公开(公告)号：EP1323840A4

公开(公告)日：2006-05-31

申请号：EP00957118

申请日：2000-09-12

Applicant: JFE STEEL CORP

Inventor： UNAMI SHIGERU ,  UENOSONO SATOSHI

IPC: B22F1/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16

CPC classification number: C22C38/12 ,  C22C33/0207 ,  C22C33/0257 ,  C22C38/08 ,  C22C38/16

Abstract: An iron base mixed powder which comprises an alloy steel powder containing an alloy obtained by prealloying 0.5 to 3 mass % of Ni and an amount more than 0.7 % and up to 4 mass % of Mo, Fe and inevitable impurities, 1 to 5 mass % of a Ni powder, 0.5 to 3 mass % of a Cu powder and 0.2 to 0.9 mass % of a graphite powder, wherein all percentages are based on the total amount of the iron base mixed powder and the amount of Fe and inevitable impurities is the balance between those of the mixed powder and the mentioned metals except Fe. The alloy steel powder may contain a prealloy which further contains 0.2 to 0.7 mass % of Cu in addition to Ni and Mo.

Abstract translation: 基于混合物的质量百分比，将含有0.5％Ni粉末，0.5-3％Cu粉末和0.2-0.9％石墨粉末的合金钢粉末混入含有0.5-3质量％的预合金化Ni ，超过0.7〜4质量％的预合金化Mo，余量为Fe和不可避免的杂质。 除了Ni和Mo之外，合金钢粉还含有0.2-0.7质量％的预合金化Cu。

公开(公告)号：EP1097770A4

公开(公告)日：2004-01-02

申请号：EP00909684

申请日：2000-03-17

Applicant: UNISIA JECS CORP ,  JFE STEEL CORP

Inventor： YOSHIMURA TAKASHI ,  AMMA HIROYUKI ,  FUJINAGA MASASHI ,  IIJIMA MITSUMASA ,  HATAI YASUO ,  MATSUMOTO TAKAYUKI ,  UENOSONO SATOSHI ,  UNAMI SHIGERU

IPC: C22C33/02 ,  B22F3/02

CPC classification number: C22C33/02 ,  B22F2998/00 ,  B22F2998/10 ,  B22F3/16 ,  C22C33/0228 ,  B22F3/02 ,  B22F3/10 ,  B22F3/20

Abstract: A re-compression molded body of a metallic powder molding material having an excellent deformability suitable for obtaining high-mechanical-strength mechanical parts made from sintered metals and a sintered body obtained from the re-compression molded body, and production methods thereof comprising the following steps: In a preforming process (1), metallic powder (7), obtained by mixing metal powder (7a) mainly containing iron with preferably at least 0.1 wt.%, more preferably at least 0.3 wt.% of graphite (7b), is compact-pressed to form a preform (8) with a density of at least 7.3 g/cm3. In a temporary sintering process (2), the preform (8) is temporarily sintered at a preset temperature to form a metallic powder molding material (9) having a structure in which graphite still remains in a metal powder grain boundary. In a re-compression process (3), the metallic powder molding material (9) is re-compression-molded to obtain a re-compression molded body (10). In a re-sintering process (4), the re-compression-molded body (10) is re-sintered to obtain a sintered body (11). In a heat treating process (5), the sintered body (11) is heat-treated to obtain a heat-treated sintered body (11).

公开(公告)号：EP1985718A4

公开(公告)日：2009-09-16

申请号：EP07714628

申请日：2007-02-14

Applicant: JFE PREC CORP ,  JFE STEEL CORP

Inventor： TERAO HOSHIAKI ,  OTA HIROKI ,  KOBIKI HIDEAKI ,  UENOSONO SATOSHI

IPC: C22C9/00 ,  B21B3/00 ,  B22F3/26 ,  C22C1/08 ,  C22C27/06 ,  H01L23/373

CPC classification number: H01L23/3736 ,  B21B3/00 ,  B22F2003/248 ,  B22F2998/10 ,  C22C1/0425 ,  C22C1/0433 ,  C22C9/00 ,  C22C27/06 ,  C22C30/02 ,  C22C47/14 ,  C22C49/10 ,  C22F1/08 ,  C22F1/11 ,  H01L21/4871 ,  H01L2924/0002 ,  B22F3/11 ,  B22F3/26 ,  B22F3/18 ,  B22F3/24 ,  H01L2924/00

Abstract: In a Cr-Cu alloy that is formed by powder metallurgy and contains a Cu matrix and flattened Cr phases, the Cr content in the Cr-Cu alloy is more than 30% to 80% or less by mass, and the average aspect ratio of the flattened Cr phases is more than 1.0 and less than 100. The Cr-Cu alloy has a small thermal expansion coefficient in in-plane directions, a high thermal conductivity, and excellent processibility. A method for producing the Cr-Cu alloy is also provided. A heat-release plate for semiconductors and a heat-release component for semiconductors, each utilizing the Cr-Cu alloy, are also provided.

公开(公告)号：EP0913220A4

公开(公告)日：2006-04-12

申请号：EP98909734

申请日：1998-03-18

Applicant: JFE STEEL CORP

Inventor： OZAKI YUKIKO ,  UENOSONO SATOSHI ,  OGURA KUNIAKI

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

CPC classification number: B22F1/0062 ,  B22F1/0059 ,  B22F1/0077 ,  B22F1/0096 ,  B22F2998/00 ,  C22C33/0207

Abstract: An iron base powder mixture capable of providing excellent fluidity at room temperature and in a warm state and reducing an extruding force in molding and having improved moldability; a method of production of this mixture; and a method of production of a high density molded article by using the mixture. The iron base powder mixture contains iron base powder, a lubricant and alloying powder, and at least one of the components is coated with at least one surface treating agent selected from the group consisting of organoalkoxysilanes, organosilazanes, titanate coupling agents and fluorocoupling agents. The iron base powder mixture is press-molded at a temperature higher than the lowest melting point but lower than the highest melting point of the lubricants contained in the mixture.

公开(公告)号：DE60142015D1

公开(公告)日：2010-06-17

申请号：DE60142015

申请日：2001-08-30

Applicant: JFE STEEL CORP ,  HITACHI LTD

Inventor： NAKAMURA NAOMICHI ,  UENOSONO SATOSHI ,  UNAMI SHIGERU ,  FUJINAGA MASASHI ,  YOSHIMURA TAKASHI ,  IIJIMA MITSUMASA ,  KOIZUMI SHIN ,  ANMA HIROYUKI ,  HATAI YASUO

IPC: B22F3/12 ,  C22C33/02 ,  B22F3/10

公开(公告)号：SE528421C2

公开(公告)日：2006-11-07

申请号：SE0402002

申请日：2004-08-11

Applicant: JFE STEEL CORP

Inventor： UNAMI SHIGERU ,  NAKAMURA NAOMICHI ,  UENOSONO SATOSHI

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

公开(公告)号：DE60111156T2

公开(公告)日：2005-10-20

申请号：DE60111156

申请日：2001-03-23

Applicant: JFE STEEL CORP

Inventor： OZAKI YUKIKO ,  UENOSONO SATOSHI ,  UNAMI SHIGERU

IPC: C10M129/40 ,  B22F1/00 ,  B22F3/02 ,  B22F3/035 ,  B30B15/00 ,  C10M103/02 ,  C10M103/06 ,  C10M129/44 ,  C10M133/06 ,  C10M133/16 ,  C10M133/42 ,  C10M143/02 ,  C10M143/04 ,  C10M145/14 ,  C10M147/02 ,  C10M149/18 ,  C10N10/02 ,  C10N10/04 ,  C10N10/12 ,  C10N20/06 ,  C10N40/36 ,  C22C33/02 ,  B21J3/00 ,  C10M171/00

Abstract: A manufacturing method for high-density iron-based powder compacts is disclosed. The temperature of the die is adjusted at ordinary temperature or at a predetermined temperature by preheating. A lubricant for die lubrication prepared by mixing at least two different lubricants having melting points higher than a predetermined temperature of the compaction pressure is sprayed at the upper part of the die and is introduced into the die and adhered by electrification to the surface of the die. The resulting die is filled with an iron-based mixed powder including a lubricant and molding is performed at ordinary temperature or at a temperature raised by heating. The at least two different lubricants having melting points higher than the predetermined temperature of the compaction pressure are preferably at least two materials selected from at least one of the following groups: metallic soaps, amide-based waxes, polyamides, polyethylenes, polypropylenes, polymers comprised of acrylic acid esters, polymers having methacrylic acid ester, plastics including fluorine and lubricants having layered crystal structures.

公开(公告)号：DE69819384T2

公开(公告)日：2004-09-09

申请号：DE69819384

申请日：1998-02-24

Applicant: JFE STEEL CORP

Inventor： UENOSONO SATOSHI ,  OGURA KUNIAKI ,  YANG JIBIN

IPC: B22F9/08 ,  B22F1/00 ,  B22F5/00 ,  C22C33/02 ,  C22C38/16

Abstract: An iron based powder mixture for powder metallurgy is provided which can produce a sintered material having by far higher machinability and sliding properties than conventional sintered materials, and also a sintered material containing alloy elements but having adaptability to sizing even after sintering; it comprises an atomized iron powder comprising S in a content of 0.03 to 0.30 wt%, Mn in a content of 0.05 to 0.40 wt% and the balance Fe and incidental impurities, to which is added one or more than one B-containing compound powder selected from boron nitride (BN), boric acid (H3BO3), boron oxide (B2O3) and the like in an amount of 0.001 to 0.3 wt% expressed as B, and incorporated with an MnS powder in an amount of 0.05 to 1.0 wt%, optionally alloyed partially with or prealloyed with Ni, Mo and Cu.

公开(公告)号：SE0303372D0

公开(公告)日：2003-12-16

申请号：SE0303372

申请日：2003-12-16

Applicant: JFE STEEL CORP

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

IPC: B22F1/02 ,  H01F1/06 ,  H01F1/147 ,  H01F1/153 ,  H01F1/24 ,  H01F

Abstract: This invention provides a metal powder for powder magnetic cores, which have good insulation performance and high magnetic flux density, and which is favorable 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 material. 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：CA2429093A1

公开(公告)日：2003-11-21

申请号：CA2429093

申请日：2003-05-20

Applicant: JFE STEEL CORP

Inventor： UENOSONO SATOSHI ,  OZAKI YUKIKO ,  UNAMI SHIGERU

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

Abstract: The surface of the body of powder additive for use in powder metallurgy is coated with an organic binder, thereby obtaining powder additive to cause adhesion of the powder additive to the surface of iron-based powder by the organic binder, thereby providing a powder additive with no segregation of components and excellent flowability and compression, and an iron-based powder mixture manufactured by mixing the powder additive and the iron-based powder.