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220 条记录 (耗时 0.019 秒)

    PRODUCTION METHOD OF DIRECTIONAL ELECTROMAGNETIC STEEL SHEET OF LOW TEMPERATURE SLAB HEATING SYSTEM
    173.
    发明公开
    PRODUCTION METHOD OF DIRECTIONAL ELECTROMAGNETIC STEEL SHEET OF LOW TEMPERATURE SLAB HEATING SYSTEM 失效
    钢与展望磁化使用低BRAMMENAUFHEIZTEMPERATUREN方法

    公开(公告)号：EP0709470A1

    公开(公告)日：1996-05-01

    申请号：EP95900316.1

    申请日：1994-11-09

    申请人： POHANG IRON & STEEL CO., LTD. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

    发明人： CHOI, Gyu Seung, Res.Inst.of Ind.Science & Tech ,  LEE, Chung San, Res.Inst.of Ind. Science & Tech ,  WOO, Jong Soo, Res. Inst.of Ind. Science & Tech. ,  HONG, Byung D., Res. Inst. of Ind.Science & Tech.

    IPC分类号： C21D8/12

    CPC分类号： C22C38/02 ,  C21D3/04 ,  C21D8/1205 ,  C21D8/1266 ,  G06T9/004

    摘要： This invention relates to a production method of a directional electromagnetic steel sheet used as a core material for a transformer, a motor, a generator, and other electromagnetic appliances. A component system is designed so that a directional electromagnetic steel sheet of a conventional system is heat-treated at approximately 1,250 to 1,300°C which is the same slab heating temperature as in the treating condition of general steels, and is then hot rolled. In this way, the present invention only requires operation in existing production processes without reinforcing the installation or establishing a new one, and stably forms secondary recrystallization in the (110) [001] orientation by securing stably a grain growth restriction force. Therefore, the present invention provides an improved directional electromagnetic steel sheet production method in which a preliminary annealing step is omitted, decarbonization/annealing is carried out at an intermediate thickness and machining energy at a final rolling step is lowered, so as to obtain stable magnetic characteristics. The gist of the present invention resides in a method of producing a directional electromagnetic steel sheet comprising hot rolling, after heating, a slab having a composition consisting, in terms of wt.%, of 0.035 to 0.050 % of C, 2.9 to 3.3 % of Si, not greater than 0.015 % of P, 0.011 to 0.017 % of dissolved Al, 0.0080 to 0.012 % of N, not greater than 0.007 % of S, 0.06 to 0.18 % of Ni+Cr, not greater than 0.32 % of Mn satisfying the condition of Mn/S: 20 or more, not greater than 0.6 % of Cu satisfying the condition Cu/Mn: 1.5 or more, and the balance of Fe, at 1,250 to 1,320 °C, regulating the rolled sheet to a final thickness by two cold rolling operations including an intermediate decarbonization/annealing without conducting annealing of the hot rolled sheet, then effecting intermediate annealing and annealing using MgO as the principal component, applying a separating agent, and thereafter conducting final finish annealing to produce a directional electromagnetic steel sheet having excellent magnetic characteristics.

    摘要翻译： 本发明涉及用作芯材料用于变压器，电动机，发电机，和其它电磁设备方向性电磁钢板的制造方法。 A组分系统设计成没有一个传统的系统的定向性电磁钢板进行热处理在约1250至1300°C所有这是相同的板坯加热温度在一般钢的处理条件，然后热轧。 以这种方式，本发明仅需要在现有的生产工艺没有增强安装或建立一个新的工作，并稳定地通过确保Ä001Ü稳定晶粒生长限制力形成二次再结晶在（110）取向。 因此，本发明提供了改进的电磁定向钢板制造方法，其中，省略了初步退火步骤，脱碳/退火在在中间厚度和加工能量开展在最终轧制步骤被降低，以便获得稳定的磁 特点。 本发明的要点在于在制造方向性电磁钢板，其包括热轧的方法，在加热之后，具有到C的0.050％的组成由......组成，以重量％，0.035术语中，板坯2.9至3.3％ 的Ni +的Cr，不大于0.32％的Mn，18％为Si，不大于0.015％的P，熔解Al的0.011〜0.017％以下，N，S不大于0.007％，12点06分至00 0.0080〜0.012％的 满足的Mn / S的条件：20以上，铜的不大于0.6％，满足条件铜/锰：1.5以上，和余量的Fe组成，在1250至1320℃时，热轧板调节至最终 由两个冷轧操作，包括在中间脱碳/退火不进行热轧板的退火，然后 - 影响使用MgO作为主成分的中间退火和退火，施加分离剂，然后进行最终成品退火，以产生定向电磁厚度 钢玉树 具有优异磁特性吨。

    CHAOS SCREW FOR SINGLE SCREW EXTRUDER
    174.
    发明公开
    CHAOS SCREW FOR SINGLE SCREW EXTRUDER 失效
    混沌螺丝螺丝

    公开(公告)号：EP0708703A1

    公开(公告)日：1996-05-01

    申请号：EP95918205.0

    申请日：1995-05-10

    申请人： POHANG IRON & STEEL CO., LTD. ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY

    发明人： KWON, Tai Hun Research Institute of Ind. Science ,  KIM, See Jo Research Institute of Ind. Science

    IPC分类号： B29C47 ,  B01F7

    CPC分类号： B29C47/605 ,  B29C47/0011

    摘要： A chaos screw for a single screw extruder is disclosed, in which the structure is simple, and a superior mixing capability is provided without much modifying the existing structure, thereby realizing an improved chaotic mixing characteristic. The chaos screw includes: a plurality of screw flights for moving forward an extrusion material; a plurality of barriers provided between said screw flights; the barriers having a periodic structure (a)(b)-(a)(b)-(a)(b).... with barrier existing zones and barrier non-existing zones periodically repeated; and the barriers being formed on the whole melt conveying region in which the screw flights are formed, whereby a chaotic mixing of the extrusion material is realized. According to the present invention, there is obtained an effect such that, with a slight modification of the structure, a superior material mixing capability is obtained.

    Verfahren zur Herstellung von flüssigem Roheisen oder flüssigen Stahlvorprodukten
    175.
    发明公开
    Verfahren zur Herstellung von flüssigem Roheisen oder flüssigen Stahlvorprodukten 失效
    Verfahren zur Herstellung vonflüssigemRoheisen oderflüssigenStahlvorprodukten。

    公开(公告)号：EP0594557A1

    公开(公告)日：1994-04-27

    申请号：EP93890205.3

    申请日：1993-10-20

    申请人： VOEST-ALPINE Industrieanlagenbau GmbH ,  RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, INCORPORATED FOUNDATION ,  POHANG IRON & STEEL CO., LTD.

    发明人： Kepplinger, Werner, Dipl.-Ing. Dr. ,  Matzawrakos, Panajiotis, Dipl.-Ing. ,  Schenk, Johannes, Dipl.-Ing. Dr. ,  Siuka, Dieter, Dipl.-Ing. ,  Böhm, Christian, Dipl.-Ing.

    IPC分类号： C21B13/00

    CPC分类号： C21B13/14 ,  C21B13/002 ,  C21B2100/282 ,  C21B2100/66 ,  Y02P10/136

    摘要： Ein Verfahren zur Herstellung von flüssigem Roheisen aus von Eisenerzen und Zuschlägen gebildeten, zumindest teilweise einen Feinanteil aufweisenden Einsatzstoffen, wobei die Einsatzstoffe in mindestens einer Reduktionszone (18) zu Eisenschwamm direkt reduziert werden, der Eisenschwamm in einer Einschmelzvergasungszone (I bis IV) unter Zufuhr von Kohlenstoffträgern und sauerstoffhältigem Gas erschmolzen und ein Reduktionsgas erzeugt wird, welches in die Reduktionszone (18) eingeleitet, dort umgesetzt und als Exportgas abgezogen wird, soll dahingehend verbessert werden, daß der Einsatz von Feinerz in wirtschaftlicher Weise möglich ist.
    Dies geschieht dadurch,

    - daß vorwiegend hämatitische und/oder magnetitische Feinerze und/oder Erzstäube in einer Vorwärmzone (2) einer Vorwarmung im Wirbelschichtverfahren unterzogen werden,
    - daß die so vorgewärmten Einsatzstoffe in mindestens einer nachgeordneten Reduktionszone im Wirbelschichtverfahren weitgehend fertig reduziert werden,
    - worauf die Einsatzstoffe mittels einer Zwangsförderung in das Fließbett (II, III) der Einschmelzvergasungszone (I bis IV) chargiert und dort erschmolzen werden (Fig. 1).

    摘要翻译： 由铁矿石和助熔剂形成的至少部分含有细粒部分的原料生产熔融生铁的方法，其中将进料在至少一个还原区（18）中直接还原成海绵铁，海绵铁是 在加入碳载体和含氧气体的熔融气化区（I至IV）中熔融，并且产生引入还原区（18）中并在其中转化并作为输出气体除去的还原气体 可以以经济的方式改善细矿石的使用。 当在预热区域（2）中主要将赤铁矿和/或磁铁矿细矿石和/或矿石粉末在流化床方法中进行预热时，这是实现的， - 如此预热的进料材料在至少一个 通过流化床方法进行下游还原区，然后通过强制输送到熔融气化区（I至IV）的流化床（II，III）并在其中熔炼（图1）将进料物质充入。