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1. 发明授权

US5531839A Continously annealed cold-rolled steel sheet excellent in balance between deep drawability and resistance to secondary-work embrittlement and method for manufacturing same 失效
标题翻译：深冲性和二次加工脆性的平衡性优异的连续退火冷轧钢板及其制造方法
公开(公告)号：US5531839A
公开(公告)日：1996-07-02
申请号：US407011
申请日：1995-03-28
申请人： Yoshihiro Hosoya , Masaya Morita , Seishi Tsuyama
发明人： Yoshihiro Hosoya , Masaya Morita , Seishi Tsuyama
IPC分类号： C21D8/04 , C22C38/14
CPC分类号： C22C38/14 , C21D8/0426 , C21D8/0436 , C21D8/0473
摘要： A continuously annealed cold-rolled steel sheet excellent in balance between deep drawability and resistance to secondary-work embrittlement, which consists essentially of: under 0.0030 wt. % carbon, up to 0.05 wt. % silicon, from 0.05 to 0.20 wt. % manganese, up to 0.02 wt. % phosphorus, up to 0.15 wt. % sulfur, from 0.025 to 0.06 wt. % soluble aluminum, up to 0.0030 wt. % nitrogen, from 0.02 to 0.10 wt. % titanium, from 0.0003 to 0.0010 wt. % boron, and the balance being iron and incidental impurities, where a value of an index (X) representing a content rate of titanium to boron, as calculated by specific formulae, is of from 9.2 to 11.2. The above-mentioned continuously annealed cold-rolled steel sheet is manufactured by: carrying out a finishing-rolling in a hot-rolling of a steel slab having the above-mentioned chemical composition so that a reduction rate distribution function (Y) as expressed by another specific formula is satisfied; completing the finishing-rolling at a temperature of from 880.degree. to 920.degree. C.; then coiling the resultant hot-rolled steel strip; then cold-rolling the hot-rolled steel strip at an accumulative reduction rate of at least 70%; and then continuously annealing the resultant cold-rolled steel strip in a temperature region of from 750.degree. C. to an Ac.sub.3 transformation point.
摘要翻译： PCT No.PCT / JP94 / 01663 Sec。 371日期：1995年3月28日 102（e）1995年3月28日PCT PCT 1994年10月5日PCT公布。公开号WO95 / 09931 日期：1995年04月13日。一种连续退火的冷拉伸性能优异的深冲性和耐二次加工脆性之间的平衡，其基本上由以下组成：0.0030wt。％碳，至多0.05重量％％硅，0.05〜0.20wt。％锰，至多0.02重量％％磷，至多0.15重量％％硫，0.025〜0.06重量％％可溶性铝，至多0.0030wt。％氮，0.02〜0.10wt。％钛，0.0003〜0.0010重量％％硼，余量为铁和附带杂质，其中代表由特定公式计算的钛与硼的含量比的指数（X）为9.2至11.2。上述连续退火冷轧钢板是通过以下方式制造的：在具有上述化学成分的钢坯的热轧中进行精轧，使得如下所示的减速率分布函数（Y）如另外一个具体的公式是满足的; 在880°至920°C的温度下完成精轧。然后卷取所得热轧钢带; 然后以至少70％的累积减速率冷轧热轧钢带; 然后在750℃的温度区域中将所得到的冷轧钢带连续退火至Ac 3相变点。

2. 发明授权

US5542996A Method for manufacturing an ultra-high strength cold-rolled steel sheet with desirable delayed fracture resistance 失效
$Method for manufacturing an ultra-high strength cold-rolled steel sheet with desirable delayed fracture resistance$
标题翻译：制造具有期望的耐断裂性的超高强度冷轧钢板的方法
公开(公告)号：US5542996A
公开(公告)日：1996-08-06
申请号：US199254
申请日：1994-03-04
申请人： Yasunobu Nagataki , Seishi Tsuyama , Yoshihiro Hosoya , Tomoyoshi Okita , Shuzi Kanetoh , Yasuyuki Takada
发明人： Yasunobu Nagataki , Seishi Tsuyama , Yoshihiro Hosoya , Tomoyoshi Okita , Shuzi Kanetoh , Yasuyuki Takada
IPC分类号： C22C38/04 , C22C38/06 , C21D9/46 , C22C38/58
CPC分类号： C22C38/06 , C22C38/04
摘要： A method for manufacturing an ultra-high-strength cold-rolled steel sheet having desirable delayed fracture resistance, which comprises: preparing a material consisting essentially of 0.1 to 0.25 wt. % carbon, up to 1 wt. % silicon, 1 to 2.5 wt. % manganese, up to 0.020 wt. % phosphorus, up to 0.005 wt. % sulfur, 0.01 to 0.05 wt. % soluble aluminum, 0.0010 to 0.0050 wt. % nitrogen, optionally at least one of Nb, Ti or V, optionally at least one of Cu, Ni, B, Cr or Mo, the balance being iron and incidental impurities; subjecting the material to a hot rolling, a pickling and a cold rolling to prepare a cold-rolled steel sheet; and subjecting the cold-rolled steel sheet to a continuous heat treatment which comprises: subjecting the cold-rolled steel sheet to a soaking treatment at a temperature of Ac.sub.3 to 900.degree. C. for 30 seconds to 15 minutes, quenching the cold-rolled steel sheet at a quenching rate of at least 400.degree. C./second from a temperature of at least a lower limit temperature (T.sub.Q) for starting quenching as expressed by the following formula to a temperature of up to 100.degree. C.: T.sub.Q (.degree.C.)=600+800.times.C+(20.times.Si+12.times.Mo+13.times.Cr)-(30.times.Mn+8.times.Cu+7.times.Ni+5000.times.B), wherein C, Si, Mo, Cr, Mn, Cu, Ni and B are respectively weight percents for carbon, silicon, molybdenum, chromium, manganese, copper, nitrogen and boron, and tempering the cold-rolled steel sheet at a temperature of 100.degree. C. to 300.degree. C. for 1 to 15 minutes.
摘要翻译： PCT No.PCT / JP94 / 00038 Sec。 371日期1994年3月4日 102（e）1994年3月4日PCT 1994年1月13日PCT PCT。出版物WO94 / 16115 日期1994年7月21日制造具有期望的耐断裂性的超高强度冷轧钢板的方法，其包括：制备基本上由0.1〜0.25重量％％碳，至多1重量％％硅，1〜2.5wt。％锰，至多0.020重量％％磷，至多0.005重量％％硫，0.01〜0.05wt。％可溶性铝，0.0010〜0.0050重量％％氮，任选至少一种Nb，Ti或V，任选至少一种Cu，Ni，B，Cr或Mo，余量为铁和杂质; 对该材料进行热轧，酸洗和冷轧以制备冷轧钢板; 对该冷轧钢板进行连续热处理，其特征在于，将所述冷轧钢板在Ac3〜900℃的温度下均热处理30秒〜15分钟，冷却所述冷轧钢板从至少下限温度（TQ）至少下降温度（TQ）至少为400℃/秒的淬火速度，如下式所示，温度高达100℃：TQ（DEG （30xMn + 8xCu + 7xNi + 5000xB），其中C，Si，Mo，Cr，Mn，Cu，Ni和B分别为碳，硅，钼，铬，锰，铜，氮和硼，并在100℃至300℃的温度下回火冷轧钢板1至15分钟。

3. 发明授权

US5356493A Blister-resistant steel sheet and method for producing thereof 失效
标题翻译：耐水疱钢板及其制造方法
公开(公告)号：US5356493A
公开(公告)日：1994-10-18
申请号：US86507
申请日：1993-07-01
申请人： Seishi Tsuyama , Yoshihiro Hosoya , Shuji Kanetoh , Daijiro Koyanagi , Hiromi Nakamura , Satoshi Kohira
发明人： Seishi Tsuyama , Yoshihiro Hosoya , Shuji Kanetoh , Daijiro Koyanagi , Hiromi Nakamura , Satoshi Kohira
IPC分类号： C22C38/14 , C21P8/04 , C22C38/06
CPC分类号： C22C38/14
摘要： Blister-resistant steel sheet consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, 0.6 wt. % or less Si, 0.07 wt. % or less P, 0.025 wt. % or less S, 0.02 to 0.06 wt. % of sol. Al, 0.0035 wt. % or less N, 0.003 wt. % or less O, [(48/14)N+(48/32)S+4.times.(48/12)C] wt. % or less Ti and the balance being Fe and inevitable impurities; and smaller one of either Ti (wt. %) or [(48/14)N+(48/32)S] (wt. %) being [0.002 t.sup.2 +0.003] or more, where t is a thickness (mm) of the steel sheet. Method for producing blister-resistant steel sheet comprises preparing a cold rolled steel sheet having the composition of described above, and continuously annealing or continuous hot dip galvanizing by heating the steel sheet from room temperature to 650.degree.-720.degree. C. at a rate of 20.degree. C. sec or more and further to the soaking temperature above recrystallization temperature at a rate of 1.degree.-5.degree. C./sec.
摘要翻译：防水钢板基本上由0.0005〜0.003重量％％C，0.10〜2.2重量％％Mn，0.6重量％％以下Si，0.07重量％％以下P，0.025重量％％以下S，0.02〜0.06重量％％的溶胶。 Al，0.0035wt。％以下N，0.003重量％％或更少的O，[（48/14）N +（48/32）S + 4x（48/12）C] Ti％以下，余量为Fe和不可避免的杂质; Ti（重量％）或[（48/14）N +（48/32）S]（重量％）中的较小的一个为[0.002t2 + 0.003]或更大，其中t是钢板。制造耐泡性钢板的方法包括制备具有上述组成的冷轧钢板，并且通过将钢板从室温加热至650-720℃，连续退火或连续热浸镀锌，速率为 20℃以上，进一步在1℃〜5℃/秒的重结晶温度以上的均热温度。

4. 发明授权

US06689229B2 High strength cold rolled steel sheet and method for manufacturing the same 有权
标题翻译：高强度冷轧钢板及其制造方法
公开(公告)号：US06689229B2
公开(公告)日：2004-02-10
申请号：US10122860
申请日：2002-04-15
申请人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
发明人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
IPC分类号： C21D802
CPC分类号： C22C38/12 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A high strength cold rolled steel sheet consists essentially of 0.0040 to 0.01% C, not more than 0.05% Si, 0.1 to 1.0% Mn, 0.01 to 0.05% P, not more than 0.02% S, 0.01 to 0.1% sol.Al, not more than 0.004% N, 0.01 to 0.14% Nb, by weight, and a balance of substantially Fe and inevitable impurities, and having an n value of not less than 0.21 calculated from two points (1% and 10%) of nominal strain determined by the uniaxial tensile test, and a method for manufacturing the cold rolled steel sheet. The high strength cold rolled steel sheet has excellent combined formability, resistance to embrittlement during secondary operation, formability at welded portions, and anti-burring performance, and has a desirable surface appearance and uniformity of material in a coil, and thus can be desirably used for automobile exterior panels.
摘要翻译：高强度冷轧钢板主要由0.0040〜0.01％的C，不大于0.05％的Si，0.1〜1.0％的Mn，0.01〜0.05％的P，不大于0.02％的S，0.01〜0.1％的溶胶，Al，不超过0.004％的N，0.01〜0.14％的Nb，以及余量基本上为Fe和不可避免的杂质，并且由标称应变的两个点（1％和10％）计算出的n值不小于0.21 通过单轴拉伸试验确定，以及冷轧钢板的制造方法。高强度冷轧钢板具有优异的组合成形性，二次加工中的脆性耐受性，焊接部的成形性和抗起毛性，并且具有优选的线圈材料的表面外观和均匀性，因此可以理想地使用用于汽车外部面板。

5. 发明授权

US06524726B1 Cold-rolled steel sheet and galvanized steel sheet, which are excellent in formability, panel shapeability, and dent-resistance, and method of manufacturing the same 有权
标题翻译：成形性，面板成型性，耐凹陷性优异的冷轧钢板和镀锌钢板及其制造方法
公开(公告)号：US06524726B1
公开(公告)日：2003-02-25
申请号：US09446708
申请日：1999-12-23
申请人： Fusato Kitano , Masaya Morita , Yoshihiro Hosoya , Takeshi Fujita , Tadashi Inoue , Masahiro Iwabuchi , Takeo Ishii
发明人： Fusato Kitano , Masaya Morita , Yoshihiro Hosoya , Takeshi Fujita , Tadashi Inoue , Masahiro Iwabuchi , Takeo Ishii
IPC分类号： C22C3812
CPC分类号： C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D8/0478 , C22C38/004 , C22C38/04 , C22C38/12 , C23C2/02 , Y10T428/12799
摘要： Disclosed is a cold-rolled steel sheet excellent in formability, panel shapeability and dent-resistance, comprising 0.005 to 0.015% by weight of C, 0.01 to 0.2% by weight of Si, 0.2 to 1.5% by weight of Mn, 0.01 to 0.07% by weight of P, 0.006 to 0.015% by weight of S, 0.01 to 0.08% by weight of sol. Al, not higher than 0.004% by weight of N (N≦0.004%), not higher than 0.003% by weight of O (O≦0.003%), 0.04 to 0.23% by weight of Nb, 1.0≦(Nb %×12)/(C %×93)≦3.0, and a balance of Fe and unavoidable impurities, said cold-rolled steel sheet meeting the relationship given below: exp(&egr;)×(5.29×exp(&egr;)−4.19)≦&sgr;/&sgr;0.2≦exp(&egr;)×(5.64×exp(&egr;)−4.49) where 0.002
摘要翻译：公开了一种成型性，面板成型性和耐摔性优异的冷轧钢板，其含有0.005〜0.015重量％的C，0.01〜0.2重量％的Si，0.2〜1.5重量％的Mn，0.01〜0.07 P，0.006〜0.015重量％的S，0.01〜0.08重量％的溶胶。 Al，不高于0.004重量％的N（N <0.004％），不高于0.003重量％的O（O <0.003％），0.04〜0.23重量％的Nb，1.0 <=（Nb ％x12）/（C％x93）<= 3.0，余量为Fe和不可避免的杂质，所述冷轧钢板满足下列关系：其中0.002 <= 0.096，εi表示真应变σσ。 2表示0.2％的屈服应力，σ表示相对于epsi的真实应力。

6. 发明授权

US06494969B1 High strength cold rolled steel sheet and method for manufacturing the same 有权
公开(公告)号：US06494969B1
公开(公告)日：2002-12-17
申请号：US09631600
申请日：2000-08-03
申请人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
发明人： Takeshi Fujita , Fusato Kitano , Yoshihiro Hosoya , Toru Inazumi , Yuji Yamasaki , Masaya Morita , Yasunobu Nagataki , Kohei Hasegawa , Hiroshi Matsuda , Moriaki Ono
IPC分类号： C22C3840
CPC分类号： C22C38/12 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06
摘要： The present invention relates to a very low C—Nb cold rolled steel sheet giving 340 to 440 MPa of tensile strength. For example, the cold rolled steel sheet consists essentially of 0.0040 to 0.01% C, not more than 0.05% Si, 0.1 to 1.0% Mn, 0.01 to 0.05% P, not more than 0.02% S, 0.01 to 0.1% sol.Al, not more than 0.004% N, 0.01 to 0.14% Nb, by weight, and balance of substantially Fe and inevitable impurities, and has not less than 0.21 of n value calculated from two points (1% and 10%) of nominal strain determined by the uniaxial tensile test, and relates to a method for manufacturing the cold rolled steel sheet. The present invention provides a high strength cold rolled steel sheet for automobile exterior panels having excellent combined formability, resistance to embrittlement during secondary operation, formability at welded portions, anti-burring performance, good surface appearance, and uniformity of material in a coil.

7. 发明授权

US08815025B2 High strength steel excellent in uniform elongation properties and method of manufacturing the same 有权
标题翻译：均匀伸长性优异的高强度钢及其制造方法
公开(公告)号：US08815025B2
公开(公告)日：2014-08-26
申请号：US11592613
申请日：2006-11-03
申请人： Takeshi Yokota , Akio Kobayashi , Kazuhiro Seto , Yoshihiro Hosoya , Thomas Heller , Brigitte Hammer , Rolf Bode , Günter Stich
发明人： Takeshi Yokota , Akio Kobayashi , Kazuhiro Seto , Yoshihiro Hosoya , Thomas Heller , Brigitte Hammer , Rolf Bode , Günter Stich
IPC分类号： C22C38/06 , C22C38/12 , C22C38/14 , C21D8/02 , C22C38/04
CPC分类号： C21D8/0226 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： A high strength steel, including about 0.05 to about 0.25% of C, less than about 0.5% of Si, about 0.5 to about 3.0% of Mn, not more than about 0.06% of P, not more than about 0.01% of S, about 0.50 to about 3.0% of Sol. Al, not more than about 0.02% of N, about 0.1 to about 0.8% of Mo, about 0.02 to about 0.40% of Ti, and the balance of iron and unavoidable impurities, wherein the steel has a structure formed of at least three phases including a bainite phase, and a retained austenite phase in addition to a ferrite phase having a composite carbide containing Ti and Mo dispersed and precipitated therein, wherein the total volume of the ferrite phase and the bainite phase is not smaller than 80%, the volume of the bainite phase is about 5% to about 60%, and the volume of the retained austenite phase is about 3 to about 20%.
摘要翻译：一种高强度钢，包括约0.05至约0.25％的C，小于约0.5％的Si，约0.5至约3.0％的Mn，不大于约0.06％的P，不大于约0.01％的S，约0.50至约3.0％的Sol。 Al，不大于约0.02％的N，约0.1至约0.8％的Mo，约0.02至约0.40％的Ti，余量为铁和不可避免的杂质，其中钢具有由至少三相形成的结构包括贝氏体相和残留奥氏体相以及其中分散有析出Ti和Mo的复合碳化物的铁素体相，其中铁素体相和贝氏体相的总体积不小于80％，体积的贝氏体相为约5％至约60％，并且残余奥氏体相的体积为约3至约20％。

8. 发明授权

US5853903A Steel sheet for excellent panel appearance and dent resistance after panel-forming 失效
标题翻译：板材外观优异，板材成型后耐凹陷性好
公开(公告)号：US5853903A
公开(公告)日：1998-12-29
申请号：US847896
申请日：1997-04-28
申请人： Yoshihiro Hosoya , Fusato Kitano , Yasunobu Nagataki
发明人： Yoshihiro Hosoya , Fusato Kitano , Yasunobu Nagataki
IPC分类号： C22C38/12 , C22C38/14 , B32B15/01
CPC分类号： C22C38/12 , C22C38/14 , Y10T428/12868
摘要： A cold-rolled steel sheet or a zinc or zinc alloy layer coated steel sheet containing 0.0010 to 0.01 wt % of C and having a steel composition containing one or two kinds of 0.005 to 0.08 wt % of Nb and 0.01 to 0.07 wt % of Ti in the ranges given by {(12/93)Nb+(12/48)Ti*} .gtoreq.0.0005, 0.ltoreq.C-{(12/93)Nb+(12/48)Ti*}.ltoreq.0.0015, and Ti*=Ti-{(48/32)S+(48/14)N } , in which a bake hardenability BH f the steel sheet at 170.degree. C..times.20 min after 2% tensile prestrain is 10 to 35 MPa and the BH (MPa) and a yield strength YP (MPa) of the steel sheet satisfy the ranges given by BH.gtoreq.exp(-0.115.multidot.YP+23.0) and 0.67.multidot.BH+160.ltoreq.YP.ltoreq.-0.8.multidot.BH+280.
摘要翻译：含有0.0010〜0.01重量％的C，含有Nb或0.005〜0.08重量％的Nb和0.01〜0.07重量％的Ti的钢组合物的冷轧钢板或锌或锌合金层被覆钢板在{（12/93）Nb +（12/48）Ti *}> = 0.0005,0.0- =（（12/93）Nb +（12/48）Ti *} = 0.0015的范围内，Ti * = Ti-{（48/32）S +（48/14）N}，其中在2％拉伸预应变之后，170℃×120分钟钢板的烘烤淬透性BH f为10〜35MPa，钢板的BH（MPa）和屈服强度YP（MPa）满足由BH> / = exp（-0.115×YP + 23.0）和0.67×BH + 160

9. 发明授权

US5116435A Method for producing non-oriented steel sheets 失效
标题翻译：生产非面向钢板的方法
公开(公告)号：US5116435A
公开(公告)日：1992-05-26
申请号：US330926
申请日：1989-03-27
申请人： Akihiko Nishimoto , Yoshihiro Hosoya , Toshiaki Urabe
发明人： Akihiko Nishimoto , Yoshihiro Hosoya , Toshiaki Urabe
IPC分类号： B21B3/02 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/06
CPC分类号： C22C38/02 , C21D8/1222 , C22C38/06
摘要： A method for producing a non-oriented electrical steel sheet with precise thickness and homogeneous magnetic property comprising the steps of: making a steel ingot which has: 0.01 wt. % or less C, 0.003 wt. % or less N, 0.01 to 1.0 wt. % Mn, Al and Si satisfying, in wt. %, the formulas of: ##EQU1## provided that (Si %) represents the Si (wt. %) and (Al %) represents Al content (wt. %), and the balance being Fe and inevitable impurities to produce a steel slab; hot-rolling the slab at a finishing temperature of 700.degree. to 900.degree. C. into a steel strip and coiling the hot rolled strip; and cold-rolling the hot-rolled strip into a cold-rolled strip, followed by annealing the cold-rolled strip.

10. 发明授权

US5108521A Method of making non-oriented magnetic steel strips 失效
标题翻译：制造非定向磁钢条的方法
公开(公告)号：US5108521A
公开(公告)日：1992-04-28
申请号：US747381
申请日：1991-08-20
申请人： Yoshihiro Hosoya , Akihiko Nishimoto , Toshiaki Urabe
发明人： Yoshihiro Hosoya , Akihiko Nishimoto , Toshiaki Urabe
IPC分类号： C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , H01F1/16
CPC分类号： C21D8/1222 , C21D8/1272
摘要： For enabling the manufacture of non-oriented steel strips by HDR, the amounts of AlN and MnS which precipitate on the way of HDR are decreased to such a level that they do not affect the magnetic properties by regulating the Al and S contents, and further unavoidable precipitating nitrides are precipitated as coarse BN. With regard to the steel composition, the amounts of C, Si and P are not only regulated, but also the amounts of Mn, Al, S and N are regulated from the above standpoint, and a proper amount of B is added if required. In addition, in regard to treatment conditions, in order to secure necessary finishing and coiling temperatures, the lower limit of the slab temperature at the starting time of HDR is specified. Moreover, to secure precipitation of BN and recrystallization of a ferrite structure, the lower limits of the finishing and coiling temperatures are specified. Furthermore, to secure the magnetic properties after cold rolling, the strips are finally continuously annealed at the determined temperature.
摘要翻译：为了能够通过HDR制造未取向钢带，在HDR路径上沉淀的AlN和MnS的量降低到通过调节Al和S含量而不影响磁性的水平，进一步不可避免的沉淀氮化物作为粗大BN沉淀。关于钢组成，C，Si和P的量不仅受到限制，而且从上述观点考虑，调节Mn，Al，S和N的量，如果需要，则添加适量的B。此外，关于处理条件，为了确保必要的精加工和卷取温度，规定了在HDR的开始时刻的板坯温度的下限。此外，为了确保BN的析出和铁素体结构的再结晶，规定了精加工和卷取温度的下限。此外，为了确保冷轧后的磁性能，最终在确定的温度下连续退火。

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