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1. 发明授权

US6042952A Extremely-thin steel sheets and method of producing the same 失效
标题翻译：极薄钢板及其制造方法
公开(公告)号：US6042952A
公开(公告)日：2000-03-28
申请号：US952013
申请日：1997-11-12
申请人： Makoto Aratani , Naotoshi Ryu , Hideo Kuguminato , Akio Tosaka , Kaneharu Okuda , Masatoshi Aratani , Susumu Okada
发明人： Makoto Aratani , Naotoshi Ryu , Hideo Kuguminato , Akio Tosaka , Kaneharu Okuda , Masatoshi Aratani , Susumu Okada
IPC分类号： B21B1/22 , B21B1/24 , B21B1/26 , B21B1/28 , B21B1/38 , B21B1/40 , B21B3/00 , B21B13/02 , B21B15/00 , B21B45/00 , C21D8/02 , C21D9/46 , C21D9/48 , C22C38/00 , C22C38/06 , C22C38/54 , C25D5/26
CPC分类号： B21B1/24 , C21D8/0226 , B21B1/26 , B21B1/28 , B21B1/40 , B21B13/023 , B21B15/0085 , B21B2001/228 , B21B2001/383 , B21B45/004 , C21D8/0278 , Y10T428/12722 , Y10T428/12854 , Y10T428/12972
摘要： A steel slab is rough-rolled into a sheet bar and butt-joined onto a preceding sheet bar and a widthwise end portion of the sheet bar is heated by means of an edge heater and then subjected to a continuous finish rolling through pair-cross rolls rolling on at least 3 stands to provide a hot rolled steel strip having a width of not less than 950 mm, a thickness of 0.5-2 mm and a crown within .+-.40 .mu.m, and the hot rolled steel strip is subjected to cold rolling, continuous annealing, temper rolling and, if necessary, plating treatment on the surface of the cold rolled steel strip, whereby there is obtained a steel sheet having an average thickness of not more than 0.20 mm and a width of not less than 950 mm, a thickness variation quantity in a widthwise direction is within .+-.4% of the average thickness in a region corresponding to not less than 95% of the width of the steel sheet as cold rolled and a hardness (HR30T) variation in the widthwise direction is within .+-.3 of an average hardness.
摘要翻译： PCT No.PCT / JP97 / 00826 Sec。 371日期1997年11月12日 102（e）日期1997年11月12日PCT 1997年3月14日PCT公布。公开号WO97 / 33706 日期1997年9月18日将钢坯粗轧成板坯，并对接在前面的板坯上，并且通过边缘加热器加热板坯的宽度方向端部，然后进行连续精轧通过在至少3个立场上滚轧的双向辊，提供宽度不小于950mm，厚度为0.5-2mm，表冠在+/-40μm内的热轧钢带，热轧对钢带进行冷轧，连续退火，回火轧制，如果需要，在冷轧钢带的表面进行电镀处理，得到平均厚度不大于0.20mm的钢板，宽度不小于950mm的宽度方向上的厚度变化量在对应于不低于冷轧钢板的宽度的95％的区域中的平均厚度的+/- 4％内，硬度（ HR30T）宽度方向的变化在+/- 3的平均硬度。

2. 发明授权

US06171416B2 Method of producing can steel strip 有权
标题翻译：钢带生产方法
公开(公告)号：US06171416B2
公开(公告)日：2001-01-09
申请号：US09426886
申请日：1999-10-26
申请人： Makoto Aratani , Yukio Kobata , Hideo Kuguminato , Akio Tosaka , Masatoshi Aratani , Susumu Okada
发明人： Makoto Aratani , Yukio Kobata , Hideo Kuguminato , Akio Tosaka , Masatoshi Aratani , Susumu Okada
IPC分类号： C21D802
CPC分类号： C21D8/0426 , C21D2221/01 , C22C38/12
摘要： At least both ends of a sheet bar in the length direction, which is obtained by roughly rolling a steel slab including 0.1 wt % or less of C, 0.5 wt % or less of Si, 1.0 wt % or less of Mn, 0.1 wt % or less of P, 0.05 wt % or less of S, 0.20 wt % or less of Al, and 0.015 wt % or less of N, are heated so that the temperature at both ends of the sheet bar in the length direction is 15° C. or more higher than the temperature of the remainder of the sheet bar. The rolling finish temperature is Ar3+20° C. to Ar3+100° C. in both end portions of the sheet bar in the length direction, and Ar3+10° C. to Ar3+60° C. in the remainder, and the rolling finish temperature in the both end portions in the length direction is 10° C. or more higher than that of the remainder, so that a steel strip after cold rolling and annealing has r values within ±0.3 of the average r value, and &Dgr;r within ±0.2 of the average &Dgr;r in the region of 95% or more of each of the total length and total width of the steel strip.
摘要翻译：至少在长度方向的两端，通过大致轧制含有0.1重量％以下的C，0.5重量％以下的Si，1.0重量％以下的Mn，0.1重量％以下的钢板，或更少的P，0.05重量％以下的S，0.20重量％以下的Al和0.015重量％以下的N，被加热使得片材杆的长度方向的两端的温度为15度或更高于片材条的其余部分的温度。在板材的长度方向的两端部的轧制终轧温度为Ar3 + 20℃〜Ar3 + 100℃，其余为Ar3 + 10℃〜Ar3 + 60℃，长度方向两端部的轧制精加工温度比剩余部分的轧制温度高10℃以上，冷轧退火后的钢带的r值在平均r值的±0.3以内， DELTAr在平均DELTAr的±0.2内，在钢带的总长度和总宽度的95％或更多的区域中。

3. 发明授权

US06221180B1 Steel sheet for can and manufacturing method thereof 有权
标题翻译：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。

4. 发明授权

US6110299A Steel sheet for double wound pipe and method of producing the pipe 失效
标题翻译：双卷管钢板及其生产方法
公开(公告)号：US6110299A
公开(公告)日：2000-08-29
申请号：US91745
申请日：1998-06-24
申请人： Akio Tosaka , Kaneharu Okuda , Masatoshi Aratani
发明人： Akio Tosaka , Kaneharu Okuda , Masatoshi Aratani
IPC分类号： C21D8/02 , C22C38/12 , C22C38/14
CPC分类号： C22C38/12 , C21D8/0236 , C22C38/14 , C21D8/0226 , C21D8/0268
摘要： A steel sheet for double-rolled tubes has excellent formability, and excellent strength and toughness after forming and heat treatment of a tube because of suppressed coarsening of the ferrite grain size and a method for making the same comprises: hot finish-rolling of a steel material containing C: 0.0005-0.020 wt %, and one or two of Nb: 0.003-0.040 wt %, and Ti: 0.005-0.060 wt % at a final temperature of 1,000-850.degree. C., coiling at 750.degree. C. or less, cold rolling, continuous annealing at 650.degree. C.-850.degree. C. for 20 seconds or less, and second cold-rolling at a rolling reduction rate of 20% or less, so that at least one of Nb and Ti is present in a solid solution state in an amount of 0.005 wt % or more, and the crystal grain size in the ferrite structure is in the range of 5 to 10 .mu.m.
摘要翻译： PCT No.PCT / JP97 / 04289 371日期：1998年6月24日 102（e）1998年6月24日PCT 1997年11月25日PCT PCT。公开号WO98 / 24942 日期1998年6月11日由于铁素体晶粒尺寸的抑制粗大化及其制造方法，双辊轧制钢板具有优异的成形性，而且管形成和热处理后的优异的强度和韧性包括：热处理在1000-850℃的最终温度下，将含有C：0.0005-0.020重量％，Nb：0.003-0.040重量％和Ti：0.005-0.060重量％中的一种或两种的钢材卷取在 750℃以下，冷轧，在650℃〜850℃下连续退火20秒以下，以20％以下的压下率进行第二次冷轧，使得至少一个 Nb和Ti以0.005重量％以上的量存在于固溶态中，铁素体结构中的结晶粒径在5〜10μm的范围内。

5. 发明授权

US06755919B2 Stainless steel tube for automobile structure 失效
标题翻译：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。

6. 发明授权

US06749954B2 Welded steel pipe having excellent hydroformability and method for making the same 失效
标题翻译：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。

7. 发明申请

US20090277544A1 HIGH-TENSILE STRENGTH WELDED STEEL TUBE FOR STRUCTURAL PARTS OF AUTOMOBILES AND METHOD OF PRODUCING THE SAME 有权
标题翻译：用于汽车结构部件的高强度焊接钢管及其制造方法
公开(公告)号：US20090277544A1
公开(公告)日：2009-11-12
申请号：US12307439
申请日：2007-06-19
申请人： Shunsuke Toyoda , Masatoshi Aratani , Yoshikazu Kawabata , Yuji Hashimoto , Koji Suzuki , Kei Sakata , Makio Gunji , Akio Sato , Tetsuro Sawaki
发明人： Shunsuke Toyoda , Masatoshi Aratani , Yoshikazu Kawabata , Yuji Hashimoto , Koji Suzuki , Kei Sakata , Makio Gunji , Akio Sato , Tetsuro Sawaki
IPC分类号： C21D9/08 , C22C38/02 , C22C38/26
CPC分类号： B21C37/08 , C21D1/26 , C21D8/02 , C21D8/0226 , C21D8/0263 , C21D9/08 , C21D2211/005 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A high-tensile strength welded steel tube has excellent formability and torsional fatigue endurance after being formed into cross-sectional shape and then stress-relief annealed. A steel material used has a composition which contains C, Si, Al, 1.01% to 1.99% Mn, 0.041% to 0.150% Ti, 0.017% to 0.150% Nb, P, S, N, and O such that the sum of the content of Ti and that of Nb is 0.08% or more, the content of each of C, Si, and Al being within an appropriate range, the content of each of P, S, N, and O being adjusted to a predetermined value or less.
摘要翻译：高强度焊接钢管在成形为截面形状后进行抗应力退火退火，具有优异的成型性和抗扭疲劳耐久性。使用的钢材具有含有C，Si，Al，1.01〜1.99％的Mn，0.041〜0.150％的Ti，0.017〜0.150％的Nb，P，S，N，和O的组成， Ti和Nb的含量为0.08％以上，C，Si和Al中的每一种的含量在适当范围内，P，S，N和O中的每一个的含量被调节至预定值，或减。

8. 发明授权

US06949728B2 Impeder for manufacturing welded pipe 失效
标题翻译：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。

9. 发明授权

US06736910B2 High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same 失效
标题翻译：冷成型性优异，高频淬透性优良的高碳钢管及其制造方法
公开(公告)号：US06736910B2
公开(公告)日：2004-05-18
申请号：US10048322
申请日：2002-01-29
申请人： Takaaki Toyooka , Yoshikazu Kawabata , Akira Yorifuji , Masanori Nishimori , Motoaki Itadani , Takatoshi Okabe , Masatoshi Aratani , Yasue Koyama
发明人： Takaaki Toyooka , Yoshikazu Kawabata , Akira Yorifuji , Masanori Nishimori , Motoaki Itadani , Takatoshi Okabe , Masatoshi Aratani , Yasue Koyama
IPC分类号： C22C3802
CPC分类号： B21C37/30 , B21B17/14 , B21C37/06 , B21C37/08 , B21C37/16 , C21D8/10 , C22C38/002 , C22C38/02 , C22C38/04 , Y10S148/909
摘要： The invention provides a high-carbon steel pipe having superior cold workability and induction hardenability, and a method of producing the steel pipe. The method comprises the steps of heating or soaking a base steel pipe having a composition containing C: 0.3 to 0.8%, Si: not more than 2%, and Mn: not more than 3%, and then carrying out reducing rolling on the base steel pipe at least in the temperature range of (Ac1, transformation point −50° C.) to Ac1, transformation point with an accumulated reduction in diameter of not less than 30%. A structure in which the grain size of cementite is not greater than 1.0 &mgr;m is obtained, thus resulting in improved cold workability and induction hardenability.
摘要翻译：本发明提供一种具有优异的冷加工性和感应淬透性的高碳钢管，以及钢管的制造方法。该方法包括以下步骤：加热或浸泡含有C：0.3〜0.8％，Si：2％以下，Mn：3％以下的组成的基础钢管，然后在基材上进行还原轧制钢管至少在（Ac1，相变点-50℃）至Ac1的温度范围内，相变点的直径累积减小不小于30％。获得了渗碳体的粒径不大于1.0μm的结构，从而提高了冷加工性和感应淬透性。

10. 发明授权

US06682829B2 Welded steel pipe having excellent hydroformability and method for making the same 失效
标题翻译：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。

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