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1. 发明专利

JP2010202927A Annealing method enabling to prevent tempering color 有权
标题翻译：使用防止温度变色的退火方法
公开(公告)号：JP2010202927A
公开(公告)日：2010-09-16
申请号：JP2009049195
申请日：2009-03-03
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide an annealing method enabling to prevent a tempering color with which a tempering degree for BAF (Box Annealing Furnace) annealed steel sheet can be secured while effectively preventing the generation of the tempering color. SOLUTION: When a tight-coiled steel sheet is recrystallization-annealed with BAF, the method for preventing the tempering color on the BAF annealed steel sheet is performed as the followings that a mixed atmospheric gas having the composition of 90-97 vol.% nitrogen gas concentration and 3-10 vol.% hydrogen gas concentration is supplied and moisture generated from the tight-coiled steel sheet during temperature-raising process is exhausted while vaporizing the moisture, and the tight-coiled steel sheet is held under reducing atmosphere, in which a dew-point at the reaching time to 580-630°C soaking sheet temperature is made to be ≤-40°C. Thereby, the tempering color generated on the BAF annealed steel sheet can effectively be prevented. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以有效地防止产生回火色的同时可以确保能够确保BAF（盒式退火炉）退火钢板的回火度的回火颜色的退火方法。解决方案：当用BAF对紧卷钢板进行再结晶退火时，对BAF退火钢板进行回火颜色的防止方法进行如下，即组合物为90-97体积的混合气氛气体提供％的氮气浓度和3-10体积％的氢气浓度，并且在升温过程中由紧卷盘钢板产生的水分在水分蒸发的同时被耗尽，并且紧卷钢板保持在还原气氛中，将达到580-630℃的露点温度达到-40℃。由此，可以有效地防止在BAF退火钢板上产生的回火色。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2005350737A Thin steel sheet for can provided with strong can body strength and press workability and its production method 有权
标题翻译：具有强大的身体强度和压力可靠性及其生产方法的薄钢板
公开(公告)号：JP2005350737A
公开(公告)日：2005-12-22
申请号：JP2004173624
申请日：2004-06-11
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/06 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a truly versatile thin steel sheet in which, even after coating and baking, soft characteristics can be recovered after working, and remarkable increase in strength can be obtained by reheating after the working.
SOLUTION: The thin steel sheet for a can provided with strong can body strength and satisfactory press workability is composed of a surface layer having deformed zones in a thickness direction from the surface to a depth of 26 μm by skinpass rolling, and also having a high solid solution N ratio satisfying the precipitated N ratio (NasAlN×100/total N) of
摘要翻译：要解决的问题：为了提供一种真正通用的薄钢板，其中即使在涂布和烘烤之后，加工后可以恢复软特性，并且通过加工后的再加热可以获得显着的强度增加。解决方案：具有强大的罐体强度和令人满意的压制加工性能的罐用薄钢板由表面层由具有从表面至26μm的厚度方向的变形区域进行皮带轧制，并且还具有满足析出N比（NasAlN×100 /总N）<20％的高固溶N比，以及变形层极其减少的表层以外的内层。在表面层中，80〜200℃加热后的微维氏硬度为空气冷却≥140，在除表面层以外的内层，微维氏硬度<140。生产方法使用相同。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2009132984A Steel sheet having high strength and superior expansion formability for three-piece can, and manufacturing method therefor 有权
标题翻译：具有高强度和高级膨胀性能的三层钢的钢板及其制造方法
公开(公告)号：JP2009132984A
公开(公告)日：2009-06-18
申请号：JP2007311847
申请日：2007-12-03
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： AITO TAKAHIRO , TANAKA SEIICHI , YAMAMOTO SHUJI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet which shows more excellent expansion formability than a conventional one, by drawing the best formability therefrom even though the steel sheet has lowered its elongation due to thinning and strengthening, and to provide a manufacturing method therefor.
SOLUTION: This steel sheet includes, by mass, 0.018 to 0.030% C, 0.02% or less Si, 0.15 to 0.25% Mn, 0.010% or less P, 0.010% or less S, 0.070 to 0.100% Al, 0.004% or less N, while satisfying Sol. Al/(N-0.0005) ≥20, and the balance Fe with unavoidable impurities, and has a Rockwell hardness (HR30T) of 52 to 70. When a direction parallel to a rolling direction on the steel sheet surface is defined as an L direction and a direction perpendicular to the L direction is defined as a C direction, r-values either in the L direction or the C direction, or in both directions are 1.0 or more respectively, and the steel sheet causes no cracking and shows superior expansion formability when expansion-formed by setting the direction having the r-value of 1.0 or more as a can-expanding direction.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种比常规的更优异的膨胀成型性的钢板，即使钢板由于变薄和强化而使其伸长率降低，因此通过拉伸最佳成型性，并提供制造方法。解决方案：该钢板以质量计含有0.018〜0.030％的C，0.02％以下的Si，0.15〜0.25％的Mn，0.010％以下的P，0.010％以下的S，0.070〜0.100％的Al，0.004 ％以下N，同时满足Sol。 Al /（N-0.0005）≥20，余量为不可避免杂质的Fe，洛氏硬度（HR30T）为52〜70。将钢板表面的轧制方向平行的方向定义为L方向并且与L方向垂直的方向被定义为C方向，在L方向或C方向上或两个方向上的r值分别为1.0以上，钢板不产生开裂，显示出优异的膨胀成形性当通过将r值为1.0以上的方向设定为扩展方向而进行膨胀时。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2010007138A Steel sheet forming less ear to be deep-drawn, and method of manufacturing therefor 审中-公开
标题翻译：钢板形成较深的钢板及其制造方法
公开(公告)号：JP2010007138A
公开(公告)日：2010-01-14
申请号：JP2008168628
申请日：2008-06-27
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI
IPC分类号： C22C38/00 , B21B1/22 , B21B3/00 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To impart a high tensile strength to a steel sheet while decreasing the Δh at the same time.
SOLUTION: This DR steel forming less ears includes, by mass%, 0.015 to 0.07% C, 0.020% or less Si, 0.30 to 0.6% Mn, 0.02% or less P, 0.009% or less S, 0.01 to 0.05% Al, 0.006 to 0.01% N, and the balance Fe with unavoidable impurities, while satisfying a condition that a ratio Mn/S is 33 or more and the amount of dissolved N is 0.0060% or more; has a tensile strength of 500 MPa to 600 MPa; and makes the difference Δh between the maximum height and the minimum height in the circumferential direction of a deep-drawn can which has been drawn with a drawing ratio of 1.73 or less to be 0.9 mm or less.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在同时降低Δh的同时赋予钢板高的拉伸强度。解决方案：形成较少耳朵的该DR钢包括质量％为0.015至0.07％C，0.020％或更少的Si，0.30至0.6％的Mn，0.02％或更少的P，0.009％或更少的S，0.01至0.05 ％Al，0.006〜0.01％N，余量Fe为不可避免的杂质，同时满足Mn / S比为33以上，溶解N量为0.0060％以上的条件; 具有500MPa至600MPa的拉伸强度; 并且使拉伸比为1.73以下的深拉伸罐的圆周方向的最大高度与最小高度之差Δh为0.9mm以下。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2007284763A Method for producing soft, delayed-aging surface-treated steel sheet or thin steel sheet for vessel, and surface-treated steel sheet for vessel 有权
标题翻译：用于生产用于船舶的软的，延迟表面处理的钢板或薄钢板的方法和用于船舶的表面处理钢板
公开(公告)号：JP2007284763A
公开(公告)日：2007-11-01
申请号：JP2006115285
申请日：2006-04-19
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI
IPC分类号： C21D9/46 , C22C38/00 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a production technique where, in continuous annealing for a thin, wide, soft, and delayed-aging surface-treated steel sheet for a vessel, stable annealing is made possible without causing a buckle in a furnace, and to provide a surface-treated steel sheet for a vessel.
SOLUTION: A steel slab having a composition comprising, by mass, 0.015 to 0.08% C, ≤0.05% Si, 0.05 to 0.6% Mn, ≤0.04% P, ≤0.02% S, ≤0.04% sol.Al, ≤0.006% N and 0.003 to 0.008% B, and the balance Fe with inevitable impurities is subjected to hot rolling, pickling and cold rolling, so as to be a cold rolled steel sheet. The cold rolled steel sheet is subjected to continuous annealing in such a manner that the sheet temperature is controlled to the range of from a recrystallization temperature to 660°C, also, the time to the start of primary cooling is controlled to ≤0.9 s, also, the sheet temperature upon the start of the cooling is controlled to the range of a recrystallization temperature to 660°C, also, the primary cooling velocity is controlled to ≥100°C/s, and, next, overaging treatment at 300 to 450°C for ≥30 s and secondary cooling are performed in an overaging treatment furnace, and is subjected to skin pass rolling at a draft of 0.5 to 3%.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种生产技术，其中在用于容器的薄的，宽的，宽的，软的和延迟时效的表面处理钢板的连续退火中，可以进行稳定的退火而不会在炉，并提供用于容器的表面处理钢板。解决方案：具有以质量计含有0.015〜0.08％C，≤0.05％Si，0.05〜0.6％Mn，≤0.04％P，≤0.02％S，≤0.04％sol.Al， ≤0.006％N，0.003〜0.008％B，余量为Fe的不可避免的杂质进行热轧，酸洗，冷轧，成为冷轧钢板。对冷轧钢板进行连续退火，使得板温度控制在从再结晶温度至660℃的范围内，一次冷却开始的时间控制在≤0.9秒，此外，将冷却开始时的片材温度控制在再结晶温度至660℃的范围内，一次冷却速度也控制在≥100℃/ s以下，接着在300〜 450℃≥30秒，二次冷却在过时效处理炉中进行，并以0.5〜3％的通气速度进行表皮轧制。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007177315A Continuously annealed dr steel sheet for welded can having excellent flange formability and production method 有权
标题翻译：用于具有优良法兰可伸缩性和生产方法的焊接的连续退火钢板
公开(公告)号：JP2007177315A
公开(公告)日：2007-07-12
申请号：JP2005380104
申请日：2005-12-28
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI
IPC分类号： C22C38/00 , B21B1/22 , B21B1/26 , B21B3/00 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a continuously annealed DR steel sheet having necking resistance and flange crack resistance equal to those of a batch-annealed DR steel sheet, and to provide a production method therefor. SOLUTION: The steel sheet comprises, as steel components, by mass, C, Si, Mn, P, S, Al and N in prescribed ranges, and the balance iron with inevitable impurities. The steel sheet is characterized in that the content of (N total-N as AlN) is ≥0.007%, and in that when the total elongation value in the rolling direction is defined as X, and the average value is defined as Y, when X≥10% and also Y≥0.9, or, X COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有与间歇退火的DR钢板相同的颈缩阻力和凸缘抗裂性的连续退火的DR钢板，并提供其制造方法。解决方案：钢板以质量计包含C，Si，Mn，P，S，Al和N在规定范围内，其余铁与不可避免的杂质组成。钢板的特征在于，（N总N为AlN）的含量为≥0.007％，并且当将轧制方向的总伸长率定义为X时，将平均值定义为Y，当 X≥10％，Y≥0.9，或X <10％，Y≥0.05X+ 1.4满足要求，该钢板具有与间歇退火的DR钢板相同或更高的法兰成形性。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2009097045A High-strength steel sheet for 3-pieces can excellent in expansion moldability and its production method 有权
标题翻译： 3层高强度钢板可扩展成型可靠性及其生产方法
公开(公告)号：JP2009097045A
公开(公告)日：2009-05-07
申请号：JP2007270947
申请日：2007-10-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： AITO TAKAHIRO , TANAKA SEIICHI , YAMAMOTO SHUJI , MIYAMAE OSAMU
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet for a 3-pieces can, which exerts a higher expansion moldability compared to that in conventional ones regardless of a reduced elongation due to reduced thickness and increased strength, and its production method.
SOLUTION: The high-strength steel sheet excellent in expansion moldability for a 3-pieces can includes, by mass, 0.018-0.060% C, ≤0.02% Si, 0.20-0.30% Mn, ≤0.025% P, ≤0.025% S, 0.020-0.080% Al, 0.003-0.013% N and the balance being Fe and unavoidable impurities. The steel sheet has Rockwell hardness of ≥52 and r value(s) of ≥1.0 in a direction L and/or a direction C, provided that the direction L is defined as the direction parallel to the rolling direction on the steel sheet surface and the direction C is defined as the direction perpendicular to direction L. The steel sheet is excellent in expansion moldability and does not crack in expansion molding performed in the direction in which the r value is ≥1.0 as the direction of expansion. A production method therefor is also provided.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种3片罐的钢板，其与常规的相比具有更高的膨胀成型性，而不管由于减小的厚度和增加的强度而导致的伸长率降低，及其制造方法。解决方案：3片的膨胀成型性优异的高强度钢板，以质量计含有0.018-0.060％C，≤0.02％Si，0.20-0.30％Mn，≤0.025％P，≤0.025 ％S，0.020-0.080％Al，0.003-0.013％N，余量为Fe和不可避免的杂质。钢板的方向L和/或方向C的洛氏硬度≥52，r值（s）≥1.0，条件是方向L被定义为在钢板表面上平行于轧制方向的方向，方向C被定义为与方向L垂直的方向。该钢板在膨胀方向上以r值≥1.0的方向进行膨胀成形时，膨胀成型性优异，不发生裂纹。还提供了一种生产方法。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007197742A Cold rolled steel sheet for welded can, and its manufacturing method 审中-公开
标题翻译：用于焊接CAN的冷轧钢板及其制造方法
公开(公告)号：JP2007197742A
公开(公告)日：2007-08-09
申请号：JP2006015567
申请日：2006-01-24
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YOKOYA HIROICHI , TANAKA SEIICHI , MURAKAMI HIDEKUNI , NOGUCHI KOICHI
IPC分类号： C22C38/00 , B21B1/22 , C21D9/46 , C22C38/06 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a method for providing, with high productivity, a steel sheet for cans in which the formability of welded resealable cans can be remarkably improved and which has expanding workability capable of applying practical strength to can bodies after forming.
SOLUTION: In the steel sheet, the percentage of precipitated N is ≥85%, and the difference between hardness at a depth of 25 μm from the surface of the steel sheet in thickness direction and hardness in the central part of the steel sheet in thickness direction, after heating and holding at 170°C for 7 min, is ≥15 points by micro Vickers hardness. The steel sheet has a composition containing, by mass, 0.015 to 0.08% C, 0.10 to 0.60% Mn, ≤0.02% P, ≤0.02% S, 0.02 to 0.10% acid-soluble Al and ≤0.006% N. The sum of solid-solution N and solid-solution C, contained in the steel sheet, is 10 to 20 ppm and also a relation of [(solid-solution C)≥(solid-solution N)×2] is satisfied. Temper rolling is performed at a draft of 1.5 to 3.0% and a tension of 50 to 200 MPa using rolls of ≤470 mm roll diameter.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以高生产率提供罐头用钢板的方法，其中能够显着提高可焊接的可再密封罐的成型性，并且具有能够在罐体后施加实际强度的具有扩展的可加工性的方法成型。解决方案：在钢板中，析出的N的百分比为≥85％，厚度方向上的钢板表面的厚度为25μm的硬度与钢中央部的硬度的差在170℃下加热保持7分钟后，通过微维氏硬度≥15分。该钢板的组成为：含有0.015〜0.08％的C，0.10〜0.60％的Mn，≤0.02％的P，≤0.02％的S，0.02〜0.10％的酸溶性Al和≤0.006％的N。包含在钢板中的固溶体N和固溶体C为10〜20ppm，也满足[（固溶C）≥（固溶N）×2]的关系。使用辊径≤470mm的卷筒，以1.5〜3.0％的牵伸力和50〜200MPa的张力进行回火轧制。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2010106295A Cold-rolled steel sheet for drum can and method of producing the same 有权
标题翻译：用于鼓罐的冷轧钢板及其制造方法
公开(公告)号：JP2010106295A
公开(公告)日：2010-05-13
申请号：JP2008277543
申请日：2008-10-29
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI , NISHIMURA SATORU
IPC分类号： C22C38/00 , B21B3/00 , C21D9/46 , C22C38/06
摘要： PROBLEM TO BE SOLVED: To provide a cold-rolled steel sheet for a drum can which has particularly proper bake hardenability, has a casting yield, is inexpensive, also has excellent low temperature toughness, has sufficient strength even in retreatment, and is hard to be deformed, and to provide a method of producing the same. SOLUTION: The cold-rolled steel sheet for a drum can has a composition comprising, by mass, 0.0015 to 0.060% C, 0.0015 to 0.060% Si, 0.15 to 0.60% Mn, 0.0015 to 0.060% P, 0.0015 to 0.060% S, 0.015 to 0.060% Al and 0.0015 to COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有特别合适的烘烤淬透性，具有铸造成品率，便宜的滚筒用冷轧钢板，也具有优异的低温韧性，即使在再处理中也具有足够的强度，以及难以变形，并提供其制造方法。解决方案：用于滚筒的冷轧钢板可以具有质量为0.0015至0.060％的C，0.0015至0.060％的Si，0.15至0.60％的Mn，0.0015至0.060％的P，0.0015至0.060的组合物％S，0.015〜0.060％Al，0.0015〜<0.0050％N，余量为Fe与不可避免的杂质，C和N中固溶N，C的合计为0.0005〜0.0020％。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009007607A Steel sheet for extrathin vessel 有权
标题翻译：钢管钢板
公开(公告)号：JP2009007607A
公开(公告)日：2009-01-15
申请号：JP2007168533
申请日：2007-06-27
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TANAKA SEIICHI , HIRAI TAKUMI , TORISU KEIICHIRO , INAMI YOSHIHIRO , NOGUCHI KOICHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/06 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a steel sheet having excellent surface properties without causing slab cracks upon continuous casting and also suitable for flange work and combining high strength with high elongation, and to provide a method for producing the same.
SOLUTION: The steel sheet for the extrathin vessel and having excellent flange workability has a composition comprising, by mass, 0.03 to 0.07% C, ≤0.02% Si, 0.30 to 0.6% Mn, ≤0.02% P, ≤0.009% S, 0.02 to 0.05% Al and 0.006 to 0.01% N, satisfying the relationship of 1.72S+1.93N≤0.035, and the balance Fe with inevitable impurities, and is characterized in that the tensile test value in at least either the rolling direction or the sheet width direction orthogonal to the rolling direction shows a upper yield strength of ≥430 MPa and a total elongation value of ≥10%. The method for producing the same is also provided.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种具有优异的表面性能的钢板，而不会在连续铸造时引起板坯裂纹，并且也适用于凸缘加工并且具有高强度和高伸长率的组合，并提供其制造方法。解决方案：具有优异的法兰加工性的用于金刚石容器的钢板具有质量0.03〜0.07％的C，≤0.02％的Si，0.30〜0.6％的Mn，≤0.02％的P，≤0.009％ S，0.02〜0.05％的Al和0.006〜0.01％的N，满足1.72S +1.93N≤0.035的关系，余量为Fe与不可避免的杂质，其特征在于，至少轧制方向的拉伸试验值或与轧制方向正交的板宽度方向的屈服强度为≥430MPa，总伸长率为≥10％。还提供了其制造方法。版权所有（C）2009，JPO＆INPIT

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