中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

64 records (took 0.025 seconds)

    MIXED POWDER FOR POWDER METALLURGY, METHOD OF MANUFACTURING SAME, AND METHOD OF MANUFACTURING IRON-BASED POWDER SINTERED BODY
    1.
    发明申请
    MIXED POWDER FOR POWDER METALLURGY, METHOD OF MANUFACTURING SAME, AND METHOD OF MANUFACTURING IRON-BASED POWDER SINTERED BODY 审中-公开
    用于粉末冶金的混合粉末，其制造方法以及制造基于铁的粉末烧结体的方法

    公开(公告)号：WO2015008406A8

    公开(公告)日：2015-11-12

    申请号：PCT/JP2014000342

    申请日：2014-01-23

    Applicant: JFE STEEL CORP

    Inventor： NUSHIRO KOUICHI ,  MAETANI TOSHIO ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

    IPC: B22F1/00

    CPC classification number: B22F1/007 ,  B22F1/0059 ,  B22F3/004 ,  B22F3/16 ,  B22F9/04 ,  C22C33/02

    Abstract: According to the present invention, a machining-improving powder is a crystalline layered alkali silicate heat-treated at a temperature range of 400-1100°C, and the mixture constituting the machining-improving powder is set such that an iron-based powder takes up 0.01-1.0 mass% in relation to the total amount of alloy powder and machining-improving powder. As a result, not only can sintering of a compact be performed in a sintering furnace without having any negative effects on the environment inside the furnace, but it is also possible to attain a mixed powder for powder metallurgy by which it is possible to obtain a sintered body having both exceptional lathing properties and exceptional drilling properties.

    Abstract translation: 根据本发明，加工改善粉末是在400-1100℃的温度范围内热处理的结晶层状碱性硅酸盐，构成加工改性粉末的混合物的设定使得铁基粉末 相对于合金粉末和机械改进粉末的总量相对于0.01-1.0质量％。 结果，不仅可以在烧结炉中进行烧结而不会对炉内的环境产生任何负面影响，而且可以获得粉末冶金用混合粉末，通过该粉末冶金可以获得 具有特殊的车床特性和卓越的钻孔性能的烧结体。

    IRON-BASED MIXED POWDER FOR POWDER METALLURGY
    3.
    发明专利
    IRON-BASED MIXED POWDER FOR POWDER METALLURGY 未知

    公开(公告)号：CA2762898C

    公开(公告)日：2015-11-24

    申请号：CA2762898

    申请日：2010-05-27

    Applicant: JFE STEEL CORP

    Inventor： KAWANO TAKASHI ,  UNAMI SHIGERU ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

    IPC: B22F1/00 ,  C22C38/00

    Abstract: In an iron-based powder, 0.01% to 5.0% by mass of a flaky powder having an average particle size of longitudinal size of 100 µm or less, a thickness of 10 µm or less, and an aspect ratio (longitudinal size-to-thickness ratio) of 5 or more with respect to the iron-based mixed powder is contained, whereby the flowability of an iron-based mixed powder is increased, the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost.

    IRON-BASED MIXED POWDER FOR POWDER METALLURGY
    4.
    发明专利
    IRON-BASED MIXED POWDER FOR POWDER METALLURGY 未知

    公开(公告)号：CA2766042A1

    公开(公告)日：2010-12-29

    申请号：CA2766042

    申请日：2010-06-25

    Applicant: JFE STEEL CORP

    Inventor： KAWANO TAKASHI ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

    IPC: B22F1/00 ,  C22C38/00

    Abstract: The inclusion of 0.01-5.0% by mass of oxide particles with an average particle diameter of 0.5µm or more in an iron-based mixed powder increases the liquidity of said iron-based mixed powder, improves the green density of the green compact, and greatly reduces the post compacting ejection force, thus improving the quality of goods and a reducing manufacturing costs.

    IRON-BASED MIXED POWDER FOR POWDER METALLURGY
    7.
    发明专利
    IRON-BASED MIXED POWDER FOR POWDER METALLURGY 未知

    公开(公告)号：CA2766042C

    公开(公告)日：2014-03-25

    申请号：CA2766042

    申请日：2010-06-25

    Applicant: JFE STEEL CORP

    Inventor： KAWANO TAKASHI ,  ONO TOMOSHIGE ,  OZAKI YUKIKO

    IPC: B22F1/00 ,  C22C38/00

    Abstract: In an iron-based powder, 0.01% to 5.0% by mass of oxide particles having an average size of 0.5 µm or more are contained, whereby the flowability of an iron-based mixed powder is increased and thereby the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost.

    IRON-BASED POWDER FOR POWDER METALLURGY
    8.
    发明专利
    IRON-BASED POWDER FOR POWDER METALLURGY 未知

    公开(公告)号：CA2699033C

    公开(公告)日：2013-05-28

    申请号：CA2699033

    申请日：2008-09-09

    Applicant: JFE STEEL CORP

    Inventor： ONO TOMOSHIGE ,  UNAMI SHIGERU ,  KAWANO TAKASHI ,  OZAKI YUKIKO ,  FUJIMOTO KYOKO

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

    Abstract: Disclosed is an iron-based powder for powder metallurgy, which is obtained by making a flowability improver particle containing 50-100% by mass of carbon black adhere to the surface of an iron powder particle through a binder. This iron-based powder for powder metallurgy is excellent in flowability, and can be uniformly filled into a thin-walled cavity. This iron-based powder for powder metallurgy can be compacted with high ejection force, while maintaining sufficient strength for a sintered body during a sintering process that follows the compaction process.

    IRON-BASED POWDER FOR POWDER METALLURGY
    10.
    发明专利
    IRON-BASED POWDER FOR POWDER METALLURGY 未知

    公开(公告)号：CA2893945C

    公开(公告)日：2016-08-02

    申请号：CA2893945

    申请日：2013-12-24

    Applicant: JFE STEEL CORP

    Inventor： ONO TOMOSHIGE ,  OZAKI YUKIKO ,  KAWANO TAKASHI

    IPC: B22F1/00 ,  B22F1/02

    Abstract: An iron-based powder for powder metallurgy, wherein: an alloying component and/or a machinability improver are adhered to the surface of an iron powder with a binder having a melting point of 150ºC or lower; carbon black is adhered to the surface of the binder; and the amount of a free binder is adjusted to 0.02 mass% or less. In this iron-based powder, the aggregation of a lubricant is inhibited. Therefore, the iron-based powder exhibits excellent fluidity, can be uniformly filled into a thin cavity for forming a thin-wall product, permits a reduction in the withdrawal force necessitated after molding, and does not cause the strength degradation of a sintered body.

Patent Agency Ranking