Method of making non-oriented electrical steel sheets having excellent
magnetic properties
    11.
    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:US5164024A

    公开(公告)日:1992-11-17

    申请号:US476507

    申请日:1990-06-13

    IPC分类号: C21D8/12 C22C38/00

    摘要: A method of producing non-oriented electrical steel sheets having excellent magnetic properties which comprehends heating a steel at the low temperature for hot rolling, thereby to minimize re-solution of AlN particles when a slab is cooled, so that coarsening of AlN particles is facilitated during annealing the hot rolled sheet; and coiling at low temperatures for controlling the amount of scale generation. De-scaling is perfectly accomplished after the hot rolling, and the hot rolled sheet is annealed in a non-annealing atmosphere, thereby to control the oxidation and the nitriding to a minimum during annealing the hot rolled sheet, and the annealing conditions of the hot rolled sheet are specified for proper coarsening of the cohesion, taking into consideration the magnetic properties and the economics.

    摘要翻译: PCT No.PCT / JP89 / 00439 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 / 12896 PCT出版物 日本1990年11月1日。一种制造具有优异磁性的无取向电工钢板的方法,其包括在低温下对钢进行热轧,从而使板坯冷却时AlN颗粒的再溶解最小化 在热轧板退火期间,AlN颗粒的粗化变得容易; 并在低温下卷取以控制氧化皮的产生量。 在热轧后完全脱模,热轧板在非退火气氛中进行退火,从而在热轧板退火时控制氧化和氮化至最小,热轧退火条件 考虑到磁性和经济性,轧制板被规定为适当的内聚力粗化。

    Method of making non-oriented silicon steel sheets having excellent
magnetic properties
    13.
    发明授权
    Method of making non-oriented silicon steel sheets having excellent magnetic properties 失效
    制造磁性优异的非取向硅钢板的方法

    公开(公告)号:US5009726A

    公开(公告)日:1991-04-23

    申请号:US427128

    申请日:1989-10-12

    IPC分类号: C21D8/12 C22C38/00 C22C38/06

    CPC分类号: C21D8/1222 C21D8/1261

    摘要: The present invention is to produce non-oriented silicon steel sheets having excellent magnetic properties in dependence upon a hot direct rolling, wherein the slab is directly sent to the direct rolling without maintaining the heat and soaking, whereby others than AlN precipitated during hot rolling check the precipitation of AlN, and a delay time is taken between the roughing and the finish rolling so that precipitating nuclei of AlN are introduced into the steel, and uniform and coarse AlN precipitation is formed by a subsequent annealing treatment, thereby to enable to provide uniform and satisfied ferrite grain growth at the recrystallization annealing.

    摘要翻译: PCT No.PCT / JP89 / 00232 Sec。 371日期:1989年10月12日 102(e)日期1989年10月12日PCT 1989年3月3日PCT公布。 出版物WO89 / 08151 日本1989年9月8日。本发明是根据热直接轧制制造具有优异磁性的无取向硅钢板,其中将板坯直接送入直接轧制而不保持热和浸泡,其他 在热轧过程中AlN析出后,检测出AlN的沉淀,粗加工与精轧之间延迟时间延长,使AlN的析出核导入钢中,通过后续退火处理形成均匀且粗大的AlN析出 从而能够在再结晶退火时提供均匀且满足的铁素体晶粒生长。

    Method of making non-oriented magnetic steel strips
    14.
    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:US5102478A

    公开(公告)日:1992-04-07

    申请号:US748180

    申请日:1991-08-20

    摘要: For enabling the making of non-oriented magnetic steel strips by direct rolling, the amounts of AlN and MnS which precipitate on the way of the direct rolling are decreased to such a level that they do not affect the magnetic properties by regulting the Al and S amounts, and further unavoidable precipitating nitrides are precipitated coarsely as BN. With regard to the steel composition, the amount 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 the direct rolling is specified. Moreover, to promote refining of ferrite, the upper limit of the finishing temperature is specified, and also to prevent non-uniform recrystallization after coiling, the upper limit of the coiling temperature is specified. Furthermore, to secure satisfied magnetic properties, the annealing of the hot rolled strip is performed under specific conditions determined by a soaking temperature and a soaking time. In addition, to secure the magnetic properties of the cold rolled strip, the strip is finally continuously annealed at determined temperatures.

    摘要翻译: 为了通过直接轧制制造无取向磁钢带,在直接轧制过程中沉淀的AlN和MnS的量减少到这样的水平,即它们不会通过抛光Al和S而影响磁性能 量,进一步不可避免的析出氮化物粗大地析出为BN。 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,规定了在直接轧制的起始时刻的板坯温度的下限。 此外,为了促进铁素体的精制,规定了终轧温度的上限,并且为了防止卷取后的不均匀的再结晶,规定了卷取温度的上限。 此外,为了确保满足的磁特性,热轧带材的退火在由均热温度和均热时间确定的特定条件下进行。 另外,为了确保冷轧带材的磁特性,最终在确定的温度下连续退火。

    Steel sheet for excellent panel appearance and dent resistance after
panel-forming
    16.
    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

    Steel sheet for 2-piece battery can having excellent formability, anti
secondary work embrittlement and corrosion resistance
    17.
    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。

    Continously annealed cold-rolled steel sheet excellent in balance
between deep drawability and resistance to secondary-work embrittlement
and method for manufacturing same
    18.
    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。