公开(公告)号：US07462250B2

公开(公告)日：2008-12-09

申请号：US10543513

申请日：2004-01-27

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Toshiyuki Kajitani ,  Wataru Yamada ,  Yoshitaka Nishikawa ,  Nariyasu Muroga ,  Nobuyuki Komiya

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Toshiyuki Kajitani ,  Wataru Yamada ,  Yoshitaka Nishikawa ,  Nariyasu Muroga ,  Nobuyuki Komiya

IPC分类号： C22C38/14 ,  C22C38/28 ,  C22C38/50

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/14 ,  C23C2/02

摘要： The present invention provides a high strength, high toughness steel wire rod useful for a PC steel wire, galvanized steel strands, spring use steel wire, cables for suspension bridges, etc. By hot rolling, then directly patenting or reaustenitizing, then patenting a high carbon steel wire rod of a specific chemical composition of the steel and chemical composition, size, and numerical density of inclusions, piano wire rod or high carbon steel wire rod having a structure of mainly pearlite, having an average value of the proeutectoid cementite area ratio of 5% or less in a center region of less than 20% of the wire rod diameter from the center of the wire rod, having a micromartensite size of the C section of 100 μm or less, having a tensile strength of the 170 kgf/mm2 class or more, and having a drawing ratio at break of 30% or more is obtained.

摘要翻译： 本发明提供一种用于PC钢丝，镀锌钢绞线，弹簧用钢丝，吊桥用电缆等的高强度，高韧性钢丝线。通过热轧，然后直接专利或再励化，然后专利高 碳钢线材具有特定化学成分的化学成分，化学成分，尺寸和数值密度的夹杂物，钢琴线材或高碳钢线材，其主要结构为珠光体，具有前共生渗碳体面积比的平均值 在从线材中心小于线材直径的20％的中心区域的5％以下的C区段的微米级尺寸为100mum以下，拉伸强度为170kgf / mm2以上，断裂拉伸比为30％以上。

公开(公告)号：US20060137776A1

公开(公告)日：2006-06-29

申请号：US10543513

申请日：2004-01-27

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Toshiyuki Kajitani ,  Wataru Yamada ,  Yoshitaka Nishikawa ,  Nariyasu Muroga ,  Nobuyuki Komiya

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Toshiyuki Kajitani ,  Wataru Yamada ,  Yoshitaka Nishikawa ,  Nariyasu Muroga ,  Nobuyuki Komiya

IPC分类号： C22C38/14

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/14 ,  C23C2/02

摘要： The present invention provides a high strength, high toughness steel wire rod useful for a PC steel wire, galvanized steel strands, spring use steel wire, cables for suspension bridges, etc. By hot rolling, then directly patenting or reaustenitizing, then patenting a high carbon steel wire rod of a specific chemical composition of the steel and chemical composition, size, and numerical density of inclusions, piano wire rod or high carbon steel wire rod having a structure of mainly pearlite, having an average value of the proeutectoid cementite area ratio of 5% or less in a center region of less than 20% of the wire rod diameter from the center of the wire rod, having a micromartensite size of the C section of 100 μm or less, having a tensile strength of the 170 kgf/mm2 class or more, and having a drawing ratio at break of 30% or more is obtained.

摘要翻译： 本发明提供一种用于PC钢丝，镀锌钢绞线，弹簧用钢丝，吊桥用电缆等的高强度，高韧性钢丝线。通过热轧，然后直接专利或再励化，然后专利高 碳钢线材具有特定化学成分的化学成分，化学成分，尺寸和数值密度的夹杂物，钢琴线材或高碳钢线材，其主要结构为珠光体，具有前共生渗碳体面积比的平均值 在从线材中心小于线材直径的20％的中心区域的5％以下的C区段的微米级尺寸为100mum以下，拉伸强度为170kgf / mm以上2级以上，断裂伸长率为30％以上。

公开(公告)号：US20110284139A1

公开(公告)日：2011-11-24

申请号：US13134210

申请日：2011-05-31

申请人： Seiki Nishida ,  Shingo Yamasaki ,  Hitoshi Demachi ,  Nariyasu Muroga ,  Shouichi Ohashi ,  Kenichi Nakamura ,  Makoto Kosaka ,  Nobuyuki Komiya ,  Susumu Sahara

发明人： Seiki Nishida ,  Shingo Yamasaki ,  Hitoshi Demachi ,  Nariyasu Muroga ,  Shouichi Ohashi ,  Kenichi Nakamura ,  Makoto Kosaka ,  Nobuyuki Komiya ,  Susumu Sahara

IPC分类号： C21D9/52 ,  C21D6/00

CPC分类号： C22C38/02 ,  B21B1/16 ,  C21D8/065 ,  C22C38/002 ,  C22C38/04 ,  C22C38/18 ,  D07B1/066

摘要： A high-carbon steel wire rod of high ductility for steel cord and the like is provided that experiences little breakage during drawing. The high-carbon steel wire rod of high ductility is a high-carbon steel wire rod fabricated by hot rolling that that has a carbon content of 0.7 mass % or greater, wherein 95% or greater of the wire rod metallographic structure is pearlite structure and the maximum pearlite block size of pearlite at the core of the hot-rolled wire rod is 65 μm or less. The high-carbon steel wire rod of high ductility has a tensile strength in a range of {248+980×(C mass %)}±40 MPa} and a reduction of area of {72.8−40×(C mass %) %} or greater. The high-carbon steel wire rod of high ductility is characterized in that the average pearlite block size at the core of the hot-rolled wire rod constituted by ferrite grain boundaries of an orientation difference of 9 degrees or greater as measured with an EBSP analyzer is 10 μm or greater and 30 μm or less.

摘要翻译： 提供了一种用于钢丝绳等的高延展性的高碳钢线材，其在拉拔过程中几乎不破裂。 高延展性的高碳钢线材是由碳含量为0.7质量％以上的热轧制成的高碳钢线材，其中线材金相组织的95％以上为珠光体组织， 热轧线材芯的珠光体的最大珠光体块大小为65μm以下。 高延展性的高碳钢线材的拉伸强度为{248 + 980×（C质量％）}±40MPa}，面积缩小为{72.8-40×（C质量％）％ }或更大。 高延展性的高碳钢线材的特征在于用EBSP分析仪测定的方位差为9度以上的铁素体晶界构成的热轧线材的芯部的平均珠光体块尺寸为 10μm以上且30μm以下。

公开(公告)号：US20090087336A1

公开(公告)日：2009-04-02

申请号：US11989676

申请日：2007-05-31

申请人： Seiki Nishida ,  Shingo Yamasaki ,  Hitoshi Demachi ,  Nariyasu Muroga ,  Shouichi Ohashi ,  Kenichi Nakamura ,  Makoto Kosaka ,  Nobuyuki Komiya ,  Susumu Sahara

发明人： Seiki Nishida ,  Shingo Yamasaki ,  Hitoshi Demachi ,  Nariyasu Muroga ,  Shouichi Ohashi ,  Kenichi Nakamura ,  Makoto Kosaka ,  Nobuyuki Komiya ,  Susumu Sahara

IPC分类号： C22C38/42 ,  C22C38/00

CPC分类号： C22C38/02 ,  B21B1/16 ,  C21D8/065 ,  C22C38/002 ,  C22C38/04 ,  C22C38/18 ,  D07B1/066

摘要： A high-carbon steel wire rod of high ductility for steel cord and the like is provided that experiences little breakage during drawing. The high-carbon steel wire rod of high ductility is a high-carbon steel wire rod fabricated by hot rolling that that has a carbon content of 0.7 mass % or greater, wherein 95% or greater of the wire rod metallographic structure is pearlite structure and the maximum pearlite block size of pearlite at the core of the hot-rolled wire rod is 65 μm or less. The high-carbon steel wire rod of high ductility has a tensile strength in a range of {248+980×(C mass %)}±40 MPa} and a reduction of area of {72.8−40×(C mass %) %} or greater. The high-carbon steel wire rod of high ductility is characterized in that the average pearlite block size at the core of the hot-rolled wire rod constituted by ferrite grain boundaries of an orientation difference of 9 degrees or greater as measured with an EBSP analyzer is 10 μm or greater and 30 μm or less.

摘要翻译： 提供了一种用于钢丝绳等的高延展性的高碳钢线材，其在拉拔过程中几乎不破裂。 高延展性的高碳钢线材是由碳含量为0.7质量％以上的热轧制成的高碳钢线材，其中线材金相组织的95％以上为珠光体组织， 热轧线材的芯部的珠光体的最大珠光体块尺寸为65μm以下。 具有高延展性的高碳钢线材具有{248 + 980×（C质量％）}±40MPa}的拉伸强度和{72.8-40×（C质量％）％）的面积的减小或 更大 高延展性的高碳钢线材的特征在于用EBSP分析仪测定的方位差为9度以上的铁素体晶界构成的热轧线材的芯部的平均珠光体块尺寸为 10个以上，30个以上。

公开(公告)号：US08859095B2

公开(公告)日：2014-10-14

申请号：US13131681

申请日：2010-11-04

申请人： Seiki Nishida ,  Nariyasu Muroga ,  Hitoshi Demachi

发明人： Seiki Nishida ,  Nariyasu Muroga ,  Hitoshi Demachi

IPC分类号： B32B15/00 ,  C21D8/06 ,  C22C38/04 ,  C22C38/18 ,  C22C38/02

CPC分类号： C22C38/02 ,  C21D8/06 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/04 ,  C22C38/18 ,  Y10T428/2913 ,  Y10T428/294 ,  Y10T428/2978

摘要： Provided is a wire rod contains, in mass %: C: 0.6 to 1.1%; Si: 0.1 to 0.5%; Mn: 0.2 to 0.6%; S: 0.004 to 0.015%; and, Cr: 0.02 to less than 0.05%; with a balance including Fe and inevitable impurities in which P is limited to 0.02% by mass or lower and Al is limited to 0.003% by mass or lower; the wire rod has a pearlite in a surface thereof; and, the wire rod has, in a peripheral portion in a cross section thereof, a {110} crystal plane of ferrite in the pearlite, an accumulation degree of the crystal plane being 1.2 or more.

摘要翻译： 本发明提供一种线材，其质量％：C：0.6〜1.1％ Si：0.1〜0.5％ Mn：0.2〜0.6％ S：0.004〜0.015％ Cr：0.02〜0.05％以下。 余量包括Fe和不可避免的杂质，其中P限制在0.02质量％以下，Al限制为0.003质量％以下; 线材在其表面具有珠光体; 该线材在其截面的周边部具有在珠光体中的铁氧体的{110}晶面，其结晶面的积累度为1.2以上。

公开(公告)号：US20110229718A1

公开(公告)日：2011-09-22

申请号：US13131681

申请日：2010-11-04

申请人： Seiki Nishida ,  Nariyasu Muroga ,  Hitoshi Demachi

发明人： Seiki Nishida ,  Nariyasu Muroga ,  Hitoshi Demachi

IPC分类号： B32B15/02 ,  B32B7/02 ,  C22C38/00

CPC分类号： C22C38/02 ,  C21D8/06 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/04 ,  C22C38/18 ,  Y10T428/2913 ,  Y10T428/294 ,  Y10T428/2978

摘要： Provided is a wire rod contains, in mass %: C: 0.6 to 1.1%; Si: 0.1 to 0.5%; Mn: 0.2 to 0.6% ; S: 0.004 to 0.015%; and, Cr: 0.02 to less than 0.05%; with a balance including Fe and inevitable impurities in which P is limited to 0.02% by mass or lower and Al is limited to 0.003% by mass or lower; the wire rod has a pearlite in a surface thereof; and, the wire rod has, in a peripheral portion in a cross section thereof, a {110} crystal plane of ferrite in the pearlite, an accumulation degree of the crystal plane being 1.2 or more.

摘要翻译： 本发明提供一种线材，其质量％：C：0.6〜1.1％ Si：0.1〜0.5％ Mn：0.2〜0.6％ S：0.004〜0.015％ Cr：0.02〜0.05％以下。 余量包括Fe和不可避免的杂质，其中P限制在0.02质量％以下，Al限制为0.003质量％以下; 线材在其表面具有珠光体; 该线材在其截面的周边部具有在珠光体中的铁氧体的{110}晶面，其结晶面的积累度为1.2以上。

公开(公告)号：US08168011B2

公开(公告)日：2012-05-01

申请号：US11922524

申请日：2007-04-18

申请人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

发明人： Shingo Yamasaki ,  Seiki Nishida ,  Makio Kikuchi

IPC分类号： C21D8/06 ,  C21D9/52 ,  C22C38/02 ,  C22C38/14 ,  C22C38/04

CPC分类号： C22C38/00 ,  C21D6/005 ,  C21D6/008 ,  C21D8/06 ,  C21D8/065 ,  C21D9/52 ,  C21D2211/002 ,  C21D2211/009

摘要： The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is heated in a specified temperature range to conduct post-reaustenization patenting and thereby obtain a high-carbon steel wire excellent in ductility that has a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and whose fracture reduction of area RA satisfies Expressions (1), (2) and (3) below: RA≧RAmin  (1), where RAmin=a−b×pearlite block size (μm), a=−0.0001187×TS (MPa)2+0.31814×TS (MPa)−151.32  (2) b=0.0007445×TS (MPa)−0.3753  (3).

摘要翻译： 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料，生产率高，成品率低，成本低。 将特定组成的硬质钢线材在规定的温度范围内加热，进行后改性化处理，得到具有97％以上的面积率的珠光体组织的延展性优异的高碳钢丝， 平衡的非珠光体结构包括贝氏体，退化珠光体和先共析铁素体，并且其区域RA的断裂减少满足下面的表达式（1），（2）和（3）：RA≥RAmin（1），其中RAmin = a -b×珠光体块尺寸（μm），a = -0.0001187×TS（MPa）2 + 0.31814×TS（MPa）-151.32（2）b = 0.0007445×TS（MPa）-0.3753（3）。

公开(公告)号：US08016953B2

公开(公告)日：2011-09-13

申请号：US10546330

申请日：2004-01-20

申请人： Shingo Yamasaki ,  Daisuke Hirakami ,  Toshimi Tarui ,  Seiki Nishida

发明人： Shingo Yamasaki ,  Daisuke Hirakami ,  Toshimi Tarui ,  Seiki Nishida

IPC分类号： C22C38/12

CPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/22 ,  C22C38/24 ,  C23C8/40

摘要： The invention provides a steel material with satisfactory hydrogen embrittlement resistance, and particularly it relates to high-strength steel with satisfactory hydrogen embrittlement resistance and a strength of 1200 MPa or greater, as well as a process for production thereof. At least one simple or compound deposit of oxides, carbides or nitrides as hydrogen trap sites which trap hydrogen with a specific trap energy is added to steel, where the mean sizes, number densities, and length-to-thickness ratios (aspect ratio) are in specific ranges. By applying the specific steel components and production process it is possible to obtain high-strength steel with excellent hydrogen embrittlement resistance.

摘要翻译： 本发明提供具有令人满意的耐氢脆性的钢材，特别涉及具有良好的耐氢脆性和1200MPa以上的强度的高强度钢及其制造方法。 将至少一种简单或复合的氧化物，碳化物或氮化物沉积物作为捕集具有特定阱能量的氢的氢捕集点添加到钢中，其中平均尺寸，数量密度和长度与厚度比（纵横比） 在特定范围内。 通过应用特定的钢部件和制造方法，可以获得耐氢脆性优异的高强度钢。

公开(公告)号：US20100239884A1

公开(公告)日：2010-09-23

申请号：US12293067

申请日：2007-12-10

申请人： Toshiyuki Manabe ,  Shingo Yamasaki ,  Seiki Nishida

发明人： Toshiyuki Manabe ,  Shingo Yamasaki ,  Seiki Nishida

IPC分类号： B32B15/02 ,  B32B15/01 ,  B23P17/00

CPC分类号： B21C1/003 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  Y10T29/49986 ,  Y10T428/12799 ,  Y10T428/2913 ,  Y10T428/2938 ,  Y10T428/2958

摘要： A plated steel wire for a parallel wire strand (PWS) with excellent twist properties can include, in terms of mass %, about 0.8 to 1.1% of C, about 0.8 to 1.3% of Si, about 0.3 to 0.8% of Mn, about 0.001 to 0.006% of N, and about 0.0004 to 0.0060% of B, where a quantity of solid-solubilized B is at least 0.0002%. Such exemplary wire can include either one or both of about 0.005 to 0.1% of Al and/or about 0.005 to 0.1% of Ti, and may contain, as the remainder, Fe and unavoidable impurities. For example, an area fraction of non-pearlite structures in a region from a surface layer down to a depth of about 50 μm is likely not more than about 10%, an area fraction of non-pearlite structures within an entire cross-section is likely not more than about 5%, and a surface of the steel wire can be galvanized with a plating quantity within a range from about 300 to 500 g/m2.

摘要翻译： 用于具有优异扭转性能的平行线股（PWS）的电镀钢丝可以包括以质量％计，约0.8-1.1％的C，约0.8至1.3％的Si，约0.3至0.8％的Mn，约 0.001〜0.006％的N，以及约0.0004〜0.0060％的B，其中固溶B的量为0.0002％以上。 这种示例性线材可以包括约0.005至0.1％的Al和/或约0.005至0.1％的Ti中的一种或两种，并且可以含有作为余量的Fe和不可避免的杂质。 例如，从表面层到深度约50μm的区域中的非珠光体组织的面积分数可能不大于约10％，整个横截面内的非珠光体组织的面积分数为 可能不大于约5％，并且电镀表面可镀锌量在约300至500g / m 2的范围内。

公开(公告)号：US09212410B2

公开(公告)日：2015-12-15

申请号：US12452816

申请日：2009-03-09

申请人： Shingo Yamasaki ,  Seiki Nishida

发明人： Shingo Yamasaki ,  Seiki Nishida

IPC分类号： C22C38/00 ,  C22C38/02 ,  C21D8/06 ,  C22C38/04 ,  C22C38/54

CPC分类号： C21D9/525 ,  B21C1/003 ,  C21D6/004 ,  C21D6/005 ,  C21D6/007 ,  C21D6/008 ,  C21D8/065 ,  C21D2211/009 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/30 ,  C22C38/32 ,  C22C38/54 ,  D07B1/066 ,  D07B2205/3035 ,  D07B2205/3057 ,  D07B2801/10

摘要： The present invention inexpensively provides with high productivity and good yield a steel rod superior in drawability and a steel wire superior in twistability using the same as a material, that is, draws a high strength steel rod superior in ductility where the chemical components contain C: 0.80 to 1.20%, Si: 0.1 to 1.5%, Mn: 0.1 to 1.0%, Al: 0.01% or less, Ti: 0.01% or less, one or both of W: 0.005 to 0.2% and Mo: 0.003 to 0.2%, N: 10 to 30 ppm, B: 4 to 30 ppm (of which, solute B is 3 ppm or more), and O: 10 to 40 ppm, which has a balance of Fe and unavoidable impurities, has an area percentage of pearlite structures of 97% or more, has a balance of non-pearlite structures, and has a total of the area percentage of the non-pearlite structures and the area percentage of the coarse pearlite structures of 15% or less, to obtain high strength steel wire superior in ductility having a tensile strength of 3600 MPa or more and a number density of voids of lengths of 5 μm or more at the center of 100/mm2 or less.

摘要翻译： 本发明通过使用与材料相同的弯曲性优异的拉伸性优良的钢棒和具有优异的延展性的高强度钢棒，其中化学成分含有C： 0.80〜1.20％，Si：0.1〜1.5％，Mn：0.1〜1.0％，Al：0.01％以下，Ti：0.01％以下，W：0.005〜0.2％，Mo：0.003〜0.2％ ，N：10〜30ppm，B：4〜30ppm（其中溶质B为3ppm以上）和余量为Fe和不可避免的杂质的O：10〜40ppm的面积百分比 具有97％以上的珠光体结构，具有非珠光体结构的平衡，并且总共有非珠光体组织的面积百分比和粗珠光体组织的面积百分比为15％以下，以获得高强度 在c的拉伸强度为3600MPa以上的延展性优异的钢丝的长度为5μm以上的空隙的数密度 输入100 / mm2以下。