公开(公告)号：US06342310B2

公开(公告)日：2002-01-29

申请号：US09770290

申请日：2001-01-29

申请人： Ikurou Hashimoto ,  Kenji Saitou ,  Hiroyuki Takeda ,  Koichi Makii ,  Shunichi Hashimoto ,  Takayuki Yamamoto ,  Masahiro Nomura ,  Kouki Ikeda ,  Masafumi Shimizu

发明人： Ikurou Hashimoto ,  Kenji Saitou ,  Hiroyuki Takeda ,  Koichi Makii ,  Shunichi Hashimoto ,  Takayuki Yamamoto ,  Masahiro Nomura ,  Kouki Ikeda ,  Masafumi Shimizu

IPC分类号： B32B1518

CPC分类号： C23C2/02 ,  C23C2/06 ,  Y10S428/939 ,  Y10T428/12799

摘要： A hot-dip galvanized steel sheet composed of a basis steel sheet containing Si in an amount of 0.05-2.5 mass % and Mn in an amount of 0.2-3 mass % and a hot-dip galvanized zinc layer formed on the surface thereof, wherein said hot-dip galvanized zinc layer is formed in such a way that there is an Si—Mn enriched phase which is found, by observation under a scanning electron microscope or a transmission electron microscope, in the vicinity of the interface in a region no shorter than 50 &mgr;m in the cross section perpendicular to the interface between the basis steel sheet and the hot-dip galvanized zinc layer, said Si—Mn enriched phase containing more than twice as much Si and/or Mn as the basis steel sheet and extending over a length no more than 80% of the length of the interface observed. This hot-dip galvanized steel sheet is free of bare spots even in the case where the basis steel sheet contains Si and Mn in a comparatively large amount and hence is liable to suffering bare spots.

摘要翻译： 一种由含有0.05-2.5质量％的Si和0.2-3质量％的Mn的基础钢板和在其表面上形成的热镀锌锌层构成的热浸镀锌钢板，其中 所述热浸镀锌锌层形成为具有Si-Mn富集相，其通过在扫描型电子显微镜或透射型电子显微镜下观察而在不短的区域的界面附近发现 在与基底钢板和热镀锌锌层之间的界面垂直的截面中，超过50um的所述Si-Mn富集相含有基本钢板的Si和/或Mn的两倍以上并且延伸 长度不超过界面观察长度的80％。 即使在基础钢板中含有较多量的Si和Mn的情况下，该热浸镀锌钢板也无斑点，因此容易产生裸露斑点。

公开(公告)号：US06306527B1

公开(公告)日：2001-10-23

申请号：US09685096

申请日：2000-10-11

申请人： Shushi Ikeda ,  Koichi Makii ,  Yosuke Shindo ,  Shunichi Hashimoto ,  Takahiro Kashima ,  Hiroshi Akamizu ,  Masahiro Nomura

发明人： Shushi Ikeda ,  Koichi Makii ,  Yosuke Shindo ,  Shunichi Hashimoto ,  Takahiro Kashima ,  Hiroshi Akamizu ,  Masahiro Nomura

IPC分类号： B32B1518

CPC分类号： C23C2/40 ,  C21D1/185 ,  C21D8/0273 ,  C21D2211/005 ,  C21D2211/008 ,  C23C2/02 ,  Y10S428/939 ,  Y10T428/12799

摘要： A hot-dip galvanized steel sheet which is produced from a cold-rolled steel sheet, as a base steel sheet, consisting essentially of C: 0.010-0.06 wt %, Si: no more than 0.5 wt %, Mn: no less than 0.5 wt % and less than 2.0 wt %, P: no more than 0.20 wt %, S: no more than 0.01 wt %, Al: 0.005-0.10 wt %, N: no more than 0.005 wt %, Cr: no more than 1.0 wt %, Mn+1.3Cr: 1.9-2.3 wt %, Fe: remainder, and having a structure composed of ferrite and a second phase containing martensite, said second phase in the structure accounting for no more than 20% in terms of area and martensite in the second phase accounting for no less than 50%, and which has a zinc-plated layer formed on the surface thereof by hot-dip galvanizing or hot-dip galvannealing. A process for production of said hot-dip galvanized steel sheet. This steel sheet has a composite structure containing martensite and yet it has a low strength (no higher than 500 MPa) and also has good strength-ductility balance.

摘要翻译： 一种由冷轧钢板作为基本钢板制成的热浸镀锌钢板，其基本上由C：0.010-0.06重量％，Si：不大于0.5重量％，Mn：不小于0.5 重量％且小于2.0重量％，P：不大于0.20重量％，S：不大于0.01重量％，Al：0.005-0.10重量％，N：不大于0.005重量％，Cr：不大于1.0 重量％，Mn + 1.3Cr：1.9-2.3重量％，Fe：余量，并且具有由铁素体构成的结构和含有马氏体的第二相，所述结构中的所述第二相占面积不大于20％ 第二相中的马氏体不低于50％，并且通过热浸镀锌或热浸镀锌合金在其表面形成有镀锌层。 一种生产所述热浸镀锌钢板的方法。 该钢板具有包含马氏体的复合结构，但其强度低（不高于500MPa），并且还具有良好的强度 - 延展性平衡。

公开(公告)号：US06767652B2

公开(公告)日：2004-07-27

申请号：US10120372

申请日：2002-04-12

申请人： Takayuki Yamamoto ,  Masafumi Shimizu ,  Shunichi Hashimoto

发明人： Takayuki Yamamoto ,  Masafumi Shimizu ,  Shunichi Hashimoto

IPC分类号： B32B1518

CPC分类号： C23C2/28 ,  Y10T428/12799 ,  Y10T428/12951 ,  Y10T428/12972

摘要： A galvannealed steel sheet superior in workability wherein the steel sheet is characterized by containing silicon in an amount no less than 0.8 mass % and retained austenite in an amount no less than 3% (in terms of packing factor) and the alloy zinc plating is characterized by containing Zn—Fe alloy crystal grains which exist in its surface layer and have a specific crystal grain size such that the longer side of a crystal grain is no larger than twice the shorter side of a crystal grain and the number of crystal grains with an average particle size no smaller than 4 &mgr;m is no more than 5 per 70×50 &mgr;m. The steel sheet with alloy zinc coating has good mechanical properties (such as total elongation) and good plating surface slidability.

摘要翻译： 特别优选加工性优良的合金化热镀锌钢板，其特征在于，含有不少于0.8质量％的硅，残留奥氏体不少于3％（以包装系数计），合金镀锌的特征在于 通过含有表面层中存在的Zn-Fe合金晶粒，并且具有特定的晶粒尺寸，使得晶粒的长边不超过晶粒短边的两倍，并且具有 不小于4μm的平均粒度不超过每70x50mum的5个。具有合金锌涂层的钢板具有良好的机械性能（如总伸长率）和良好的电镀表面滑动性。

公开(公告)号：US20100092332A1

公开(公告)日：2010-04-15

申请号：US12640229

申请日：2009-12-17

申请人： Shushi IKEDA ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

发明人： Shushi IKEDA ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

IPC分类号： C22C38/04 ,  C22C38/12 ,  C22C38/02

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/12

摘要： To provide a high-strength cold rolled steel sheet that has well-balanced tensile strength and elongation as well as well-balanced tensile strength and stretch-flangeability, and a plated steel sheet manufactured by plating the steel sheet.The high-strength cold rolled steel sheet contains: 0.10 to 0.28% of C, 1.0 to 2.0% of Si, 1.0 to 3.0% of Mn, and 0.03 to 0.10% of Nb in terms of % by mass, wherein the content of Al is controlled to 0.5 or less, the content of P is controlled to 0.15% or less, and the content of S is controlled to 0.02% or less, and wherein residual austenite accounts for 5 to 20%, bainitic ferrite accounts for 50% or more, and polygonal ferrite accounts for 30% or less (containing 0%), of the entire structure, and wherein a mean number of residual austenite blocks is 20 or more as determined when the random area (15 μm×15 μm) is observed by EBSP (electron back scatter diffraction pattern).

摘要翻译： 提供具有良好的拉伸强度和伸长率以及平衡的拉伸强度和拉伸凸缘性的高强度冷轧钢板，以及通过电镀钢板而制成的镀覆钢板。 高强度冷轧钢板含有：以质量％计，C：0.10〜0.28％，Si：1.0〜2.0％，Mn：1.0〜3.0％，Nb：0.03〜0.10％ 控制在0.5以下，P的含量控制在0.15％以下，S的含量控制在0.02％以下，残留奥氏体占5〜20％，贝氏体铁素体占50％， 更多的是多边形铁素体占整个结构的30％以下（含有0％），并且其中当观察到随机区域（15μm×15μm）时确定的残余奥氏体块的平均数为20以上 通过EBSP（电子背散射衍射图）。

公开(公告)号：US20050247378A1

公开(公告)日：2005-11-10

申请号：US11110716

申请日：2005-04-21

申请人： Shushi Ikeda ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

发明人： Shushi Ikeda ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

IPC分类号： C21D8/02 ,  C22C38/12

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/12

摘要： To provide a high-strength cold rolled steel sheet that has well-balanced tensile strength and elongation as well as well-balanced tensile strength and stretch-flangeability, and a plated steel sheet manufactured by plating the steel sheet. The high-strength cold rolled steel sheet contains: 0.10 to 0.28% of C, 1.0 to 2.0% of Si, 1.0 to 3.0% of Mn, and 0.03 to 0.10% of Nb in terms of % by mass, wherein the content of Al is controlled to 0.5 or less, the content of P is controlled to 0.15% or less, and the content of S is controlled to 0.02% or less, and wherein residual austenite accounts for 5 to 20%, bainitic ferrite accounts for 50% or more, and polygonal ferrite accounts for 30% or less (containing 0%), of the entire structure, and wherein a mean number of residual austenite blocks is 20 or more as determined when the random area (15 μm×15 μμm) is observed by EBSP (electron back scatter diffraction pattern).

摘要翻译： 提供具有良好的拉伸强度和伸长率以及平衡的拉伸强度和拉伸凸缘性的高强度冷轧钢板，以及通过电镀钢板而制成的镀覆钢板。 高强度冷轧钢板含有：以质量％计，C：0.10〜0.28％，Si：1.0〜2.0％，Mn：1.0〜3.0％，Nb：0.03〜0.10％ 控制在0.5以下，P的含量控制在0.15％以下，S的含量控制在0.02％以下，残留奥氏体占5〜20％，贝氏体铁素体占50％， 更多的是多边形铁素体占整个结构的30％以下（含有0％），其中当通过EBSP观察到随机面积（15mumx15mumum）时，残留奥氏体块的平均数为20以上 （电子背散射衍射图）。

公开(公告)号：US06316127B1

公开(公告)日：2001-11-13

申请号：US09553962

申请日：2000-04-20

申请人： Shushi Ikeda ,  Koichi Makii ,  Yosuke Shindo ,  Shunichi Hashimoto ,  Takahiro Kashima

发明人： Shushi Ikeda ,  Koichi Makii ,  Yosuke Shindo ,  Shunichi Hashimoto ,  Takahiro Kashima

IPC分类号： B32B1518

CPC分类号： C21D8/0278 ,  C21D8/0226 ,  C21D8/0273 ,  C22C38/002 ,  C22C38/004 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/28 ,  Y10S428/939 ,  Y10T428/12799

摘要： A P- and Ti-added galvannealed steel sheet superior in ductility, and a process for production thereof. It is made of a cold-rolled steel sheet and has alloyed hot-dip galvanizing on the surface thereof, said cold-rolled steel sheet having the chemical composition (in terms of wt %) of C: less than 0.010%, Si: no more than 0.5%, Mn: 1.0˜3.0%, P: no more than 0.20%, S: no more than 0.01%, Al: 0.005˜0.10%, N: no more than 0.0050%, Ti/48−(C/12+N/14+S/32): 0.0003˜0.0018 with the remainder being chiefly Fe, and said cold-rolled steel sheet being characterized by &rgr;1≦107 and &rgr;2≦5×105, where &rgr;1 is the number of precipitates whose particle diameter (D) is in the range of 10 nm≦D

摘要翻译： 具有优异延性的P型和Ti型合金化热镀锌钢板及其制造方法。 由冷轧钢板制成，其表面具有合金化的热浸镀锌，所述冷轧钢板的化学组成（按重量％计）C：小于0.010％，Si：不 大于0.5％，Mn：1.0〜3.0％，P：不大于0.20％，S：0.01％以下，Al：0.005〜0.10％，N：不大于0.0050％Ti / 48-（C / 12 + N / 14 + S / 32）：0.0003〜0.0018，余量主要为Fe，所述冷轧钢板的特征在于rho1 <= 107且rho2 = 5×105，其中rho1是其颗粒 直径（D）在10nm <= D <100nm的范围内，rho2是其粒径（D）在100nm

公开(公告)号：US08597439B2

公开(公告)日：2013-12-03

申请号：US12640229

申请日：2009-12-17

申请人： Shushi Ikeda ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

发明人： Shushi Ikeda ,  Yoichi Mukai ,  Hiroshi Akamizu ,  Koichi Makii ,  Koichi Sugimoto ,  Shunichi Hashimoto ,  Kenji Saito

IPC分类号： C22C38/12

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/12

摘要： A high-strength cold rolled steel sheet contains:0.10 to 0.28% of C,1.0 to 2.0% of Si,1.0 to 3.0% of Mn, and0.03 to 0.10% of Nb in terms of % by mass,Al is controlled to 0.5 or less, P is controlled to 0.15% or less, and S is controlled to 0.02% or less, and residual austenite accounts for 5 to 20%, bainitic ferrite accounts for 50% or more, and polygonal ferrite accounts for 30% or less (containing 0%), of the entire structure, and a mean number of residual austenite blocks is 20 or more as determined when the random area (15 μm×15 μm) is observed by EBSP (electron back scatter diffraction pattern).

摘要翻译： 高强度冷轧钢板包含：以质量％计，C：0.10〜0.28％，Si：1.0〜2.0％，Mn：1.0〜3.0％，Nb：0.03〜0.10％，Al： 以下，P为0.15％以下，S为0.02％以下，残留奥氏体为5〜20％，贝氏体铁素体为50％以上，多边形铁素体为30％以下 （含有0％），并且当通过EBSP（电子背散射衍射图）观察到随机面积（15mum×15mum））时，残留奥氏体块的平均数为20以上。

公开(公告)号：US07473864B2

公开(公告)日：2009-01-06

申请号：US10848165

申请日：2004-05-19

申请人： Tetsu Iwase ,  Seiji Sasabe ,  Mitsuo Hino ,  Kensuke Tsubota ,  Fumihiro Sato ,  Shunichi Hashimoto ,  Jun Katoh ,  Hiroyuki Takeda

发明人： Tetsu Iwase ,  Seiji Sasabe ,  Mitsuo Hino ,  Kensuke Tsubota ,  Fumihiro Sato ,  Shunichi Hashimoto ,  Jun Katoh ,  Hiroyuki Takeda

IPC分类号： B23K11/16

CPC分类号： B23K11/20 ,  B23K11/34 ,  Y10T428/12757

摘要： A joined part of an aluminum-coated steel sheet and an aluminum sheet is composed of an intermetallic compound layer which exists in a region in which a part of a coated layer exists before the joining and an aluminum melted and solidified part which also exists on the side of the aluminum sheet to enclose the intermetallic compound layer. The atoms existing on the surface of the aluminum melted and solidified part are intermetallic-bonded with atoms which exist on the surface of the steel sheet except in the region in which the intermetallic compound layer exists seen in the plan view. Further, the area of the intermetallic compound layer is limited to 60% or less of the total area of the joined part at the interface between the aluminum-coated steel sheet and the aluminum sheet. Thus, the area of the aluminum melted and solidified part exceeds 40% of the total area of the joined part. The strong joining having a high fracture energy can be provided at a high efficiency.

摘要翻译： 铝涂层钢板和铝板的接合部分由在接合之前存在涂层的一部分的区域中存在的金属间化合物层和也存在于铝材的铝熔化固化部分 的一侧，以包围金属间化合物层。 存在于铝熔融固化部分的表面上的原子与存在于钢板表面上的原子金属间键合，除了在平面图中看到金属间化合物层的区域外。 此外，金属间化合物层的面积被限制在铝镀层钢板和铝板之间的界面处的接合部的总面积的60％以下。 因此，铝熔融和固化部分的面积超过接合部分的总面积的40％。 可以高效率地提供具有高断裂能的强连接。

公开(公告)号：US20050258145A1

公开(公告)日：2005-11-24

申请号：US10848165

申请日：2004-05-19

申请人： Tetsu Iwase ,  Seiji Sasabe ,  Mitsuo Hino ,  Kensuke Tsubota ,  Fumihiro Sato ,  Shunichi Hashimoto ,  Jun Katoh ,  Hiroyuki Takeda

发明人： Tetsu Iwase ,  Seiji Sasabe ,  Mitsuo Hino ,  Kensuke Tsubota ,  Fumihiro Sato ,  Shunichi Hashimoto ,  Jun Katoh ,  Hiroyuki Takeda

IPC分类号： B23K11/16 ,  B23K11/20 ,  B23K11/34

CPC分类号： B23K11/20 ,  B23K11/34 ,  Y10T428/12757

摘要： A joined part of an aluminum-coated steel sheet and an aluminum sheet is composed of an intermetallic compound layer which exists in a region in which a part of a coated layer exists before the joining and an aluminum melted and solidified part which also exists on the side of the aluminum sheet to enclose the intermetallic compound layer. The atoms existing on the surface of the aluminum melted and solidified part are intermetallic-bonded with atoms which exist on the surface of the steel sheet except in the region in which the intermetallic compound layer exists seen in the plan view. Further, the area of the intermetallic compound layer is limited to 60% or less of the total area of the joined part at the interface between the aluminum-coated steel sheet and the aluminum sheet. Thus, the area of the aluminum melted and solidified part exceeds 40% of the total area of the joined part. The strong joining having a high fracture energy can be provided at a high efficiency.

摘要翻译： 铝涂层钢板和铝板的接合部分由在接合之前存在涂层的一部分的区域中存在的金属间化合物层和也存在于铝材的铝熔化固化部分 的一侧，以包围金属间化合物层。 存在于铝熔融固化部分的表面上的原子与存在于钢板表面上的原子金属间键合，除了在平面图中看到金属间化合物层的区域外。 此外，金属间化合物层的面积被限制在铝镀层钢板和铝板之间的界面处的接合部的总面积的60％以下。 因此，铝熔融和固化部分的面积超过接合部分的总面积的40％。 可以高效率地提供具有高断裂能的强连接。

公开(公告)号：US08909112B2

公开(公告)日：2014-12-09

申请号：US12879585

申请日：2010-09-10

申请人： Tomoko Takahashi ,  Naoyuki Ozaki ,  Ryuji Yoshida ,  Nobuyuki Koinuma ,  Hiroaki Maeda ,  Shunichi Hashimoto ,  Mugijirou Uno ,  Yoshinori Nakagawa ,  Mikio Ishibashi ,  Hideki Zemba

发明人： Tomoko Takahashi ,  Naoyuki Ozaki ,  Ryuji Yoshida ,  Nobuyuki Koinuma ,  Hiroaki Maeda ,  Shunichi Hashimoto ,  Mugijirou Uno ,  Yoshinori Nakagawa ,  Mikio Ishibashi ,  Hideki Zemba

IPC分类号： G03G15/01 ,  G03G15/20 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/1605 ,  G03G15/161

摘要： An image forming apparatus including a conveyance unit to convey a transfer medium, a first image forming unit to form a monochrome image transferred at a first transfer position onto the transfer medium, and a second image forming unit disposed downstream from the first image forming unit in a direction of conveyance of the transfer medium, including an intermediate transfer body to form a multi-colored toner image on the intermediate transfer body. The multi-colored toner image is transferred onto the transfer medium at a second transfer position. The conveyance unit is separated from the intermediate transfer body at the second transfer position in a monochrome mode to form the monochrome image using only the first image forming unit, and contacts the intermediate transfer body at the second transfer position in a full-color mode to form a full-color image using both the first and second image forming units.

摘要翻译： 一种图像形成装置，包括：传送单元，用于传送转印介质;第一图像形成单元，形成在第一转印位置转印到转印介质上的单色图像;以及第二图像形成单元，设置在第一图像形成单元的下游 转印介质的输送方向，包括中间转印体，以在中间转印体上形成多色调色剂图像。 多色调色剂图像在第二转印位置转印到转印介质上。 输送单元在单色模式下在第二转印位置处与中间转印体分离，以仅使用第一图像形成单元形成单色图像，并且以全色模式在第二转印位置处接触中间转印体， 使用第一和第二图像形成单元形成全色图像。