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    • 2. 发明公开
    • Steel sheet excellent in workability and method for producing the same
    • Stahlplatte mit herausragender Umformbarkeit und Verfahren zu deren Herstellung
    • EP2415893A2
    • 2012-02-08
    • EP11186496.3
    • 2002-06-27
    • Nippon Steel Corporation
    • Yoshinaga, NaokiFujita, NobuhiroTakahashi, ManabuHashimoto, KojiSakamoto, ShinyaKawasaki, KaoruShinohara, YasuhiroSenuma, Takehide
    • C22C38/00C22C38/06C22C38/38C22C38/58C21D9/48C22C38/02C22C38/04C21D8/04C23C2/02C25D5/24
    • C22C38/02C21D8/0226C21D8/0236C21D8/04C21D9/48C21D2211/002C21D2211/008C22C38/001C22C38/002C22C38/04C22C38/06C23C2/02C25D5/34
    • The present invention provides a steel sheet excellent in workability, which is used for panels, undercarriage components, structural members and the like of an automobile, and a method for producing said steel sheet. More specifically, the present invention is: a steel sheet excellent in workability, characterized in that said steel sheet contains, in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, 0.05% or less S, 0.001 to 0.007% N and 0.008 to 0.2% Al, with the balance consisting of Fe and unavoidable impurities, and that said steel sheet has the average r-value of 1.2 or more, the r-value in the rolling direction (rL) of 1.3 or more, the r-value in the direction of 45 degrees to the rolling direction (rD) of 0.9 or more, and the r-value in the direction of a right angle to the rolling direction (rC) of 1.2 or more; further a steel sheet excellent in workability according to claim 1, characterized in that the ratios of the X-ray diffraction intensities in the orientation components of {111}, {100} and {110} to the random X-ray diffraction intensities strength on a reflection plane at the thickness center of said steel sheet are 2.0 or more, 1.0 or less and 0.2 or more, respectively; a steel pipe made of said steel sheet; and methods for producing said steel sheet and steel pipe.
    • 本发明提供一种用于汽车的面板,起落架部件,结构构件等的加工性优异的钢板,以及所述钢板的制造方法。 更具体地说,本发明是一种加工性优异的钢板,其特征在于,所述钢板以质量计含有0.08〜0.25%的C,0.001〜1.5%的Si,0.01〜2.0%的Mn,0.001〜0.06%的P, 0.05%以下的S,0.001〜0.007%的N和0.008〜0.2%的Al,余量由Fe和不可避免的杂质构成,所述钢板的平均r值为1.2以上,r值为 轧制方向(rL)为1.3以上,轧制方向(rD)为45度的r值为0.9以上,r方向为rC(rC) )为1.2以上; 2.根据权利要求1所述的加工性优异的钢板,其特征在于,{111},{100}和{110}的取向成分中的X射线衍射强度与随机X射线衍射强度强度之比 所述钢板的厚度中心处的反射面分别为2.0以上,1.0以下,0.2以上, 由所述钢板制成的钢管; 以及钢板和钢管的制造方法。
    • 3. 发明公开
    • Steel sheet excellent in workability and method for producing the same
    • 加工性优异的钢板及其制造方法
    • EP2415894A3
    • 2012-10-17
    • EP11186515.0
    • 2002-06-27
    • Nippon Steel Corporation
    • Yoshinaga, NaokiFujita, NobuhiroTakahashi, ManabuHashimoto, KojiSakamoto, ShinyaKawasaki, KaoruShinohara, YasuhiroSenuma, Takehide
    • C22C38/00C22C38/06C22C38/38C22C38/58C21D9/48C22C38/02C22C38/04C21D8/04C23C2/02C25D5/24
    • C22C38/02C21D8/0226C21D8/0236C21D8/04C21D9/48C21D2211/002C21D2211/008C22C38/001C22C38/002C22C38/04C22C38/06C23C2/02C25D5/34
    • The present invention provides a steel sheet excellent in workability, which is used for panels, undercarriage components, structural members and the like of an automobile, and a method for producing said steel sheet. More specifically, the present invention is: a steel sheet excellent in workability, characterized in that said steel sheet contains, in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, 0.05% or less S, 0.001 to 0.007% N and 0.008 to 0.2% Al, with the balance consisting of Fe and unavoidable impurities, and that said steel sheet has the average r-value of 1.2 or more, the r-value in the rolling direction (rL) of 1.3 or more, the r-value in the direction of 45 degrees to the rolling direction (rD) of 0.9 or more, and the r-value in the direction of a right angle to the rolling direction (rC) of 1.2 or more; further a steel sheet excellent in workability according to claim 1, characterized in that the ratios of the X-ray diffraction intensities in the orientation components of {111}, {100} and {110} to the random X-ray diffraction intensities strength on a reflection plane at the thickness center of said steel sheet are 2.0 or more, 1.0 or less and 0.2 or more, respectively; a steel pipe made of said steel sheet; and methods for producing said steel sheet and steel pipe.
    • 本发明提供一种用于汽车的面板,底盘部件,结构部件等的加工性优异的钢板及其制造方法。 更具体而言,本发明是一种加工性优良的钢板,其特征在于,所述钢板含有C:0.08〜0.25%,Si:0.001〜1.5%,Mn:0.01〜2.0%,P:0.001〜0.06% ,S:0.05%以下,N:0.001〜0.007%,Al:0.008〜0.2%,余量由Fe和不可避免的杂质构成,上述钢板的平均r值为1.2以上, 轧制方向(rL)为1.3以上,与轧制方向成45度的方向的r值(rD)为0.9以上,与轧制方向成直角的方向的r值(rC )为1.2或更高; 根据权利要求1所述的加工性优良的钢板,其特征在于,{111},{100}和{110}的取向成分中的X射线衍射强度相对于随机X射线衍射强度强度 所述钢板的厚度中心的反射面分别为2.0以上,1.0以下,0.2以上; 由所述钢板制成的钢管; 以及用于制造所述钢板和钢管的方法。
    • 4. 发明公开
    • Steel sheet excellent in workability and method for producing the same
    • Stahlplatte mit herausragender Umformbarkeit und Verfahren zu deren Herstellung
    • EP2415893A3
    • 2012-10-17
    • EP11186496.3
    • 2002-06-27
    • Nippon Steel Corporation
    • Yoshinaga, NaokiFujita, NobuhiroTakahashi, ManabuHashimoto, KojiSakamoto, ShinyaKawasaki, KaoruShinohara, YasuhiroSenuma, Takehide
    • C22C38/00C22C38/06C22C38/38C22C38/58C21D9/48C22C38/02C22C38/04
    • C22C38/02C21D8/0226C21D8/0236C21D8/04C21D9/48C21D2211/002C21D2211/008C22C38/001C22C38/002C22C38/04C22C38/06C23C2/02C25D5/34
    • The present invention provides a steel sheet excellent in workability, which is used for panels, undercarriage components, structural members and the like of an automobile, and a method for producing said steel sheet. More specifically, the present invention is: a steel sheet excellent in workability, characterized in that said steel sheet contains, in mass, 0.08 to 0.25% C, 0.001 to 1.5% Si, 0.01 to 2.0% Mn, 0.001 to 0.06% P, 0.05% or less S, 0.001 to 0.007% N and 0.008 to 0.2% Al, with the balance consisting of Fe and unavoidable impurities, and that said steel sheet has the average r-value of 1.2 or more, the r-value in the rolling direction (rL) of 1.3 or more, the r-value in the direction of 45 degrees to the rolling direction (rD) of 0.9 or more, and the r-value in the direction of a right angle to the rolling direction (rC) of 1.2 or more; further a steel sheet excellent in workability according to claim 1, characterized in that the ratios of the X-ray diffraction intensities in the orientation components of {111}, {100} and {110} to the random X-ray diffraction intensities strength on a reflection plane at the thickness center of said steel sheet are 2.0 or more, 1.0 or less and 0.2 or more, respectively; a steel pipe made of said steel sheet; and methods for producing said steel sheet and steel pipe.
    • 本发明提供一种用于汽车的面板,起落架部件,结构构件等的加工性优异的钢板,以及所述钢板的制造方法。 更具体地说,本发明是一种加工性优异的钢板,其特征在于,所述钢板以质量计含有0.08〜0.25%的C,0.001〜1.5%的Si,0.01〜2.0%的Mn,0.001〜0.06%的P, 0.05%以下的S,0.001〜0.007%的N和0.008〜0.2%的Al,余量由Fe和不可避免的杂质构成,所述钢板的平均r值为1.2以上,r值为 轧制方向(rL)为1.3以上,轧制方向(rD)为45度的r值为0.9以上,r方向为rC(rC) )为1.2以上; 2.根据权利要求1所述的可加工性优异的钢板,其特征在于,所述取向成分中的X射线衍射强度与所述厚度的反射面上的随机X射线衍射强度的比值为ä111ü,ä100ü和ä110ü 所述钢板的中心分别为2.0以上,1.0以下,0.2以上, 由所述钢板制成的钢管; 以及钢板和钢管的制造方法。