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51. 发明专利

JP2005279898A Method and facility for manufacturing steel strip with few surface defects 审中-公开
标题翻译：用于制造具有表面缺陷的钢带的方法和设备
公开(公告)号：JP2005279898A
公开(公告)日：2005-10-13
申请号：JP2004101534
申请日：2004-03-30
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU , SOTANI YASUHIRO , MATSUZAWA EISEI , OBIKAWA TOSHIYUKI , YOSHINO MASAHIKO
IPC分类号： B23C3/13 , B21B45/00 , B21B45/02
摘要： PROBLEM TO BE SOLVED: To provide a method and a facility for manufacturing a steel strip with few surface defects and with superior surface quality, by prolonging a service lifetime of a defect removing means and obtaining defect removal traces with proper surface quality, when a surface defect part of the hot-rolled steel strip is removed in a continuous sheet passing line.
SOLUTION: The surface defect part of the hot-rolled steel strip 1 to be passed through is detected and removed by the defect-removing means, and after that, cold-rolling or the like is applied to the steel strip in the steel strip manufacturing method. A rotary cutting tool 2, which has a rotating axis center in a plane approximately parallel to a steel strip pass line, is used as the defect-removing means. The surface defect part is removed, by cutting the steel strip surface with the rotary cutting tool.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种制造具有很少表面缺陷和优异的表面质量的钢带的方法和设备，通过延长缺陷去除装置的使用寿命并获得具有适当表面质量的缺陷去除痕迹，当在连续的片材通过线中去除热轧钢带的表面缺陷部分时。解决方案：通过缺陷去除装置检测和去除待通过的热轧钢带1的表面缺陷部分，然后在钢带中施加冷轧等钢带制造方法。作为缺陷去除机构，使用在大致平行于钢带通行线的平面中具有旋转轴中心的旋转切削工具2。通过用旋转切削工具切割钢带表面，去除表面缺陷部分。版权所有（C）2006，JPO＆NCIPI

52. 发明专利

JP2005171313A Method for producing steel plate 审中-公开
标题翻译：生产钢板的方法
公开(公告)号：JP2005171313A
公开(公告)日：2005-06-30
申请号：JP2003412914
申请日：2003-12-11
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KUROKI TAKASHI , MIYAKE MASARU , SOTANI YASUHIRO
IPC分类号： B21B1/26 , C21D8/02 , C21D9/46
摘要： PROBLEM TO BE SOLVED: To provide a steel plate production method by which the steel plate having an extra-fine ferritic structure of ≤3 μm final ferritic grain diameter which is finer than that of the conventional steel can be stably produced.
SOLUTION: This method for producing the steel plate has: a first rapid-cooling process for cooling hot-worked steel from a temperature not lower than the Ar
3 transformation point to a temperature not higher than the bainitic transformation temperature at a cooling rate generating the bainitic structure ; and a heating process for reversely transforming the hot-worked steel which has completed the transformation with this cooling into austenite by heating to a temperature not lower than the Ac
3 transformation point.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了提供一种钢板制造方法，通过该方法可以稳定地制造具有比常规钢更细的最终铁素体晶粒直径≤3μm的超细铁素体结构的钢板。解决方案：该钢板的制造方法具有：从不低于Ar 3 相变点的温度冷却热加工钢的第一快速冷却工艺，其温度不高于产生贝氏体结构的冷却速度下的贝氏体转变温度; 以及通过加热到不低于Ac 3 相变点的温度，将完成了通过冷却转变的热处理钢逆向转变为奥氏体的加热方法。版权所有（C）2005，JPO＆NCIPI

53. 发明专利

JP2005060774A Method of producing steel strip having reduced surface defect 有权
标题翻译：生产具有减少表面缺陷的钢带的方法
公开(公告)号：JP2005060774A
公开(公告)日：2005-03-10
申请号：JP2003292737
申请日：2003-08-13
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU , SOTANI YASUHIRO , MATSUZAWA EISEI , KATO HIROHARU , NISHINA YOSHIAKI
IPC分类号： G01B7/34 , B21B45/06 , B21C51/00 , C23G1/08 , C23G3/02 , G01B7/00 , G01B21/30
CPC分类号： C23G3/027
摘要： PROBLEM TO BE SOLVED: To stably produce a product steel strip having excellent surface quality without reducing the quality due to the removal traces in defects caused by the removal of the surface defects in a hot rolled steel strip. SOLUTION: Regarding the method of producing a steel strip having reduced surface defects, in the inlet side of a pickling tank in a pickling line, the surface defective part of a hot rolled steel strip is detected by a defect detection apparatus, based on the defect detection signal, the surface defective part is removed by a defect removal apparatus on the downstream side of the defect detection apparatus, and thereafter, the hot rolled steel strip is pickled with a pickling liquid heated to a liquid temperature of ≥80°C in the pickling tank. In the pickling, the surface skin with the removal traces in the defects in the steel strip face can be made to close to that in a defect non-removed part by the dissolution action of the pickling, so that the generation of the unevenness in the appearance of a product steel strip caused by a difference in the skin from the defect non-removed part can effectively be suppressed, and further, working scrap in the steel strip face can almost perfectly be removed in a process of passing through the pickling line. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了稳定地生产具有优异表面质量的产品钢带，而不会由于去除热轧钢带中的表面缺陷导致的缺陷中的移除痕迹而降低质量。解决方案：关于生产具有减小的表面缺陷的钢带的方法，在酸洗线中的酸洗槽的入口侧，热轧钢带的表面缺陷部分由缺陷检测装置基于在缺陷检测信号上，通过缺陷检测装置的下游侧的缺陷去除装置去除表面缺陷部，之后，将热轧钢带用加热至液体温度≥80°的酸洗液 C在酸洗槽中。在酸洗中，可以通过酸洗的溶解作用，使钢带表面的缺陷中的去除痕迹的表面皮肤接近于缺陷未除去部分的表面皮肤，使得产生不均匀性可以有效地抑制由皮肤与缺陷未除去部分的差异引起的产品钢带的外观，并且在通过酸洗线的过程中，钢带表面中的废钢几乎可以完全去除。版权所有（C）2005，JPO＆NCIPI

54. 发明专利

JP2005059059A Method for manufacturing steel strip with less surface defect 有权
标题翻译：钢表面缺陷的制造方法
公开(公告)号：JP2005059059A
公开(公告)日：2005-03-10
申请号：JP2003292742
申请日：2003-08-13
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU , MATSUZAWA EISEI , SOTANI YASUHIRO
IPC分类号： G01B21/30 , B21B45/00 , B21C51/00
摘要： PROBLEM TO BE SOLVED: To consistently manufacture a product steel strip of excellent quality and performance without raising degradation of the surface quality of the product steel strip or problems associated with the secondary working such as pressing by defect removal trace caused by removing surface defects of a hot-rolled steel strip. SOLUTION: In a method for manufacturing a steel strip of less surface defects, when a surface defective part of a hot-rolled steel strip is detected by a defect detection device in an arbitrary line in which the hot-rolled steel strip is continuously passed through, and the surface defective part is removed by a defect removing device on the downstream side of the defect detection device based on a defect detection signal, the defect removal depth and the defect removal width of the surface defective part in which irregular appearance occurs in the product steel strip are obtained in advance, the defect removal depth and the defect removal width are set based thereon, and the surface defective part is removed thereby. Preferably, the surface defective part is removed with the defect removal depth ΔH and the defect removal width W satisfying the inequality ΔH ≤ α(h/H)×ä(H-h)/W β }, where ΔH is the defect removal depth (μm), W is the defect removal width (mm), H is the thickness (mm) of the steel strip before cold rolling, h is the thickness (mm) of the steel strip after the cold rolling, and α and β are constants. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：一贯地制造质量和性能优异的产品钢带，而不会增加产品钢带的表面质量的劣化或与二次加工相关的问题，例如由去除表面引起的缺陷去除痕迹的压制热轧钢带的缺陷。解决方案：在用于制造具有较少表面缺陷的钢带的方法中，当热轧钢带的表面缺陷部分被热轧带钢的任意线中的缺陷检测装置检测到时，基于缺陷检测信号，其中不规则外观的缺陷去除深度和表面缺陷部分的缺陷去除宽度，通过缺陷检测装置的下游侧的缺陷去除装置除去表面缺陷部分事先获得产品钢带中发生的缺陷去除深度和缺陷去除宽度，并且由此去除表面缺陷部分。优选地，缺陷去除深度ΔH和缺陷去除宽度W满足不等式ΔH≤α（h / H）×ä（Hh）/ W β}去除表面缺陷部分，其中ΔH 是缺陷去除深度（μm），W是缺陷去除宽度（mm），H是冷轧前钢带的厚度（mm），h是冷轧后钢带的厚度（mm） α和β为常数。版权所有（C）2005，JPO＆NCIPI

55. 发明专利

JP2004243384A Method of manufacturing hot steel strip 有权
公开(公告)号：JP2004243384A
公开(公告)日：2004-09-02
申请号：JP2003036814
申请日：2003-02-14
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , 石川島播磨重工業株式会社
发明人： MATSUZAWA EISEI , MIYAKE MASARU , SOTANI YASUHIRO , OSADA SHIRO , NISHII TAKASHI
IPC分类号： B21B1/26 , B21B37/00 , B21B37/22
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a hot steel strip by which a variation in width and a variation in thickness in the longitudinal direction of the steel strip are corrected in high accuracy. SOLUTION: In the method of manufacturing the hot strip, edging is performed by setting the opening degree of the rolls of a vertical rolling mill (7) on the basis of the rate of a change in width which is a change in width per unit length in the longitudinal direction of a hot slab (11) or a rough bar (12). COPYRIGHT: (C)2004,JPO&NCIPI

56. 发明专利

JP2004223594A Method and device for forming loop for thickness reducing press 有权
公开(公告)号：JP2004223594A
公开(公告)日：2004-08-12
申请号：JP2003016755
申请日：2003-01-24
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Jfe Steel Kk , Jfeスチール株式会社 , 石川島播磨重工業株式会社
发明人： NISHII TAKASHI , OSADA SHIRO , SOTANI YASUHIRO , MIYAKE MASARU
IPC分类号： B21B1/02 , B21B1/26 , B21B1/46 , B21B15/00 , B21B39/12 , B22D11/128 , B22D11/20
摘要： PROBLEM TO BE SOLVED: To provide a forming method and a forming device for thickness reducing presses for approximately synchronizing the thickness forming speed on the carrying-out side of a slab to be worked of a thickness reducing press with the speed of the slab to be worked on the inlet side to a finishing mill group by efficiently forming a loop shape to the slab to be worked with a small number of apparatus.
SOLUTION: A looper roll 10 is provided with an elevating/lowering mechanism 13 for the looper roll 10 and is provided with a carrying mechanism 14 for making the looper roll 10 movable between a first pinch roll 11 and a second pinch roll 12 along the advancing direction of the slab 4 to be worked. The second pinch roll 12 is provided with a carrying mechanism 14 for making the second pinch roll movable between the prescribed positions of the first pinch roll 11 and the second pinch roll 12 along the advancing direction of the slab 4 to be worked.
COPYRIGHT: (C)2004,JPO&NCIPI

57. 发明专利

JP2004090065A Heavy reduction rolling method and method for manufacturing hot-rolled steel strip by using the same 审中-公开
公开(公告)号：JP2004090065A
公开(公告)日：2004-03-25
申请号：JP2002256794
申请日：2002-09-02
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU
IPC分类号： B21B1/26 , C21D9/46
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method of a hot-rolled steel strip by which heavy reduction rolling is enabled and the hot-rolled strip having hyperfine ferritic structure the final ferritic grain size of which is ≤ 3μm is stably manufactured.
SOLUTION: The hot-rolled steel strip is manufactured through a stage (A) where a slab is made into a rough bar by applying a plurality of passes of reduction in the thickness direction with a rolling mill at the temperature of not lower than the transformation point Ar3 and also rolling is performed at the draft of ≥ 50% by adding compressive force in the longitudinal direction of a material to be rolled on the inlet side of the rolling mill with which the pass is performed at least in the final pass, a stage (B) where the rough bar is cooled to the temperature not higher than the transformation point Ar1 immediately after that, a stage (C) where reverse transformation to austenite is induced by heating the cooled rough bar to the temperature not lower than the transformation point Ar3 after that, a stage (D) where the steel strip is made by applying reduction in the thickness direction of ≥ 50% in the total draft to the heated rough bar immediately after that and a stage (E) where the steel strip is cooled at the cooling rate of ≥ 50°C/s immediately after that.
COPYRIGHT: (C)2004,JPO

58. 发明专利

JP2008194740A Rolling method of metal strip by tandem rolling mill and manufacturing method of metal strip using the same 审中-公开
标题翻译：通过轧制轧机轧制金属条的方法及使用金属条的制造方法
公开(公告)号：JP2008194740A
公开(公告)日：2008-08-28
申请号：JP2007034503
申请日：2007-02-15
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KACHI TAKAYUKI , MIYAKE MASARU , JINNAI TATSUYA , KAMEYAMA KOJI , IMAI MAKOTO
IPC分类号： B21B37/00 , B21B37/28
摘要： PROBLEM TO BE SOLVED: To provide a rolling method of a metal strip by a tandem rolling mill capable of avoiding a threading trouble caused by shapes of material to be rolled, and to provide a manufacturing method of a metal strip using the same. SOLUTION: A plate thickness schedule upon rolling the metal strip by the tandem rolling mill is corrected so as to fall within a limit of the amount of change of the allowable crown ratio of each stand composing the tandem rolling mill. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种能够避免由待轧制材料的形状引起的穿线问题的串联式轧机的轧制方法，并提供使用其的金属带的制造方法。解决方案：通过串联轧机轧制金属带的板厚度计划被校正为落在构成串列式轧机的每个支架的允许顶冠比的变化量的极限内。版权所有（C）2008，JPO＆INPIT

59. 发明专利

JP2006272427A Method and apparatus for edging hot slab 审中-公开
标题翻译：方法和装置用于加工热板
公开(公告)号：JP2006272427A
公开(公告)日：2006-10-12
申请号：JP2005097778
申请日：2005-03-30
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU , SOTANI YASUHIRO , YAZAKI TAKUO , KUROKI TAKASHI
IPC分类号： B21B1/02 , B21B15/00
摘要： PROBLEM TO BE SOLVED: To provide an edging method of a hot slab having high productivity by making the increase of the feed rate and the amount of edging between edging passes possible while preventing slip in the edging with a sizing press.
SOLUTION: This edging method is an edging method by which a hot slab 4 is reduced intermittently in the width direction by using a pair of dies which are provided confronting each other by holding the hot slab between them in the width direction and which have an upstream-side reducing surface 2 which is extending and inclining in the inlet side to the advancing direction of the hot slab 4 and have a downstream-side reducing surface 3 continuing to the upstream-side edging surface, extending and inclining to toward the advancing direction. In this edging method of the hot slab, a slab reducing motion is started with the upstream-side reducing surface and the downstream-side reducing surface by reducing the dies 1 in the width direction and also the dies are reduce to the bottom dead center of the reducing motion while rotating the dies so that the contact surfaces with the slab change to the downstream-side reducing surfaces accompanying the reduction.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有高生产率的热板坯的边缘化方法，其通过在施加压边的同时防止边缘磨损而使进给速度和磨边量之间的磨边量增大。解决方案：这种边缘方法是一种边缘方法，其中通过使用通过在宽度方向上保持它们之间的热板坯而相对设置的一对模具，热板坯4沿宽度方向间歇地减小，并且具有沿着热板坯4的前进方向的入口侧延伸并倾斜的上游侧还原面2，并且具有继续向上游侧边缘表面延伸并朝向前进方向。在该热轧板坯的这种边缘化方法中，通过在宽度方向上减少模具1而使上模侧还原面和下游侧还原面开始板坯的还原运动，并且模具还原到同时使模具旋转，使得与板坯的接触表面随着还原而变成下游侧的还原表面。版权所有（C）2007，JPO＆INPIT

60. 发明专利

JP2005169454A Steel strip manufacturing equipment and method 审中-公开
标题翻译：钢带制造设备和方法
公开(公告)号：JP2005169454A
公开(公告)日：2005-06-30
申请号：JP2003412913
申请日：2003-12-11
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： MIYAKE MASARU , KUROKI TAKASHI , SOTANI YASUHIRO
IPC分类号： B21B1/26 , B21B45/00 , B21B45/02 , C21D8/02
摘要： PROBLEM TO BE SOLVED: To provide a steel strip manufacturing equipment capable of stably making a steel strip having a superfine ferrite structure whose final ferrite grain size is 3 μm or below, and also to provide a steel strip manufacturing method using this equipment.
SOLUTION: The steel strip manufacturing equipment is provided with: rough machining equipment 4 with which screw-down in a plate thickness direction of one or more passes is imparted to a hot slab to form a crude bar; first rapid cooling equipment 5 which is installed directly near the exit side of the rough machining equipment to cool the crude bar; coil box equipment 6 which winds the cooled crude bar in a coil shape; rapid heating equipment 7 which heats the crude bar wound in a coil while unwinding it, and finishing mill equipment 8 which makes the steel strip by imparting a screw-down to the heated crude bar in the thickness direction, in this order.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够稳定地制造具有最终铁素体晶粒尺寸为3μm以下的超细铁素体组织的钢带的钢带制造装置，并且还提供使用该设备的钢带制造方法。钢带制造设备具有：粗加工设备4，将一个或多个通道的板厚度方向上的螺纹拧入热板坯以形成粗棒; 第一台快速冷却设备5，直接安装在粗加工设备出口侧附近，以冷却粗棒; 线圈箱设备6，其将冷却的粗棒卷绕成线圈形状; 快速加热设备7，其在退绕时加热缠绕在线圈中的粗棒;以及精轧机设备8，其通过沿着厚度方向向加热的粗棒施加螺纹，从而制成钢带。版权所有（C）2005，JPO＆NCIPI

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