公开(公告)号：US20110168303A1

公开(公告)日：2011-07-14

申请号：US12936681

申请日：2009-04-10

申请人： Toshikatsu Kato ,  Makoto Aratani ,  Katsuhito Kawamura ,  Katsumi Kojima ,  Kaku Sato ,  Shigeko Sujita ,  Fumio Aoki

发明人： Toshikatsu Kato ,  Makoto Aratani ,  Katsuhito Kawamura ,  Katsumi Kojima ,  Kaku Sato ,  Shigeko Sujita ,  Fumio Aoki

IPC分类号： C21D8/02 ,  C21D9/46 ,  C22C38/60 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

CPC分类号： C22C38/04 ,  C21D8/0236 ,  C21D8/0268 ,  C21D8/0273 ,  C21D9/46 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/02 ,  C22C38/06

摘要： A steel sheet for containers that has a hardness of 500 MPa or more and superior workability and a method for producing the steel sheet are provided. A steel containing, in percent by mass, 0.01% to 0.05% carbon, 0.04% or less silicon, 0.1% to 1.2% manganese, 0.10% or less sulfur, 0.001% to 0.100% aluminum, 0.10% or less nitrogen, and 0.0020% to 0.100% phosphorus, the balance being iron and incidental impurities, is subjected to hot rolling at a finishing temperature of (Ar3 transformation temperatute−30)° C. or more and a coiling temperature of 400° C. to 750° C., is subjected to pickling and cold rolling, is subjected to continuous annealing including overaging treatment, and is subjected to second cold rolling at a reduction rate of 20% to 50%, thus providing a high-strength steel sheet for containers that has a tensile strength of 500 MPa or more and a proof stress difference between width and rolling directions of 20 MPa or less.

摘要翻译： 提供硬度为500MPa以上，加工性优异的容器用钢板和钢板的制造方法。 含有以质量计0.01％至0.05％的碳，0.04％或更少的硅，0.1％至1.2％的锰，0.10％或更少的硫，0.001％至0.100％的铝，0.10％或更少的氮和0.0020 在（Ar 3相变温度-30℃）℃以上的卷取温度和400℃〜750℃的卷取温度下，将0.01〜0.100％的磷（余量为铁和杂质）进行热轧。 进行酸洗和冷轧，进行包括过时处理的连续退火，并且以20％至50％的压下率进行第二次冷轧，从而提供具有拉伸强度的容器用高强度钢板 强度为500MPa以上，宽度和轧制方向之间的有效应力差为20MPa以下。

公开(公告)号：US20110076177A1

公开(公告)日：2011-03-31

申请号：US12935564

申请日：2009-04-01

申请人： Makoto Aratani ,  Toshikatsu Kato ,  Katsuhito Kawamura ,  Takumi Tanaka ,  Katsumi Kojima ,  Kaku Sato ,  Shigeko Sujita ,  Masaki Koizumi

发明人： Makoto Aratani ,  Toshikatsu Kato ,  Katsuhito Kawamura ,  Takumi Tanaka ,  Katsumi Kojima ,  Kaku Sato ,  Shigeko Sujita ,  Masaki Koizumi

IPC分类号： C22C38/60 ,  B21B27/06 ,  C22C38/06 ,  C22C38/04 ,  C22C38/00 ,  C21D8/02

CPC分类号： C21D8/0263 ,  B21B1/26 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0442 ,  C21D8/0473 ,  C21D2211/004 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet for cans that has a yield stress of at least 500 Mpa after coating and baking and a method for manufacturing the steel sheet for cans are provided. The steel sheet for cans contains, on the basis of mass percent, C: more than 0.02% but 0.10% or less, Si: 0.10% or less, Mn: 1.5% or less, P: 0.20% or less, S: 0.20% or less, Al: 0.10% or less, N: 0.0120% to 0.0250%, dissolved N being 0.0100% or more, and a remainder of Fe and incidental impurities. A high-strength material can be obtained by maintaining the absolute quantity of dissolved N at a certain value or more and performing hardening by quench aging and strain aging, for example, in a printing process, a film lamination process, or a drying and baking process performed before can manufacturing. In the manufacture, hot rolling is performed at a slab extraction temperature of 1200° C. or more and a finish rolling temperature of (Ar3 transformation temperature—30)° C. or more, and coiling is performed at 650° C. or less.

摘要翻译： 提供了涂布烘烤后屈服应力为500MPa以上的罐用钢板和罐用钢板的制造方法。 罐头用钢板以质量％计含有C：0.02％以上且0.10％以下，Si：0.10％以下，Mn：1.5％以下，P：0.20％以下，S：0.20 ％以下，Al：0.10％以下，N：0.0120％〜0.0250％，N为0.0100％以上，余量为Fe及杂质。 通过将溶解的N的绝对量保持在一定值以上，通过淬火时效和应变时效进行硬化，例如在印刷工序，薄膜层压工序，干燥烘烤中，可以得到高强度材料 可以制造之前执行的过程。 在制造中，以1200℃以上的板坯提取温度和（Ar 3相变温度-30℃）以上的精轧温度进行热轧，并且在650℃以下进行卷取 。

公开(公告)号：US5534089A

公开(公告)日：1996-07-09

申请号：US360250

申请日：1994-12-20

申请人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato

发明人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato

IPC分类号： C21D8/04 ,  C22C38/00 ,  C21D8/02

CPC分类号： C21D8/0426 ,  C22C38/001 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478

摘要： A method of manufacturing a small planar anisotropic high-strength can steel plate. Hot-rolling is first performed on a steel slab at an Ar.sub.3 transformation point or higher to obtain hot rolled steel strip. The slab has a composition which essentially consists of and which satisfies the conditions of: C.ltoreq.0.004%, Si.ltoreq.0.02%, Mn=0.5%-3%, P.ltoreq.0.02%, Al=0.02%-0.05%, 0.008%.ltoreq.N.ltoreq.0.024%, and the rest being Fe and unavoidable impurities, wherein the conditions have the relationship of:Al%/N%>2. Then, the resultant strip is cooled at a cooling rate of 10.degree. C./s or higher so as to reach a temperature of 650.degree. C. or lower. The resultant strip is further coiled at a temperature in a range of from 550.degree. C. to 400.degree. C. Cold-rolling is performed on the resultant strip at a reduction ratio of 82% or higher preceded by removing a scale to obtain cold rolled steel strip. Subsequently, continuous annealing is performed on the resultant cold rolled steel strip at a recrystallization temperature or higher, being followed by temper-rolling.

摘要翻译： 一种制造小型平面各向异性高强度钢板的方法。 首先在Ar3相变点以上的钢坯上进行热轧，得到热轧钢带。 该板坯具有基本上由以下条件构成的组成：C≤0.004％，Si <0.02％，Mn = 0.5％-3％，P <= 0.02％，Al = 0.02％ 0.05％，0.008％，N = 0.024％，其余为Fe和不可避免的杂质，其中条件具有以下关系：Al％/ N％> 2。 然后，以10℃/ s以上的冷却速度冷却所得到的带材，达到650℃以下的温度。 所得到的带材在550℃至400℃的温度下进一步盘绕。在所得到的带材上以82％或更高的压下率进行冷轧，然后除去水垢以获得冷轧 钢带。 随后，在所得到的冷轧钢带上，在再结晶温度以上进行连续退火，随后进行回火处理。

公开(公告)号：US5725697A

公开(公告)日：1998-03-10

申请号：US360348

申请日：1994-12-21

申请人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato

发明人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato

IPC分类号： C21D8/04 ,  C22C38/12

CPC分类号： C22C38/12 ,  C21D8/0436 ,  C21D8/0426 ,  C21D8/0468

摘要： A method of manufacturing a cold-rolled can steel sheet having less planar anisotropy and achieving good workability. Rough-rolling is first performed on a continuously-cast slab. The slab has a composition essentially consisting of: C: 0.004 wt % or lower; Mn: 0.05-0.5 wt %; P: 0.02 wt % or lower; Al: 0.005-0.07 wt %; N: 0.004 wt % or lower; and Nb: 0.001-0.018 wt %, the rest being Fe and unavoidable impurities. A resultant sheet bar is then subjected to hot rolling which is completed at a finishing rolling temperature at an Ar.sub.3 transformation point or higher. The resultant sheet bar is coiled at a temperature range from 450.degree.-700.degree. C. Subsequently, the resultant sheet bar undergoes primary cold rolling before continuous annealing, which is performed at a recrystallization temperature or higher, and secondary cold rolling. The primary and secondary cold rolling are respectively performed at reduction ratios satisfying the following conditions of: 88%.gtoreq.CR.sub.1 %+0.36.times.CR.sub.2 .ltoreq.105% wherein CR.sub.1 : reduction ratio of the primary cold rolling CR.sub.2 : reduction ratio of the secondary cold rolling

摘要翻译： 制造平面各向异性小的冷轧钢板的制造方法，加工性良好。 首先在连续铸造的板坯上进行粗轧。 板坯的组成基本上由以下组成：C：0.004重量％以下; Mn：0.05〜0.5重量％ P：0.02重量％以下; Al：0.005-0.07重量％ N：0.004重量％以下; 和Nb：0.001-0.018重量％，其余为Fe和不可避免的杂质。 然后对得到的薄板坯进行在Ar3相变点以上的精轧条件下完成的热轧。 所得板坯在450〜-90℃的温度范围内卷绕。接着，在再结晶温度以上进行二次冷轧，连续退火前进行一次冷轧。 一次冷轧和二次冷轧分别以满足以下条件的压下率进行：88％> = CR1％+ 0.36×CR2 <105％其中CR1：二次冷轧CR2的减速比：次级 冷轧

公开(公告)号：US5587027A

公开(公告)日：1996-12-24

申请号：US389045

申请日：1995-02-15

申请人： Akio Tosaka ,  Chikako Fujinaga ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato

发明人： Akio Tosaka ,  Chikako Fujinaga ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato

IPC分类号： C21D3/04 ,  C21D8/04 ,  C22C38/00 ,  C22C38/04 ,  C22C38/06 ,  C21D8/00

CPC分类号： C22C38/004 ,  C21D8/0473 ,  C22C38/002 ,  C22C38/04 ,  C21D3/04 ,  C21D8/0426

摘要： A method for manufacturing a canning steel sheet with non-aging property and superior workability uses, as a starting material, an ultra-low-carbon steel slab composed of from 0.0015% to 0.0100% by weight C, up to 0.20% by weight Si, from 0.10% to 1.20% by weight Mn, from 0.02% to 0.10% by weight Al, from 0.005% to 0.040% by weight P, up to 0.015% by weight S, up to 0.005% by weight N, and balance iron and unavoidable impurities. The manufacturing method includes hot rolling the steel, cold rolling the steel at a reduction ratio not less than 70% after pickling, and recrystallization annealing the steel by using a continuous annealing furnace in an atmosphere having a hydrogen content not less than 3% and a dew point not lower than -20.degree. C. at a temperature not lower than 730.degree. C. so that the content of remained C in the steel is kept less than 0.0015% by weight. At least one element selected from Nb, Ti and B may be added in predetermined amounts to the above composition. The steel sheet suitable for canning is efficiently manufactured by a continuous annealing process.

摘要翻译： 制造具有非时效性和优良加工性的罐头钢板的制造方法使用由0.0015-0.0100重量％C，至多0.20重量％的Si组成的超低碳钢板坯作为原料， ，0.10重量％至1.20重量％的Mn，0.02重量％至0.10重量％的Al，0.005重量％至0.040重量％的P，至多0.015重量％的S，至多0.005重量％的N，余量为 和不可避免的杂质。 该制造方法包括对钢进行热轧，酸洗后以不低于70％的压下量进行冷轧，在氢含量不低于3％的气氛中使用连续退火炉，对钢进行再结晶退火， 在不低于730℃的温度下露点不低于-20℃，使得钢中残留C的含量保持在0.0015重量％以下。 选自Nb，Ti和B中的至少一种元素可以以上述组成加入预定量。 通过连续退火工艺有效地制造适于罐装的钢板。

公开(公告)号：US6063214A

公开(公告)日：2000-05-16

申请号：US287473

申请日：1994-08-08

申请人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato ,  Yoshihiro Okawa

发明人： Chikako Fujinaga ,  Akio Tosaka ,  Toshiyuki Kato ,  Kaku Sato ,  Hideo Kuguminato ,  Yoshihiro Okawa

IPC分类号： C21D8/02 ,  C21D8/04

CPC分类号： C21D9/48 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0436 ,  C21D8/0442 ,  C21D8/0473 ,  C22C38/004 ,  C21D8/0268

摘要： A method of producing a steel sheet useful for making cans. The method steps include hot-rolling a slab consisting of about 0.0005 to 0.01 wt % C, about 0.001 to 0.04 wt % N (the total of C and N is at least about 0.008 wt %), about 0.05 to 2.0 wt % Mn, about 0.005 wt % or less Al, about 0.01 wt % or less O at a finish rolling temperature within a temperature range of about the Ar.sub.3 point to about 950.degree. C., coiling the rolled material at a temperature range of about 400 to 600.degree. C., cold rolling the material, continuously annealing the material at a temperature higher than the recrystallization temperature, and then temper-rolling the material. The steel sheet exhibits good workability during can making and which can be formed into a can having high strength.

摘要翻译： 一种制造用于制造罐头的钢板的方法。 方法步骤包括热轧由约0.0005至0.01重量％的C，约0.001至0.04重量％的N（C和N的总和至少约0.008重量％），约0.05至2.0重量％的Mn， 约0.005重量％以下的Al，约0.01重量％以下的O，在约Ar3点〜约950℃的温度范围内的精轧温度下，在约400〜600℃的温度范围内卷取轧制材料 C.冷却材料，在高于再结晶温度的温度下对材料进行连续退火，然后对材料进行调质。 钢板在制罐时表现出良好的加工性，并且可以形成具有高强度的罐。