High-strength hot-dip galvanized steel sheet and method for producing the same
    1.
    发明申请
    High-strength hot-dip galvanized steel sheet and method for producing the same 有权
    高强度热浸镀锌钢板及其制造方法

    公开(公告)号:US20080053576A1

    公开(公告)日:2008-03-06

    申请号:US11977537

    申请日:2007-10-24

    IPC分类号: C23C2/28

    摘要: The present invention stably provides a high-strength hot-dip galvanized steel sheet having a high tensile strength and no non-plated portions and being excellent in workability and surface properties even when the employed equipment has only a reduction annealing furnace and a steel sheet containing relatively large amounts of Si, Mn and Al that are regarded as likely to cause non-plated portions is used as the substrate. The present invention: secures good plating performance even when the steel sheet contains Si, Mn and Al by adding Ni to a steel sheet, thus forming oxides at some portions in the steel sheet surface layer, and resultantly suppressing the surface incrassation of Si, Mn and Al at the portions where oxides are not formed; enhances the effect of Ni and accelerates the formation of oxides by further adding Mo, Cu and Sn; and moreover, in the case of a TRIP steel sheet, secures austenite by determining the ranges of Si and Al strictly, avoiding the deterioration of plating performance caused by the addition of Ni, and further adding Mo in a balanced manner. In addition, the present invention, in a TRIP steel sheet, improves press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating.

    摘要翻译: 本发明稳定地提供了具有高拉伸强度和无镀层部分的高强度热浸镀锌钢板,并且即使所用设备仅具有还原退火炉和含有 被认为可能引起非电镀部分的相对大量的Si,Mn和Al被用作衬底。 本发明:即使在钢板中含有Si,Mn和Al的钢板中也添加了Ni,从而在钢板表面层的某些部分形成氧化物,也可以确保良好的镀层性,从而抑制Si,Mn 和Al在不形成氧化物的部分; 通过进一步添加Mo,Cu和Sn,增强Ni的作用并加速氧化物的形成; 此外,在TRIP钢板的情况下,通过严格地确定Si和Al的范围来确保奥氏体,避免由于添加Ni而引起的电镀性能的劣化,并且进一步以平衡的方式添加Mo。 此外,本发明在TRIP钢板中,通过调节残留奥氏体比例,通过调节镀层前退火时的氢浓度和露点来促进氧化物的形成,提高冲压成形性。

    HIGH STRENGTH, HOT DIPPED GALVANIZED STEEL SHEET EXCELLENT IN SHAPEABILITY AND METHOD OF PRODUCTION OF SAME
    3.
    发明申请
    HIGH STRENGTH, HOT DIPPED GALVANIZED STEEL SHEET EXCELLENT IN SHAPEABILITY AND METHOD OF PRODUCTION OF SAME 有权
    高强度,热镀锌钢板具有优异的成型性及其生产方法

    公开(公告)号:US20130000796A1

    公开(公告)日:2013-01-03

    申请号:US13635805

    申请日:2011-03-31

    IPC分类号: B32B15/01 C21D8/02 C23C2/02

    摘要: High strength hot dipped galvanized steel sheet with little fluctuation in material quality at the time of production and excellent in shapeability is provided.By controlling the amount of addition of Ti instead of the addition of Nb or B, it is possible to obtain an effect of retarding recrystallization and grain growth even if annealing by a continuous annealing process in a temperature range of the general annealing temperature of 720° C. to a temperature of the lower of 800° C. or Ac3 temperature (easy annealing temperature region).Further, by controlling the rolling and heat treatment conditions, it is possible to control the ferrite phase rate, grain size of the low temperature transformed phases, ratio of average values of the nano hardnesses of the ferrite phase and low temperature transformed phases, and fluctuations of hardnesses of the low temperature transformed phases in a composite structure steel of ferrite and low temperature transformed phases and obtain high strength hot dipped galvanized steel sheet which has little fluctuation in material quality and is excellent in shapeability.

    摘要翻译: 提供了在制造时材料质量波动小且成形性优异的高强度热浸镀锌钢板。 通过控制Ti的添加量而不是添加Nb或B,即使在通常退火温度为720°的温度范围内通过连续退火工艺进行退火,也可以获得延迟再结晶和晶粒生长的效果 C.到800℃以下的温度或Ac3温度(容易退火温度区域)。 此外,通过控制轧制和热处理条件,可以控制铁素体相速率,低温变形相的晶粒尺寸,铁素体相的纳米硬度的平均值与低温变形相的平均值的比例和波动 在铁素体和低温转化相的复合结构钢中的低温变形相的硬度,得到材料质量波动小,成形性优异的高强度热浸镀锌钢板。

    ALUMINUM TYPE PLATED STEEL SHEET AND HEAT SHRINK BAND USING THE SAME
    4.
    发明申请
    ALUMINUM TYPE PLATED STEEL SHEET AND HEAT SHRINK BAND USING THE SAME 有权
    铝型钢板和使用它的热收缩带

    公开(公告)号:US20090011275A1

    公开(公告)日:2009-01-08

    申请号:US11815834

    申请日:2006-02-09

    IPC分类号: B32B15/01

    摘要: An exemplary embodiment of an aluminum type plated steel sheet which excels in discoloration resistance, and weldability, which does not decorate after re-heating and which can prevent increasing of strength, and a heat shrink band using the same are provided. For example, the heat shrink band can be made of an aluminum type plated steel sheet consisting of a steel sheet being composed of, e.g., not more than about 0.005 mass % of C; not more than about 0.005 mass % of N; not less than about 0.1 mass % and not more than about 0.5 mass % of Si; not more than about 0.1 mass % of P; not more than about 0.02 mass % of S; not less than about 1.05 mass % and not more than 2.0 mass % of Mn; not more than 1.0 mass % of sol Al; a residual amount of Fe and inevitable impurities, and an aluminum type plated layer mainly consisting of Al being deposited thereon. Such exemplary sheet can be prevented from a discoloration upon, e.g., being re-heated at a temperature of not less than about 500° C. to not more than about 700° C.

    摘要翻译: 提供了耐变色性优异的铝型电镀钢板的示例性实施例,以及再加热后不能装饰并且可以防止强度增加的可焊性,以及使用其的热收缩带。 例如,热收缩带可以由由例如不超过约0.005质量%的C构成的钢板构成的铝型电镀钢板制成, 不超过约0.005质量%的N; 不小于约0.1质量%且不大于约0.5质量%的Si; 不大于约0.1质量%的P; 不超过约0.02质量%的S; 不小于1.05质量%且不大于2.0质量%的Mn; 不大于1.0质量%的溶胶Al; 残余量的Fe和不可避免的杂质,以及主要由Al沉积的铝型镀层。 可以防止例如在不低于约500℃至不超过约700℃的温度下再加热时的变色。

    Aluminum type plated steel sheet and heat shrink band using the same
    6.
    发明授权
    Aluminum type plated steel sheet and heat shrink band using the same 有权
    铝型电镀钢板和使用其的热收缩带

    公开(公告)号:US07968210B2

    公开(公告)日:2011-06-28

    申请号:US11815834

    申请日:2006-02-09

    IPC分类号: B32B15/18 B32B15/20

    摘要: An exemplary embodiment of an aluminum type plated steel sheet which excels in discoloration resistance, and weldability, which does not decorate after re-heating and which can prevent increasing of strength, and a heat shrink band using the same are provided. For example, the heat shrink band can be made of an aluminum type plated steel sheet consisting of a steel sheet being composed of, e.g., not more than about 0.005 mass % of C; not more than about 0.005 mass % of N; not less than about 0.1 mass % and not more than about 0.5 mass % of Si; not more than about 0.1 mass % of P; not more than about 0.02 mass % of S; not less than about 1.05 mass % and not more than 2.0 mass % of Mn; not more than 1.0 mass % of sol Al; a residual amount of Fe and inevitable impurities, and an aluminum type plated layer mainly consisting of Al being deposited thereon. Such exemplary sheet can be prevented from a discoloration upon, e.g., being re-heated at a temperature of not less than about 500° C. to not more than about 700° C.

    摘要翻译: 提供了耐变色性优异的铝型电镀钢板的示例性实施例,以及再加热后不能装饰并且可以防止强度增加的可焊性,以及使用其的热收缩带。 例如,热收缩带可以由由例如不超过约0.005质量%的C构成的钢板构成的铝型电镀钢板制成, 不超过约0.005质量%的N; 不小于约0.1质量%且不大于约0.5质量%的Si; 不大于约0.1质量%的P; 不超过约0.02质量%的S; 不小于1.05质量%且不大于2.0质量%的Mn; 不大于1.0质量%的溶胶Al; 残余量的Fe和不可避免的杂质,以及主要由Al沉积的铝型镀层。 可以防止例如在不低于约500℃至不超过约700℃的温度下再加热时的变色。

    High-strength hot-dip galvanized steel sheet and method for producing the same
    7.
    发明授权
    High-strength hot-dip galvanized steel sheet and method for producing the same 有权
    高强度热浸镀锌钢板及其制造方法

    公开(公告)号:US07736449B2

    公开(公告)日:2010-06-15

    申请号:US11977537

    申请日:2007-10-24

    IPC分类号: C23C2/28

    摘要: The present invention stably provides a high-strength hot-dip galvanized steel sheet having a high tensile strength and no non-plated portions and being excellent in workability and surface properties even when the employed equipment has only a reduction annealing furnace and a steel sheet containing relatively large amounts of Si, Mn and Al that are regarded as likely to cause non-plated portions is used as the substrate. The present invention: secures good plating performance even when the steel sheet contains Si, Mn and Al by adding Ni to a steel sheet, thus forming oxides at some portions in the steel sheet surface layer, and resultantly suppressing the surface incrassation of Si, Mn and Al at the portions where oxides are not formed; enhances the effect of Ni and accelerates the formation of oxides by further adding Mo, Cu and Sn; and moreover, in the case of a TRIP steel sheet, secures austenite by determining the ranges of Si and Al strictly, avoiding the deterioration of plating performance caused by the addition of Ni, and further adding Mo in a balanced manner.In addition, the present invention, in a TRIP steel sheet, improves press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating.

    摘要翻译: 本发明稳定地提供了具有高拉伸强度和无镀层部分的高强度热浸镀锌钢板,并且即使所用设备仅具有还原退火炉和含有 被认为可能引起非电镀部分的相对大量的Si,Mn和Al被用作衬底。 本发明:即使在钢板中含有Si,Mn和Al的钢板中也添加了Ni,从而在钢板表面层的某些部分形成氧化物,也可以确保良好的镀层性,从而抑制Si,Mn 和Al在不形成氧化物的部分; 通过进一步添加Mo,Cu和Sn,增强Ni的作用并加速氧化物的形成; 此外,在TRIP钢板的情况下,通过严格地确定Si和Al的范围来确保奥氏体,避免由于添加Ni而引起的电镀性能的劣化,并且进一步以平衡的方式添加Mo。 此外,本发明在TRIP钢板中,通过调节残留奥氏体比例,通过调节镀层前退火时的氢浓度和露点来促进氧化物的形成,提高冲压成形性。

    High-strength hop-dip galvanized steel sheet and method for producing the same
    8.
    发明申请
    High-strength hop-dip galvanized steel sheet and method for producing the same 有权
    高强度浸镀锌钢板及其制造方法

    公开(公告)号:US20060124907A1

    公开(公告)日:2006-06-15

    申请号:US10542393

    申请日:2004-01-15

    IPC分类号: H01B1/12

    摘要: The present invention stably provides a high-strength hot-dip galvanized steel sheet having a high tensile strength and no non-plated portions and being excellent in workability and surface properties even when the employed equipment has only a reduction annealing furnace and a steel sheet containing relatively large amounts of Si, Mn and Al that are regarded as likely to cause non-plated portions is used as the substrate. The present invention: secures good plating performance even when the steel sheet contains Si, Mn and Al by adding Ni to a steel sheet, thus forming oxides at some portions in the steel sheet surface layer, and resultantly suppressing the surface incrassation of Si, Mn and Al at the portions where oxides are not formed; enhances the effect of Ni and accelerates the formation of oxides by further adding Mo, Cu and Sn; and moreover, in the case of a TRIP steel sheet, secures austenite by determining the ranges of Si and Al strictly, avoiding the deterioration of plating performance caused by the addition of Ni, and further adding Mo in a balanced manner. In addition, the present invention, in a TRIP steel sheet, improves press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating.

    摘要翻译: 本发明稳定地提供了具有高拉伸强度和无镀层部分的高强度热浸镀锌钢板,并且即使所用设备仅具有还原退火炉和含有 被认为可能引起非电镀部分的相对大量的Si,Mn和Al被用作衬底。 本发明:即使在钢板中含有Si,Mn和Al的钢板中也添加了Ni,从而在钢板表面层的某些部分形成氧化物,也可以确保良好的镀层性,从而抑制Si,Mn 和Al在不形成氧化物的部分; 通过进一步添加Mo,Cu和Sn,增强Ni的作用并加速氧化物的形成; 此外,在TRIP钢板的情况下,通过严格地确定Si和Al的范围来确保奥氏体,避免由于添加Ni而引起的电镀性能的劣化,并且进一步以平衡的方式添加Mo。 此外,本发明在TRIP钢板中,通过调节残留奥氏体比例,通过调节镀层前退火时的氢浓度和露点来促进氧化物的形成,提高冲压成形性。

    High-strength hop-dip galvanized steel sheet
    9.
    发明授权
    High-strength hop-dip galvanized steel sheet 有权
    高强度浸镀锌钢板

    公开(公告)号:US07294412B2

    公开(公告)日:2007-11-13

    申请号:US10542393

    申请日:2004-01-15

    IPC分类号: B32B15/01 B32B15/04 B32B15/18

    摘要: The present invention stably provides a high-strength hot-dip galvanized steel sheet having a high tensile strength and no non-plated portions and being excellent in workability and surface properties even when the employed equipment has only a reduction annealing furnace and a steel sheet containing relatively large amounts of Si, Mn and Al that are regarded as likely to cause non-plated portions is used as the substrate. The present invention: secures good plating performance even when the steel sheet contains Si, Mn and Al by adding Ni to a steel sheet, thus forming oxides at some portions in the steel sheet surface layer, and resultantly suppressing the surface incrassation of Si, Mn and Al at the portions where oxides are not formed; enhances the effect of Ni and accelerates the formation of oxides by further adding Mo, Cu and Sn; and moreover, in the case of a TRIP steel sheet, secures austenite by determining the ranges of Si and Al strictly, avoiding the deterioration of plating performance caused by the addition of Ni, and further adding Mo in a balanced manner.In addition, the present invention, in a TRIP steel sheet, improves press formability by regulating a retained austenite ratio and accelerates the formation of oxides by regulating a hydrogen concentration and a dew point in annealing before plating.

    摘要翻译: 本发明稳定地提供了具有高拉伸强度和无镀层部分的高强度热浸镀锌钢板,并且即使所用设备仅具有还原退火炉和含有 被认为可能引起非电镀部分的相对大量的Si,Mn和Al被用作衬底。 本发明:即使在钢板中含有Si,Mn和Al的钢板中也添加了Ni,从而在钢板表面层的某些部分形成氧化物,也可以确保良好的镀层性,从而抑制Si,Mn 和Al在不形成氧化物的部分; 通过进一步添加Mo,Cu和Sn,增强Ni的作用并加速氧化物的形成; 此外,在TRIP钢板的情况下,通过严格地确定Si和Al的范围来确保奥氏体,避免由于添加Ni而引起的电镀性能的劣化,并且进一步以平衡的方式添加Mo。 此外,本发明在TRIP钢板中,通过调节残留奥氏体比例,通过调节镀层前退火时的氢浓度和露点来促进氧化物的形成,提高冲压成形性。