专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5908513A Cast alloy used for production of rare earth magnet and method for producing cast alloy and magnet 失效
标题翻译：用于生产稀土磁体的铸造合金和用于生产铸造合金和磁体的方法
公开(公告)号：US5908513A
公开(公告)日：1999-06-01
申请号：US838784
申请日：1997-04-10
申请人： Shiro Sasaki , Hiroshi Hasegawa , Yoichi Hirose
发明人： Shiro Sasaki , Hiroshi Hasegawa , Yoichi Hirose
IPC分类号： C22C1/04 , C22C28/00 , H01F1/057
CPC分类号： H01F1/057 , C22C1/0441 , C22C28/00 , H01F1/0571 , H01F1/0577 , B22F2009/041 , B22F2998/00 , B22F2998/10
摘要： The magnetic properties of rare earth magnet are improved by means of forming a novel structure of the cast alloy used for the production of a rare earth magnet, which contains from 27 to 34% by weight of at least one rare earth element (R) including yttrium, from 07 to 1.4% by weight of boron, and the balance being essentially iron and, occasionally any other transition element, and comprises an R.sub.2 T.sub.14 B phase, an R-rich phase and optionally at least one ternary phase except for the R.sub.2 T.sub.14 B phase and the R-rich phase. The novel structure is that the volume fraction (V) in percentage of said R.sub.2 T.sub.14 B phase and said at least one ternary phase is more than 138-1.6r (with the proviso that r is the content of R), the average grain size of the R.sub.2 T.sub.14 B phases is from 10 to 100 .mu.m and, further, the average spacing between the adjacent R-rich phases is from 3 to 15 .mu.m. The novel structure can be formed by by means of feeding alloy melt onto a rotary casting roll, cooling in a temperature range of from melting point to 1000.degree. C. at a cooling rate of 300.degree. C. per second or more, and further cooling in a temperature range of from 800 to 600.degree. C. at a cooling rate of 1.degree. C./second or less.
摘要翻译：通过形成用于制备稀土磁体的铸造合金的新型结构，稀土类磁体的磁特性得到改善，该稀土类磁铁含有27〜34重量％的至少一种稀土元素（R），包括钇，从07至1.4重量％的硼，余量基本上为铁，偶尔为任何其它过渡元素，并且包含R2T14B相，富R相和任选的至少一个三元相，除了R2T14B相和富R相。新结构是所述R2T14B相和所述至少一个三元相的百分比的体积分数（V）大于138-1.6r（条件是r是R的含量），平均粒径 R2T14B相为10〜100μm，相邻的富R相之间的平均间隔为3〜15μm。该新型结构可以通过将合金熔体供给到旋转铸辊上，以300℃/秒或更高的冷却速度在熔点为1000℃的温度范围内冷却，并进一步冷却在800〜600℃的温度范围内，以1℃/秒以下的冷却速度。

2. 发明授权

US5725042A Method for producing hydrogen-absorbing alloy 失效
标题翻译：吸收合金的制造方法
公开(公告)号：US5725042A
公开(公告)日：1998-03-10
申请号：US773709
申请日：1996-12-24
申请人： Yoichi Hirose , Shiro Sasaki , Hiroshi Hasegawa , Uremu Hosono , Masahide Utsunomiya
发明人： Yoichi Hirose , Shiro Sasaki , Hiroshi Hasegawa , Uremu Hosono , Masahide Utsunomiya
IPC分类号： C22F1/10 , B22D13/02 , B22D25/04 , C01B3/00 , C22C1/00 , C22C19/00 , C22C19/03 , H01M4/24 , H01M4/38 , B22D13/12
CPC分类号： B22D13/023 , C01B3/0057 , H01M4/242 , H01M4/383 , Y02E60/327 , Y02P70/54 , Y10S420/90
摘要： The segregation in the hydrogen-absorbing alloy is decreased by a centrifugal casting which is devised in the present invention so that: a melt fed to the bottom portion of a cylindrical rotary mold solidifies during one rotation of the mold; and, the average depositing speed of melt is from approximately 0.005 to 0.1 cm/second.
摘要翻译：通过在本发明中设计的离心铸造，吸收合金中的偏析减少，使得：在模具的一次旋转期间，供给到圆筒形旋转模具的底部的熔体熔融; 并且熔体的平均沉积速度为约0.005至0.1cm /秒。

3. 发明授权

US6045629A Alloy used for production of a rare-earth magnet and method for producing the same 失效
标题翻译：用于生产稀土磁体的合金及其制造方法
公开(公告)号：US6045629A
公开(公告)日：2000-04-04
申请号：US18050
申请日：1998-02-03
申请人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
发明人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
IPC分类号： B22D13/02 , B22D13/10 , B22F1/00 , C22C1/04 , C22C33/02 , C22C38/00 , H01F1/053 , H01F1/057 , H01F1/055
CPC分类号： C22C1/0441 , H01F1/057 , H01F1/0571 , B22F2009/041 , B22F2998/10 , B22F2999/00
摘要： An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability.The alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, 1% or less of B, and the balance being Fe, or (b) from 35 to 60% of Nd, Dy and/or Pr, 1% or less of B, and at least one element selected from the group consisting of 35% by weight or less of Co, 4% by weight or less of Cu, 3% by weight or less of Al and 3% by weight or less of Ga, and the balance being Fe. The total volume fraction of R.sub.2 Fe.sub.17 and R.sub.2 Fe.sub.14 B phases (Fe may be replaced with Cu, Co, Al or Ga) is 25% or more in the alloy. The average size of each of the R.sub.2 Fe.sub.17 and R.sub.2 Fe.sub.14 B phases is 20 .mu.m or less. The alloy can be produced by a centrifugal casting at an average accumulating rate of melt at 0.1 cm/second or less.
摘要翻译：提供了用于生产稀土类磁体合金的合金，特别是双合金方法中的边界相合金，以提高粉碎性。该合金由（a）35〜60％的Nd，Dy和/或Pr，1％以下的B，余量为Fe，（b）35〜60％的Nd，Dy和/ Pr，1％以下的B，以及选自Co，35重量％以下的Co，4重量％以下的Cu，3重量％以下的Al和3重量％以下的至少一种元素，重量或更少的Ga，余量为Fe。在合金中，R2Fe17和R2Fe14B相（Fe可以用Cu，Co，Al或Ga代替）的总体积分数为25％以上。 R2Fe17和R2Fe14B相的平均尺寸为20μm以下。该合金可以以0.1cm /秒以下的熔融物的平均累积速度通过离心铸造来制造。

4. 发明授权

US5963774A Method for producing cast alloy and magnet 失效
标题翻译：铸造合金和磁铁的生产方法
公开(公告)号：US5963774A
公开(公告)日：1999-10-05
申请号：US65564
申请日：1998-04-24
申请人： Shiro Sasaki , Hiroshi Hasegawa , Yoichi Hirose
发明人： Shiro Sasaki , Hiroshi Hasegawa , Yoichi Hirose
IPC分类号： C22C1/04 , C22C28/00 , H01F1/057 , B22F3/12
CPC分类号： H01F1/057 , C22C1/0441 , C22C28/00 , H01F1/0571 , H01F1/0577 , B22F2009/041 , B22F2998/00 , B22F2998/10
摘要： The magnetic properties of rare earth magnet are improved by means of forming a novel structure of the cast alloy used for the production of a rare earth magnet, which contains from 27 to 34% by weight of at least one rare earth element (R) including yttrium, from 0.7 to 1.4% by weight of boron, and the balance being essentially iron and, occasionally any other transition element, and comprises an R.sub.2 T.sub.14 B phase, an R-rich phase and optionally at least one ternary phase except for the R.sub.2 T.sub.14 B phase and the R-rich phase. The novel structure is that the volume fraction (V) in percentage of said R.sub.2 T.sub.14 B phase and said at least one ternary phase is more than 138-1.6r (with the proviso that r is the content of R), the average grain size of the R.sub.2 T.sub.14 B phases is from 10 to 100 .mu.m and, further, the average spacing between the adjacent R-rich phases is from 3 to 15 .mu.m. The novel structure can be formed by by means of feeding alloy melt onto a rotary casting roll, cooling in a temperature range of from melting point to 1000.degree. C. at a cooling rate of 300.degree. C. per second or more, and further cooling in a temperature range of from 800 to 600.degree. C. at a cooling rate of 1.degree. C./second or less.
摘要翻译：通过形成用于制备稀土磁体的铸造合金的新型结构，稀土类磁体的磁特性得到改善，该稀土类磁铁含有27〜34重量％的至少一种稀土元素（R），包括钇，0.7至1.4重量％的硼，余量基本上为铁，偶尔为任何其它过渡元素，并且包括R2T14B相，富R相和任选的至少一个三元相，除了R2T14B相和富R相。新结构是所述R2T14B相和所述至少一个三元相的百分比的体积分数（V）大于138-1.6r（条件是r是R的含量），平均粒径 R2T14B相为10〜100μm，相邻的富R相之间的平均间隔为3〜15μm。该新型结构可以通过将合金熔体供给到旋转铸辊上，以300℃/秒或更高的冷却速度在熔点为1000℃的温度范围内冷却，并进一步冷却在800〜600℃的温度范围内，以1℃/秒以下的冷却速度。

5. 发明申请

US20060033247A1 Refractory material for casting a rare-earth alloy and its production method as well as method for casting the rare-earth alloys 审中-公开
$Refractory material for casting a rare-earth alloy and its production method as well as method for casting the rare-earth alloys$
标题翻译：用于铸造稀土合金的耐火材料及其制备方法以及铸造稀土合金的方法
公开(公告)号：US20060033247A1
公开(公告)日：2006-02-16
申请号：US11201296
申请日：2005-08-11
申请人： Hiroshi Hasegawa , Nobuhiko Kawamura , Shiro Sasaki , Yoichi Hirose
发明人： Hiroshi Hasegawa , Nobuhiko Kawamura , Shiro Sasaki , Yoichi Hirose
IPC分类号： C21B7/04
CPC分类号： F27B5/04 , B22D13/102 , B22D41/02 , C04B35/10 , C04B35/48 , C21C5/44 , F27B5/13 , F27D3/145
摘要： Rare-earth alloy is cast into a sheet (6) or the like by using a tundish (3, 13). The refractory material of the tundish used for casting does not necessitate preheating for improving the flowability of the melt (2). The refractory material used essentially consists of 70 wt % or more of Al2O3 and 30 wt % or less of SiO2, or 70 wt % or more of ZrO2 and 30 wt % or less of one or more of Y2O3, Ce2O3, CaO, MgO, Al2O3, TiO2 and SiO2. The refractory material has 1 g/cm3 or less of bulk density, has 0.5 kcal/(mh° C.) or less of thermal conductivity in the temperature range of from 1200 to 1400° C., and has 0.5 wt % or less of ratio of ignition weight-loss under the heating condition of 1400° C. for 1 hour.
摘要翻译：通过使用中间包（3,13）将稀土合金铸造成板（6）等。用于铸造的中间包的耐火材料不需要预热以改善熔体（2）的流动性。使用的耐火材料基本上由70重量％以上的Al 2 O 3 3和30重量％以下的SiO 2或70 重量％以上的ZrO 2 2和30重量％以下的Y 2 O 3，Ce 2， CaO，MgO，Al 2 O 3，TiO 2和SiO 2， 2 。耐火材料具有1g / cm 3或更小的堆积密度，在1200至1400℃的温度范围内具有0.5kcal /（mh℃）或更低的热导率，并且在1400℃的加热条件下具有0.5重量％以下的点火失重比率1小时。

6. 发明授权

US06328825B1 Alloy used for production of a rare-earth magnet and method for producing the same 有权
标题翻译：用于生产稀土磁体的合金及其制造方法
公开(公告)号：US06328825B1
公开(公告)日：2001-12-11
申请号：US09314164
申请日：1999-05-19
申请人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
发明人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
IPC分类号： B22D1300
CPC分类号： H01F1/0571 , H01F1/0551
摘要： An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability. The Alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, and the balance being Fe, or (b) from 35 to 60% of Nd, Dy and/or Pr, and at least one element selected from the group consisting of 35% by weight or less of Co, 4% by weight or less of Cu, 3% by weight or less of Al and 3% by weight or less of Ga, and the balance being Fe. The volume fraction of R2Fe17 phase (Fe may be replaced with Cu, Co, Al or Ga) is 25% or more in the alloy and the average size of an R2Fe17 phase is 20 &mgr;m or less. The alloy can be produced by a centrifugal casting at an average accumulating rate of melt at 0.1 cm/second or less.
摘要翻译：提供了用于生产稀土类磁体合金的合金，特别是双合金方法中的边界相合金，以提高粉碎性。该合金由（a）35〜60％的Nd，Dy和/或Pr，余量为Fe，或（b）35〜60％的Nd，Dy和/或Pr，以及至少一种元素选自Co占35重量％或更少，Cu为4重量％以下，Al为3重量％以下，Ga为3重量％以下，余量为Fe。在合金中，R2Fe17相（Fe可以被Cu，Co，Al或Ga代替）的体积分数为25％以上，R2Fe17相的平均粒径为20μm以下。该合金可以以0.1cm /秒以下的熔融物的平均累积速度通过离心铸造来制造。

7. 发明授权

US5948179A Alloy used for production of a rare-earth magnet and method for producing the same 失效
标题翻译：用于生产稀土磁体的合金及其制造方法
公开(公告)号：US5948179A
公开(公告)日：1999-09-07
申请号：US968005
申请日：1997-11-12
申请人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
发明人： Hiroshi Hasegawa , Shiro Sasaki , Yoichi Hirose , Shinya Fujito , Koichi Yajima
IPC分类号： B22D13/02 , B22D13/10 , C22C38/00 , H01F1/055 , H01F1/057 , H01F1/06
CPC分类号： H01F1/0551 , H01F1/055 , H01F1/0571
摘要： An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability.The Alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, and the balance being Fe, or (b) from 35 to 60% of Nd, Dy and/or Pr, and at least one element selected from the group consisting of 35% by weight or less of Co, 4% by weight or less of Cu, 3% by weight or less of Al and 3% by weight or less of Ga, and the balance being Fe. The volume fraction of R.sub.2 Fe.sub.17 phase (Fe may be replaced with Cu, Co, Al or Ga) is 25% or more in the alloy and the average size of an R.sub.2 Fe.sub.17 phase is 20 .mu.m or less. The alloy can be produced by a centrifugal casting at an average accumulating rate of melt at 0.1 cm/second or less.
摘要翻译：提供了用于生产稀土类磁体合金的合金，特别是双合金方法中的边界相合金，以提高粉碎性。该合金由（a）35〜60％的Nd，Dy和/或Pr，余量为Fe，或（b）35〜60％的Nd，Dy和/或Pr，以及至少一种元素选自Co占35重量％或更少，Cu为4重量％以下，Al为3重量％以下，Ga为3重量％以下，余量为Fe。在合金中，R2Fe17相的体积分数（Fe可以被Cu，Co，Al或Ga代替）为25％以上，R2Fe17相的平均粒径为20μm以下。该合金可以以0.1cm /秒以下的熔融物的平均累积速度通过离心铸造来制造。

8. 发明申请

US20070095438A1 R-T-B type alloy, production method of R-T-B type alloy flake, fine powder for R-T-B type rare earth permanent magnet, and R-T-B type rare earth permanent magnet 有权
标题翻译： R-T-B型合金，R-T-B型合金薄片的生产方法，R-T-B型稀土永磁体的细粉和R-T-B型稀土永磁体
公开(公告)号：US20070095438A1
公开(公告)日：2007-05-03
申请号：US11589818
申请日：2006-10-31
申请人： Shiro Sasaki , Hiroshi Hasegawa , Kenichiro Nakajima
发明人： Shiro Sasaki , Hiroshi Hasegawa , Kenichiro Nakajima
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , B22F9/10 , B22F2009/044 , B22F2998/10 , B22F2999/00 , C22C1/0491 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16 , C22C2202/02 , H01F1/0573 , H01F41/0273 , B22F1/0055 , B22F9/023 , B22F9/04
摘要： An R-T-B type alloy (wherein R is at least one member selected from rare earth elements, T is a transition metal including Fe, and B includes boron) which is a raw material for use in a rare earth-based permanent magnet, wherein the volume percentage of the region containing an R2T17 phase having an average grain diameter of 3 μm or less in the short axis direction is from 0.5 to 10%.
摘要翻译： RTB型合金（其中R为选自稀土元素中的至少一种，T为包含Fe的过渡金属，B包括硼），其为稀土类永久磁铁中使用的原料，其中体积在短轴方向上平均粒径为3μm以下的R 2 R 23相的区域的百分比为0.5〜10％。

9. 发明申请

US20050098239A1 R-T-B based permanent magnet material alloy and R-T-B based permanent magnet 审中-公开
标题翻译： R-T-B型永磁材料合金和R-T-B型永磁体
公开(公告)号：US20050098239A1
公开(公告)日：2005-05-12
申请号：US10958653
申请日：2004-10-06
申请人： Futoshi Kuniyoshi , Yuji Kaneko , Hiroshi Hasegawa , Shiro Sasaki
发明人： Futoshi Kuniyoshi , Yuji Kaneko , Hiroshi Hasegawa , Shiro Sasaki
IPC分类号： H01F1/057
CPC分类号： H01F1/0571 , C22C38/002 , C22C38/005 , C22C38/06 , C22C38/10 , C22C38/16
摘要： An R-T-B based permanent magnet material alloy according to the present invention is an alloy in the shape of a thin plate including R2T14B columnar crystals and R-rich phases (where R is at least one of the rare-earth elements including Y, T is Fe with or without at least one nonferrous transition metal element, and B is boron with or without carbon). In a structure of the alloy as viewed on an arbitrary cross section including a normal to the thin plate, the ratio of the combined area of some of the R-rich phases, which have aspect ratios of 10 or more and the major axes of which define angles of 90±30 degrees with respect to the surface of the thin plate, to the overall area of the R-rich phases included in the alloy is at least 30%.
摘要翻译：根据本发明的基于RTB的永磁材料合金是包括R 2 Ti 14 B柱状晶体和富R相的薄板形状的合金（其中R是包括Y的至少一种稀土元素，T是具有或不具有至少一个非铁过渡金属元素的Fe，B是具有或不具有碳的硼）。在包含平板法线的任意截面观察合金的结构中，具有10个以上的长宽比的长宽比为10以上的部分富R相的部分的合并面积的比例相对于薄板的表面定义90±30度的角度，合金中包含的富R相的总面积为至少30％。

10. 发明授权

US07958929B2 Apparatus for producing alloy and rare earth element alloy 有权
标题翻译：用于生产合金和稀土元素合金的设备
公开(公告)号：US07958929B2
公开(公告)日：2011-06-14
申请号：US12093936
申请日：2007-04-06
申请人： Hiroshi Hasegawa , Kazuya Ueno , Shinichi Osawa , Shiro Sasaki
发明人： Hiroshi Hasegawa , Kazuya Ueno , Shinichi Osawa , Shiro Sasaki
IPC分类号： B22D11/12 , B22D45/00
CPC分类号： H01F1/0571 , B22F9/08 , B22F2998/10 , C22C1/04 , C22C1/0491 , C22C33/02 , C22C38/005 , C22C2202/02 , H01F1/401 , B22F9/04 , B22F1/0085
摘要： An apparatus for producing an alloy, including: a casting device which casts a molten alloy using the strip cast method; a crushing device which crushes the cast alloy after casting; and a heating device which keeps the thin laminas of the cast alloy after crushing at a predetermined temperature or which heats the thin laminas of the cast alloy after crushing, wherein the heating device is equipped with a container and a heater.
摘要翻译：一种合金的制造装置，其特征在于，包括：使用带钢铸造法铸造熔融合金的铸造装置; 铸造后粉碎铸造合金的破碎装置; 以及加热装置，其在预定温度下破碎后保持铸造合金的薄层状物，或者在粉碎后加热铸造合金的薄层状物，其中，加热装置配备有容器和加热器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式