公开(公告)号：US06866725B2

公开(公告)日：2005-03-15

申请号：US10220441

申请日：2001-02-28

申请人： Nobuhiro Fujita ,  Naoki Yoshinaga ,  Manabu Takahashi ,  Hitoshi Asahi ,  Yasuhiro Shinohara ,  Yasushi Hasegawa

发明人： Nobuhiro Fujita ,  Naoki Yoshinaga ,  Manabu Takahashi ,  Hitoshi Asahi ,  Yasuhiro Shinohara ,  Yasushi Hasegawa

IPC分类号： C21D8/10 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

CPC分类号： C21D8/10 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y10S148/909

摘要： The present invention is a high strength steel pipe excellent in formability in hydroforming and similar forming methods, characterized by: containing, in mass, C of 0.0005 to 0.30%, Si of 0.001 to 2.0%, Mn of 0.01 to 3.0% and appropriate amounts of other elements if necessary, with the balance consisting of Fe and unavoidable impurities; and an average for the ratios of the X-ray strength in the orientation component group of {110} to {111} to random X-ray diffraction strength on a plane at the wall thickness center being 2.0 or more and/or a ratio of the X-ray strength in the orientation component of {110} to random X-ray diffraction strength on the plane at the wall thickness center being 3.0 or more.

摘要翻译： 本发明是一种在液压成形方法和类似成形方法中成形性优异的高强度钢管，其特征在于：以质量计含有0.0005〜0.30％的Si，0.001〜2.0％的Si，0.01〜3.0％的Mn和适量的 的其他元素，如有必要，余量由Fe和不可避免的杂质组成; {110} <110> <111> <110>的取向成分组中的X射线强度与壁厚中心的平面上的随机X射线衍射强度的比率的平均值为2.0以上 和/或{110} <110>的取向成分中的X射线强度与壁厚中心的平面上的随机X射线衍射强度的比例为3.0以上。

公开(公告)号：US06632296B2

公开(公告)日：2003-10-14

申请号：US10049481

申请日：2002-02-06

申请人： Naoki Yoshinaga ,  Nobuhiro Fujita ,  Manabu Takahashi ,  Yasuhiro Shinohara ,  Tohru Yoshida ,  Natsuko Sugiura

发明人： Naoki Yoshinaga ,  Nobuhiro Fujita ,  Manabu Takahashi ,  Yasuhiro Shinohara ,  Tohru Yoshida ,  Natsuko Sugiura

IPC分类号： C22C3802

CPC分类号： C22C38/04 ,  C21D8/10 ,  C21D2201/00 ,  C21D2201/05 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/06 ,  Y10S148/909

摘要： The present invention provides a steel pipe excellent in formability during hydraulic forming and the like and a method to produce the same, and more specifically: a steel pipe excellent in formability having an r-value of 1.4 or larger in the axial direction of the steel pipe, and the property that the average of the ratios of the X-ray intensity in the orientation component group of {110} to {332} on the plane at the center of the steel pipe wall thickness to the random X-ray intensity is 3.5 or larger, and/or the ratio of the X-ray intensity in the orientation component of {110} on the plane at the center of the steel pipe wall thickness to the random X-ray intensity is 5.0 or larger; and a method to produce a steel pipe excellent in formability characterized by heating the steel pipe having the property that the ratio of the X-ray intensity in every one of the orientation components of {001} , {116} , {114} and {112} on the plane at the center of the mother pipe wall thickness to the random X-ray intensity is 3 or smaller to a temperature in the range from 650 to 1,200° C. and by applying working under a condition of a diameter reduction ratio of 30% or more and a wall thickness reduction ratio of 5 to 30%.

摘要翻译： 本发明提供一种在液压成形等中成形性优异的钢管及其制造方法，更具体地说，在钢的轴向上具有r值为1.4以上的成形性优异的钢管 管子，以及在钢管壁厚度的中心的平面上{110} <110> <{115} <110>的取向成分组中的X射线强度的比率的平均值相对于 随机X射线强度为3.5以上，和/或在钢管壁厚中心的平面上{110} <110>的取向成分中的X射线强度与随机X射线 强度为5.0以上; 以及生产成型性优良的钢管的制造方法，其特征在于，加热具有{001} <110>，{116} <110>的各取向成分的X射线强度的比例的钢管， 在母管壁厚度中心的平面上的随机X射线强度的{114} <110>和{112} <110>为650以上1200℃以下的温度。 并且通过在直径减小率为30％以上，壁厚减少率为5〜30％的条件下进行加工。

公开(公告)号：US07776161B2

公开(公告)日：2010-08-17

申请号：US12048465

申请日：2008-03-14

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

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06

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。

公开(公告)号：US20080166257A1

公开(公告)日：2008-07-10

申请号：US12048465

申请日：2008-03-14

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

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06

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。

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

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06

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。

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

IPC分类号： C21D8/02 ,  C21D8/04

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。

公开(公告)号：US07534312B2

公开(公告)日：2009-05-19

申请号：US10487797

申请日：2002-06-27

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

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06

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。

公开(公告)号：US20080308200A1

公开(公告)日：2008-12-18

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

IPC分类号： C21D7/02 ,  C21D7/13

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.

公开(公告)号：US20080295924A1

公开(公告)日：2008-12-04

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

IPC分类号： C25D5/36 ,  C22C38/04 ,  C22C38/02 ,  C21D8/00 ,  C21D1/26 ,  C21D8/02

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。

公开(公告)号：US20130037180A1

公开(公告)日：2013-02-14

申请号：US13574096

申请日：2011-01-26

申请人： Kohichi Sano ,  Chisato Wakabayashi ,  Hiroyuki Kawata ,  Riki Okamoto ,  Naoki Yoshinaga ,  Kaoru Kawasaki ,  Natsuko Sugiura ,  Nobuhiro Fujita

发明人： Kohichi Sano ,  Chisato Wakabayashi ,  Hiroyuki Kawata ,  Riki Okamoto ,  Naoki Yoshinaga ,  Kaoru Kawasaki ,  Natsuko Sugiura ,  Nobuhiro Fujita

IPC分类号： C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/34 ,  C22C38/14 ,  C22C38/22 ,  C22C38/20 ,  C22C38/32 ,  C22C38/58 ,  C22C38/40 ,  C22C38/12 ,  C21D8/02 ,  C22C38/38

CPC分类号： C22C38/02 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/48 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/008 ,  C22C38/04 ,  C22C38/06 ,  C23C2/04 ,  C23C2/26 ,  C23C2/28

摘要： A high-strength cold-rolled steel sheet includes, by mass %, C: 0.10% to 0.40%, Mn: 0.5% to 4.0%, Si: 0.005% to 2.5%, Al: 0.005% to 2.5%, Cr: 0% to 1.0%, and a balance of iron and inevitable impurities, in which an amount of P is limited to 0.05% or less, an amount of S is limited to 0.02% or less, an amount of N is limited to 0.006% or less, the microstructure includes 2% to 30% of retained austenite by area percentage, martensite is limited to 20% or less by area percentage in the microstructure, an average particle size of cementite is 0.01 μm to 1 μm, and 30% to 100% of the cementite has an aspect ratio of 1 to 3.

摘要翻译： 高强度冷轧钢板以质量％计含有C：0.10％至0.40％，Mn：0.5％至4.0％，Si：0.005％至2.5％，Al：0.005％至2.5％，Cr：0 ％至1.0％，其中P含量限制在0.05％以下的铁和不可避免的杂质的余量，S的量限制在0.02％以下，N的量限定为0.006％，或者 微观结构中的残余奥氏体的面积率为2％〜30％，微观结构中的面积百分比将马氏体限制在20％以下，渗碳体的平均粒径为0.01μm〜1μm，30％〜100％ 渗碳体的％的纵横比为1〜3。