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11. 发明专利

JP2010264469A METHOD FOR MANUFACTURING Cr-CONTAINING BAR STEEL 有权
标题翻译：制造含Cr钢的方法
公开(公告)号：JP2010264469A
公开(公告)日：2010-11-25
申请号：JP2009116805
申请日：2009-05-13
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： NAKAKUBO SHOHEI , TAKEDA MIKAKO , ONISHI TAKASHI , KUBOTA YOSHIHIKO , TAHIRA TOMOHIDE
IPC分类号： B21B45/00 , B21B3/00 , B21B45/04 , C22C38/00 , C22C38/58 , C22C38/60
摘要： PROBLEM TO BE SOLVED: To manufacture Cr-containing bar steel capable of improving scale strippability and excellent in surface property even in a case of the Cr-containing bar steel which contains Cr that affects the scale strippability.
SOLUTION: A method for manufacturing the Cr-containing bar steel that contains 0.10-2.0% of Cr includes: a step a for carrying out descaling to steel slab after taking out the steel slab from a heating furnace; a step b for carrying out hot rolling to the steel slab in atmospheric environment after the step a; and a step c for carrying out descaling to the steel slab after the step b. The hot rolling in the step b is performed under conditions satisfying formulas (1) and (2). In the formulas (1) and (2), R(gas constant) is 8.31×10
-3 kJ/mol*K, T is rolling temperature(°C), wherein 700≤T≤1,000, x is Cr content (mass%) of the steel slab, t is rolling time (second), wherein 20≤t≤200.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在含Cr影响规模剥离性的含铬棒钢的情况下，也可以制造能够提高规模剥离性和表面性能优异的含Cr棒钢。解决方案：含有0.10-2.0％的Cr的含铬棒钢的制造方法包括：从加热炉取出钢坯后对钢坯进行除鳞除锈的工序a; 在步骤a之后在大气环境中对钢板进行热轧的步骤b; 以及在步骤b之后对钢坯进行除鳞除锈的步骤c。步骤b中的热轧在满足公式（1）和（2）的条件下进行。在式（1）和（2）中，R（气体常数）为8.31×10 -3 kJ / mol * K，T为轧制温度（℃），其中700≤T≤1,000 ，x是钢坯的Cr含量（质量％），t是轧制时间（秒），其中20≤t≤200。版权所有（C）2011，JPO＆INPIT

12. 发明专利

JP2013006190A Rolling method of bar steel 有权
标题翻译：棒钢的轧制方法
公开(公告)号：JP2013006190A
公开(公告)日：2013-01-10
申请号：JP2011139650
申请日：2011-06-23
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KUSHIDA HITOSHI , KUBOTA YOSHIHIKO , DOI KIYOYOSHI
IPC分类号： B21B1/16 , B21C51/00
摘要： PROBLEM TO BE SOLVED: To establish a technique in which the yield improvement of front and rear end parts of a rolled material and the reduction of a miss roll that are an advantage of a continuous rolling are achieved, then the production loss by the roll substitution according to a product size change is reduced.SOLUTION: A tension is add to a rolled material between a final finishing mill (sizing mill 6) and an upstream side rolling mill (block mill 5) above the same, the roll gap of the sizing mill 6 is decreased, and a product size is changed in rolling in a continuous rolling of a bar steel that connects a preceding material of a billet extracted from a heating furnace to a succeeding material and rolls. When a tension of the inlet side of the sizing mill 6 is changed, the tension propagates to the tension between each of stand in the sizing mill 6 and the width rate in each stand decreases, and thereby even if the roll gap of the sizing mill 6 is decreased to be small, the rolled material is formed in a target shape without the biting out from a hole mold. Thus, an adjustable rolling range can be extended.
摘要翻译：要解决的问题：为了建立一种技术，其中实现了轧制材料的前端部件和后端部件的屈服改善以及作为连续轧制的优点的缺失轧辊的减少，则生产损失由根据产品尺寸变化的辊替代减少。解决方案：在最终精轧机（上浆机6）和上游侧轧机（块磨机5）之间的轧制材料上施加张力，定径轧机6的辊间隙减小，在将从加热炉提取的坯料的先前材料与后续材料连接的钢筋的连续轧制中，产品尺寸变化。当调浆机6的入口侧的张力发生变化时，张力传播到定型磨机6中的支架之间的张力，并且每个支架中的宽度速率降低，因此即使定径磨机的辊隙 6减少到小，轧制材料形成为目标形状，而不会从孔模中咬出。因此，可以延长可调节的滚动范围。版权所有（C）2013，JPO＆INPIT

13. 发明专利

JP2012240070A Method of rolling bar steel 有权
标题翻译：轧钢棒的方法
公开(公告)号：JP2012240070A
公开(公告)日：2012-12-10
申请号：JP2011110581
申请日：2011-05-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： TAKI YASUHISA , KUSHIDA HITOSHI , KUBOTA YOSHIHIKO , KINOSHITA DAISUKE
IPC分类号： B21B27/02 , B21B1/16 , B21B13/10
摘要： PROBLEM TO BE SOLVED: To reduce the variation in the dimensions and shape of a product of bar steel material after rolling by solving a problem of the twist of the bar steel material in a finish rolling apparatus.SOLUTION: The method of rolling bar steel has three rolling rolls for rolling the bar steel material W from three directions in the peripheral direction. The three rolling rolls are used for a finish rolling apparatus 6 which is provided with three or more rolling stands in which a caliber is provided on the outer peripheral surface of the rolls. The bar steel material W is made to be in a contact state more than three points for the three rolling rolls 13a-13c on the inlet side of the rolling stand 13 which is installed on the final stage of the three or more rolling stands; thereby performing the rolling of the bar steel material W.
摘要翻译：要解决的问题：通过解决精轧机中的钢筋材料的扭转问题，可以减少轧制后的钢筋材料的尺寸和形状的变化。解决方案：轧钢棒的方法具有三个轧制辊，用于沿圆周方向从三个方向滚动钢筋材W。这三个轧辊用于精轧机器6，该精轧机具备三个以上的轧机机架，在轧机的外周面上设有口径。在安装在三台以上的轧机机架的最终阶段上的轧制机架13的入口侧的三个轧制辊13a-13c，使钢筋材料W成为三点以上的接触状态。从而进行钢筋材料W的轧制。版权所有（C）2013，JPO＆INPIT

14. 发明专利

JP2011177775A Manufacturing method of bar steel 有权
标题翻译：钢铁的制造方法
公开(公告)号：JP2011177775A
公开(公告)日：2011-09-15
申请号：JP2010046903
申请日：2010-03-03
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KUSHIDA HITOSHI , KUBOTA YOSHIHIKO , TAHIRA TOMOHIDE , TAKEDA MIKAKO
IPC分类号： B21B3/00 , B21B1/16 , C22C38/00 , C22C38/18
摘要： PROBLEM TO BE SOLVED: To provide an effective method which can suppress surface decarburization and can manufacture a bar steel excellent in peelability of scale. SOLUTION: The method is a method for manufacturing the bar steel by rolling a steel containing 0.10 mass% or more of Si and/or 0.1 mass% or more of Cr. Prior to hot rolling by a plurality of rolling mills, the steel is heated to the surface temperature of 900°C or lower in a heating furnace, and then rolled under a condition that cooling speed from the extraction from the heating furnace till the first pass of hot rolling is controlled at 30°C/second or less. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制表面脱碳并能够制造出具有良好剥离性的钢筋的有效的方法。解决方案：该方法是通过轧制含有0.10质量％以上的Si和/或0.1质量％以上的Cr的钢来制造棒钢的方法。在通过多台轧机进行热轧之前，将钢在加热炉中加热到900℃以下的表面温度，然后在从加热炉的提取到第一次通过的冷却速度的条件下进行轧制的热轧控制在30℃/秒以下。版权所有（C）2011，JPO＆INPIT

15. 发明专利

JP2011025308A Method for manufacturing steel bar 审中-公开
标题翻译：钢棒制造方法
公开(公告)号：JP2011025308A
公开(公告)日：2011-02-10
申请号：JP2009215909
申请日：2009-09-17
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KUSHIDA HITOSHI , ISHIGAMI OSAMU , KOIZUMI FUJIO , OKOCHI NORIO , MIYAZAKI SHOJI , KUBOTA YOSHIHIKO
IPC分类号： B21F1/02 , B21D3/02
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel bar capable of preventing the occurrence of twist in a wire rod drawn from a coil, and straightening the bend of the wire rod in the direction where straightening is needed, securely, at room temperature.
SOLUTION: In a method for manufacturing a steel bar, a steel bar 2 is manufactured after cold straightening is performed on a wire rod 1 drawn from a coil 3 into which the wire rod 1 is spirally wound by hot rolling. In the method, cold straightening is performed in the following way: a piece of the wire rod 1 drawn from the coil 3 is held to restrict twist by a pair of pinch rolls 4 disposed right behind the position where the wire rod 1 is drawn from the coil 3, and, the bend of the wire rod 1 whose twist is restricted is straightened by plurality of straightening rollers 5 arranged in the downstream side of the straightening rollers.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够防止从线圈拉出的线材发生扭曲的钢筋的制造方法，并且在需要矫直的方向上矫正线材的弯曲，在室温下。解决方案：在钢棒的制造方法中，在从通过热轧螺旋卷绕的线圈3的线材1上进行冷拉矫后，制造钢棒2。在该方法中，以如下方式进行冷矫直：从线圈3拉出的线材1被保持以通过一对夹送辊4进行扭转，所述夹送辊4设置在从线材1被拉出的位置的正后方线圈3，并且扭曲受限的线材1的弯曲部被设置在矫直辊的下游侧的多个矫直辊5矫直。版权所有（C）2011，JPO＆INPIT

16. 发明专利

JP2011020124A Method for rolling bar steel rolling stock 有权
标题翻译：轧钢棒轧制方法
公开(公告)号：JP2011020124A
公开(公告)日：2011-02-03
申请号：JP2009164899
申请日：2009-07-13
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KUSHIDA HITOSHI , DOBASHI TOMOYA , SHIRANO GO , SAKAI HIDENORI , MATSUSHITA KEISUKE , TAHIRA TOMOHIDE , ISHIDA TAKESHI , KUBOTA YOSHIHIKO , MIYAZAKI SHOJI
IPC分类号： B21B37/16 , B21B1/16 , B21B37/00
摘要： PROBLEM TO BE SOLVED: To manufacture bar steel rolling stock having as few surface flaws as possible.
SOLUTION: In a rolling method for rolling the bar steel rolling stock 2, the rolling of the bar steel rolling stock 2 is carried out using a measuring device 13 for measuring the width dimension of the bar steel rolling stock 2 which is arranged at an outlet side of a rolling stand 11 for rolling the bar steel rolling stock 2. A predetermined rolling stand 11 is made to be a first stand 11a, a rolling stand 11 at a downstream side adjacent to the first stand 11a is made to be a second stand 11b, and the width dimension at the outlet side in the first stand 11a before the bar steel rolling stock 2 is introduced into the second stand 11b since it is introduced into the first stand 11a is made to be a non-tension dimension W1. When the width dimension at the outlet side in the first stand 11a is made to be a tension dimension W1' in allowing the bar steel rolling stock 2 to be introduced into the second stand 11b, the number of rotations of a rolling roll 12 is controlled in such a way that a value of δW1=W1-W1' is to become a target value.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：制造具有尽可能少的表面缺陷的棒钢机车车辆。解决方案：在轧制钢坯轧制坯料2的轧制方法中，使用测量装置13进行钢坯轧制车辆2的轧制，该测量装置13用于测量钢坯轧制车辆2的宽度尺寸，其布置在轧制机架11的出口侧，用于轧制钢坯轧制坯料2.将预定的轧制机架11制成为第一机架11a，将与第一机架11a相邻的下游侧的轧制机架11设为第二支架11b和第二支架11b中引入第一支架11b之前的第一支架11a的出口侧的宽度尺寸被设定为非张力尺寸 W1。当使第一台架11a的出口侧的宽度尺寸成为允许钢坯轧制车辆2被引入到第二机架11b中的张力尺寸W1'时，控制轧辊12的转数使得δW1= W1-W1'的值成为目标值。版权所有（C）2011，JPO＆INPIT

17. 发明专利

JP2007290006A Method of rolling billet 有权
标题翻译：滚筒方法
公开(公告)号：JP2007290006A
公开(公告)日：2007-11-08
申请号：JP2006120898
申请日：2006-04-25
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： KUSHIDA HITOSHI , KAWABATA TSUNENORI , KUBOTA YOSHIHIKO
IPC分类号： B21B1/02 , B21B37/00 , B21B37/16
摘要： PROBLEM TO BE SOLVED: To provide a method for suppressing the bend of a billet after rolling by eliminating the twist of the billet delivered from the final rolling mill which is generated by temperature distribution or the like on the cross section of a rolled stock without using a twister and a roller guide in the continuous rolling of the billet. SOLUTION: By providing grooved rolling rolls on at least the final rolling mill 5H and the rolling mill 4V before the final one and preliminarily making the angle of twist of the billet B2 correspond to the adjustment in the axial direction of the rolls of the mill 4V before the final one in the continuous rolling process of the billet in which the twister is not installed between the final rolling mill 5H and the rolling mill 4V before the final one, the twist of the billet B2 is eliminated by adjusting the grooved rolling rolls of the rolling mill 4V before the final one in the axial direction of the roll on the basis of the value measuring the angle of twist of the billet B2 with a measuring device 6. In this manner, it is made possible to suppress the bend of the billet after rolling by evading the generation of surface defects caused by the contact with the twister and the twist even when rolling a billet having comparatively large size of the cross section. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过消除由轧制的横截面上由温度分布等产生的最终轧机产生的坯料的扭转来抑制轧制后坯料的弯曲的方法在坯料的连续轧制中不使用捻线机和滚子导轨的坯料。
解决方案：通过在最终轧制机5H和轧机4V之间至少提供开槽轧辊，并且预先使坯料B2的扭转角度对应于辊的轴向上的调整在最终轧制机5H和轧机4V之前没有设置捻线机的坯料的连续轧制过程中的最后一个轧机4V之间，通过调整槽基于通过测量装置6测量坯料B2的扭转角度的值，在辊的轴向最后一个轧机之前的轧机轧制辊4V。以这种方式，可以抑制通过避免由于与捻线机的接触引起的表面缺陷的产生以及即使在轧制具有相当大的横截面的坯料的情况下，轧制后的坯料弯曲。版权所有（C）2008，JPO＆INPIT

18. 发明专利

JP2001276915A MANY STRAND ROLLING EQUIPMENT FOR WIRE ROD AND ROLLING METHOD IN IT 失效
公开(公告)号：JP2001276915A
公开(公告)日：2001-10-09
申请号：JP2000091857
申请日：2000-03-29
申请人： KOBE STEEL LTD
发明人： MIYAKE SHOJI , SHIOASHI YASUHIRO , HIRAGA NORIAKI , KUBOTA YOSHIHIKO , SAKAMOTO KATSUHIKO
IPC分类号： B21B1/16 , B21B39/00 , B21B45/00 , C21D9/52
摘要： PROBLEM TO BE SOLVED: To provide a rolling equipment with many strands for wire rods which is not restricted by a size of a rolled material. SOLUTION: In the rolling equipment comprising a rough rolling mill with many strands for wire rods 8 which rolls a billet 15 extracted from a walking beam heating furnace 2, a rolling mill with one strand for reduction 5 for reducing the billet 15 enough to roll by using the rolling mill with many strands 8 and a distributing device 6 for distributing billets 15 rolled by the rolling mill with one strand 5 to each strand of the rough rolling mill with many strands 5 are installed between the heating furnace 2 and the rough rolling mill 8 with many strands 8.

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