇注到模具中并在固化液体表面的同时逐渐固化，然后通过使用电磁模具的区域熔融或连续铸造纯化固化的硅，或通过连续铸造的区域熔融，并且任选地引起定向凝固以浓缩杂质，浸出和再循环。

9. 发明授权

US06231826B1 Process and apparatus for refining silicon 失效
标题翻译：硅精制工艺及装置
公开(公告)号：US06231826B1
公开(公告)日：2001-05-15
申请号：US09391564
申请日：1999-09-08
申请人： Kazuhiro Hanazawa , Masamichi Abe , Hiroyuki Baba , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Fukuo Aratani
发明人： Kazuhiro Hanazawa , Masamichi Abe , Hiroyuki Baba , Naomichi Nakamura , Noriyoshi Yuge , Yasuhiko Sakaguchi , Yoshiei Kato , Fukuo Aratani
IPC分类号： C01B33037
CPC分类号： C01B33/037
摘要： Process and apparatus for refining silicon by treatment in a graphite vessel with irradiation with an electron beam while removing impurity elements by evaporation. A single graphite vessel is used, or plural graphite vessels are arranged in sequence. During treatment in successive graphite vessels, molten silicon is poured in succession from one vessel to another. Use of graphite vessels improves heat efficiency, prevents contamination and produces refined silicon containing very low contents of impurities.
摘要翻译：通过用电子束照射在石墨容器中进行处理，同时通过蒸发去除杂质元素来提纯硅的方法和装置。使用单个石墨容器，或者依次排列多个石墨容器。在连续石墨容器的处理过程中，将熔融硅从一个容器依次倒入另一个容器。使用石墨容器可提高热效率，防止污染，并生产含有非常低含量杂质的精制硅。

10. 发明授权

US08916268B2 Iron powder for dust cores 有权
标题翻译：防尘芯铁粉
公开(公告)号：US08916268B2
公开(公告)日：2014-12-23
申请号：US12733699
申请日：2008-12-11
申请人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
发明人： Takashi Kawano , Noriko Makiishi , Tatsuhiko Hiratani , Naomichi Nakamura , Yusuke Oishi , Eisuke Hoshina , Toshiya Yamaguchi , Daisuke Okamoto , Takeshi Hattori
IPC分类号： B22F1/02 , B32B15/02 , H01F1/33 , H01F1/24
CPC分类号： H01F1/33 , B22F1/02 , B22F2998/00 , H01F1/24 , Y10T428/12181 , Y10T428/2991 , Y10T428/2993 , B22F2301/35 , B22F2302/256
摘要： An iron powder for dust cores is provided which can be formed into a dust core having a high resistivity and having a low iron loss without degrading the mechanical strength. The iron powder for dust cores includes an iron powder and an oxide film on the surface thereof, wherein the oxide film is composed of a Si-based oxide in which the ratio of Si to Fe satisfies Si/Fe≧0.8 on an atomic number basis.
摘要翻译：提供了用于防尘芯的铁粉，其可以形成为具有高电阻率并具有低铁损的防尘芯，而不降低机械强度。用于防尘芯的铁粉在其表面上包括铁粉和氧化物膜，其中氧化物膜由其中Si与Fe的比率以原子数为基准满足Si /Fe≥0.8的Si基氧化物。

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