Blister-resistant steel sheet and method for producing thereof
    1.
    发明授权
    Blister-resistant steel sheet and method for producing thereof 失效
    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

    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。

    Continously annealed cold-rolled steel sheet excellent in balance
between deep drawability and resistance to secondary-work embrittlement
and method for manufacturing same
    2.
    发明授权
    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
    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

    IPC分类号: C21D8/04 C22C38/14

    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。

    Method for manufacturing an ultra-high strength cold-rolled steel sheet
with desirable delayed fracture resistance
    3.
    发明授权
    Method for manufacturing an ultra-high strength cold-rolled steel sheet with desirable delayed fracture resistance 失效
    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

    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。

    Steel sheet for excellent panel appearance and dent resistance after
panel-forming
    5.
    发明授权
    Steel sheet for excellent panel appearance and dent resistance after panel-forming 失效
    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

    IPC分类号: C22C38/12 C22C38/14 B32B15/01

    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

    Method for producing non-oriented steel sheets
    6.
    发明授权
    Method for producing non-oriented steel sheets 失效
    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

    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.

    Method of making non-oriented magnetic steel strips
    7.
    发明授权
    Method of making non-oriented magnetic steel strips 失效
    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

    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。

    Steel sheet for 2-piece battery can having excellent formability, anti
secondary work embrittlement and corrosion resistance
    8.
    发明授权
    Steel sheet for 2-piece battery can having excellent formability, anti secondary work embrittlement and corrosion resistance 失效
    用于2片电池的钢板可以具有优异的成形性,抗二次加工脆性和耐腐蚀性

    公开(公告)号:US6126759A

    公开(公告)日:2000-10-03

    申请号:US913642

    申请日:1997-10-09

    IPC分类号: C22C38/00 C22C38/06 H01M2/02

    摘要: This invention is to provide a steel sheet for 2-piece battery cans, which has excellent formability in DI molding to give thin-walled, side body parts, and, more preferably, a steel sheet for 2-piece battery cans, which, after having been formed into cans, has high mechanical strength and excellent anti-secondary work embrittlement with excellent corrosion resistance. The steel sheet for 2-piece battery cans of the invention contains S and O (where O is the total oxygen content) while satisfying the conditions that S is from 0.005 to 0.015 wt. %, preferably from 0.005 to 0.012 wt. %, that 0 is from 0 to 0.0025 wt. % and that [S/10+O].ltoreq.0.0035 wt. %, preferably [S/10 +0].ltoreq.0.0030 wt. %. More preferably, the steel sheet contains B of from 0.0005 to 0.0015 wt. % while satisfying 0.2.ltoreq.B/N.ltoreq.1.0, or contains either one or both of Cr of being from 0.03 to 0.10 wt. % and Ni of being from 0.01 to 0.10 wt. %, the total of the two being not larger than 0.10 wt. %. The both surfaces of the steel sheet may be plated with Ni or an Fe--Ni alloy in order to ensure more excellent corrosion resistance of the steel sheet.

    摘要翻译: PCT No.PCT / JP97 / 00327 Sec。 371 1997年10月9日第 102(e)1997年10月9日PCT PCT 1997年2月7日提交PCT公布。 公开号WO97 / 29217 日本特开1997年8月14日本发明是提供一种用于2片电池罐的钢板,其在DI成型中具有优异的成形性,得到薄壁侧体部件,更优选为2片电池 罐成型后,具有高机械强度和优异的抗二次加工脆性,耐腐蚀性优异。 本发明的2片电池罐用钢板含有S和O(O为总氧含量),同时满足S为0.005〜0.015重量%的条件。 %,优选0.005-0.012wt。 %,0为0〜0.0025wt。 %,[S / 10 + O] = 0.0035wt。 %,优选[S / 10 + 0] = 0.0030wt。 %。 更优选钢板含有0.0005〜0.0015wt。 %,同时满足0.2≤B/N≤1.0,或者包含0.03至0.10重量%的Cr之一或两者。 %和Ni为0.01〜0.10wt。 %,两者的总和不大于0.10wt。 %。 为了确保钢板的更优异的耐腐蚀性,钢板的两面可镀Ni或Fe-Ni合金。

    Method of making non-oriented electrical steel sheets having excellent
magnetic properties
    10.
    发明授权
    Method of making non-oriented electrical steel sheets having excellent magnetic properties 失效
    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

    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。