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    Metal powders and methods for producing the same
    124.
    发明申请
    Metal powders and methods for producing the same 有权
    金属粉末及其制造方法

    公开(公告)号：US20060219056A1

    公开(公告)日：2006-10-05

    申请号：US11092023

    申请日：2005-03-29

    Applicant: Steven Larink

    Inventor： Steven Larink

    IPC: B22F9/08

    CPC classification number: B22F9/026 ,  B22F1/0074 ,  B22F1/0077 ,  B22F2998/00 ,  B22F2201/05 ,  B22F2202/01 ,  B22F3/115

    Abstract: A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product.

    Abstract translation: 金属粉末制品的制造方法包括：提供前体金属粉末; 将前体金属粉末与液体组合以形成浆料; 将浆料送入脉动的热气流中; 并回收金属粉末产品。

    Method for manufacturing soft magnetic material
    125.
    发明申请
    Method for manufacturing soft magnetic material 审中-公开
    软磁材料制造方法

    公开(公告)号：US20060027950A1

    公开(公告)日：2006-02-09

    申请号：US11195848

    申请日：2005-08-03

    Applicant: Masahiro Ishitani ,  Yoshiaki Nishijima ,  Yurio Nomura ,  Kouichi Yamaguchi ,  Yuichi Ishikawa ,  Hidekazu Hayama

    Inventor： Masahiro Ishitani ,  Yoshiaki Nishijima ,  Yurio Nomura ,  Kouichi Yamaguchi ,  Yuichi Ishikawa ,  Hidekazu Hayama

    IPC: C04B33/32 ,  C04B33/36 ,  C04B35/64

    CPC classification number: H01F41/0246 ,  B22F1/0088 ,  B22F2999/00 ,  H01F1/24 ,  H01F1/33 ,  B22F2201/05

    Abstract: The invention provides a method for manufacturing a soft magnetic material, wherein an Fe—Si alloy powder is heated in a weakly oxidizing atmosphere to form a SiO2 oxide film on the surface, and the powder is then press-molded and fired in a weakly oxidizing atmosphere to obtain a sintered product. By performing the surface oxidizing step in a weakly oxidizing atmosphere such as water vapor, Si is selectively oxidized to form a thin oxide film with high electrical resistance. Furthermore, by firing the molded product in a weakly oxidizing atmosphere, the sintering can be performed while the oxide film, in which cracks and the like are generated at the press-molding, is repaired.

    Abstract translation: 本发明提供了一种制造软磁性材料的方法，其中Fe-Si合金粉末在弱氧化气氛中被加热以在表面上形成SiO 2氧化物膜，然后将粉末压制 在弱氧化气氛中成型并烧制，得到烧结体。 通过在诸如水蒸气的弱氧化气氛中进行表面氧化步骤，选择性地氧化Si以形成具有高电阻的薄氧化膜。 此外，通过在弱氧化气氛中烧成模制品，可以进行烧结，同时修复在压制成型时产生裂纹等的氧化膜。

    Oxidation, carburization and/or sulfidation resistant iron aluminide alloy
    128.
    发明授权
    Oxidation, carburization and/or sulfidation resistant iron aluminide alloy 有权
    氧化，渗碳和/或耐硫化铁铝合金

    公开(公告)号：US06607576B1

    公开(公告)日：2003-08-19

    申请号：US09172375

    申请日：1998-10-14

    Applicant: Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

    Inventor： Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

    IPC: C22C3302

    CPC classification number: C22C33/0278 ,  B22F3/23 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0491 ,  C22C38/06 ,  B22F3/04 ,  B22F3/20 ,  B22F3/1208 ,  B22F3/18 ,  B22F3/10 ,  B22F9/082 ,  B22F3/15 ,  B22F2201/05

    Abstract: The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, ≦1% Cr and either ≧0.05% Zr or Zro2 stringers extending perpendicular to an exposed surface of the heating element or ≧0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B. ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, ≦3% Cu, balance Fe.

    Abstract translation: 本发明一般涉及可用作电阻加热元件的含铝铁基合金。 含铝铁基合金具有改善的室温延展性，电阻率，循环耐疲劳性，耐高温氧化性，低，高温强度和/或耐高温下垂的能力。 该合金具有完全不含奥氏体的铁素体组织，其重量％包括超过4％的Al，≤1％的Cr和> = 0.05％的Zr或Zro2桁条，垂直于加热元件的暴露表面延伸，或 > = 0.1％氧化物分散质颗粒。 该合金可以含有14-32％的Al，<= 2％Ti，<= 2％Mo，≤1％Zr，≤1％C，<= 0.1％B. <= 30％氧化物分散质和/或电 绝缘或导电共价陶瓷颗粒，<= 1％稀土金属，<= 1％氧，<= 3％Cu，余量为Fe。

    Iron aluminide useful as electrical resistance heating elements
    129.
    发明授权
    Iron aluminide useful as electrical resistance heating elements 有权
    具有氧化物分散体的铁铝化物片的加工

    公开(公告)号：US06280682B1

    公开(公告)日：2001-08-28

    申请号：US09399355

    申请日：1999-09-20

    Applicant: Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

    Inventor： Vinod K. Sikka ,  Seetharama C. Deevi ,  Grier S. Fleischhauer ,  Mohammad R. Hajaligol ,  A. Clifton Lilly, Jr.

    IPC: B22F102

    CPC classification number: C22C33/0278 ,  B22F3/23 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0491 ,  B22F3/04 ,  B22F9/082 ,  B22F3/1208 ,  B22F3/20 ,  B22F3/15 ,  B22F3/18 ,  B22F3/10 ,  B22F2201/05

    Abstract: The invention relates generally to aluminum containing iron-base alloys useful as electrical resistance heating elements. The aluminum containing iron-base alloys have improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The alloy has an entirely ferritic microstructure which is free of austenite and includes, in weight %, over 4% Al, ≦1% Cr and either ≧0.05% Zr or ZrO2 stringers extending perpendicular to an exposed surface of the heating element or ≧0.1% oxide dispersoid particles. The alloy can contain 14-32% Al, ≦2% Ti, ≦2% Mo, ≦1% Zr, ≦1% C, ≦0.1% B, ≦30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, ≦1% rare earth metal, ≦1% oxygen, ≦3% Cu, balance Fe.

    Abstract translation: 本发明一般涉及可用作电阻加热元件的含铝铁基合金。 含铝铁基合金具有改善的室温延展性，电阻率，循环耐疲劳性，耐高温氧化性，低，高温强度和/或耐高温下垂的能力。 该合金具有完全不含奥氏体的铁素体组织，其重量％包括超过4％的Al，≤1％的Cr和> = 0.05％的Zr或ZrO2桁条，其垂直于加热元件的暴露表面延伸，或 > = 0.1％氧化物分散质颗粒。 该合金可以含有14-32％的Al，<= 2％Ti，<= 2％Mo，≤1％Zr，≤1％C，<= 0.1％B，<= 30％氧化物分散质和/或电 绝缘或导电共价陶瓷颗粒，<= 1％稀土金属，<= 1％氧，<= 3％Cu，余量为Fe。

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