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1. 发明授权

US07670443B2 Magnetic alloy material and method of making the magnetic alloy material 有权
标题翻译：磁性合金材料及其制造方法
公开(公告)号：US07670443B2
公开(公告)日：2010-03-02
申请号：US11673729
申请日：2007-02-12
申请人： Ryosuke Kogure , Hirokazu Kanekiyo , Takeshi Nishiuchi , Satoshi Hirosawa
发明人： Ryosuke Kogure , Hirokazu Kanekiyo , Takeshi Nishiuchi , Satoshi Hirosawa
IPC分类号： H01F1/053
CPC分类号： H01F1/015 , H01F1/0571
摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMc where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %≦a≦10 at %, 4.7 at %≦b≦18 at % and 0 at %≦c≦9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.
摘要翻译：制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体，得到一种由Fe100-ab-cREaAbTMc表示的快速固化的合金，其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb中的至少一种稀土元素， Dy，Ho，Er和Tm，并且包括至少约90原子％的La; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5 at％＆nlE; a＆nlE; 10 at％，4.7 at％＆nlE; b＆nlE; 18 at％和0 at％＆nlE; c＆nlE; 9 at％; 并在至少约70vol％的快速凝固合金中生产具有NaZn13型晶体结构的复合相。

2. 发明申请

US20090129966A1 IRON-BASED RARE-EARTH-CONTAINING NANOCOMPOSITE MAGNET AND PROCESS FOR PRODUCING THE SAME 审中-公开
标题翻译：基于铁的稀土纳米复合磁体及其制造方法
公开(公告)号：US20090129966A1
公开(公告)日：2009-05-21
申请号：US11571071
申请日：2006-03-22
申请人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
发明人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
IPC分类号： B22F1/00 , H01F1/01 , C22F1/16 , C21D1/00 , C22F1/10
CPC分类号： H01F1/0578 , B22F9/008 , B22F2009/048 , B22F2998/10 , B82Y25/00 , C21D8/1211 , C21D8/1272 , C21D2201/03 , C22C1/0491 , C22C33/0257 , C22C38/005 , C22C38/12 , C22C38/14 , C22C2200/04 , C22C2202/02 , H01F1/0579 , H01F1/058 , B22F9/007 , B22F9/04 , B22F1/0059 , B22F3/02
摘要： An iron-based rare-earth nanocomposite magnet according to the present invention includes an Nd2Fe14B phase and an α-Fe phase and has a composition represented by the compositional formula: T100-x-y-z-n(B1-qCq)xRyTizMn, where T is at least one transition metal element selected from the group consisting of Fe, Co and Ni and always including Fe, R is at least one rare-earth element including substantially no La or Ce, and M is at least one metal element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, and the mole fractions x, y, z, n and q satisfy the inequalities of: 4 at %≦x≦10 at %, 6 at %≦y≦10 at %, 0.05 at %≦z≦5 at %, 0 at %≦n≦10 at %, and 0.05≦q≦0.5, respectively. The magnet includes 5 vol % to 60 vol % of α-Fe phase with an average crystal grain size of 1 nm to 50 nm and 40 vol % to 90 vol % of Nd2Fe14B phase with an average crystal grain size of 5 nm to 100 nm. A non-magnetic phase including at least Ti and C (carbon) is present on the grain boundary between the α-Fe and Nd2Fe12B phases.
摘要翻译：根据本发明的铁基稀土纳米复合磁体包括Nd 2 Fe 14 B相和α-Fe相，并且具有由组成式T100-xyzn（B1-qCq）xRyTizMn表示的组成，其中T是至少一个选自Fe，Co和Ni的过渡金属元素，并且总是包括Fe，R是至少一种稀土元素，其基本上不含La或Ce，M是至少一种选自Al ，Si，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb，摩尔分数x，y，z，n和q满足不等式：4 at％<= x <= 10 at％，6 at％<= y <= 10 at％，0.05 at％<= z <= 5 at％，0 at％<= n <= 10 at％，0.05 <= q <= 0.5。该磁体包括5体积％至60体积％的α-Fe相，平均晶粒尺寸为1nm至50nm，40体积％至90体积％的平均晶粒尺寸为5nm至100nm的Nd 2 Fe 14 B相。在α-Fe和Nd2Fe12B相之间的晶界处存在至少包含Ti和C（碳）的非磁性相。

3. 发明申请

US20090032147A1 R-Fe-B MICROCRYSTALLINE HIGH-DENSITY MAGNET AND PROCESS FOR PRODUCTION THEREOF 有权
标题翻译： R-Fe-B微晶高密度磁铁及其生产工艺
公开(公告)号：US20090032147A1
公开(公告)日：2009-02-05
申请号：US12254967
申请日：2008-10-21
申请人： Noriyuki NOZAWA , Takeshi NISHIUCHI , Satoshi HIROSAWA , Tomohito MAKI
发明人： Noriyuki NOZAWA , Takeshi NISHIUCHI , Satoshi HIROSAWA , Tomohito MAKI
IPC分类号： H01F1/08 , C22C1/04 , B22F3/11 , B22F3/12
CPC分类号： H01F41/0273 , B22F3/11 , B22F2003/248 , B22F2998/10 , C22C38/005 , C22C2202/02 , H01F1/0573 , H01F1/0576 , H01F1/0577 , H01F1/0578 , H01F41/0293 , B22F3/02 , B22F3/24
摘要： An R—Fe—B based rare-earth alloy powder with a mean particle size of less than about 20 μm is provided and compacted to make a powder compact. Next, the powder compact is subjected to a heat treatment at a temperature of about 550° C. to less than about 1,000° C. within hydrogen gas, thereby producing hydrogenation and disproportionation reactions (HD processes). Then, the powder compact is subjected to another heat treatment at a temperature of about 550° C. to less than about 1,000° C. within either a vacuum or an inert atmosphere, thereby producing desorption and recombination reactions and obtaining a porous material including fine crystal grains, of which the density is about 60% to about 90% of their true density and which have an average crystal grain size of about 0.01 μm to about 2 μm (DR processes). Thereafter, the porous material is subjected to yet another heat treatment at a temperature of about 750° C. to less than about 1,000° C. within either the vacuum or the inert atmosphere, thereby further increasing its density to about 93% or more of their true density and making an R—Fe—B based microcrystalline high-density magnet.
摘要翻译：提供平均粒径小于约20μm的R-Fe-B系稀土合金粉末并压实成粉末压块。接着，在氢气中，在约550℃至小于约1000℃的温度下对粉体进行热处理，由此进行氢化和歧化反应（HD工艺）。然后，在真空或惰性气氛中，将粉末压块在约550℃至小于约1000℃的温度下进行另外的热处理，从而产生解吸和重组反应，并获得包括精细的多孔材料晶粒，其密度为其真实密度的约60％至约90％，并且其平均晶粒尺寸为约0.01μm至约2μm（DR工艺）。此后，多孔材料在真空或惰性气氛中在约750℃至小于约1000℃的温度下进行另外的热处理，从而进一步将其密度提高到约93％以上它们的真实密度并制成R-Fe-B基微晶高密度磁体。

4. 发明授权

US07261781B2 Nanocomposite magnet 有权
标题翻译：纳米复合磁体
公开(公告)号：US07261781B2
公开(公告)日：2007-08-28
申请号：US10432862
申请日：2002-11-19
申请人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
发明人： Hirokazu Kanekiyo , Toshio Miyoshi , Satoshi Hirosawa
IPC分类号： H01F1/057 , H01F1/058
CPC分类号： B82Y25/00 , B22F2998/00 , B22F2998/10 , C22C33/003 , C22C38/002 , C22C38/005 , C22C38/14 , C22C45/02 , C22C2202/02 , H01F1/0579 , H01F1/058 , C22C1/0441 , B22F9/008 , B22F9/04 , B22F1/0085
摘要： A nanocomposite magnet has a composition represented by (Fe1-mTm)100-x-y-z-nQxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth element that always includes at least one of Nd and Pr and optionally includes Dy and/or Tb, and M is at least one element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. The mole fractions x, y, z, m and n satisfy 10 at %
摘要翻译：纳米复合磁体具有由（Fe 1-m M m）= 100-xy z n Q Q x R R 其中T是Co和Ni中的至少一种，Q是B和C中的至少一个，R是至少一种稀土元素，其总是包括Nd和Pr中的至少一种，并且任选地包括Dy和/或Tb，M是选自Al，Si，V，Cr，Mn，Cu， Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb。摩尔分数x，y，z，m和n满足10at％

5. 发明授权

US07186303B2 Magnetic alloy material and method of making the magnetic alloy material 有权
标题翻译：磁性合金材料及其制造方法
公开(公告)号：US07186303B2
公开(公告)日：2007-03-06
申请号：US10642276
申请日：2003-08-18
申请人： Ryosuke Kogure , Hirokazu Kanekiyo , Takeshi Nishiuchi , Satoshi Hirosawa
发明人： Ryosuke Kogure , Hirokazu Kanekiyo , Takeshi Nishiuchi , Satoshi Hirosawa
IPC分类号： H01F1/055
CPC分类号： H01F1/015 , H01F1/0571
摘要： A method of making a magnetic alloy material includes the steps of: preparing a melt of an alloy material having a predetermined composition; rapidly cooling and solidifying the melt to obtain a rapidly solidified alloy represented by: Fe100-a-b-cREaAbTMc where RE is at least one rare-earth element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er and Tm and including at least about 90 at % of La; A is at least one element selected from Al, Si, Ga, Ge and Sn; TM is at least one transition metal element selected from Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn; and 5 at %≦a≦10 at %, 4.7 at %≦b≦18 at % and 0 at %≦c≦9 at %; and producing a compound phase having an NaZn13-type crystal structure in at least about 70 vol % of the rapidly solidified alloy.
摘要翻译：制造磁性合金材料的方法包括以下步骤：制备具有预定组成的合金材料的熔体; 快速冷却和固化熔体以获得由以下物质表示的快速固化的合金：Fe / SUB>其中RE是选自La，Ce，Pr，Nd，Pm，Sm，Eu，Gd，Tb，Dy，Ho，Er和Tm中的至少一种稀土元素，并且包括至少约90at％的La ; A是选自Al，Si，Ga，Ge和Sn中的至少一种元素; TM是选自Sc，Ti，V，Cr，Mn，Co，Ni，Cu和Zn中的至少一种过渡金属元素; 和5原子％<= a <= 10原子％，4.7原子％<= b <= 18原子％和0原子％<= c <= 9原子％并在至少约70vol％的快速凝固合金中生产具有NaZn 13 N型晶体结构的化合物相。

6. 发明授权

US07004228B2 Process for producing, through strip casting, raw alloy for nanocomposite type permanent magnet 有权
公开(公告)号：US07004228B2
公开(公告)日：2006-02-28
申请号：US10381412
申请日：2001-09-25
申请人： Ryo Murakami , Hirokazu Kanekiyo , Satoshi Hirosawa
发明人： Ryo Murakami , Hirokazu Kanekiyo , Satoshi Hirosawa
IPC分类号： B22D11/00 , H01F1/057
CPC分类号： C22C45/02 , B22D11/0611 , B82Y25/00 , C21D2201/03 , H01F1/0571 , H01F1/0579 , H01F1/058
摘要： To make a raw alloy, consisting mostly of amorphous structure, highly productively and at a reduced cost for a nanocomposite magnet, a molten alloy represented by Fe100-x-y-zRxQyMz (where R is at least one element selected from Pr, Nd, Dy and Tb; Q is B and/or C; M is at least one element selected from Co, Al, Si, Ti, V, Cr, Mn, Ni, Cu, Ga, Zr, Nb, Mo, Ag, Pt, Au and Pb; and 1 at %≦x

7. 发明授权

US06471786B1 Method for preparing nanocomposite magnet powder and method for producing nanocomposite magnet 有权
标题翻译：制备纳米复合磁体粉末的方法和制备纳米复合磁体的方法
公开(公告)号：US06471786B1
公开(公告)日：2002-10-29
申请号：US09662750
申请日：2000-09-15
申请人： Yasutaka Shigemoto , Satoshi Hirosawa , Hirokazu Kanekiyo
发明人： Yasutaka Shigemoto , Satoshi Hirosawa , Hirokazu Kanekiyo
IPC分类号： H01F1057
CPC分类号： B82Y25/00 , B22F1/0044 , B22F9/007 , C22C1/0441 , H01F1/0579 , Y10S977/773 , Y10S977/777 , Y10S977/893
摘要： The inventive method for preparing nanocomposite magnet powder includes the step of preparing material alloy powder for a nanocomposite magnet represented by a general formula Fe100−x−y−z−uRxByCozMu where R is a rare-earth element of which 90-100 atomic percent is Pr and/or Nd while 0-10 atomic percent is another lanthanoid and/or Y, and the molar fractions x, y, z and u meet the inequalities of 2≦x≦6, 16≦y≦20, 0.2≦z≦7 and 0.01≦u≦7, respectively. The powder includes a metastable phase and an amorphous structure existing in a metal structure. Heat treatment is performed for the material alloy powder to crystallize Fe3B and Fe—R—B compounds from the amorphous structure. An integral value of the difference between a temperature-time curve represented by the temperature of the material alloy powder as a function of the heat treatment time during the heat treatment and a reference temperature-time curve is in a range from 10° C.·sec to 10,000° C.·sec, the reference temperature-time curve being obtained when heat treatment similar to the above heat treatment is performed for an equivalent amount of alloy that has the same composition as the material alloy but does not include the amorphous structure.
摘要翻译：制备纳米复合磁体粉末的本发明的方法包括制备由通式Fe100-xyz-uRxByCozMu表示的纳米复合磁体的材料合金粉末的步骤，其中R是稀土元素，其中90-100原子％为Pr和/或 Nd，而0-10原子％是另一种镧系元素和/或Y，并且摩尔分数x，y，z和u满足不等式2 <= x <= 6，16 <= y <= 20，0.2 <= z <= 7和0.01 <= u <= 7。粉末包括存在于金属结构中的亚稳相和无定形结构。对材料合金粉末进行热处理，以使非晶结构中的Fe 3 B和Fe-R-B化合物结晶。以材料合金粉末的温度表示的温度 - 时间曲线与热处理期间的热处理时间的函数和基准温度 - 时间曲线之间的差的积分值在10℃的范围内。秒至10,000℃...秒，对于与材料合金具有相同组成但不包括无定形结构的等效量的合金进行与上述热处理相似的热处理时获得的参考温度 - 时间曲线。

8. 发明授权

US06287391B1 Method of producing laminated permanent magnet 有权
标题翻译：叠层永久磁铁的制造方法
公开(公告)号：US06287391B1
公开(公告)日：2001-09-11
申请号：US09242826
申请日：1999-02-24
申请人： Hirokazu Kanekiyo , Satoshi Hirosawa
发明人： Hirokazu Kanekiyo , Satoshi Hirosawa
IPC分类号： H01F1057
CPC分类号： H01F41/0266 , H01F1/0571 , H01F1/0575 , H01F1/0576 , H01F1/058 , H01F41/028
摘要： A method for manufacturing a permanent magnet by fabricating rapidly cooled alloy thin strip of amorphous composition which has good tenacity, simple working properties and an average thickness of 10 &mgr;m˜200 &mgr;m, from a molten alloy of a specific composition containing 6 at % or less of rare-earth element and 15 at %˜30 at % of boron, by means of specific rapid cooling conditions, and then subjecting this rapidly cooled alloy thin strip, after cutting or punching to a prescribed shape, to crystallization heat treatment such that the average crystal grain size thereof becomes 10 nm˜50 nm, and by layering together two or more of these thin permanent magnets and bonding and uniting the layered thin strips by means of an inorganic adhesive material or a resin, it is possible readily to provide a high-performance layered permanent magnet having a desired thickness and a prescribed shape, without using a method involving crushing and bonded magnet forming processes and without needing to carry out a cutting process after manufacture.
摘要翻译：一种永久磁铁的制造方法，其特征在于，由含有6原子％以下的特定组成的熔融合金制成快速冷却的无定形组合物的合金薄带，其具有良好的韧性，简单的加工性能，平均厚度为10〜200μm 的稀土元素和15at％〜30at％的硼，通过特定的快速冷却条件，然后将该快速冷却的合金薄带在切割或冲压成规定形状之后进行结晶热处理，使得其平均晶粒尺寸为10nm〜50nm，通过将这些薄永久磁铁中的2个以上并且通过无机粘合剂材料或树脂粘结并结合层叠的薄带而将两个或更多个层叠在一起，可以容易地提供具有期望厚度和规定形状的高性能分层永磁体，不使用涉及破碎和粘结磁体形成过程的方法，并且不需要汽车制造后出现切割过程。

9. 发明授权

US5425818A Rare earth-iron-nitrogen system permanent magnet and process for producing the same 失效
标题翻译：稀土 - 铁氮系统永磁体及其制造方法
公开(公告)号：US5425818A
公开(公告)日：1995-06-20
申请号：US158564
申请日：1993-11-29
申请人： Satoshi Hirosawa , Takashi Ikegami , Ken Makita , Tsutomu Mashimo
发明人： Satoshi Hirosawa , Takashi Ikegami , Ken Makita , Tsutomu Mashimo
IPC分类号： H01F1/059
CPC分类号： H01F1/0593
摘要： A densified high performance rare earth-iron-nitrogen permanent magnet obtained from a powder of a Th.sub.2 Zn.sub.17 compound containing nitrogen at interlattice sites, without using autogeneous sintering and yet preventing decomposition and/or denitrification from occurring. The process for producing the same need not necessarily use a binder, and it comprises compaction molding, or charging while applying a magnetic field, a powder of a nitrogen intrusion T--R--N compound having a specified composition and a Th.sub.2 Zn.sub.17 crystal structure, and applying thereto shock compression at a drive pressure of from 10 to 25 GPa as reduced to an equivalent drive pressure in an iron capsule.
摘要翻译：一种致密化的高性能稀土 - 铁 - 氮永磁体，其由在晶间位置含有氮的Th2Zn17化合物的粉末获得，而不使用自发烧结，并且防止发生分解和/或反硝化。其制造方法不一定使用粘合剂，它包括压实成型或施加磁场充电，具有特定组成的氮侵入TRN化合物粉末和Th2Zn17晶体结构，并施加于其上冲击压缩在10至25GPa的驱动压力下降低到铁胶囊中的等效驱动压力。

10. 发明授权

US09418786B2 R—Fe—B porous magnet and method for producing the same 有权
标题翻译： R-Fe-B多孔磁体及其制造方法
公开(公告)号：US09418786B2
公开(公告)日：2016-08-16
申请号：US13586917
申请日：2012-08-16
申请人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
发明人： Takeshi Nishiuchi , Noriyuki Nozawa , Satoshi Hirosawa , Tomohito Maki , Katsunori Bekki
IPC分类号： H01F1/057 , H01F41/02
CPC分类号： H01F1/057 , H01F1/0573 , H01F1/0576 , H01F1/0578 , H01F1/0579 , H01F41/028 , Y10T428/12153
摘要： An R—Fe—B based porous magnet according to the present invention has an aggregate structure of Nd2Fe14B type crystalline phases with an average grain size of 0.1 μm to 1 μm. At least a portion of the magnet is porous and has micropores with a major axis of 1 μm to 20 μm.
摘要翻译：根据本发明的R-Fe-B系多孔磁体具有平均粒径为0.1μm〜1μm的Nd2Fe14B型结晶相的集合体。磁体的至少一部分是多孔的并且具有长轴为1μm至20μm的微孔。

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