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1. 发明公开

EP0899049A4 UNIFIED JUNCTION STRUCTURE OF RARE-EARTH MAGNET AND METAL MATERIAL AND THE JOINTING METHOD 失效
标题翻译： VERBINDUNGSANORDNUNG ZWISCHEN SELTENERD-MAGNET UND METALLISCHEM MATERIAL UND VERBINDUNGSVERFAHREN
公开(公告)号：EP0899049A4
公开(公告)日：2002-06-19
申请号：EP98900442
申请日：1998-01-20
申请人： MEIDENSHA ELECTRIC MFG CO LTD , SUMITOMO SPEC METALS
发明人： KOGA MASAKI , SUZUKI NOBUTAKA , SAITOH HITOSHI , OYAMADA KENSHIRO , TOKUHARA KOKI , MINO SHUJI , ISHIGAKI NAOYUKI , YAMAMOTO HITOSHI
IPC分类号： B23K20/02 , B23K20/16 , H01F1/055 , H01F1/057 , H01F41/02 , H02K1/02 , H02K1/27 , H02K15/03 , B23K20/00
CPC分类号： H02K1/278 , B23K20/021 , B23K20/023 , B23K20/16 , H01F1/055 , H01F1/057 , H01F41/026 , H02K1/02 , H02K1/2726 , H02K15/03 , Y10S428/928 , Y10T428/12076 , Y10T428/12465 , Y10T428/12806 , Y10T428/12931 , Y10T428/12944 , Y10T428/12951 , Y10T428/12979
摘要： A unified junction structure which is obtained by jointing a rare-earth magnet (2) and an alloy material which is a high melting point metal or a high specific strength material by hot isostatic pressing and by solid state diffusional joining and a structure which is obtained by placing a thin layer of the high melting point material between the rare-earth magnet (2) and the alloy materials (3 and 4) which are a high specific strength material and joining the layers and materials into one body. The hot isostatic pressing is such that an object prepared by stacking the rare-earth magnet and the high melting point metal layers is put into an enclosed high pressure vessel, a predetermined pressure is applied to the object at a predetermined temperature in an inert gas atmosphere for a predetermined time and the object is pressed uniformly isostatically by the synergistic effect of pressure and temperature and jointed integrally. By this method, a junction structure which can be integrally jointed with another metal member while the brittleness and the lack of rigidity, elasticity, etc. of the rare-earth magnet are covered and magnetic characteristics are not deteriorated.
摘要翻译：通过将稀土类磁体（2）与作为高熔点金属或高比强度材料的合金材料进行热等静压和固态扩散接合而获得的统一接合结构和获得的结构通过在稀土类磁体（2）和作为高比强度材料的合金材料（3和4）之间放置薄层的高熔点材料，并将层和材料接合在一体内。热等静压通过将稀土类磁铁和高熔点金属层叠层而成的物体放入封闭的高压容器内，在惰性气体气氛中，在规定的温度下向被加工物施加规定的压力在预定时间内，通过压力和温度的协同效应均匀地均匀地压制物体并且一体地接合。通过这种方法，可以在覆盖稀土类磁体的脆性和缺乏刚性，弹性等的同时与其他金属构件一体地接合的接合结构，并且磁特性不劣化。

2. 发明专利

DE60100154D1 未知
公开(公告)号：DE60100154D1
公开(公告)日：2003-05-08
申请号：DE60100154
申请日：2001-05-03
申请人： SUMITOMO SPEC METALS
发明人： OKAYAMA KATSUMI , ISHIGAKI NAOYUKI , OKUMURA SHUHEI
IPC分类号： B22F9/04 , B22F1/00 , B22F9/08 , H01F1/053 , H01F1/057 , H01F1/06 , H01F1/08 , H01F41/02
摘要： The method for manufacturing alloy powder for R-Fe-B type rare earth magnets of the present invention includes a first pulverization step of coarsely pulverizing a material alloy for rare earth magnets and a second pulverization step of finely pulverizing the material alloy. In the first pulverization step, the material alloy is pulverized by a hydrogen pulverization method. In the second pulverization step, easily oxidized super-fine powder (particle size: 1.0 mu m or less) is removed to adjust the particle quantity of the super-fine powder to 10% or less of the particle quantity of the entire powder.

3. 发明专利

DE69318147T2 未知
公开(公告)号：DE69318147T2
公开(公告)日：1998-11-12
申请号：DE69318147
申请日：1993-10-14
申请人： SUMITOMO SPEC METALS
发明人： KANEKO YUJI , ISHIGAKI NAOYUKI , TOKUHARA KOKI
IPC分类号： H01F1/053 , B22F3/04 , B22F3/087 , H01F1/057
摘要： It is an object of the present invention to provide R-Fe-B permanent magnet materials having a good oxidation resistance and magnetic characteristics, and a process of producing the same capable of pulverizing efficiently, whereby an R-Fe-B molten alloy having a specific composition is casted into a cast piece having a specific plate thickness and a structure, in which an R-rich phase is finely separated below 5 mu m, by a strip casting process, the cast piece is subjected to a Hydrogenation for spontaneous decay, and thereafter, an alloy powder is dehydrogenated and stabilized for pulverization so as to fractionize crystal grains of a main phase constituting an alloy ingot, thereby the powder having a uniform grain distribution can be produced at an efficiency of about twice as much as the conventional process, and the R-rich phase and an R2Fe14B phase are also fractionized at the time of pulverization, thus by magnetization by pressing after the orientation using a pulse magnetic field, a high performance R-Fe-B permanent magnet having, a good oxidation resistance and magnetic characteristics of the magnetic alloy, particularly, a total value A + B of a maximum energy product value (BH) max (MGOe); A and a characteristic value; B of a coercive force iHc(kOe) of 59 or more and the squareness of demagnetization curve {(Br /4)/(BH) max} of 1.01 to 1.045 is obtained.

4. 发明专利

DE3103706A1 Permanent-magnet alloy 未知
公开(公告)号：DE3103706A1
公开(公告)日：1981-11-19
申请号：DE3103706
申请日：1981-02-04
申请人： SUMITOMO SPEC METALS
发明人： HIGUCHI AKIRA , ISHIGAKI NAOYUKI , MATSUURA YUTAKA , YAMAMOTO HITOSHI
IPC分类号： C22C1/04 , C22C19/00 , C22C19/03 , C22C19/07 , C22C38/00 , C22C38/10 , H01F1/053 , H01F1/055 , C22C38/08 , H01F1/04
摘要： Proceeding from permanent-magnet alloys of rare earths and cobalt, intermetallic permanent-magnet compounds of this type having the formula: R(NixFeyCo1-x-y-z-wCuzXw)A are proposed in which R contains at least one element of the lanthanides or of the light rare earths and Y, in particular, that is to say Y, La, Ce, Pr, Nd and Sm, and X contains at least one of the elements Mn, Cr, V, Ti, Mo, Nb, Zr, W, Ta and Hf and furthermore: 0.02

5. 发明专利

DE60100154T2 未知
公开(公告)号：DE60100154T2
公开(公告)日：2003-11-06
申请号：DE60100154
申请日：2001-05-03
申请人： SUMITOMO SPEC METALS
发明人： OKAYAMA KATSUMI , ISHIGAKI NAOYUKI , OKUMURA SHUHEI
IPC分类号： B22F9/04 , B22F1/00 , B22F9/08 , H01F1/053 , H01F1/057 , H01F1/06 , H01F1/08 , H01F41/02
摘要： The method for manufacturing alloy powder for R-Fe-B type rare earth magnets of the present invention includes a first pulverization step of coarsely pulverizing a material alloy for rare earth magnets and a second pulverization step of finely pulverizing the material alloy. In the first pulverization step, the material alloy is pulverized by a hydrogen pulverization method. In the second pulverization step, easily oxidized super-fine powder (particle size: 1.0 mu m or less) is removed to adjust the particle quantity of the super-fine powder to 10% or less of the particle quantity of the entire powder.

6. 发明专利

DE69409357T2 未知
公开(公告)号：DE69409357T2
公开(公告)日：1998-10-29
申请号：DE69409357
申请日：1994-12-28
申请人： SUMITOMO METAL IND , SUMITOMO SPEC METALS
发明人： KISHIMOTO YOSHIHISA , HIRAISHI NOBUSHIGE , TAKAHASHI WATARU , OHKITA MASAKAZU , ISHIGAKI NAOYUKI , MATSUURA YUTAKA
IPC分类号： C22C1/04 , H01F1/057
摘要： To a fine R-Fe-B alloy powder comprised predominantly of 10 - 30 atomic % of R (wherein R stands for at least one elements selected from rare earth elements including yttrium), 2 - 28 atomic % of B, and 65 - 82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01% - 2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder. The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged. Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.

7. 发明专利

DE69409357D1 未知
公开(公告)号：DE69409357D1
公开(公告)日：1998-05-07
申请号：DE69409357
申请日：1994-12-28
申请人： SUMITOMO METAL IND , SUMITOMO SPEC METALS
发明人： KISHIMOTO YOSHIHISA , HIRAISHI NOBUSHIGE , TAKAHASHI WATARU , OHKITA MASAKAZU , ISHIGAKI NAOYUKI , MATSUURA YUTAKA
IPC分类号： C22C1/04 , H01F1/057
摘要： To a fine R-Fe-B alloy powder comprised predominantly of 10 - 30 atomic % of R (wherein R stands for at least one elements selected from rare earth elements including yttrium), 2 - 28 atomic % of B, and 65 - 82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01% - 2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder. The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged. Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.

8. 发明专利

AT165477T 未知
公开(公告)号：AT165477T
公开(公告)日：1998-05-15
申请号：AT93308184
申请日：1993-10-14
申请人： SUMITOMO SPEC METALS
发明人： KANEKO YUJI , ISHIGAKI NAOYUKI , TOKUHARA KOKI
IPC分类号： H01F1/053 , B22F3/04 , B22F3/087 , H01F1/057
摘要： It is an object of the present invention to provide R-Fe-B permanent magnet materials having a good oxidation resistance and magnetic characteristics, and a process of producing the same capable of pulverizing efficiently, whereby an R-Fe-B molten alloy having a specific composition is casted into a cast piece having a specific plate thickness and a structure, in which an R-rich phase is finely separated below 5 mu m, by a strip casting process, the cast piece is subjected to a Hydrogenation for spontaneous decay, and thereafter, an alloy powder is dehydrogenated and stabilized for pulverization so as to fractionize crystal grains of a main phase constituting an alloy ingot, thereby the powder having a uniform grain distribution can be produced at an efficiency of about twice as much as the conventional process, and the R-rich phase and an R2Fe14B phase are also fractionized at the time of pulverization, thus by magnetization by pressing after the orientation using a pulse magnetic field, a high performance R-Fe-B permanent magnet having, a good oxidation resistance and magnetic characteristics of the magnetic alloy, particularly, a total value A + B of a maximum energy product value (BH) max (MGOe); A and a characteristic value; B of a coercive force iHc(kOe) of 59 or more and the squareness of demagnetization curve {(Br /4)/(BH) max} of 1.01 to 1.045 is obtained.

9. 发明专利

FI946137A 未知
公开(公告)号：FI946137A
公开(公告)日：1995-06-29
申请号：FI946137
申请日：1994-12-28
申请人： SUMITOMO METAL IND , SUMITOMO SPEC METALS
发明人： KISHIMOTO YOSHIHISA , HIRAISHI NOBUSHIGE , TAKAHASHI WATARU , OHKITA MASAKAZU , ISHIGAKI NAOYUKI , MATSUURA YUTAKA
IPC分类号： C22C1/04 , H01F1/057 , H01F , C04B
摘要： To a fine R-Fe-B alloy powder comprised predominantly of 10 - 30 atomic % of R (wherein R stands for at least one elements selected from rare earth elements including yttrium), 2 - 28 atomic % of B, and 65 - 82 atomic % of Fe in which up to 50 atomic % of Fe may be replaced by Co, at least one boric acid ester compound such as tributyl borate is added as a lubricant in a proportion of 0.01% - 2% by weight and mixed uniformly before, during, or after fine grinding of the alloy powder. The resulting powder mixture is compacted by compression molding in a magnetic field and the green compacts are sintered and aged. Compression molding can be performed continuously without need of mold lubrication, and the resulting magnets have improved magnet properties with respect to residual flux density, maximum energy product, and intrinsic coercive force.

10. 发明专利

DE3677499D1 未知
公开(公告)号：DE3677499D1
公开(公告)日：1991-03-14
申请号：DE3677499
申请日：1986-03-06
申请人： SUMITOMO SPEC METALS
发明人： ISHIGAKI NAOYUKI , HAMADA TAKAKI , FUJIMURA SETSUO - - MORINOKI-C
IPC分类号： B22F9/20 , C22B5/04 , C22B59/00 , C22C1/04 , H01F1/057 , H01F1/06 , H01F1/04
摘要： A method for producing a rare earth alloy by reducing a mixture of corresponding rare earth oxides, Fe, and a boron containing material by Ca, contacting the reduced mass with water, and treating the resultant slurry with water whereby the resultant rare earth alloy for producing permanent magnet comprises 15-65 atomic % R1, 35-83 atomic % Fe, and 0-15 atomic % B, where R1 represents at least one of heavy rare earth elements Gd, Tb, Dy, Ho, Er, Tm and Yb. Using this alloy, Fe-B-R base magnets wherein R1 is substituted for part of R (R representing lanthanide and/or Y) having a high performance are produced with modest costs.

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