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：US6155028A

公开(公告)日：2000-12-05

申请号：US130398

申请日：1998-08-06

申请人： Hiroshi Nagata ,  Masato Sagawa ,  Toshihiro Watanabe

发明人： Hiroshi Nagata ,  Masato Sagawa ,  Toshihiro Watanabe

IPC分类号： B30B15/30 ,  B65B1/26 ,  B65B1/24

CPC分类号： B65B1/26 ,  B30B15/302

摘要： A method for packing a material includes air tapping material contained in a feeding hopper to pack it into a container which is to be filled with the material, and separating the material in the feeding hopper and the container into a portion of the material packed in the container where the material has a uniform density and a portion which is the material remaining in the feeding hopper. The air tapping process includes subjecting the space that is supplied with the material to be packed to air pressure which is switched alternately from a low pressure state to a high pressure state and back to a low pressure state or from a high pressure state to a low pressure state and then back to a high pressure state, in either case causing the material to be packed to a high density. The portion of the material remaining in the feeding hopper is separated from the portion of the material packed in the container where the material has a uniform density by a grid provided in the opening of the feeding hopper located toward the container. The container into which the material is packed may be the cavity of a die used in the die pressing of compacts, such as a rubber mold used in cold isostatic pressing.

摘要翻译： 一种用于包装材料的方法包括供给料斗中包含的空气抽出材料，以将其包装成待填充材料的容器，并将进料斗和容器中的材料分离成包装在 容器，其中材料具有均匀的密度，以及作为进料斗中残留的材料的部分。 空气攻丝过程包括将待填充材料供应的空间经受从空气压力的空气压力，该压力交替地从低压状态切换到高压状态并且回到低压状态或从高压状态切换到低压状态 压力状态，然后回到高压状态，在任何一种情况下导致材料被包装成高密度。 残留在供料斗中的部分材料与装在容器中的材料部分分离，其中材料具有均匀的密度，栅格设置在位于容器的供料斗的开口内。 填充材料的容器可以是用于压模中的模具的空腔，例如用于冷等静压的橡胶模具。

公开(公告)号：US5762967A

公开(公告)日：1998-06-09

申请号：US634625

申请日：1996-04-18

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Toshihiro Watanabe

IPC分类号： B22F3/02 ,  B22F3/00 ,  B22F3/035 ,  B22F3/04 ,  B22F3/087 ,  B22F3/12 ,  B30B15/02 ,  H01F41/02 ,  B29C45/17

CPC分类号： B22F3/1233 ,  B22F3/04 ,  B22F3/087 ,  B30B15/024 ,  H01F41/0266 ,  B22F2999/00 ,  Y10S425/033 ,  Y10S425/044

摘要： A elastically and reversibly deformable rubber mold for producing powder compacts is made of a material at least a part of which is a mixture of rubber and magnetic powder. In use, this rubber mold filled with the magnetic powder and subjected to a magnetic field and pressure with punches, thereby compressing the powder to form powder compact. This makes the distribution of magnetic field in the cavity of the rubber mold more homogeneous, and therefore, the distortion, cracking and chipping caused by inhomogeneity of the distribution of the magnetic field are reduced, so that the shape of the resultant powder compact is closer to the end product.

摘要翻译： 用于制造粉末压块的弹性和可逆变形的橡胶模具由其至少一部分是橡胶和磁粉的混合物的材料制成。 在使用中，该橡胶模具充满磁粉并用冲压进行磁场和压力，由此压缩粉末以形成粉末压块。 这使得橡胶模具的空腔中的磁场分布更加均匀，因此由于磁场分布的不均匀性引起的变形，破裂和碎裂减少，使得所得到的粉末形状更接近 到最终产品。

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：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。

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：US08545641B2

公开(公告)日：2013-10-01

申请号：US11630898

申请日：2005-06-30

申请人： Masato Sagawa ,  Hiroshi Nagata ,  Osamu Itatani

发明人： Masato Sagawa ,  Hiroshi Nagata ,  Osamu Itatani

IPC分类号： H01F1/057

CPC分类号： H01F41/0246 ,  B22F3/1021 ,  B22F2998/10 ,  C22C1/0433 ,  C22C33/0278 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/16 ,  H01F1/0557 ,  H01F1/0577 ,  H01F41/0273 ,  B22F2201/10 ,  B22F9/08 ,  B22F3/004 ,  B22F2202/01 ,  B22F3/005 ,  B22F2202/05 ,  B22F9/04

摘要： A method for manufacturing a sintered rare-earth magnet having a magnetic anisotropy, in which a very active powder having a small grain size can be safely used in a low-oxidized state. A fine powder as a material of the sintered rare-earth magnet having a magnetic anisotropy is loaded into a mold until its density reaches a predetermined level. Then, in a magnetic orientation section, the fine powder is oriented by a pulsed magnetic field. Subsequently, the fine powder is not compressed but immediately sintered in a sintering furnace. A multi-cavity mold for manufacturing a sintered rare-earth magnet having an industrially important shape, such as a plate magnet or an arched plate magnet, may be used.

摘要翻译： 一种制造具有磁各向异性的稀土类烧结磁体的方法，其中可以在低氧化态下安全地使用具有小粒径的非常活泼的粉末。 将作为具有磁各向异性的烧结稀土类磁铁的材料的细粉末装载到模具中，直到其密度达到预定水平。 然后，在磁性取向部分中，细粉末通过脉冲磁场取向。 随后，细粉末不被压缩，但在烧结炉中立即烧结。 可以使用用于制造具有工业上重要形状的稀土类烧结磁体的多空腔模具，例如板状磁体或拱形板状磁体。