公开(公告)号：US08372221B2

公开(公告)日：2013-02-12

申请号：US13141129

申请日：2009-12-22

申请人： Katsumi Kojima ,  Takumi Tanaka ,  Masaki Tada ,  Makoto Aratani ,  Hiroki Iwasa

发明人： Katsumi Kojima ,  Takumi Tanaka ,  Masaki Tada ,  Makoto Aratani ,  Hiroki Iwasa

IPC分类号： C21D8/02

CPC分类号： C21D8/0426 ,  C21D8/0436 ,  C21D8/0463 ,  C21D9/48 ,  C21D9/52 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A method provides a slab by continuous casting of a steel having a component composition of, in mass %, C: 0.005% or less, Mn: 0.05 to 0.5%, Al: 0.01 to 0.10%, N: 0.0010 to 0.0070%, B: 0.15×N to 0.75×N (0.15 to 0.75 in terms of B/N), and one or both of Nb: 4×C to 20×C (4 to 20 in terms of Nb/C) and Ti: 2×C to l0×C (2 to 10 in terms of Ti/C), and the balance of Fe and inevitable impurity elements; rough rolling the slab; finish rolling the rough-rolled slab wherein 5% or more and less than 50% of the total amount of rolling reduction in the finish rolling is hot-rolled at a temperature lower than the Ar3 transformation point; winding the hot-rolled steel sheet at a winding temperature of 640 to 750 ° C.; pickling the coiled steel sheet; cold rolling the pickled steel sheet at a rolling reduction rate of 88 to 96%; and annealing the cold-rolled steel sheet in a temperature range of higher than 400 ° C. to a temperature that is 20 ° C. lower than the recrystallization temperature.

摘要翻译： 通过连续铸造具有质量％C：0.005％以下，Mn：0.05〜0.5％，Al：0.01〜0.10％，N：0.0010〜0.0070％，B ：0.15×N〜0.75×N（B / N为0.15〜0.75），Nb：4×C〜20×C（Nb / C为4〜20），Ti：2× C至10×C（以Ti / C计2至10），余量为Fe和不可避免的杂质元素; 粗轧板坯; 将精轧中的压下量的5％以上且小于等于50％的粗轧板进行精轧，在低于Ar 3相变点的温度下进行热轧， 在640〜750℃的卷绕温度下卷绕热轧钢板。 酸洗卷板钢板; 以88％〜96％的压下率冷轧酸洗钢板; 并在高于400℃的温度范围内对冷轧钢板退火至比再结晶温度低20℃的温度。

公开(公告)号：US20110272066A1

公开(公告)日：2011-11-10

申请号：US13141129

申请日：2009-12-22

申请人： Katsumi Kojima ,  Takumi Tanaka ,  Masaki Tada ,  Makoto Aratani ,  Hiroki Iwasa

发明人： Katsumi Kojima ,  Takumi Tanaka ,  Masaki Tada ,  Makoto Aratani ,  Hiroki Iwasa

IPC分类号： C21D8/02

CPC分类号： C21D8/0426 ,  C21D8/0436 ,  C21D8/0463 ,  C21D9/48 ,  C21D9/52 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A method provides a slab by continuous casting of a steel having a component composition of, in mass %, C: 0.005% or less, Mn: 0.05 to 0.5%, Al: 0.01 to 0.10%, N: 0.0010 to 0.0070%, B: 0.15×N to 0.75×N (0.15 to 0.75 in terms of B/N), and one or both of Nb: 4×C to 20×C (4 to 20 in terms of Nb/C) and Ti: 2×C to 10×C (2 to 10 in terms of Ti/C), and the balance of Fe and inevitable impurity elements; rough rolling the slab; finish rolling the rough-rolled slab wherein 5% or more and less than 50% of the total amount of rolling reduction in the finish rolling is hot-rolled at a temperature lower than the Ar3 transformation point; winding the hot-rolled steel sheet at a winding temperature of 640 to 750° C.; pickling the coiled steel sheet; cold rolling the pickled steel sheet at a rolling reduction rate of 88 to 96%; and annealing the cold-rolled steel sheet in a temperature range of higher than 400° C. to a temperature that is 20° C. lower than the recrystallization temperature.

摘要翻译： 通过连续铸造具有质量％C：0.005％以下，Mn：0.05〜0.5％，Al：0.01〜0.10％，N：0.0010〜0.0070％，B ：0.15×N〜0.75×N（B / N为0.15〜0.75），Nb：4×C〜20×C（Nb / C为4〜20），Ti：2× C至10×C（以Ti / C计为2至10），余量为Fe和不可避免的杂质元素; 粗轧板坯; 将精轧中的压下量的5％以上且小于等于50％的粗轧板进行精轧，在低于Ar 3相变点的温度下进行热轧， 在640〜750℃的卷绕温度下卷绕热轧钢板。 酸洗卷板钢板; 以88％〜96％的压下率冷轧酸洗钢板; 并在高于400℃的温度范围内对冷轧钢板退火至比再结晶温度低20℃的温度。

公开(公告)号：US20110108168A1

公开(公告)日：2011-05-12

申请号：US12933117

申请日：2009-03-18

申请人： Takumi Tanaka ,  Katsumi Kojima ,  Makoto Aratani ,  Hiroki Iwasa

发明人： Takumi Tanaka ,  Katsumi Kojima ,  Makoto Aratani ,  Hiroki Iwasa

IPC分类号： C21D8/02 ,  C22C38/00

CPC分类号： C21D8/005 ,  B22D11/001 ,  B22D11/124 ,  C21D8/0436 ,  C21D8/0442 ,  C21D8/0473 ,  C21D9/48 ,  C21D2211/004 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet for a can has a yield strength of 450 MPa or more, and the occurrence of cracking at a slab corner being prevented in a continuous casting process. The steel sheet contains 0.03%-0.10% C, 0.01%-0.5% Si, 0.001%-0.100% P, 0.001%-0.020% S, 0.01%-0.10% Al, 0.005%-0.012% N, and the balance being Fe and incidental impurities, in which when Mnf=Mn [% by mass]−1.71×S [% by mass], Mnf is in the range of 0.3 to 0.6. The steel sheet has microstructures that do not contain a pearlite microstructure.

摘要翻译： 罐用钢板的屈服强度为450MPa以上，在连续铸造工序中，在板坯角部发生龟裂。 钢板含有0.03％-0.10％C，0.01％-0.5％Si，0.001％-0.100％P，0.001％-0.020％S，0.01％-0.10％Al，0.005％-0.012％N，余量为 Fe和杂质，当Mnf = Mn [质量％] -1.71×S [质量％]时，Mnf在0.3〜0.6的范围内。 钢板具有不含珠光体组织的微结构。

公开(公告)号：US20130045128A1

公开(公告)日：2013-02-21

申请号：US13513113

申请日：2010-11-29

申请人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa

发明人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa

IPC分类号： C22C38/04 ,  C22C38/02 ,  C22C38/06 ,  B21B1/08

CPC分类号： B22D11/001 ,  B22D11/12 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0468 ,  C21D9/46 ,  C21D9/48 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A high-strength, high-workability tin mill black plate contains 0.070% to less than 0.080% C, 0.003% to 0.10% Si, 0.51% to 0.60% Mn, and the like on a mass basis and has a tensile strength of 500 MPa or more and a yield elongation of 10% or more. The average size and elongation rate of crystal grains are 5 μm or more and 2.0 or less, respectively, in cross section in the rolling direction thereof. The hardness difference obtained by subtracting the average Vickers hardness of a cross section ranging from a surface to a depth equal to one-eighth of the thickness of the plate from the average Vickers hardness of a cross section ranging from a depth equal to three-eighths of the plate thickness to a depth equal to four-eighths of the plate thickness is 10 points or more and/or the maximum Vickers hardness difference is 20 points or more.

摘要翻译： 高强度，高加工性的锡磨黑板以质量计含有0.070％至小于0.080％的C，0.003％至0.10％的Si，0.51％至0.60％的Mn等，并且拉伸强度为500 MPa以上，屈服伸长率为10％以上。 在其轧制方向的截面中，晶粒的平均尺寸和伸长率分别为5μm以上且2.0以下。 通过从等于八分之一深度的截面的横截面的平均维氏硬度中减去从表面到等于板的厚度的八分之一的横截面的平均维氏硬度所获得的硬度差 的厚度达到板厚的四分之八的深度为10点以上和/或最大维氏硬度差为20点以上。

公开(公告)号：US08557065B2

公开(公告)日：2013-10-15

申请号：US13513113

申请日：2010-11-29

申请人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa

发明人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa

IPC分类号： C21D8/04

CPC分类号： B22D11/001 ,  B22D11/12 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0468 ,  C21D9/46 ,  C21D9/48 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A high-strength, high-workability steel sheet for cans contains 0.070% to less than 0.080% C, 0.003% to 0.10% Si, 0.51% to 0.60% Mn, and the like on a mass basis and has a tensile strength of 500 MPa or more and a yield elongation of 10% or more. The average size and elongation rate of crystal grains are 5 μm or more and 2.0 or less, respectively, in cross section in the rolling direction thereof. The hardness difference obtained by subtracting the average Vickers hardness of a cross section ranging from a surface to a depth equal to one-eighth of the thickness of the sheet from the average Vickers hardness of a cross section ranging from a depth equal to three-eighths of the sheet thickness to a depth equal to four-eighths of the sheet thickness is 10 points or more and/or the maximum Vickers hardness difference is 20 points or more.

摘要翻译： 用于罐的高强度，高加工性钢板包含0.070％至小于0.080％的C，0.003％至0.10％的Si，0.51％至0.60％的Mn等，并且具有500的拉伸强度 MPa以上，屈服伸长率为10％以上。 在其轧制方向的截面中，晶粒的平均尺寸和伸长率分别为5μm以上且2.0以下。 通过从等于八分之一深度的截面的平均维氏硬度的平均维氏硬度减去从表面到等于片材厚度的八分之一的横截面的平均维氏硬度所获得的硬度差 的厚度为板厚的四分之八的深度为10点以上和/或最大维氏硬度差为20点以上。

公开(公告)号：US20130294963A1

公开(公告)日：2013-11-07

申请号：US13990596

申请日：2011-11-22

申请人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa ,  Yoichi Tobiyama

发明人： Masaki Tada ,  Takumi Tanaka ,  Katsumi Kojima ,  Hiroki Iwasa ,  Yoichi Tobiyama

IPC分类号： C22C38/06 ,  C22C38/00 ,  C22C38/04 ,  C22C38/02 ,  B22D11/00 ,  B22D11/12

CPC分类号： B22D11/001 ,  B22D11/12 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0268 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0468 ,  C21D9/46 ,  C21D9/48 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet is provided containing C: 0.070% or more and less than 0.080%, Si: 0.003% or more and 0.10% or less, Mn: 0.51% or more and 0.60% or less, wherein the average grain size is 5 μm or more, the grain elongation rate is 2.0 or less, the difference in hardness is 10 points or more and/or 20 points or more depending on how it is determined, the tensile strength is 500 MPa or more, and the elongation after fracture is 10% or more.

摘要翻译： 提供一种钢板，其含有C：0.070％以上且小于0.080％，Si：0.003％以上且0.10％以下，Mn：0.51％以上且0.60％以下，其中平均粒径为5μm 以上，根据测定结果，拉伸强度为500MPa以上，硬度差为10点以上20分以上，断裂后的伸长率为 10％以上。

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：US20140007990A1

公开(公告)日：2014-01-09

申请号：US14005126

申请日：2012-03-15

申请人： Katsumi Kojima ,  Takumi Tanaka ,  Mikito Suto ,  Masaki Tada ,  Yoichi Tobiyama

发明人： Katsumi Kojima ,  Takumi Tanaka ,  Mikito Suto ,  Masaki Tada ,  Yoichi Tobiyama

IPC分类号： C22C38/08 ,  C22C38/00 ,  C22C38/02 ,  C21D8/00 ,  C22C38/06

CPC分类号： C22C38/08 ,  B65D83/38 ,  C21D8/005 ,  C21D8/0205 ,  C21D8/021 ,  C21D8/0226 ,  C21D8/0436 ,  C21D8/0442 ,  C21D8/0473 ,  C21D2211/004 ,  C21D2211/005 ,  C22C1/02 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet containing C: 0.02% or more and 0.10% or less, Si: 0.01% or more and 0.5% or less, P: 0.001% or more and 0.100% or less, S: 0.001% or more and 0.020% or less, N: 0.007% or more and 0.025% or less, Al: 0.01% or more and {−4.2×N (%)+0.11} % or less, Mnf: 0.10% or more and less than 0.30% where Mnf is defined by equation Mnf=Mn−1.71×S, and the balance being Fe and inevitable impurities, in which the steel sheet has a thickness of 0.35 (mm) or less, the product of the lower yield point (N/mm2) of the steel sheet and the thickness (mm) is 160 (N/mm) or less, and the product of the upper yield point (N/mm2) of the steel sheet is 52.0 (N) or more.

摘要翻译： 含有C：0.02％以上且0.10％以下，Si：0.01％以上且0.5％以下，P：0.001％以上且0.100％以下的钢板，S：0.001％以上且0.020％以下，或 更少，N：0.007％以上且0.025％以下，Al：0.01％以上，{-4.2×N（％）+ 0.11}％以下，Mnf：0.10％以上且小于0.30％，Mnf为 由Mnf = Mn-1.71×S等式定义，余量为Fe和不可避免的杂质，其中钢板的厚度为0.35（mm）以下，则屈服点的低屈服点（N / mm2）的乘积 钢板，厚度（mm）为160（N / mm）以下，钢板的上屈服点（N / mm2）的乘积为52.0（N）以上。

公开(公告)号：US09506131B2

公开(公告)日：2016-11-29

申请号：US14005126

申请日：2012-03-15

申请人： Katsumi Kojima ,  Takumi Tanaka ,  Mikito Suto ,  Masaki Tada ,  Yoichi Tobiyama

发明人： Katsumi Kojima ,  Takumi Tanaka ,  Mikito Suto ,  Masaki Tada ,  Yoichi Tobiyama

IPC分类号： C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C21D8/04 ,  C21D8/02 ,  C22C38/08 ,  C22C38/00 ,  B65D83/38 ,  C21D8/00 ,  C22C1/02

CPC分类号： C22C38/08 ,  B65D83/38 ,  C21D8/005 ,  C21D8/0205 ,  C21D8/021 ,  C21D8/0226 ,  C21D8/0436 ,  C21D8/0442 ,  C21D8/0473 ,  C21D2211/004 ,  C21D2211/005 ,  C22C1/02 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06

摘要： A steel sheet containing C: 0.02% or more and 0.10% or less, Si: 0.01% or more and 0.5% or less, P: 0.001% or more and 0.100% or less, S: 0.001% or more and 0.020% or less, N: 0.007% or more and 0.025% or less, Al: 0.01% or more and {−4.2×N (%)+0.11}% or less, Mnf: 0.10% or more and less than 0.30% where Mnf is defined by equation Mnf=Mn−1.71×S, and the balance being Fe and inevitable impurities, in which the steel sheet has a thickness of 0.35 (mm) or less, the product of the lower yield point (N/mm2) of the steel sheet and the thickness (mm) is 160 (N/mm) or less, and the product of the upper yield point (N/mm2) of the steel sheet is 52.0 (N) or more.

摘要翻译： 含有C：0.02％以上且0.10％以下，Si：0.01％以上且0.5％以下，P：0.001％以上且0.100％以下的钢板，S：0.001％以上且0.020％以下，或 更少，N：0.007％以上且0.025％以下，Al：0.01％以上，{-4.2×N（％）+ 0.11}％以下，Mnf：0.10％以上且小于0.30％，Mnf为 由Mnf = Mn-1.71×S等式定义，余量为Fe和不可避免的杂质，其中钢板的厚度为0.35（mm）以下，则屈服点的低屈服点（N / mm2）的乘积 钢板，厚度（mm）为160（N / mm）以下，钢板的上屈服点（N / mm2）的乘积为52.0（N）以上。

公开(公告)号：US10174393B2

公开(公告)日：2019-01-08

申请号：US14112717

申请日：2012-04-19

申请人： Mikito Suto ,  Katsumi Kojima ,  Masaki Tada ,  Takumi Tanaka ,  Yoichi Tobiyama

发明人： Mikito Suto ,  Katsumi Kojima ,  Masaki Tada ,  Takumi Tanaka ,  Yoichi Tobiyama

IPC分类号： C22C38/06 ,  C22C38/04 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C21D9/46

摘要： A steel sheet containing C: 0.0005% or more and 0.0035% or less, Si: 0.05% or less, Mn: 0.1% or more and 0.6% or less, P: 0.02% or less, S: less than 0.02%, Al: 0.01% or more and less than 0.10%, N: 0.0030% or less, B: 0.0010% or more, in which the relationship B/N≤3.0 is satisfied and the balance being Fe and inevitable impurities, and a microstructure in which the average integrated intensity f in the (111)[1-10] to (111)[-1-12] orientations on a plane parallel to a sheet surface at a position located at ¼ of the thickness of the steel sheet is 7.0 or more, in which an average ferrite grain size is 6.0 μm or more and 10.0 μm or less, and the relationships EAVE≥215 GPa, E0≥210 GPa, E45≥210 GPa, E90≥210 GPa, and −0.4≤Δr≤0.4 are satisfied.