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公开(公告)号：US08303739B2
公开(公告)日：2012-11-06
申请号：US11912037
申请日：2006-04-14
摘要： Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.
摘要翻译： 本发明的示例性实施例可提供一种显示高强度，高延展性和显着程度的合金化的热浸镀锌合金化钢板的制造方法。 这种示例性方法可以应用于例如酸洗热轧钢板或包含约0.02％至约0.2％C和约0.15％至约2.5％Mn之间的退火和酸洗冷轧钢板，并且可以包括一种 或更多的用于冲洗片材的程序，用Ni预涂片材，在非氧化气氛中快速加热片材至约430℃至500℃的片材温度，然后将该片材浸渍在含有 约0.05％和约0.2％的Al，然后立即快速加热片材进行合金化处理。 这种示例性方法可以提供改进的合金化速度，改善的电镀外观和更好的电镀附着力。
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公开(公告)号：US20090211668A1
公开(公告)日：2009-08-27
申请号：US11912037
申请日：2006-04-14
IPC分类号： C21D9/46
摘要： Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.
摘要翻译： 本发明的示例性实施例可提供一种显示高强度，高延展性和显着程度的合金化的热浸镀锌合金化钢板的制造方法。 这种示例性方法可以应用于例如酸洗热轧钢板或包含约0.02％至约0.2％C和约0.15％至约2.5％Mn之间的退火和酸洗冷轧钢板，并且可以包括一种 或更多的用于冲洗片材的程序，用Ni预涂片材，在非氧化气氛中快速加热片材至约430℃至500℃的片材温度，然后将该片材浸渍在含有 约0.05％和约0.2％的Al，然后立即快速加热片材进行合金化处理。 这种示例性方法可以提供改进的合金化速度，改善的电镀外观和更好的电镀附着力。
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公开(公告)号：US08617324B2
公开(公告)日：2013-12-31
申请号：US13614533
申请日：2012-09-13
摘要： Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.
摘要翻译： 本发明的示例性实施例可提供一种显示高强度，高延展性和显着程度的合金化的热浸镀锌合金化钢板的制造方法。 这种示例性方法可以应用于例如酸洗热轧钢板或包含约0.02％至约0.2％C和约0.15％至约2.5％Mn之间的退火和酸洗冷轧钢板，并且可以包括一种 或更多的用于冲洗片材的程序，用Ni预涂片材，在非氧化气氛中快速加热片材至约430℃至500℃的片材温度，然后将该片材浸渍在含有 约0.05％和约0.2％的Al，然后立即快速加热片材进行合金化处理。 这种示例性方法可以提供改进的合金化速度，改善的电镀外观和更好的电镀附着力。
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公开(公告)号：US20130008569A1
公开(公告)日：2013-01-10
申请号：US13614533
申请日：2012-09-13
摘要： Exemplary embodiments of the present invention can provide a method for producing hot dip galvannealed steel sheet which exhibits high strength, high ductility, and a significant degree of alloying. Such exemplary method can be applied to, e.g., a pickled hot rolled steel sheet or an annealed and pickled cold rolled steel sheet containing between about 0.02% and about 0.2% C and between about 0.15% and about 2.5% Mn, and may include one or more procedures for rinsing the sheet, preplating the sheet with Ni, rapidly heating the sheet in a nonoxidizing atmosphere to a sheet temperature of about 430° C. to 500° C., then hot dip plating the sheet in a galvanizing bath containing between about 0.05% and about 0.2% Al, and then immediately heating the sheet rapidly for an alloying treatment. Such exemplary method can provide an improved alloying speed, improved plating appearance and better plating adhesion.
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公开(公告)号：US10023931B2
公开(公告)日：2018-07-17
申请号：US12225170
申请日：2007-03-28
申请人： Junji Haji , Kaoru Kawasaki , Kiyokazu Ishizuka , Teruaki Yamada
发明人： Junji Haji , Kaoru Kawasaki , Kiyokazu Ishizuka , Teruaki Yamada
IPC分类号： C23C2/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/04 , C23C2/06 , C23C2/26 , C23C2/28
摘要： The present invention provides a method of production of hot dip galvannealed steel sheet with excellent workability compared with the Sendzimir method or non-oxidizing furnace method and further with excellent powdering or slidability, that is, a method of production of hot dip galvannealed steel sheet with excellent workability, powdering, and slidability characterized by processing a slab containing, by mass %, C: 0.01 to 0.12%, Mn: 0.05 to 0.6%, Si: 0.002 to 0.1%, P: 0.05% or less, S: 0.03% or less, sol. Al: 0.005 to 0.1%, and N: 0.01% or less and having a balance of Fe and unavoidable impurities by hot rolling, pickling, cold rolling, then annealing at 650 to 900° C., cooling to 250 to 450° C., holding at said temperature range for 120 seconds or more, then cooling to room temperature, pickling, preplating Ni or Ni—Fe without intermediate temper rolling, heating by 5° C./sec or more down to 430 to 500° C., galvanizing in a galvanization bath, wiping, then heating by a rate of temperature rise of 20° C./sec or more up to 460 to 550° C., not providing any soaking time or holding for soaking for less than 5 seconds, then cooling by 3° C./sec or more, and final temper rolling by a 0.4 to 2% elongation rate.
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6.发明申请Method of Production of Hot Dip Galvannealed Steel Sheet with Excellent Workability, Powderability, and Slidability 有权热浸镀锌钢板的制造方法，其加工性，粉化性和滑动性优异公开(公告)号：US20090151820A1
公开(公告)日：2009-06-18
申请号：US12225170
申请日：2007-03-28
申请人： Junji Haji , Kaoru Kawasaki , Kiyokazu Ishizuka , Teruaki Yamada
发明人： Junji Haji , Kaoru Kawasaki , Kiyokazu Ishizuka , Teruaki Yamada
CPC分类号： C21D9/46 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/04 , C23C2/06 , C23C2/26 , C23C2/28
摘要： The present invention provides a method of production of hot dip galvannealed steel sheet with excellent workability compared with the Sendzimir method or non-oxidizing furnace method and further with excellent powdering or slidability, that is, a method of production of hot dip galvannealed steel sheet with excellent workability, powdering, and slidability characterized by processing a slab containing, by mass %, C: 0.01 to 0.12%, Mn: 0.05 to 0.6%, Si: 0.002 to 0.1%, P: 0.05% or less, S: 0.03% or less, sol. Al: 0.005 to 0.1%, and N: 0.01% or less and having a balance of Fe and unavoidable impurities by hot rolling, pickling, cold rolling, then annealing at 650 to 900° C., cooling to 250 to 450° C., holding at said temperature range for 120 seconds or more, then cooling to room temperature, pickling, preplating Ni or Ni—Fe without intermediate temper rolling, heating by 5° C./sec or more down to 430 to 500° C., galvanizing in a galvanization bath, wiping, then heating by a rate of temperature rise of 20° C./sec or more up to 460 to 550° C., not providing any soaking time or holding for soaking for less than 5 seconds, then cooling by 3° C./sec or more, and final temper rolling by a 0.4 to 2% elongation rate.
摘要翻译： 本发明提供了与Sendzimir方法或非氧化炉法相比具有优异的可加工性的热浸镀锌合金化钢板的制造方法，并且还具有优异的粉化或滑动性，即，制备热浸镀锌合金的钢板的方法， 优异的加工性，粉化性和滑动性，其特征在于，以质量％计含有C：0.01〜0.12％，Mn：0.05〜0.6％，Si：0.002〜0.1％，P：0.05％以下，S：0.03％ 或更少，溶胶。 Al：0.005〜0.1％，N：0.01％以下，通过热轧，酸洗，冷轧，余量为Fe和不可避免的杂质，然后在650〜900℃退火，冷却至250〜450℃。 在所述温度范围内保持120秒以上，然后冷却至室温，酸洗，预镀Ni或Ni-Fe，无中间调质轧制，加热5℃/秒以上至430〜500℃， 在镀锌浴中镀锌，擦拭，然后以20℃/秒以上的温度升温至460〜550℃进行加热，不提供任何均热时间或保持浸泡少于5秒钟，然后 冷却3℃/秒以上，最终调质轧制0.4〜2％的伸长率。
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公开(公告)号：US10023925B2
公开(公告)日：2018-07-17
申请号：US14112584
申请日：2012-05-11
申请人： Kaoru Kawasaki
发明人： Kaoru Kawasaki
IPC分类号： C21D1/18 , C21D6/00 , C22C38/02 , C22C38/04 , C22C38/06 , C21D7/13 , C21D9/00 , C21D9/46 , C21D1/673 , C22C38/00 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , B21B27/06 , B21B37/74 , B21J1/06 , B21D22/02
摘要： A hot stamped article has a component composition containing, in terms of % by mass, 0.002% to 0.1% of C, 0.01% to 0.5% of Si, 0.5% to 2.5% of Mn+Cr, 0.1% or less of P, 0.01% or less of S, 0.05% or less of t-Al, 0.005% or less of N, and 0.0005% to 0.004% of B which is optionally contained in a case where the Mn+Cr is 1.0% or more, the remainder being Fe and unavoidable impurities. The hot stamped article has a microstructure composed of, in terms of an area ratio, 0% or more and less than 90% of martensite, 10% to 100% of bainite, and less than 0.5% of unavoidable inclusion structures, or a microstructure composed of, in terms of an area ratio, 99.5% to 100% of bainitic ferrite, and less than 0.5% of unavoidable inclusion structures.
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公开(公告)号：US08052807B2
公开(公告)日：2011-11-08
申请号：US12185423
申请日：2008-08-04
申请人： Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
发明人： Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
CPC分类号： C22C38/02 , C21D8/0226 , C21D8/0236 , C21D8/04 , C21D9/48 , C21D2211/002 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/06 , C23C2/02 , C25D5/34
摘要： The present invention provides a steel sheet excellent in workability, which may be used for components of an automobile or the like, and a method for producing the same. More specifically, according to one exemplary embodiment of the present invention, a steel sheet excellent in workability, including in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, at most 0.05% S, 0.001 to 0.007% N, 0.008 to 0.2% Al, at least 0.01% Fe. The steel sheet having an average r-value of at least 1.2, an r-value in the rolling direction of at least 1.3, an r-value in the direction of 45 degrees to the rolling direction of at least 0.9, and an r-value in the direction of a right angle to the rolling direction of at least 1.2.
摘要翻译： 本发明提供可以用于汽车等的部件的加工性优异的钢板及其制造方法。 更具体地说，根据本发明的一个示例性实施方案，可加工性优异的钢板，包括：0.08〜0.25％的C，0.001〜1.5％的Si，0.01〜2.0％的Mn，0.001〜0.06％的P， 0.05％S，0.001至0.007％N，0.008至0.2％Al，至少0.01％Fe。 钢板的平均r值为1.2以上，轧制方向的r值为1.3以上，轧制方向为45度的r值为0.9以上，r- 在与滚动方向成直角的方向上的值至少为1.2。
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9.发明申请HIGH-STRENGTH STEEL SHEET AND METHOD OF PRODUCING MOLTEN STEEL FOR HIGH-STRENGTH STEEL SHEET 有权高强度钢板的高强度钢板和高强度钢的生产方法公开(公告)号：US20110076512A1
公开(公告)日：2011-03-31
申请号：US12736998
申请日：2009-06-15
CPC分类号： C21C7/0006 , C21C7/06 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/14 , Y10T428/1266
摘要： A high-strength steel sheet includes: 0.03 to 0.20% of C, 0.08 to 1.5% of Si, 0.5 to 3.0% of Mn, 0.05% or less of P, 0.0005% or more of S, 0.008 to 0.20% of acid-soluble Ti, 0.0005 to 0.01% of N, more than 0.01% of acid-soluble Al, and 0.001 to 0.04% of one or both of Ce and La in terms of mass %; and the balance including Fe and inevitable impurities. The ratio of (Ce+La)/acid-soluble Al is equal to or more than 0.1 and the ratio of (Ce+La)/S is in the range of 0.4 to 50 in a mass base, and the density of the number of inclusions, having a circle equivalent diameter of 2 μm or less, which are present in the steel sheet is equal to or more than 15/mm2.
摘要翻译： 高强度钢板包括：0.03〜0.20％的C，0.08〜1.5％的Si，0.5〜3.0％的Mn，0.05％以下的P，0.0005％以上的S，0.008〜0.20％的酸 - 可溶性Ti，0.0005〜0.01％N，0.01％以上的酸溶性Al和0.001〜0.04％的Ce和La中的一种或两种，以质量％计; 余量包括Fe和不可避免的杂质。 （Ce + La）/酸溶性Al的比例等于或大于0.1，（Ce + La）/ S的比例在质量基底中在0.4〜50的范围内，数量的密度 存在于钢板中的圆当量直径为2μm以下的夹杂物等于或大于15个/ mm 2。
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公开(公告)号：US07749343B2
公开(公告)日：2010-07-06
申请号：US12185402
申请日：2008-08-04
申请人： Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
发明人： Naoki Yoshinaga , Nobuhiro Fujita , Manabu Takahashi , Koji Hashimoto , Shinya Sakamoto , Kaoru Kawasaki , Yasuhiro Shinohara , Takehide Senuma
CPC分类号： C22C38/02 , C21D8/0226 , C21D8/0236 , C21D8/04 , C21D9/48 , C21D2211/002 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/06 , C23C2/02 , C25D5/34
摘要： The present invention provides a steel sheet excellent in workability, which may be used for components of an automobile or the like, and a method for producing the same. More specifically, according to one exemplary embodiment of the present invention, a steel sheet excellent in workability, including in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, at most 0.05% S, 0.001 to 0.007% N, 0.008 to 0.2% Al, at least 0.01% Fe. The steel sheet having an average r-value of at least 1.2, an r-value in the rolling direction of at least 1.3, an r-value in the direction of 45 degrees to the rolling direction of at least 0.9, and an r-value in the direction of a right angle to the rolling direction of at least 1.2.
摘要翻译： 本发明提供可以用于汽车等的部件的加工性优异的钢板及其制造方法。 更具体地说，根据本发明的一个示例性实施方案，可加工性优异的钢板，包括：0.08〜0.25％的C，0.001〜1.5％的Si，0.01〜2.0％的Mn，0.001〜0.06％的P， 0.05％S，0.001至0.007％N，0.008至0.2％Al，至少0.01％Fe。 钢板的平均r值为1.2以上，轧制方向的r值为1.3以上，轧制方向为45度的r值为0.9以上，r- 在与滚动方向成直角的方向上的值至少为1.2。
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