Surface treated steel strip with minimal plating defects and method for
making
    1.
    发明授权
    Surface treated steel strip with minimal plating defects and method for making 失效
    具有最小电镀缺陷的表面处理钢带和制造方法

    公开(公告)号:US5447802A

    公开(公告)日:1995-09-05

    申请号:US157069

    申请日:1994-04-12

    摘要: In connection with a process of implementing galvanizing and galvannealing on steel strips containing highly oxidizable elements such as Si, Mn, P, Ti, Nb, Al, Ni, Cu, Mo, V, Cr, and B, after annealing in a continuous line or implementing electroplating after annealing, the present invention provides a method for restraining non-plating at low cost in a stable manner and a surface treated steel strip having minimal non-plating. By applying on at least one surface of a steel strip a Fe plating having a coating weight of 0.1-10 g/m.sup.2 and an oxygen content of 0.1-10 wt %, followed by annealing and then zinc or zinc alloy plating, there is obtained a surface treated steel strip having minimal plating defects which includes a Fe plating layer immediately below a zinc or zinc alloy plating layer and a steel alloying element concentrated stratum immediately below the Fe plating layer. The Fe plating may be formed using an electroplating bath which contains 0.1-10 g/l of Fe.sup.3+ and a carboxylic acid or an alkali metal salt thereof.

    摘要翻译: PCT No.PCT / JP93 / 00394 Sec。 371日期1994年04月12日 102(e)日期1994年4月12日PCT 1993年3月30日PCT公布。 公开号WO93 / 20254 日期:1993年10月14日。关于在含有高度可氧化元素如Si,Mn,P,Ti,Nb,Al,Ni,Cu,Mo,V,Cr和B的钢带上实施镀锌和镀锌合金的过程 在退火后连续退火或实施电镀后,本发明提供了一种以低成本稳定地抑制非电镀的方法和具有最小非电镀的表面处理钢带的方法。 通过在钢带的至少一个表面上涂布涂布重量为0.1-10g / m 2,氧含量为0.1-10wt%的Fe镀层,然后进行退火,然后进行锌或锌合金镀覆 具有最小电镀缺陷的表面处理钢带,其包括在锌或锌合金镀层正下方的Fe镀层和紧邻Fe镀层下方的钢合金元素浓缩层。 可以使用含有0.1-10g / l Fe 3+和羧酸或其碱金属盐的电镀浴形成Fe镀层。

    Aluminum alloy sheet with improved formability and method of production
    3.
    发明授权
    Aluminum alloy sheet with improved formability and method of production 失效
    具有改善成型性和生产方法的铝合金板

    公开(公告)号:US5322741A

    公开(公告)日:1994-06-21

    申请号:US30412

    申请日:1993-04-16

    摘要: The invention provides an aluminum alloy sheet having improved formability, an elongation of at least 30%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising an aluminum alloy substrate containing at least 4 wt % of Mg and a Fe rich plating layer on a surface thereof in a coating weight of 1 to 50 g/m.sup.2. Also provided is a bake hardenable, surface treated aluminum alloy sheet having improved formability, an elongation of at least 25%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising a bake hardenable aluminum alloy substrate containing Mg and Si in an amount of at least 0.4 wt % calculated as Mg.sub.2 Si and a Fe rich plating layer on a surface thereof in coating weight of 1 to 50 g/m.sup.2. By forming a zincate layer as an undercoat below the Fe rich plating layer, the plating adhesion is further improved. The preferred Fe rich plating layer is a Fe-Zn alloy plating layer containing 20 to 80 wt % of Zn for corrosion resistance improvement. A Fe-Zn alloy plating layer containing 30 to 40 wt % of Zn meets both formability and corrosion resistance.

    摘要翻译: PCT No.PCT / JP92 / 00931 Sec。 371日期:1993年04月16日 102(e)日期1993年4月16日PCT提交1992年7月22日PCT公布。 第WO93 / 02225号公报 日本公开1993年2月4日。本发明提供一种铝合金板,其具有改进的成形性,伸长率至少为30%,滑动摩擦阻力高达0.13,并且滑动摩擦阻力的表面压力依赖性最小化,包括含有 表面上含有至少4重量%的Mg和富Fe镀层,涂层重量为1〜50g / m 2。 还提供了具有改进的成型性,至少25%的伸长率,至多0.13的滑动摩擦阻力和最小化的滑动摩擦阻力的表面压力依赖性的烘烤可硬化的表面处理的铝合金板,其包括含有 Mg和Si的量为至少0.4重量%,其表面上的Mg 2 Si和Fe富镀层的涂层重量为1至50g / m 2。 通过在富Fe镀层下形成作为底涂层的锌酸盐层,进一步提高镀层附着力。 优选的富Fe镀层是含有20〜80重量%的Zn以提高耐腐蚀性的Fe-Zn合金镀层。 含有30〜40重量%Zn的Fe-Zn合金镀层满足成型性和耐腐蚀性。

    Galvannealed steel sheet and manufacturing method
    4.
    发明授权
    Galvannealed steel sheet and manufacturing method 失效
    热镀锌钢板及其制造方法

    公开(公告)号:US06368728B1

    公开(公告)日:2002-04-09

    申请号:US09437671

    申请日:1999-11-10

    IPC分类号: B32B1501

    摘要: Galvannealed steel sheet and method, made by applying hot-dip galvanizing to a steel sheet, heating at a heating rate of at least about 10° C./second to a maximum sheet temperature within a range of from about 470 to 550° C., and applying an alloying treatment; the Al content XAl% in the hot-dip galvannealing layer and the coating weight W g/m2 satisfy the following equation (1); thereby producing a Zn—Fe galvannealing layer having an iron content of from about 7 to 12%; the galvannealed steel sheet has intensities of &zgr;-phase, &dgr;1-phase and &Ggr;-phase that satisfy the following equations (4) and (5) as observed through X-ray diffraction with the galvannealing layer peeled off the galvannealed steel sheet at the galvannealing/steel sheet interface, and the galvannealed steel sheet having excellent press workability, having a whiteness and a glossiness within prescribed ranges: 5≦W×(XAl−0.12)≦15  (1) I(&zgr;:1.26)/I(&dgr;1:2.13)≦0.02  (4) I(&Ggr;:2.59)/I(&dgr;1:2.13)≦0.1  (5).

    摘要翻译: 通过对钢板进行热浸镀锌而制成的热浸镀锌钢板和方法,以至少约10℃/秒的加热速度加热到最大板温度在约470〜550℃的范围内。 ,并进行合金化处理; 热浸镀锌层中的Al含量XAl%和涂布重量W g / m2满足下式(1)。 从而制造铁含量为约7-12%的Zn-Fe合金化合金层; 合金化热镀锌钢板具有如下的等式(4)和(5)的强度:z相,δ1相和Ggr相,如通过X射线衍射所观察到的,合金化退火层从合金化热镀锌钢板上剥离 合金化退火/钢板界面以及具有优异的压制加工性的合金化热浸镀锌钢板,其白度和光泽度在规定范围内:

    High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them
    6.
    发明授权
    High strength thin steel sheet, high strength alloyed hot-dip zinc-coated steel sheet, and method for producing them 有权
    高强度薄钢板,高强度合金化热镀锌钢板及其制造方法

    公开(公告)号:US06410163B1

    公开(公告)日:2002-06-25

    申请号:US09555339

    申请日:2000-05-30

    IPC分类号: B32B1501

    摘要: The present invention provides a high strength thin excellent workability and galvanizability, having a composition comprising from 0.01 to 0.20 wt. % C, up to 1.0 wt. % Si, from 1.0 to 3.0 wt. % Mn, up to 0.10 wt. % P, up to 0.05 wt. % S, up to 0.10 wt. % Al, up to 0.010 wt. % N, up to 1.0 wt. % Cr, from 0.001 to 1.00 wt. % Mo, and the balance Fe and incidental impurities, wherein a band structure comprising a secondary phase has a thickness satisfying the relation Tb/T≦0.005 (where, Tb: average thickness of the band structure in the thickness direction of steel sheet; T: steel sheet thickness), and a manufacturing method thereof, and a manufacturing method of a high strength hot-dip galvanized steel sheet or a high strength galvannealed steel sheet applying hot-dip galvanizing or further galvannealing, and giving an excellent workability, a high tensile strength, and excellent galvanizability, coating adhesion and corrosion resistance.

    摘要翻译: 本发明提供高强度的优异的加工性和镀锌性,其组成包含0.01至0.20wt。 %C,高达1.0wt。 %Si,1.0〜3.0wt。 %Mn,至多0.10wt。 %P,高达0.05wt。 %S,高达0.10wt。 %Al,最高0.010wt。 %N,至多1.0wt。 %Cr,0.001〜1.00wt。 %Mo,余量为Fe和附带杂质,其中包含二次相的带结构的厚度满足Tb / T <= 0.005(其中,Tb:钢带厚度方向上带状结构的平均厚度) T:钢板厚度)及其制造方法,以及采用热浸镀锌或进一步合金化处理的高强度热浸镀锌钢板或高强度合金化热浸镀锌钢板的制造方法,赋予优异的加工性, 高拉伸强度,优异的镀锌性,涂层附着力和耐腐蚀性。

    METHOD FOR DESIGNING MATERIAL TO BE SUBJECTED TO CYLINDER FORMING AND PRODUCT FORMED BY PERFORMING CYLINDER FORMING
    8.
    发明申请
    METHOD FOR DESIGNING MATERIAL TO BE SUBJECTED TO CYLINDER FORMING AND PRODUCT FORMED BY PERFORMING CYLINDER FORMING 审中-公开
    将材料设计成圆筒形成的方法和通过执行气缸成型形成的产品

    公开(公告)号:US20130327116A1

    公开(公告)日:2013-12-12

    申请号:US13994103

    申请日:2011-12-13

    IPC分类号: B21C37/06

    摘要: An object of the present invention is to provide a method for designing a metal material having mechanical properties with which a specified spring back angle can be achieved after any one of metal materials having a wide variety of mechanical properties and thicknesses has been formed by performing cylinder forming and a product formed by using the method. A method for designing a material to be subjected to cylinder forming, the method including, in the design of a metal material to be subjected to cylinder forming in which the metal material is formed by performing bending forming, calculating the yield strength YP, the Young's modulus E and the thickness t of the metal material so that a spring back angle Δθ becomes a specified value when cylinder forming is performed under conditions of a radius of curvature of bending r of 5 mm or more and a bending angle θ of 90 degrees or more and 180 degrees or less and designing the metal material so that the metal material has the calculated yield strength YP and Young's modulus E.

    摘要翻译: 本发明的目的是提供一种用于设计具有机械特性的金属材料的方法,在具有各种各样的机械性能和厚度的金属材料中的任何一种之后,通过执行圆柱体 形成和使用该方法形成的产品。 一种用于设计要进行圆筒形成的材料的方法,所述方法包括在设计要进行成形的金属材料,其中通过弯曲成形形成金属材料,计算屈服强度YP,杨氏 模量E和金属材料的厚度t,使得当在弯曲曲率半径为5mm以上且弯曲角度θ为90度的条件下进行气缸成形时,弹簧后视角Deltatheta变为规定值,或 多于180度或更小,并且设计金属材料,使得金属材料具有计算的屈服强度YP和杨氏模量E.