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111 条记录 (耗时 0.023 秒)

    Shaft furnace condition monitoring
    1.
    发明授权
    Shaft furnace condition monitoring 有权

    公开(公告)号：US11377701B2

    公开(公告)日：2022-07-05

    申请号：US16762416

    申请日：2018-11-12

    申请人： PAUL WURTH S.A.

    发明人： Christian De Gruiter ,  Yves Heinen ,  Nicolas Maggioli ,  Paul Tockert

    IPC分类号： C21D7/10 ,  F27D1/12 ,  C21B7/10 ,  F27B3/24 ,  F27D9/00

    摘要： A shaft furnace, in particular a blast furnace, includes a metal jacket defining the furnace outer wall and a protective layer protecting the inner surface of the outer wall. At least one condition monitoring probe is arranged inside within the protective layer to monitor the latter. The condition monitoring probe is connected to a wireless module arranged outside the outer wall to transmit condition monitoring data. The wireless module is located inside a casing mounted to the outer surface of the metal jacket. The condition monitoring probe includes one or more conductive loops positioned at predetermined depths below the front face of the cooling plate body, or of the refractory lining, so that wear of the body, resp. refractory, can be detected by a change of an electrical characteristic of the loop(s) due to abrasion.

    Deformed reinforcing bar
    2.
    发明授权
    Deformed reinforcing bar 有权

    公开(公告)号：US10774534B2

    公开(公告)日：2020-09-15

    申请号：US16076779

    申请日：2017-02-08

    申请人： JFE STEEL CORPORATION

    发明人： Kiyoshi Uwai ,  Takashi Iwamoto ,  Kazukuni Hase

    IPC分类号： E04C5/06 ,  C22C38/60 ,  E04C5/03 ,  C22C38/38 ,  C21D7/10 ,  C21D8/08 ,  C21D6/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/24 ,  C22C38/26 ,  C21D9/00

    摘要： A high manganese content deformed reinforcing bar having an austenite single phase microstructure has excellent bending workability. A deformed reinforcing bar includes a chemical composition containing, in mass %, C: 0.7% or more and 1.2% or less, Si: 1.0% or less, Mn: 9% or more and 15% or less, Cr: 1.0% or less, P: 0.03% or less, and S: 0.05% or less, the balance consisting of Fe and inevitable impurities; and a microstructure comprising an austenite single phase. The ratio of the difference between the maximum and minimum hardness at a periphery of a cross-section perpendicular to the longitudinal direction with respect to a central average hardness is 15% or less. Two or more ribs extend in the longitudinal direction at equal intervals in a cross-sectional circumferential direction. The ratio of the difference between the maximum and minimum width of the ribs to the minimum width is 50% or less.

    RAIL AND METHOD FOR PRODUCING SAME
    3.
    发明申请
    RAIL AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：US20200002780A1

    公开(公告)日：2020-01-02

    申请号：US16489172

    申请日：2018-03-20

    申请人： JFE STEEL CORPORATION

    发明人： Minoru HONJO ,  Tatsumi KIMURA ,  Katsuyuki ICHIMIYA ,  Kazukuni HASE

    IPC分类号： C21D9/04 ,  C22C38/18 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D7/10 ,  C21D8/00 ,  C21D6/00 ,  B21B3/02

    摘要： A rail exhibits a high 0.2% proof stress after shipping, which is effective for improving rolling contact fatigue resistance of the rail, the rail having a chemical composition containing C: 0.70% to 0.85%, Si: 0.1% to 1.5%, Mn: 0.4% to 1.5%, P: 0.035% or less, S: 0.010% or less, and Cr: 0.05% to 1.50%, with the balance being Fe and inevitable impurities, and exhibiting, at least 90 days after a preparation date of a steel material inspection certificate of the rail which describes at least a measurement result of a 0.2% proof stress of a head of the rail, an improvement margin of a 0.2% proof stress of 40 MPa or more, relative to the 0.2% proof stress described in the steel material inspection certificate.

    Method for maunfacturing an ultra-high-tensile, stretch formed or stretch bent sheet metal product of steel
    6.
    发明申请
    Method for maunfacturing an ultra-high-tensile, stretch formed or stretch bent sheet metal product of steel 审中-公开
    用于制造超高拉伸，拉伸成形或拉伸弯曲的钢板金属制品的方法

    公开(公告)号：US20050211347A1

    公开(公告)日：2005-09-29

    申请号：US10507310

    申请日：2003-03-13

    申请人： Leif Carlsso ,  Hans Groth

    发明人： Leif Carlsso ,  Hans Groth

    IPC分类号： C21D6/04 ,  C21D7/02 ,  C21D7/10

    CPC分类号： C21D7/02 ,  C21D6/04

    摘要： A method for manufacturing an ultra-high-tensile sheet method product of steel, at which the initial work piece used is constituted of a metal work piece of iron, alloyed with chromium, nickel and carbon in predetermined proportions. The initial work piece is wholly or partially plastically cold worked by stretch forming or stretch bending at a predetermined temperature and/or deformation degree, that determines and is determining for the yield point of the final product, in providing a strong deformation hardening, that gives the final product a totally or partially many times increased strength or higher yield point, as compared to the yield point of the initial work piece.

    摘要翻译： 一种用于制造超高强度片材方法的钢的方法，其中所用的初始工件由铁，金属工件，铬，镍和碳以预定比例合金构成。 初始工件通过在预定温度和/或变形程度下的拉伸成形或拉伸弯曲进行全部或部分塑性冷加工，其确定并确定最终产品的屈服点，以提供强变形硬化， 与初始工件的屈服点相比，最终产品完全或部分地多次增加强度或更高的屈服点。

    Fracture-tough, high hardness stainless steel and method of making same
    9.
    发明授权
    Fracture-tough, high hardness stainless steel and method of making same 失效
    断裂韧性，高硬度不锈钢及其制造方法

    公开(公告)号：US5221372A

    公开(公告)日：1993-06-22

    申请号：US835616

    申请日：1992-02-13

    申请人： Gregory B. Olson

    发明人： Gregory B. Olson

    IPC分类号： C21D7/10 ,  C21D8/00 ,  C22C38/52

    CPC分类号： C22C38/52 ,  C21D7/10 ,  C21D8/005

    摘要： A cryogenically-formed and tempered stainless steel is provided having improved fracture toughness and corrosion resistance at a given hardness level, such as, for example, of at least about Rc 60 for bearing applications. The steel consists essentially of, in weight %, about 21 to about 24% Co, about 11 to about 13% Cr, about 7 to about 9% Ni, about 0.1 to about 0.5% Mo, about 0.2 to about 0.3% V, about 0.28 to about 0.32% C, and the balance iron. The steel includes a cryogenically-formed martensitic microstructure tempered to include about 5 to about 10 volume % post-deformation retained austenite dispersed therein and M.sub.2 C-type carbides, where M is Cr, Mo, V, and/or Fe, dispersed in the microstructure.

    摘要翻译： 提供一种低温成型和回火的不锈钢，其在给定的硬度水平下具有改进的断裂韧性和耐腐蚀性，例如至少约Rc 60用于轴承应用。 钢主要由重量％，约21至约24％的Co，约11至约13％的Cr，约7至约9％的Ni，约0.1至约0.5％的Mo，约0.2至约0.3％的V， 约0.28至约0.32％C，余量为铁。 该钢包括回火的低温成形马氏体组织，其包括分散在其中的约5至约10体积％的变形后残余奥氏体和M2C型碳化物，其中M是分散在微观结构中的Cr，Mo，V和/或Fe 。

    Process for the production of fine amorphous metallic wires
    10.
    发明授权
    Process for the production of fine amorphous metallic wires 失效
    生产精细非晶金属线的工艺

    公开(公告)号：US4495691A

    公开(公告)日：1985-01-29

    申请号：US362791

    申请日：1982-03-29

    申请人： Tsuyoshi Masumoto ,  Akihisa Inoue ,  Michiaki Hagiwara

    发明人： Tsuyoshi Masumoto ,  Akihisa Inoue ,  Michiaki Hagiwara

    IPC分类号： B21C1/00 ,  B21C37/04 ,  B22D11/06 ,  C21D7/10 ,  C22C45/00 ,  D01F9/08 ,  B22D11/12 ,  C22C30/00

    CPC分类号： C22C45/00 ,  B21C37/047 ,  C21D7/10 ,  Y10T29/49988

    摘要： A process for the production of a fine amorphous metallic wire is described, comprising melt-spinning an iron family element base alloy having an amorphous substance-forming ability to obtain a fine amorphous metallic wire, and passing the thus-formed fine amorphous metallic wire through a die so as to draw within an area reduction percentage range of from about 5 to about 90%. The thus-produced fine amorphous metallic wire of the iron family element base system is excellent in heat resistance, corrosion resistance, electromagnetic characteristics, and has excellent mechanical properties, such as breaking strength and a degree of drawing at break. Thus, it is very useful for various industrial materials such as electric and electronic parts, composite materials, and fibrous materials.

    摘要翻译： 描述了一种用于生产细非晶金属线的方法，其包括熔融纺丝具有无定形物质形成能力的铁族元素基体合金，以获得微细的非晶金属线，并使由此形成的细非晶金属线穿过 模具，以便在约5至约90％的面积缩小百分比范围内绘制。 由此制造的铁族元件基体系的微细非晶金属线具有优异的耐热性，耐腐蚀性，电磁特性，并且具有优异的机械性能，例如断裂强度和断裂拉伸程度。 因此，对于各种工业材料如电气和电子部件，复合材料和纤维材料是非常有用的。