公开(公告)号：US5482575A

公开(公告)日：1996-01-09

申请号：US160652

申请日：1993-12-02

申请人： Alain Barzasi ,  Hiroshi Nagata ,  Masato Sagawa ,  Fernand Vial

发明人： Alain Barzasi ,  Hiroshi Nagata ,  Masato Sagawa ,  Fernand Vial

IPC分类号： C22C33/02 ,  B22F3/00 ,  C01F1/00 ,  C04B35/00 ,  C22C1/04 ,  C22C38/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/06 ,  H01F1/08 ,  H01F41/00

CPC分类号： C22C1/0441 ,  H01F1/0571 ,  H01F1/0573 ,  H01F1/0577

摘要： A magnetic powder for the manufacture of sintered magnets of the RE-T-B family, where RE represents at least one rare earth, T represents at least one transition element and B represents boron, the powder possibly containing other minor elements, is constituted by a mixture of two powders (A) and (B):a) Powder (A) consists of grains with a quadratic structure RE.sub.2 T.sub.14 B, T being mainly iron with Co/Fe

摘要翻译： 用于制造RE-TB族烧结磁体的磁粉，其中RE表示至少一种稀土，T表示至少一种过渡元素，B表示硼，可能含有其它次要元素的粉末由混合物 的两种粉末（A）和（B）：a）粉末（A）由具有二次结构RE2T14B的晶粒组成，T主要是Co / Fe <8％的铁，并且可能含有高达0.5％的Al 至少0.05％的Cu和至少4％的V族，Nb，Hf，Mo，Cr，Ti，Zr，Ta，W和不可避免的杂质中的至少一种元素，Fisher粒度在3.5至5μm之间 ; b）粉末（B）富含RE，含有Co，并且具有以下重量组成：RE 52-70％，包含至少40％（绝对值）的一种或多种轻稀土，选自 La，Ce，Pr，Nd，Sm，Eu; 氢含量（重量ppm）大于130％的RE; Co 20-35％; Fe 0-20％; B

公开(公告)号：US5123979A

公开(公告)日：1992-06-23

申请号：US617648

申请日：1990-11-26

申请人： Philippe Tenaud ,  Fernand Vial ,  Masato Sagawa

发明人： Philippe Tenaud ,  Fernand Vial ,  Masato Sagawa

IPC分类号： C22C1/04 ,  B22F9/02 ,  C21D6/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  H01F1/053 ,  H01F1/057 ,  H01F7/02

CPC分类号： C22C38/10 ,  B22F9/023 ,  H01F1/057 ,  H01F1/0577

摘要： The invention relates to Fe Nd B type alloys for permanent magnets, the permanent magnets thus obtained and a method of producing them.They have high magnetic characteristics with good temperature resistance and good resistance to atmospheric corrosion.They comprise, in at%, 12 to 18% of rare earths, 3 to 30% of Co, 5.9 to 12% of B, 2 to 10% of V, some Al and Cu, the remainder being iron and unavoidable impurities. The V can be substituted by other refractory elements (Nb, W, Cr, Mo, Ti, Zr, Hf, Ta).The method mainly involves sintering at between 1050 and 1110.degree. C. followed by annealing at between 850 and 1050.degree. C. and/or artificial ageing at between 560.degree. C. and 850.degree. C.

摘要翻译： 本发明涉及用于永磁体的Fe Nd B型合金，由此获得的永磁体及其制造方法。 它们具有高磁特性，耐温性好，耐大气腐蚀性好。 它们以％计含有12至18％的稀土，3至30％的Co，5.9至12％的B，2至10％的V，一些Al和Cu，其余为铁和不可避免的杂质。 V可以被其他难熔元素（Nb，W，Cr，Mo，Ti，Zr，Hf，Ta）取代。 该方法主要包括在1050和1110℃之间进行烧结，然后在850至1050℃之间进行退火和/或在560℃至850℃之间的人工时效。

公开(公告)号：US5411603A

公开(公告)日：1995-05-02

申请号：US162292

申请日：1993-12-07

申请人： Fernand Vial ,  Masato Sagawa

发明人： Fernand Vial ,  Masato Sagawa

IPC分类号： B02C19/06 ,  B02C23/18 ,  B22F9/04 ,  C04B35/00 ,  H01F1/057 ,  H01F1/06 ,  H01F7/02 ,  H01F41/02

CPC分类号： H01F41/026 ,  H01F1/0572

摘要： The invention concerns a method of protecting magnetic powders and permanent magnets containing at least one rare earth, at least one transition metal and boron from oxidation and atmospheric corrosion, by the introduction of gaseous fluorine during the grinding of the powders. It is characterized in that the fluorine is introduced by a mixture of F.sub.2 +N.sub.2 during the fine grinding of the powders, the mixture containing from 1 to 100 ppm (by volume) of fluorine, and preferably from 1 to 10 ppm. The powders thus obtained are far less reactive and the densified magnets are far more resistant to atmospheric corrosion than non fluorinated powders and magnets obtained therefrom.

摘要翻译： 本发明涉及通过在研磨粉末期间引入气态氟来保护含有至少一种稀土，至少一种过渡金属和硼的氧化和大气腐蚀的磁粉和永磁体的方法。 其特征在于，在粉末的细粉碎期间，通过F2 + N2的混合物引入氟，该混合物含有1〜100ppm（体积）的氟，优选为1〜10ppm。 由此获得的粉末的反应性低得多，并且致密化的磁体比非氟化粉末和从其获得的磁体更耐大气腐蚀。

公开(公告)号：US5221368A

公开(公告)日：1993-06-22

申请号：US735893

申请日：1991-07-25

申请人： Armand Gabriel ,  Masato Sagawa ,  Philippe Tenaud ,  Pierre Turillon ,  Fernand Vial

发明人： Armand Gabriel ,  Masato Sagawa ,  Philippe Tenaud ,  Pierre Turillon ,  Fernand Vial

IPC分类号： C22C33/02 ,  B22F9/02 ,  C22C38/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/06

CPC分类号： B22F9/023 ,  H01F1/0573

摘要： The invention relates to a method of obtaining friable and relatively inert TR Fe B type magnetic materials in divided form which lead to magnets having improved corrosion resistance. This method involves treating the material in an atmosphere containing (or capable of containing) hydrogen under the following conditions of absolute pressure (P) and of temperature (T.degree. C.): if P.ltoreq.Pa, 250 Pa, 250+100 log (P/Pa)

摘要翻译： 本发明涉及一种获得脆性和相对惰性的TR Fe B型磁性材料的方法，其分为多种形式，其导致具有改善的耐腐蚀性的磁体。 该方法包括在绝对压力（P）和温度（T℃）的以下条件下在含有（或能够含有）氢气的气氛中处理材料：如果P <250，则 Pa，250 + 100log（P / Pa）

公开(公告)号：US06764643B2

公开(公告)日：2004-07-20

申请号：US10054954

申请日：2002-01-25

申请人： Masato Sagawa ,  Tochihiro Watanabe ,  Hiroshi Nagata

发明人： Masato Sagawa ,  Tochihiro Watanabe ,  Hiroshi Nagata

IPC分类号： B22F100

CPC分类号： B30B15/302 ,  B30B11/00

摘要： A powder compaction method in which a powder p is filled by air tapping or other suitable method into a mold 1, then while the mold 1 being filled with the powder, the powder particles are bound with each other without application of force from outside the mold to form a compact C, and then the compact C is taken out from the mold 1. This method produces a variety of shapes of the compact far greater than in conventional methods, and net shape manufacturing of products with complex shapes is made possible by this method. Because this method uses far less binder compared to MIM and PIM that are expected as methods for producing products with complicated shapes, the time needed for elimination of the binder is much shorter than in MIM and PIM.

摘要翻译： 粉末压制方法，其中粉末p通过空气攻丝或其它合适的方法填充到模具1中，然后当模具1填充粉末时，粉末颗粒彼此结合，而不受模具外部的力 以形成紧凑的C，然后将紧凑的C从模具1中取出。该方法产生远远大于常规方法的多种形状的紧凑形状，并且通过这种方式可以实现具有复杂形状的产品的净形状制造 方法。 由于与MIM和PIM相比，该方法使用的粘合剂远远少于生产具有复杂形状的产品的方法，所以消除粘合剂所需的时间比MIM和PIM短得多。

公开(公告)号：US5725816A

公开(公告)日：1998-03-10

申请号：US712543

申请日：1996-09-11

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe ,  Terumasa Miyoshi ,  Mizuho Kasahara

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe ,  Terumasa Miyoshi ,  Mizuho Kasahara

IPC分类号： B22F3/00 ,  B30B11/02 ,  B30B15/30 ,  B29C43/14

CPC分类号： B30B15/024 ,  B22F3/004 ,  B30B11/027 ,  B30B15/302

摘要： The present invention relates to a packing method in which a material (p) is fed into a space comprising an opening (4c) for feeding the material and a space (4d) to be packed with said material, and said space is subjected to air tapping, that is, switching of air-pressure from a low air-pressure state to a high air-pressure state alternately, thereby packing the material into the space (4d) at a high packing-density. The use of air tapping for packing a material into a space makes the packing-density of the material uniform.

摘要翻译： 本发明涉及一种包装方法，其中将材料（p）进料到包括用于供给材料的开口（4c）和用于填充材料的空间（4d）的空间中，并且所述空间经受空气 也就是说，空气压力从低空气压力状态交替地转换到高空气压力状态，从而以高填充密度将材料包装到空间（4d）中。 使用空气攻丝将材料包装在一个空间内使得材料的填充密度均匀。

公开(公告)号：US5250255A

公开(公告)日：1993-10-05

申请号：US800356

申请日：1991-12-02

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

IPC分类号： B22F3/00 ,  B22F3/02 ,  B22F3/12 ,  B22F3/22 ,  B30B11/00 ,  B30B11/02 ,  B30B15/02 ,  B30B15/30 ,  H01F41/02

CPC分类号： B22F3/225 ,  B22F3/003 ,  B22F3/004 ,  B22F3/02 ,  B22F3/1233 ,  B22F3/22 ,  B30B11/008 ,  B30B11/02 ,  B30B11/027 ,  B30B15/024 ,  B30B15/302 ,  H01F41/0266 ,  B22F2003/026 ,  B22F2998/00 ,  B22F2999/00 ,  B29C2043/046 ,  B29C2043/3494 ,  B29C2043/3652 ,  B29C2043/3689 ,  B29C43/34 ,  B29C43/361

摘要： Green compacts for sintered ceramic bodies and for sintered permanent magnets are produced by first preparing outside a die press machine a mold which contains a rubber portion in at least a side portion. The mold cavity is then filled with the fine powder which is to form the compact to a density which is at least 1.2 times the natural filling density of the powder. The filled rubber mold is then placed in the die press machine and compacted in the die press machine to produce the green compact. The natural filling density is obtained by allowing the powder to fall from a powder pan into the rubber mold until the powder reaches the top of the rubber mold, where the distance from the powder pan to the bottom of the rubber mold is 3.7 times the depth of the cavity of the rubber mold.

公开(公告)号：US5672363A

公开(公告)日：1997-09-30

申请号：US461614

申请日：1995-06-05

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Hiroo Shirai

IPC分类号： B22F3/00 ,  B22F3/22 ,  B30B11/00 ,  B30B11/02 ,  B30B15/02 ,  H01F41/02 ,  B29C43/00

CPC分类号： B22F3/225 ,  B22F3/003 ,  B30B11/005 ,  B30B11/008 ,  B30B11/02 ,  B30B11/022 ,  B30B11/027 ,  B30B15/024 ,  B30B15/302 ,  H01F41/0266 ,  B22F2003/026 ,  B22F2998/00 ,  B22F2999/00 ,  B29C2043/046 ,  B29C2043/3652 ,  B29C2043/3689 ,  B29C43/36 ,  B29K2303/06 ,  Y10S425/044

摘要： An apparatus for producing a green compact includes a circuit that circulates die assemblies, each of which contains a rubber mold having rubber in at least its side portion. The apparatus also includes a high density filling device that has a feeder for feeding powder into the rubber molds; a pusher or a vibrator or both a vibrator and a pusher; a die press machine configured to impart a compaction force sufficient to produce the green compact to each of the circulating die assemblies in succession; and a device for removing the green compact from each rubber mold. The high-density filling device, the die-press machine and the removing device are successively arranged along the circuit. Each of the circulating die assemblies has sufficient structural integrity to withstand the compaction force because all structure necessary to withstand the compaction force is present in the circulating die assemblies.

摘要翻译： 一种用于制造生坯的设备包括使模具组件循环的电路，每个模具组件至少在其侧部包含具有橡胶的橡胶模具。 该装置还包括高密度填充装置，其具有用于将粉末供入到橡胶模具中的进料器; 推动器或振动器，或振动器和推动器两者; 一种模压机，其被配置成赋予足够的压实力以连续地向每个循环模具组件生产生坯; 以及用于从每个橡胶模具去除生坯的装置。 高密度填充装置，冲压机和去除装置沿着电路连续布置。 每个循环模具组件具有足够的结构完整性以承受压实力，因为在循环模具组件中存在承受压实力所需的所有结构。

公开(公告)号：US5505990A

公开(公告)日：1996-04-09

申请号：US264753

申请日：1994-06-23

申请人： Masato Sagawa ,  Hiroshi Watanabe ,  Hiroshi Nagata

发明人： Masato Sagawa ,  Hiroshi Watanabe ,  Hiroshi Nagata

IPC分类号： B05D1/00 ,  B05D3/02 ,  B05D3/12 ,  C23C24/04

CPC分类号： B05D3/12 ,  B05D1/00 ,  C23C24/045 ,  B05D2258/00 ,  B05D2401/32 ,  B05D3/0254

摘要： A method for forming a coating on at least one part to be coated has the steps of agitating a mixture including (i) the at least one part to be coated, (ii) a material that forms an adhesive layer on the at least one part to be coated, (iii) impact media, and (iv) multiple compositions of powder material; and fusing at least one of the multiple compositions of powder material.

摘要翻译： 一种在待涂覆的至少一个部分上形成涂层的方法包括以下步骤：搅拌混合物，所述混合物包括（i）待涂覆的至少一个部分，（ii）在至少一个部分上形成粘合剂层的材料 （iii）冲击介质，和（iv）多种组合物的粉末材料; 并且融合所述多种粉末材料组合物中的至少一种。

公开(公告)号：US06475430B1

公开(公告)日：2002-11-05

申请号：US09656373

申请日：2000-09-06

申请人： Hiroshi Nagata ,  Masato Sagawa

发明人： Hiroshi Nagata ,  Masato Sagawa

IPC分类号： B22F310

CPC分类号： B30B15/302 ,  B30B11/00 ,  B65B1/26 ,  B65B63/028

摘要： The present invention relates to a packing method and an apparatuses implementing said method in which a material is packed into a container by an air tapping process in which the air-pressure state of the space comprising a container and a space part connected with said container, which space being loaded with the material, is switched several times from a low air-pressure state to a high air-pressure state alternately, while keeping said low air-pressure state equal to or higher than the atmospheric pressure existing outside said space, thereby preventing the material from getting blown up by the inflow of the atmospheric air outside the container and packing a material into said container homogeneously.

摘要翻译： 本发明涉及一种包装方法和实施上述方法的装置，其中通过空气攻丝过程将材料包装在容器中，其中包括容器的空间的空气压力状态和与所述容器连接的空间部分， 装载该材料的空间交替地从低气压状态切换到高空气压状态，同时保持所述低空气压力状态等于或高于存在于所述空间外部的大气压力，从而 防止材料通过容器外部的大气引入而被吹出，同时将材料均匀地包装到容器中。