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17 条记录 (耗时 0.015 秒)

    Stainless steel tube for automobile structure
    1.
    发明授权
    Stainless steel tube for automobile structure 失效
    汽车结构用不锈钢管

    公开(公告)号：US06755919B2

    公开(公告)日：2004-06-29

    申请号：US10089035

    申请日：2002-03-26

    申请人： Takaaki Toyooka ,  Akira Yorifuji ,  Makoto Kitazawa ,  Yoshikazu Kawabata ,  Motoaki Itadani ,  Masatoshi Aratani ,  Takatoshi Okabe

    发明人： Takaaki Toyooka ,  Akira Yorifuji ,  Makoto Kitazawa ,  Yoshikazu Kawabata ,  Motoaki Itadani ,  Masatoshi Aratani ,  Takatoshi Okabe

    IPC分类号： C22C3818

    CPC分类号： C21D8/10 ,  C21D8/105 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18

    摘要： A stainless steel tube having excellent formability for secondary operation comprises: a chemical composition including not more than 0.20 mass % of C; not more than 1.5 mass % of Si; not more than 2.0 mass % of Mn; 10-18 mass % of Cr; not more than 0.03 mass % of N; or further at least one type of element selected from the group of: not more than 0.6 mass % of Cu; not more than 0.6 mass % of Ni; not more than 2.5 mass % of Mo; not more than 1.0 mass % of Nb; not more than 1.0 mass % of Ti; and not more than 1.0 mass % of V; Fe as the remainder and the inevitable impurities; and a structure constituted of ferrite or ferrite and martensite, wherein the TE value defined by the following formula exceeds 25,000 Mpa·%, TE=TS×(El+21.9) TS represents the tensile strength in the tube axial direction, and El represents the elongation in such direction.

    摘要翻译： 对于二次操作具有优异成形性的不锈钢管包括：不超过0.20质量％的C的化学组成; 不超过1.5质量％的Si; 不大于2.0质量％的Mn; 10-18质量％Cr; 不大于0.03质量％的N; 或另外至少一种选自以下的元素中的至少一种：不大于0.6质量％的Cu; 不大于0.6质量％的Ni; 不大于2.5质量％的Mo; 不大于1.0质量％的Nb; 不大于1.0质量％的Ti; 不大于1.0质量％的V; Fe作为剩余部分和不可避免的杂质; 以及由铁素体或铁素体和马氏体组成的结构，其中由下式定义的TE值超过25,000Mpa％，TE = TSx（E1 + 21.9）TS表示管轴向的拉伸强度，E1表示伸长率 在这个方向。

    Impeder for manufacturing welded pipe
    4.
    发明授权
    Impeder for manufacturing welded pipe 失效
    用于制造焊管的阻焊器

    公开(公告)号：US06949728B2

    公开(公告)日：2005-09-27

    申请号：US10476800

    申请日：2001-08-02

    申请人： Takaaki Toyooka ,  Takatoshi Okabe ,  Motoaki Itadani ,  Masatoshi Aratani ,  Osamu Kondo

    发明人： Takaaki Toyooka ,  Takatoshi Okabe ,  Motoaki Itadani ,  Masatoshi Aratani ,  Osamu Kondo

    IPC分类号： B23K13/08 ,  B23K13/02 ,  B23K31/02 ,  H05B6/10 ,  B23K13/01 ,  B21D39/00

    CPC分类号： B23K13/025 ,  B23K31/02 ,  B23K2101/06

    摘要： An impeder, for manufacturing a welded pipe, including an insulating case 4 containing laminations 10 having coated steel sheets 8 formed by providing an insulating coating on untreated steel sheets having a thickness of 0.3 mm or less and an insulating case 8 containing the laminations, wherein the steel sheets contain 1.5-20% of Cr, 2.5-10% of Si, and 100 ppm or less of C and N in total, or further contain one or more of Al, Mn, and P, where the content of Al is 5% or less and the content of each of Mn and P is 1% or less, the remainder being Fe and unavoidable impurities; and preferably have a resistivity of 60 μΩ·cm or more.

    摘要翻译： 一种用于制造焊接管的阻碍物，包括：绝缘壳体4，其包含通过在厚度为0.3mm以下的未处理钢板上提供绝缘涂层而形成的具有镀覆钢板8的叠片10和包含所述叠片的绝缘壳体8， 钢板含有1.5-20％的Cr，2.5-10％的Si和100ppm或更少的C和N，或者还包含Al，Mn和P中的一种或多种，​​Al的含量为 5％以下，Mn和P的含量为1％以下，余量为Fe和不可避免的杂质; 并且优选具有60μΩa.cm以上的电阻率。

    Welded steel pipe having excellent hydroformability and method for making the same
    6.
    发明授权
    Welded steel pipe having excellent hydroformability and method for making the same 失效
    具有优异的液压成形性的焊接钢管及其制造方法

    公开(公告)号：US06682829B2

    公开(公告)日：2004-01-27

    申请号：US10160820

    申请日：2002-05-31

    申请人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

    发明人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

    IPC分类号： B32B1518

    CPC分类号： C22C38/02 ,  C21D8/10 ,  C22C38/06 ,  C22C38/28 ,  C22C38/38 ,  Y10T428/12965

    摘要： A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition comprising, on the basis of mass percent: about 0.05% to about 0.3% C; about 2.0% or less of Si; more than about 1.5% to about 5.0% Mn; about 0.1% or less of P; about 0.01% or less of S; about 0.1% or less of Cr; about 0.1% or less of Al; about 0.1% or less of Nb; about 0.3% or less of Ti; and about 0.01% or less of N; and by diameter-reduction-rolling the treated steel pipe at a accumulated diameter reduction rate of at least about 35% and a finish rolling temperature of about 500° C. to about 900° C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of about 780 MPa or more and a n×r product of at least about 0.15. The treated steel pipe is preferably diameter-reduction-rolled at a accumulated diameter reduction rate of at least about 20% below the Ar3 transformation point.

    摘要翻译： 焊接钢管是通过加热或浸渍具有钢质组成的未经处理的焊接钢管形成的，所述焊接钢管基于质量百分比：约0.05％至约0.3％C; 约2.0％以下的Si; 大于约1.5％至约5.0％的Mn; 约0.1％以下的P; 约0.01％以下的S; 约0.1％以下的Cr; 约0.1％以下的Al; 约0.1％以下的Nb; 约0.3％以下的Ti; 和约0.01％以下的N; 并且以约至少约35％的累积直径减小率和约500℃至约900℃的精轧温度对经处理的钢管进行直径缩小轧制。焊接钢管显示出优异的加氢性能， 具有约780MPa或更高的拉伸强度和至少约0.15的nxr产品。 经处理的钢管优选以低于Ar 3相变点至少约20％的累积直径减小率进行直径减小轧制。

    Welded steel pipe having excellent hydroformability and method for making the same
    7.
    发明授权
    Welded steel pipe having excellent hydroformability and method for making the same 失效
    具有优异的液压成形性的焊接钢管及其制造方法

    公开(公告)号：US06749954B2

    公开(公告)日：2004-06-15

    申请号：US10161407

    申请日：2002-05-31

    申请人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

    发明人： Takaaki Toyooka ,  Masatoshi Aratani ,  Yoshikazu Kawabata ,  Yuji Hashimoto ,  Akira Yorifuji ,  Takatoshi Okabe ,  Takuya Nagahama ,  Mitsuo Kimura

    IPC分类号： B32B1518

    CPC分类号： B21D26/047 ,  B21B3/02 ,  B21B17/14 ,  B21B45/004 ,  B21C37/06 ,  B21D26/039 ,  B21D26/043 ,  C21D8/10 ,  Y10T428/12965

    摘要： A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.03% to about 0.2% C, about 2.0% or less of Si, not less than about 1.0% to about 1.5% Mn, about 0.1% or less of P, about 0.01% or less of S, about 1.0% or less of Cr, about 0.1% or less of Al, about 0.1% or less of Nb, about 0.1% or less of Ti, about 0.1% or less of V, and about 0.01% or less of N; and by reduction-rolling the treated steel pipe at a cumulative reduction rate of at least about 35% and a final rolling temperature of about 500° C. to about 900° C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of at least about 590 MPa and an n×r product of at least about 0.22. The treated steel pipe is preferably reduction-rolled at a cumulative reduction rate of at least about 20% below the Ar3 transformation point.

    摘要翻译： 焊接钢管是通过加热或浸渍具有钢质组成的未经处理的焊接钢管形成的，所述钢组合物基于质量百分比：约0.03％至约0.2％C，约2.0％或更少的Si，不小于约1.0 至约1.5％的Mn，约0.1％或更少的P，约0.01％或更少的S，约1.0％或更少的Cr，约0.1％或更少的Al，约0.1％或更少的Nb，约0.1％ 或更少的Ti，约0.1％或更少的V和约0.01％或更少的N; 并且通过将处理后的钢管以至少约35％的累积压下率和约500℃至约900℃的最终轧制温度进行还原轧制。焊接钢管表现出优异的加氢成形性，即具有拉伸强度 至少约590MPa的强度和至少约0.22的nxr产物。 经处理的钢管优选以低于Ar 3相变点至少约20％的累积压缩率进行还原轧制。

    Steel sheet for can and manufacturing method thereof
    8.
    发明授权
    Steel sheet for can and manufacturing method thereof 有权
    罐用钢板及其制造方法

    公开(公告)号：US06221180B1

    公开(公告)日：2001-04-24

    申请号：US09445404

    申请日：1999-12-07

    申请人： Akio Tosaka ,  Masatoshi Aratani ,  Osamu Furukimi ,  Hideo Kuguminato ,  Makoto Aratani ,  Yuji Miki

    发明人： Akio Tosaka ,  Masatoshi Aratani ,  Osamu Furukimi ,  Hideo Kuguminato ,  Makoto Aratani ,  Yuji Miki

    IPC分类号： C21D800

    CPC分类号： C22C38/06 ,  C21D8/0273 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/002 ,  C22C38/04 ,  C22C38/14

    摘要： The invention provides a can steel sheet having satisfactory surface appearance and having workability, appearance property after working and high yield that can meet demands on complicated can forming, and a manufacturing process thereof. To be more specific, according to the invention, a slab having a composition containing, in weight %, C: more than 0.005% and equal to or less than 0.1%, Mn: 0.05-1.0% is subjected to hot-rolling at a finishing temperature of 800 to 1000° C., to coiling at 500 to 750° C., to cold-rolling, followed by continuous annealing at a recrystallization temperature or higher and 800° C. or lower, and then to box annealing at a temperature higher than 500° C. and equal to or lower than 600° C. for 1 hr or longer. The steel sheet has preferably a structure containing ferrite as a principle phase and having a mean grain diameter of 10 &mgr;m or less and further containing 0.1-1% by weight of pearlite grains each having a grain diameter of 0.5-3 &mgr;m. To obtain satisfactory surface appearance, it is preferable that the steel contains: Ti: 0.015-0.10%, Al: 0.001-0.01%, and a total of 0.0005-0.01% of one or two members of Ca, REM, and S−5×((32/40)Ca+(32/140)REM) of 0.0014% or less.

    摘要翻译： 本发明提供一种具有令人满意的表面外观和可加工性，加工后的外观性能和能够满足复杂罐形成的要求的高产率的罐钢板及其制造方法。 更具体地说，根据本发明，将具有以重量％计含有C：大于0.005％并且等于或小于0.1％的Mn：0.05-1.0％的组成的板坯在 精加工温度为800〜1000℃，在500〜750℃下卷取，进行冷轧，然后在再结晶温度以上且800℃以下进行连续退火，然后在 温度高于500℃，等于或低于600℃，持续1小时或更长时间。 钢板优选具有铁素体作为主相，平均粒径为10μm以下的结构，并且还含有0.1-1重量％的粒径为0.5-3μm的珠光体组织。 为了获得令人满意的表面外观，优选钢包含：Ti：0.015-0.10％，Al：0.001-0.01％，以及Ca，REM和S-5x中的一种或两种成分的总计0.0005-0.01％ （（32/40）Ca +（32/140）REM）为0.0014％以下。