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1. 发明专利

JP2009052136A Hot-rolled shaped steel for ships, and method for production of the same 有权
标题翻译：用于船舶的热轧成型钢及其制造方法
公开(公告)号：JP2009052136A
公开(公告)日：2009-03-12
申请号：JP2008178598
申请日：2008-07-09
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , SUZUKI SHINICHI , SHIKAUCHI NOBUO , KOBAYASHI KAZUTAKA , SHIOTANI KAZUHIKO
IPC分类号： C22C38/00 , B21B1/09 , B21B1/092 , B21B1/095 , C21D8/00 , C22C38/38 , C22C38/60 , C23F11/00
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a hot-rolled shaped steel for ships, which exhibits excellent corrosion resistance even in a severe corrosive environment, e.g. for ballast tanks of ships, and which has strength to be YP of 315 MPa or above and is used for a longitudinal member (longeron) or the like. SOLUTION: The hot-rolled shaped steel is produced by: heating a steel raw material containing, by mass%, 0.03-0.25% C, 0.05-0.50% Si, 0.1-2.0% Mn, ≤0.025% P, ≤0.01% S, 0.005-0.10% Al, 0.01-1.0% W, ≥0.01% but 3 or below is 10-80% and the rolling finish temperature is (Ar 3 -30°C) to (Ar 3 -180°C); and then standing the rolled steel to cool. The obtained shaped steel has a microstructure comprising both ferrite containing processed ferrite, and pearlite. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了廉价地提供一种用于船舶的热轧成形钢，即使在严酷的腐蚀性环境下也能显示出优异的耐腐蚀性。用于船舶的压载舱，其强度为315MPa或更高的YP，并用于纵向构件（龙门）等。热轧成形钢的制造方法是，以质量％计含有0.03-0.25％C，0.05-0.50％Si，0.1-2.0％Mn，≤0.025％P，≤3.0％的钢原料 0.01％S，0.005-0.10％Al，0.01-1.0％W，≥0.01％，但<0.20％Cr和0.001-0.008％N，温度为1000至1350℃; 对材料进行热轧，使得Ar 3 以下的温度下的累积压下率为10-80％，轧制终轧温度为（Ar 3 -30 ℃）至（Ar 3 -180℃）; 然后站在轧制的钢上冷却。得到的成形钢具有包含含铁素体的铁素体和珠光体的微结构。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007216251A Unequal legged angle iron of unequal thickness strength of which is different in long side and short side and method of manufacturing it 审中-公开
标题翻译：不平等的角度角钢，其长度和短边不同厚度的不均匀强度及其制造方法
公开(公告)号：JP2007216251A
公开(公告)日：2007-08-30
申请号：JP2006038101
申请日：2006-02-15
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KOBAYASHI KAZUTAKA , INOUE KAZUHIKO
IPC分类号： B21B1/09 , B21B1/08
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an unequal legged angle iron of unequal thickness in which the product strain is reduced and which has strength difference between the web and the flange in the unequal legged angle iron of the unequal thickness which is different in the thickness and the width of the web and the flange. SOLUTION: By performing the controlled cooling of the flange (the short side) part while restraining the rolled stock of the unequal legged angle iron of the unequal thickness in every pass with a side guide in the front and the rear of an intermediate rolling mill which is arranged in the early stage of a finishing mill and the surface temperature of the flange (the short side) part in the front of the finishing mill is taken as 800-600°C. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造不等厚度的不等长的角铁的方法，其中产品应变减小，并且在不等厚度的不等长的角钢中具有腹板和凸缘之间的强度差这在幅材和凸缘的厚度和宽度上是不同的。
解决方案：通过在每次通过中限制不相等厚度的不平等角钢的轧制坯料，通过在中间部分的前后的侧向引导件中执行法兰（短边）部分的受控制冷却在精轧机的初期配置的轧机，精轧机前面的法兰（短边）部的表面温度为800〜600℃。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2004114160A Rolling method for shaped steel 审中-公开
标题翻译：成型钢的轧制方法
公开(公告)号：JP2004114160A
公开(公告)日：2004-04-15
申请号：JP2003401293
申请日：2003-12-01
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： TAKENOUCHI EIJI , UDAGAWA TATSURO , KOBAYASHI KAZUTAKA , SEGAWA TAKAMI
IPC分类号： B21B1/08
摘要： PROBLEM TO BE SOLVED: To provide the rough rolling method for the shaped steel which can control an elongated bellows-like shape produced at the end portion of a rolled material in the last rolling stage following the rough rolling or in the intermediate rolling stage preceding the last rolling stage.
SOLUTION: In the rolling method which produces a shaped steel product by rolling a workpiece having rectangular section, the rough rolling process which can perform at least more than single pass level rolling and cross direction rolling is provided and, by estimating an ideal end shape in the rough rolling process from a difference in rolling reduction applied to each section of the rolled material in the shape rolling following the rough rolling process, the rough rolling is performed so that the workpiece may have such ideal end shape as is estimated.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供可以控制在粗轧后的最后轧制阶段或中间轧制中在轧制材料的端部处产生的细长的波纹管状的成形钢的粗轧方法在最后一个滚动阶段之前的阶段。解决方案：在通过轧制具有矩形截面的工件来生产成形钢产品的轧制方法中，提供可以执行至少大于单程级轧制和横向轧制的粗轧工艺，并且通过估计理想在粗轧工序中，从粗轧工序中的轧制材料的各部分的轧制压差不同，进行粗轧，使得工件可以具有如所估计的理想的端部形状。版权所有（C）2004，JPO

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