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    • 1. 发明授权
    • Hot rolled steel sheets and method of producing the same
    • 热轧钢板及其制造方法
    • US5853503A
    • 1998-12-29
    • US817947
    • 1997-04-28
    • Kazuhiro SetoKei SakataOsamu FurukimiTakashi Obara
    • Kazuhiro SetoKei SakataOsamu FurukimiTakashi Obara
    • B21B1/22B21B1/26B21B45/08C21D8/02C22C38/00C22C38/06C22C38/14C22C38/04
    • C22C38/06B21B45/08C21D8/0226C21D8/0278B21B1/227B21B1/26
    • After a starting material of steel comprising C: 0.001-0.20 wt %, Si: 0.01-0.50 wt %, Mn: 0.05-2.0 wt %, P: not more than 0.05 wt %, S: not more than 0.05 wt %, sol.Al: 0.01-0.10 wt %, N: not more than 0.020 wt % and the balance being Fe and inevitable impurities is heated above AC.sub.3 point, rough rolling is completed within a temperature range of (Ar.sub.3 point+100.degree. C.)-(Ar.sub.3 point+50.degree. C.), and super-high pressure descaling is carried out under conditions satisfying a jetting pressure of not less than 25 kgf/cm.sup.2 and a liquid quantity density of not less than 0.002 liter/cm.sup.2, and subsequently finish rolling at a rolling reduction of not less than 80% above Ar.sub.3 point of a rolling completion temperature is started in 5 seconds and coiling is carried out below 700.degree. C., whereby hot rolled steel sheets having a surface roughness Ra of not more than 0.8 .mu.m and an average scale thickness of not more than 4 .mu.m is produced and the adhesion property in case of subjecting to shaping at a mill scale state and the pickling efficiency in case of applying to pickling are improved.
    • PCT No.PCT / JP96 / 02455 Sec。 371日期1997年04月28日 102(e)日期1997年4月28日PCT提交1996年8月30日PCT公布。 出版物WO97 / 08355 日期1997年3月6日在C:0.001-0.20重量%,Si:0.01-0.50重量%,Mn:0.05-2.0重量%,P:不大于0.05重量%的钢的起始原料之后,S:不大于 0.05重量%,sol.Al:0.01-0.10重量%,N:不大于0.020重量%,余量为Fe和不可避免的杂质被加热到AC3以上,在(Ar3点+ 100)的温度范围内完成粗轧 ℃) - (Ar3点+ 50℃),超高压除鳞在满足不低于25kgf / cm 2的喷射压力和不小于0.002升/分钟的液体密度的条件下进行, cm2,然后在5秒钟内开始轧制完成温度以上Ar3以上80%以上的压延成形,在700℃以下进行卷取,得到具有表面粗糙度Ra的热轧钢板 不大于0.8μm,平均刻度厚度不大于4μm,并且在经受t o在轧制规模状态下成型,并且在施加酸洗的情况下的酸洗效率得到改善。
    • 3. 发明授权
    • Coated seizure-hardening type cold-rolled steel sheet having excellent aging resistance and method of production thereof
    • 耐老化性优异的涂布硬化型冷轧钢板及其制造方法
    • US06171412B2
    • 2001-01-09
    • US09194533
    • 1998-11-25
    • Saiji MatsuokaMasahiko MoritaOsamu FurukimiTakashi ObaraTetsuya KiyasuYoshio Yamazaki
    • Saiji MatsuokaMasahiko MoritaOsamu FurukimiTakashi ObaraTetsuya KiyasuYoshio Yamazaki
    • C21D800
    • C22C38/14C21D8/02C21D8/0426C21D8/0431C21D8/0436C21D8/0473C22C38/12
    • Disclosed are bake-hardenable sheet steel with good anti-aging property and a method for producing it. While controlling its C, P, S and N contents, the chemical composition of the sheet steel is defined to comprise not larger than 1.0% of Si, not larger than 3.0% of Mn, from 0.01 to 0.20% of Al and from 0.001 to 0.2% of Ti, in terms of % by weight. The value A (=(AIQUENCH−AI)/AIQUENCH) of the sheet steel is defined to be not smaller than 0.4 and the value AIQUENCH thereof to be not smaller than 30; or the ratio of the mean misorientation, M (degree), to the mean grain size, G (&mgr;m), M/G, of the sheet steel is defined to be not smaller than 0.8. The steel may additionally contain from 0.001 to 0.2% of Nb and/or from 0.0001 to 0.0080% of B. While controlling its Si, Mn, S, Al and N contents, the chemical composition of a steel slab is defined to comprise from 0.005 to 0.02% of C, not larger than 0.05% of P and from 0.025 to 0.19% of Nb, with satisfying the condition of 0.7×(C/12)≦Nb/93≦1.2×(C/12) (where C indicates the C content (wt. %), and Nb indicates the Nb content (wt. %)). To produce bake-hardenable sheet steel from it, the slab is heated, hot-rolled at a finishing delivery temperature of from 960 to 650° C., coiled at a temperature of from 750 to 400° C., then cold-rolled to a reduction of from 50 to 95%, and thereafter annealed for recrystallization at a temperature of from 750 to 920° C. The slab may additionally contain B and/or Ti. The invention stably produces bake-hardenable sheet steel on an industrial scale.
    • 公开了具有良好抗老化性能的可烘烤硬化性钢板及其制造方法。 在控制其C,P,S和N含量的同时,将钢板的化学成分定义为不大于1.0%的Si,不大于Mn的3.0%,Al的0.01至0.20%和0.001至 0.2%Ti,以重量%计。 将钢板的值A(=(AIQUENCH-AI)/ AIQUENCH)定义为不小于0.4且其AIQUENCH值不小于30; 或平均取向度M(度)与平均晶粒尺寸G(mum),M / G的比值定义为不小于0.8。 钢可以另外含有0.001-0.2%的Nb和/或0.0001-0.0080%的B。在控制其Si,Mn,S,Al和N含量的同时,钢坯的化学组成定义为包含0.005 至0.02%的C,不大于0.05的P和0.025至0.19%的Nb,满足0.7x(C / 12)<= Nb / 93 <= 1.2×(C / 12)的条件(其中 C表示C含量(重量%),Nb表示Nb含量(重量%))。 为了从其制造可烘烤硬化的钢板,在960〜650℃的最终输送温度下对板坯进行加热,热轧,在750〜400℃的温度下卷取,然后冷轧至 减少50至95%,然后在750至920℃的温度下退火再结晶。板可以另外含有B和/或Ti。 本发明在工业规模上稳定地生产可烘烤硬化钢板。
    • 4. 发明授权
    • Cold rolled steel sheet and method of making
    • 冷轧钢板及其制造方法
    • US6027581A
    • 2000-02-22
    • US935600
    • 1997-09-23
    • Kazunori OsawaMasahiko MoritaOsamu FurukimiTakashi Obara
    • Kazunori OsawaMasahiko MoritaOsamu FurukimiTakashi Obara
    • C21D8/04C21D9/48C22C38/00C22C38/06C22C38/14
    • C21D8/0426C21D9/48C22C38/001C22C38/06C22C38/14
    • Cold rolled steel sheet with excellent deep drawability and excellent anti-aging properties, and manufacturing method. The cold rolled steel sheet comprises about C: above 0.015 to 0.150 wt %, Si: 1.0 wt % or less, Mn: 0.01 to 1.50 wt %, P: 0.10 wt % or less, S: 0.003 to 0.050 wt %, Al: 0.001 to below 0.010 wt %, N: 0.0001 to 0.0050 wt %, Ti: 0.001 wt % or more and Ti(wt %)/[1.5.times.S(wt %)+3.4.times.N(wt %)].ltoreq.about 1.0 and B: about 0.0001 to 0.0050 wt %, during annealing, grain growth is improved; Ti is added to form a nitride and a sulfide to avoid precipitation of fine TiC; B is added to precipitate Boron precipitates (Fe.sub.2 B, Fex(C,B)y) in a cooling the hot rolled steel sheet and in cooling step during annealing after cold rolling; a spherical cementite is precipitated and grown in which the Boron series precipitate is a precipitation site.
    • 具有优异的深冲性和优异的抗老化性能的冷轧钢板及其制造方法。 冷轧钢板的C:大于0.015〜0.150重量%,Si:1.0重量%以下,Mn:0.01〜1.50重量%,P:0.10重量%以下,S:0.003〜0.050重量%,Al: 0.001〜0.010重量%,N:0.0001〜0.0050重​​量%,Ti:0.001重量%以上,Ti(重量%)/ [1.5×S(重量%)+ 3.4×N(重量%)] B:约0.0001〜0.0050重​​量%,退火时晶粒生长提高; 添加Ti以形成氮化物和硫化物以避免细小TiC的沉淀; 加入B以冷却热轧钢板并在冷轧后退火时的冷却步骤中沉淀硼析出物(Fe2B,Fex(C,B)y) 析出并生长球状渗碳体,其中硼系沉淀是沉淀点。
    • 6. 发明授权
    • Thin steel sheet having excellent rectangular drawability and production
method thereof
    • 具有优异的矩形拉伸性的薄钢板及其制造方法
    • US6103394A
    • 2000-08-15
    • US029716
    • 1998-03-03
    • Kaneharu OkudaYoshikazu KawabataKei SakataTakaaki HiraAtsushi OginoTakashi Obara
    • Kaneharu OkudaYoshikazu KawabataKei SakataTakaaki HiraAtsushi OginoTakashi Obara
    • B21B3/00B21C1/00B21D22/20C21D8/04C21D9/00C21D9/48C22C38/00C22C38/60
    • B21B3/00B21C1/00B21D22/20C21D8/04C21D9/00C21D9/48C22C38/00C22C38/60Y10T428/12229
    • A thin steel sheet having excellent rectangular drawability is produced by completing roughing rolling of steel containing C: 0.02 wt % or less, Si: 0.5 wt % or less, Mn: 1.0 wt % or less, P: 0.15 wt % or less, S: 0.02 wt % or less, Al: 0.01 to 0.10 wt %, N: 0.008 wt % or less, at least one of Ti: 0.001 to 0.20 wt % and Nb: 0.001 to 0.15 wt %, the balance comprising Fe, and inevitable impurities, in the temperature region of 950.degree. C. to the Ar.sub.3 transformation temperature: performing finish rolling at a reduction of over 70% under lubrication in the temperature region of the Ar.sub.3 transformation temperature to 500.degree. C.; pickling the sheet; annealing the resultant hot rolled sheet under conditions which satisfy the equations (1) and (2) below:(T+273) (20+log t).gtoreq.2.50.times.10.sup.4 (1)745.ltoreq.T.ltoreq.920 (2)wherein T: hot rolled sheet annealing temperature (.degree. C.)t: hot rolled sheet annealing time (sec); cold rolling at a reduction of 50 to 95%; and then recrystallization annealing; to satisfy the following relations:(r.sub.L +r.sub.C)/2-r.sub.D .gtoreq.0.67, and(r.sub.L +2r.sub.D +r.sub.C)/4.gtoreq.2.7,wherein r.sub.L : Lankford value in the rolling direction, r.sub.D : Lankford value in the direction at 45.degree. with the rolling direction, and r.sub.C : Lankford value in the direction perpendicular to the rolling direction.
    • PCT No.PCT / JP97 / 04336 Sec。 371日期1998年3月3日 102(e)1998年3月3日PCT 1997年11月27日PCT PCT。 公开号WO98 / 28457 日期:1998年7月2日通过对C:0.02重量%以下,Si:0.5重量%以下,Mn:1.0重量%以下,P:0.15重量%以下的钢进行粗轧,制造具有优异的矩形拉伸性的薄钢板 %以下,S:0.02重量%以下,Al:0.01〜0.10重量%,N:0.008重量%以下,Ti:0.001〜0.20重量%,Nb:0.001〜0.15重量%中的至少一种,余量 包括Fe和不可避免的杂质,在950℃至Ar3相变温度的范围内:在Ar3转变温度至500℃的温度区域内,在润滑下进行精制轧制70%以上。 酸洗板 (T + 273)(20 + log t)> / = 2.50×104(1)745 / = 0.67,(rL + 2rD + rC)/ 4> / = 2.7,其中rL:轧制方向的兰克福德值,rD:兰克福德值 方向为45°,轧制方向,rC:兰克福德值在垂直于轧制方向的方向。
    • 7. 发明授权
    • Production of a base steel sheet to be surface-treated which is to
produce no stretcher strain
    • 生产不需要担架的表面处理的基础钢板
    • US4586965A
    • 1986-05-06
    • US739623
    • 1985-05-31
    • Takashi ObaraKazunori OsawaMinoru NishidaKei SakataHideo Kuguminato
    • Takashi ObaraKazunori OsawaMinoru NishidaKei SakataHideo Kuguminato
    • C22C38/00C21D8/02C21D9/46C22C38/06
    • C22C38/06C21D8/0236C21D8/0226C21D8/0268
    • Disclosed herein is a method of manufacturing a base steel sheet, which method comprises combined steps of: not rolling a steel slab containing not more than 0.0070% by weight of C (hereinafter referred to briefly as "%"), not more than 0.1% of Si, not more than 0.5% of Mn, 0.010 to 0.080% of Al, not more than 0.0050% of N, not more than 0.030% of S provided that the ratio of Mn/S is not less than 10, and not more than 0.030% of P while the hot rolling being terminated at a finish temperature of not less than 800.degree. C.; cold rolling thus obtained hot rolled steel sheet in an ordinary manner; continuously annealing the cold rolled steel sheet in which heating is done up to a temperature from a recrystallization temperature to 800.degree. C., followed by cooling; and then temper rolling the annealing steel sheet at a reduction of not less than 7% by using two or more stand rolling mill, whereby the thus obtained base sheet, to be surface-treated may be utilized for a tinplate or a tin free steel in which no stretcher strain is formed even after baking treatment.
    • 本发明公开了一种制造基体钢板的方法,该方法包括以下组合步骤:不轧制含有不大于0.0070重量%的C的钢板(以下简称为“%”),不大于0.1重量% 的Si,不超过0.5%的Mn,0.010〜0.080%的Al,不大于0.0050%的N,不大于0.030%的S,条件是Mn / S的比例不小于10,而不是更多 超过0.030%的P,而热轧终止温度不低于800℃。 以通常的方式冷轧如此获得的热轧钢板; 对进行加热的冷轧钢板进行连续退火至从再结晶温度至800℃的温度,然后冷却; 然后通过使用两台以上的立式轧机将退火钢板以不小于7%的压下率进行回火处理,由此得到的待表面处理的基材可以用于马口铁或不含锡的钢 即使在烘烤处理之后也不形成担架应变。
    • 10. 发明授权
    • IgA nephropathy testing method and test kit
    • IgA肾病检测方法及检测试剂盒
    • US08426142B2
    • 2013-04-23
    • US12995489
    • 2009-05-29
    • Takashi ObaraSadaaki Mizoguchi
    • Takashi ObaraSadaaki Mizoguchi
    • G01N33/53
    • G01N33/6854G01N33/6893G01N2800/347
    • There is provided a renal disease testing method comprising a complex detection step of detecting a complex of human uromodulin and human IgA in a sample derived from urine collected from a subject. It is preferred that the renal disease testing method of the invention further comprises a determination step of assessing the whether the renal disease is IgA nephropathy based on the ratio of the amount of the complex detected in the complex detection step to the amount of urinary proteins in the sample. The renal disease testing method of the invention has good detection sensitivity and specificity, and can conveniently and safely assess the existence of a renal disease (preferably, IgA nephropathy).
    • 提供了一种肾脏疾病测试方法,其包括在从受试者收集的尿中得到的样品中检测人尿调制蛋白和人IgA的复合物的复合物检测步骤。 优选本发明的肾脏疾病检测方法还包括以下步骤:基于复合物检测步骤检测到的复合物的量与尿蛋白质量的比例来评估肾脏疾病是否为IgA肾病的判定步骤 例子。 本发明的肾病检测方法具有良好的检测灵敏度和特异性,可以方便,安全地评估肾病(优选IgA肾病)的存在。