公开(公告)号：CA2452234A1

公开(公告)日：2004-06-26

申请号：CA2452234

申请日：2003-12-08

Applicant: JFE STEEL CORP

Inventor： NAKAMURA NAOMICHI ,  UENOSONO SATOSHI ,  MAETANI TOSHIO ,  UETA MASATERU

IPC: B22F1/02 ,  H01F1/06 ,  H01F1/147 ,  H01F1/153 ,  H01F1/24

Abstract: This invention provides a metal powder for powder magnetic cores, which have good insulation performance and high magnetic flux density, and which is favorabl e for motor cores. Ferromagnetic metal powder may be coated with a coating material and a phosphate or phosphoric acid compound containing aluminum is used for the coating materia l. Coating the surface of iron powder with aluminum phosphate realizes to produce high- quality powder magnetic cores that have good insulation performance and high magnetic flux density and are favorable for motor cores. Further coating the aluminum phosphate-coated metal powder with silane compound or surfactant realizes more stable compressed shaped articles of the powder. And the properties of the articles do not fluctuate while stored for , so long as they are resistant to moisture. This invention contributes to producing powder magnetic cores for motors, and to the process for powder magnetic cores, furthermore, to the related art field.

公开(公告)号：CA2501417A1

公开(公告)日：2002-11-17

申请号：CA2501417

申请日：2002-02-21

Applicant: JFE STEEL CORP

Inventor： OHTA JUNICHI ,  UENOSONO SATOSHI ,  SONOBE AKIO

IPC: B22F1/00 ,  C22C33/02

公开(公告)号：JP2010156059A

公开(公告)日：2010-07-15

申请号：JP2010064350

申请日：2010-03-19

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： UNAMI SHIGERU ,  OZAKI YUKIKO ,  UENOSONO SATOSHI

IPC: B22F1/00 ,  C22C38/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a high density iron-based powder molded body which can obtain a molded body having high density by single press molding, and to provide a method for producing a sintered compact using the molded body. SOLUTION: The iron-based powdery mixture comprises: iron-based powder; a lubricant for powder molding in which 10 to 75 mass% of the whole quantity is composed of the one having a melting point lower than the prescribed temperature in press molding, and the balance is composed of the one having a melting point higher than the prescribed temperature in press molding; and graphite by COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种可以通过单次压制成型得到高密度成形体的高密度铁系粉末成型体的制造方法，提供一种使用该成型体的烧结体的制造方法 身体。 铁基粉末混合物包括：铁基粉末; 用于粉末成型的润滑剂，其中10〜75质量％的全部量由熔点低于压制成型中的规定温度的组成构成，余量由熔点高于规定温度 压模温度; 和相对于铁基粉末混合物的总量的<0.5质量％的石墨。 将加热的铁基粉末状混合物填充到表面用包含熔点高于压制成型时的温度为0.5〜80质量％的润滑剂的润滑剂进行电荷粘附的模具中，并且具有熔点 低于压制成型的温度，然后在规定温度下进行成型为成型体，或者进一步烧结成型体。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010007176A

公开(公告)日：2010-01-14

申请号：JP2008282886

申请日：2008-11-04

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： KONO TAKASHI ,  ONO TOMOSHIGE ,  OZAKI YUKIKO ,  UENOSONO SATOSHI

IPC: B22F1/00

Abstract: PROBLEM TO BE SOLVED: To provide an iron-based powdery mixture suitable for use in a powder metallurgy technology, wherein the productivity in a compacting stage and a sintering stage and the yield of the compact and a sintered body are improved while compatibility between improvement of fluidity of the iron-based powdery mixture and reduction of an extracting force of a compact is attained by an inexpensive means.
SOLUTION: The powdery mixture for powder metallurgy obtained by mixing porous particles composed of organic mater containing a lubricant with iron powder.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种适用于粉末冶金技术的铁基粉末混合物，其中在压实阶段和烧结阶段的生产率以及压实体和烧结体的产率提高，同时兼容性 通过廉价的方法可以获得铁基粉末混合物的流动性的改善和压块的提取力的降低。

解决方案：通过将由润滑剂的有机物组成的多孔颗粒与铁粉混合而获得的用于粉末冶金的粉末混合物。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010043361A

公开(公告)日：2010-02-25

申请号：JP2009261253

申请日：2009-11-16

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： UEDA MASATERU ,  UENOSONO SATOSHI ,  MAETANI TOSHIO

IPC: B22F1/02 ,  B22F1/00 ,  B22F3/00 ,  H01F1/24 ,  H01F41/02

Abstract: PROBLEM TO BE SOLVED: To provide a soft magnetic metallic powder having excellent magnetic flux density and compressibility and also having high insulation properties.
SOLUTION: The surface of pure iron powder in which the whole face or a part of the surface is provided with iron oxide is coated with at least one insulation layer selected from among oxides, carbonates and sulfates, further, the surface thereof is coated with a silicone resin layer, and the surface of the pure iron powder and the insulation layer are fixed by bond strengthening treatment.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供具有优异的磁通密度和压缩性并且还具有高绝缘性的软磁性金属粉末。 解决方案：其中整面或表面的一部分设置有氧化铁的纯铁粉的表面涂覆有选自氧化物，碳酸盐和硫酸盐中的至少一个绝缘层，此外，其表面是 涂覆有硅树脂层，纯铁粉末和绝缘层的表面通过粘结强化处理固定。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010007175A

公开(公告)日：2010-01-14

申请号：JP2008282883

申请日：2008-11-04

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： KONO TAKASHI ,  ONO TOMOSHIGE ,  OZAKI YUKIKO ,  UENOSONO SATOSHI

IPC: B22F1/00 ,  B22F3/02 ,  C22C33/02

Abstract: PROBLEM TO BE SOLVED: To provide an iron-based powdery mixture suitable for use in a powder metallurgy technology, wherein the productivity in a compacting stage and a sintering stage and the yield of the compact and a sintered body are improved while compatibility between improvement of fluidity of the iron-based powdery mixture and reduction of an extracting force of a compact is attained by an inexpensive means.
SOLUTION: The iron-based powdery mixture for powder metallurgy is obtained by mixing carbonaceous porous particles containing a lubricant with iron powder. Preferably, the porous particles are composed of an aggregate of primary fine particles.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种适用于粉末冶金技术的铁基粉末混合物，其中在压实阶段和烧结阶段的生产率以及压实体和烧结体的产率提高，同时兼容性 通过廉价的方法可以获得铁基粉末混合物的流动性的改善和压块的提取力的降低。

解决方案：用于粉末冶金的铁基粉末混合物是通过将含有润滑剂的含碳多孔颗粒与铁粉混合而获得的。 优选地，多孔粒子由一次粒子的聚集体构成。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009173958A

公开(公告)日：2009-08-06

申请号：JP2008010790

申请日：2008-01-21

Applicant: Jfe Steel Corp ,  Jfeスチール株式会社

Inventor： UNAMI SHIGERU ,  UENOSONO SATOSHI

IPC: B22F1/00 ,  C22C33/02 ,  C22C38/00

Abstract: PROBLEM TO BE SOLVED: To provide a powder mixture for powder metallurgy which is suitable for obtaining a sintered member having excellent wear resistance and heat resistance and also to provide its manufacturing method.
SOLUTION: The powder mixture for powder metallurgy is constituted so that graphite powder is stuck, through an organic binder, to iron-based powder having a composition containing 2.4 to 14% of prealloyed Mo and the balance Fe with inevitable impurities.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供适合于获得具有优异的耐磨性和耐热性的烧结构件的粉末冶金粉末混合物，并提供其制造方法。 解决方案：粉末冶金用粉末混合物构成为将石墨粉末通过有机粘合剂粘合到具有预合金化Mo的2.4〜14％的组成的铁基粉末，余量为不可避免的杂质的Fe构成。 版权所有（C）2009，JPO＆INPIT