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1. 发明授权

US06767417B2 Steel sheet and method for manufacturing the same 有权
标题翻译：钢板及其制造方法
公开(公告)号：US06767417B2
公开(公告)日：2004-07-27
申请号：US10255349
申请日：2002-09-26
申请人： Takeshi Fujita , Kenichi Mitsuzuka , Nobuyuki Nakamura , Toshiaki Urabe , Katsutoshi Ito , Hideyuki Tsurumaru
发明人： Takeshi Fujita , Kenichi Mitsuzuka , Nobuyuki Nakamura , Toshiaki Urabe , Katsutoshi Ito , Hideyuki Tsurumaru
IPC分类号： C22C3814
CPC分类号： C22C38/02 , C21D1/42 , C21D9/46 , C21D2211/003 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/14 , Y02P10/253
摘要： The present invention relates to a steel sheet that consists essentially of 0.10 to 0.37% C, 1% or less Si, 2.5% or less Mn, 0.1% or less P, 0.03% or less S, 0.01 to 0.1% sol.Al, 0.0005 to 0.0050% N, 0.0003 to 0.0050% B, by mass, and balance of Fe, [14B/(10.8N)] being 0.5 or more, average particle size of precipitate BN being 0.1 &mgr;m or more, and grain size of prior austenite after the hardening treatment being 2 to 25 &mgr;m. The steel sheet according to the present invention allows an inexpensive hardening treatment method to be applied to improve the strength to a level required for the structural components and the functional components of automobiles, while providing excellent toughness after the hardening treatment.
摘要翻译：本发明涉及一种钢板，其主要由0.10〜0.37％的C，1％以下的Si，2.5％以下的Mn，0.1％以下的P，0.03％以下的S，0.01〜0.1％的溶胶， 0.0005〜0.0050％N，0.0003〜0.0050％B，质量％，余量为Fe，[14B /（10.8N）]为0.5以上，析出物BN的平均粒径为0.1μm以上，硬化处理后的奥氏体为2〜25μm。根据本发明的钢板允许采用便宜的硬化处理方法，以提高强度达到汽车的结构部件和功能部件所需的水平，同时在硬化处理之后提供优异的韧性。

2. 发明授权

US06440584B1 Hot-dip galvanized steel sheet and method for producing the same 有权
标题翻译：热浸镀锌钢板及其制造方法
公开(公告)号：US06440584B1
公开(公告)日：2002-08-27
申请号：US09953788
申请日：2001-09-17
申请人： Yasunobu Nagataki , Toshiaki Urabe , Fusato Kitano , Akio Kobayashi , Kunikazu Tomita , Shunsaku Node , Kozo Harada , Shogo Sato , Toru Inazumi
发明人： Yasunobu Nagataki , Toshiaki Urabe , Fusato Kitano , Akio Kobayashi , Kunikazu Tomita , Shunsaku Node , Kozo Harada , Shogo Sato , Toru Inazumi
IPC分类号： B32B1518
CPC分类号： C21D8/0263 , C21D8/0278 , C21D9/56 , C21D2211/005 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/24 , C22C38/38 , C23C2/02 , C23C2/40 , Y10S428/939 , Y10T428/12799
摘要： A hot-dip galvanized steel sheet is produced by rough rolling a steel, finish rolling the rough rolled steel at a temperature of Ar3 point or more, coiling the finish rolled steel at a temperature of 700° C. or less, and hot-dip galvanizing the coiled steel at a pre-plating heating temperature of Ac1 to Ac3. A continuous hot-dip galvanizing operation is performed by soaking a pickled strip at a temperature of 750 to 850° C., cooling the soaked strip to a temperature range of 600° C. or less at a cooling rate of 1 to 50° C. per second, hot-dip galvanizing the cooled strip, and cooling the galvanized strip so that the residence time at 400 to 600° C. is within 200 seconds. The steel sheet has a structure consisting essentially of ferrite and martensite.
摘要翻译：热轧镀锌钢板通过粗轧制造，在Ar3点以上的温度下对粗轧制品进行精轧，在700℃以下的温度下卷取精轧辊，热浸镀锌钢板以预镀层加热温度Ac1〜Ac3镀锌钢卷。通过在750〜850℃的温度下浸渍酸洗条，进行连续热浸镀锌作业，将浸渍后的钢带以1〜50℃的冷却速度冷却至600℃以下的温度范围每秒，对冷却的条进行热浸镀锌，并冷却镀锌带，使得在400至600℃的停留时间在200秒内。钢板具有由铁素体和马氏体组成的结构。

3. 发明授权

US5169457A Method of making non-oriented electrical steel sheets 失效
标题翻译：制造无取向电工钢板的方法
公开(公告)号：US5169457A
公开(公告)日：1992-12-08
申请号：US432740
申请日：1989-10-17
申请人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
发明人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
IPC分类号： C21D8/12 , C22C38/00 , C22C38/06
CPC分类号： C21D8/1222 , C21D8/1261
摘要： A steel slab containing not more than 0.005 wt % carbon, 1.0 to 4.0 wt % silicon, 0.1 to 1.0 wt % manganese, not more than 0.1 wt % phosphorus, not more than 0.005 wt % sulfur, and 0.1 to 2.0 wt % aluminum is directly sent to a hot rolling step without brief soaking, whereby Al and N are made soluble with respect to species other than AlN inevitably precipitated during hot rolling, and uniform and coarse AlN precipitation is formed by a subsequent annealing treatment in which the hot rolled plate is soaked at a temperature of 800.degree. to 1000.degree. C. for a period of time t defined as exp (-0.018T+19.4) .ltoreq.t.ltoreq.exp (-0.022T+25.4) wherein T is the soaking temperature (.degree.C.) and t is the soaking time (minutes). Uniform and satisfactory ferrite grain growth at the recrystallization annealing is provided thereby.

4. 发明授权

US5116436A Method of making non-oriented electrical steel sheets having excellent magnetic properties 失效
标题翻译：制造具有优异磁性的非定向电工钢板的制造方法
公开(公告)号：US5116436A
公开(公告)日：1992-05-26
申请号：US476508
申请日：1990-06-13
申请人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
发明人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
IPC分类号： C21D8/12 , C22C38/00 , C22C38/06 , G02F1/135
CPC分类号： C21D8/1222
摘要： Non-oriented electrical steel sheets having excellent magnetic properties are produced by carrying out a coiling at a low temperature for monitoring the amount of scale generation; de-scaling after hot rolling; and annealing the de-scaled hot rolled sheet in a non-oxidizing atmosphere to thereby minimize the oxidation and nitriding during annealing the hot rolled sheet. By determining a higher heating temperature for hot rolling, a magnetic property (magnetic flux density) is improved, and the hot rolled sheet is subjected to an open coil-annealing and annealing conditions therefor are specified in order to perfectly precipitate re-solute AlN particles by this heating and fully coarsen AlN particles.
摘要翻译： PCT No.PCT / JP89 / 00440 Sec。 371日期1990年6月13日 102（e）日期1990年6月13日PCT 1989年4月26日PCT公布。 WO90 / 12897 PCT出版物 1990年11月1日。通过在低温下进行卷取来制造具有优异磁性的非取向电工钢板，用于监测规模生成量; 热轧后去垢; 并在非氧化性气氛中退火脱鳞热轧板，从而使热轧板退火时的氧化和氮化最小化。通过确定用于热轧的较高的加热温度，提高了磁性（磁通密度），并且对热轧板进行开放的线圈退火和规定退火条件以便完全沉淀再溶质AlN颗粒通过这种加热和完全粗化的AlN颗粒。

5. 发明授权

US5078809A Method for producing cold-rolled steel sheet 失效
标题翻译：生产冷轧钢板的方法
公开(公告)号：US5078809A
公开(公告)日：1992-01-07
申请号：US258481
申请日：1988-10-17
申请人： Masayuki Kinoshita , Akihiko Nishimoto , Toshiaki Urabe , Akira Sakamoto
发明人： Masayuki Kinoshita , Akihiko Nishimoto , Toshiaki Urabe , Akira Sakamoto
IPC分类号： C21D8/02 , C21D8/04 , C21D9/46 , C22C38/00 , C22C38/06
CPC分类号： H01L29/66712 , C21D8/0436 , C22C38/00 , C21D8/0426 , C21D8/0473
摘要： A method for producing cold-rolled steel sheets which comprises the steps of: producing slabs containing 0.001-0.003 wt. % C, 0.004 wt. % or less N and 0.03-0.20 wt. % P, providing that P(wt. %).times.N(wt. %).ltoreq.3.times.10.sup.-4 wt. % is satisfied; hot-rolling the slabs into hot-rolled steel strips; cold-rolling the hot-rolled steel strips at 60-95% reduction ratio into cold-rolled steel strips; and annealing continuously the cold-rolled strips at temperature of recrystallization temperature to Ac.sub.3 transformation point temperature. The slabs further include 0.0005-0.0030 wt. % B. The hot-rolling is performed at finishing temperature ranging Ar.sub.3 transfromation point to Ar.sub.3 transformation +100.degree. C., at cooling temperature of 750.degree. C. and less.
摘要翻译：一种冷轧钢板的制造方法，其特征在于，包括以下工序：制造含有0.001-0.003重量％％C，0.004wt。％或更少的N和0.03-0.20wt。％P，条件是P（wt。％）xN（wt。％）= 3×10 -4 wt。％满意; 将板坯热轧成热轧钢带; 将热轧钢带以60-95％的比例冷轧成冷轧钢带; 并在再结晶温度下将冷轧带材连续退火至Ac3相变点温度。板坯还包括0.0005-0.0030重量％％B。在Ar3转化温度至Ar3转变+100℃的终温度下，在750℃以下的冷却温度下进行热轧。

6. 发明授权

US5061321A Pickling method for electrical steel bands 失效
标题翻译：电动钢丝绳的选择方法
公开(公告)号：US5061321A
公开(公告)日：1991-10-29
申请号：US425179
申请日：1989-10-12
申请人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
发明人： Akihiko Nishimoto , Yoshihiro Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
IPC分类号： C21D8/12 , C23G1/00 , C23G1/08
CPC分类号： C23G1/08
摘要： The present invention provides a pickling method for electrical steel bands having excellent surface properties without requiring any especial treatment and increasing costs, where the pickling conditions of the hot rolled steel band are optimized not only in view of de-scaling properties but also interglanular corrosions, and the pickling is performed with hydrochloric acid for a period of a specified time determined by Si content of steel, temperature and HCl concentration of a pickling liquid.

7. 发明申请

US20070122554A1 Method for manufacturing galvannealed steel sheet 审中-公开
标题翻译：合金化热镀锌钢板的制造方法
公开(公告)号：US20070122554A1
公开(公告)日：2007-05-31
申请号：US10575054
申请日：2004-12-16
申请人： Hiroshi Matsuda , Shoichiro Taira , Keisuke Ono , Toshiaki Urabe , Yasunobu Nagataki , Yasushi Tanaka , Michitaka Sakurai , Yoshiharu Sugimoto
发明人： Hiroshi Matsuda , Shoichiro Taira , Keisuke Ono , Toshiaki Urabe , Yasunobu Nagataki , Yasushi Tanaka , Michitaka Sakurai , Yoshiharu Sugimoto
IPC分类号： B05D3/02
CPC分类号： C22C38/18 , B32B15/013 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/38 , C23C2/06 , C23C2/28
摘要： A galvannealed steel sheet is manufactured by preparing a hot-dip galvanized steel sheet, alloying the steel sheet, and controlling time and temperature for alloying thereof depending on Si and Al contents. The hot-dip galvanized steel sheet contains 0.05 to 0.30% C, 0.01 to 2.0% Si, 0.08 to 3.0% Mn, 0.003 to 0.1% P, 0 to 0.07% S, 0.01 to 2.5% Al, 0 to 0.007% N, by mass, and the balance being Fe and inevitable impurities. Alloying time and temperature are controlled by the formula [Si+Al≧1.5×10−7×t0.75×(T−465)3+0.117], where t is the total time (sec) of holding the sheet at 465° C. or more on alloying the coating layer thereon, and T is the average temperature (° C.) of the sheet during the total time t (sec) of holding the steel sheet at 465° C. or more on alloying the coating layer thereon.
摘要翻译：通过制备合金化钢板的热镀锌钢板，根据Si和Al含量控制其合金化的时间和温度来制造合金化热浸镀锌钢板。该热镀锌钢板含有0.05〜0.30％的C，0.01〜2.0％的Si，0.08〜3.0％的Mn，0.003〜0.1％的P，0〜0.07％的S，0.01〜2.5％的Al，0〜0.007％的N，，余量为Fe和不可避免的杂质。合金时间和温度由公式[Si + Al> = 1.5×10 -7 -7×0.75×（T-465）3 + 0.117]，其中t是在465℃或更高的时间将片材保持在其上的涂层上的总时间（秒），T是在总时间t内的片材的平均温度（℃）（℃）秒），使钢板在其上合金化时为465℃以上。

8. 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.

9. 发明授权

US5108522A Method of making non-oriented electrical steel sheets having excellent magnetic properties under low magnetic field 失效
标题翻译：制造低磁场下具有优异磁性的非定向电工钢板的制造方法
公开(公告)号：US5108522A
公开(公告)日：1992-04-28
申请号：US425183
申请日：1989-10-12
申请人： Akihiko Nishimoto , Yoshihara Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
发明人： Akihiko Nishimoto , Yoshihara Hosoya , Kunikazu Tomita , Toshiaki Urabe , Masaharu Jitsukawa
IPC分类号： C21D8/12 , C21D9/46 , C22C38/00 , C22C38/04
CPC分类号： C21D8/1272
摘要： The present invention is to produce non-oriented electrical steel sheets having excellent magnetic property under low magnetic field by effectively checking thermal stress from introducing during cooling in a final annealing without decreasing productivity, for which when a silicon steel sheet having passed a cold rolling is cooled after a final continuous annealing, especial cooling conditions are specified only to a temperature range giving bad influences to the magnetic properties under the low magnetic field so as to prevent the introduction of the thermal strain.

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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