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1. 发明申请

US20130340899A1 STEEL SHEET FOR HOT STAMPING USE, METHOD OF PRODUCTION OF SAME, AND METHOD OF PRODUCTION OF HIGH STRENGTH PART 审中-公开
标题翻译：用于烫印用途的钢板，其生产方法和生产高强度部件的方法
公开(公告)号：US20130340899A1
公开(公告)日：2013-12-26
申请号：US14003881
申请日：2011-03-09
申请人： Kazuhisa Kusumi , Yuji Ogawa , Masayuki Abe , Hidekuni Murakami , Kengo Takeda , Jun Maki
发明人： Kazuhisa Kusumi , Yuji Ogawa , Masayuki Abe , Hidekuni Murakami , Kengo Takeda , Jun Maki
IPC分类号： C22C38/22 , C22C38/32 , C22C38/04 , B21B1/22 , C22C38/06 , C22C38/02 , C22C38/00 , C21D8/00 , C22C38/28 , C22C38/14
CPC分类号： C22C38/02 , B21B1/22 , B21D22/022 , B32B15/013 , C21D6/005 , C21D8/005 , C21D8/0226 , C21D8/0236 , C21D8/0273 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/30 , C22C38/32
摘要： The present invention has as its object the provision of steel sheet for hot stamping use which is excellent in part strength after hot stamping and delayed fracture resistance comprised of large C content high strength steel sheet in which effective hydrogen traps are formed in the steel material.The steel sheet of the present invention solves this problem by forming Fe—Mn-based composite oxides in the steel sheet and trapping hydrogen at the interfaces of the composite oxides and matrix steel and in the voids around the composite oxides.Specifically, it provides steel sheet for hot stamping use which is comprised of chemical ingredients which contain, by mass %, C: 0.05 to 0.40%, Si: 0.02% or less, Mn: 0.1 to 3%, S: 0.02% or less, P: 0.03% or less, Al: 0.005% or less, Ti: 0.01% or less, N: 0.01% or less, one or both of Cr and Mo in a total of 0.005 to 1%, and O: 0.003 to 0.03% and which have a balance of Fe and unavoidable impurities and which contains average diameter 0.1 to 15 μm Fe—Mn-based composite oxide particles dispersed in the steel sheet or furthermore has crushed voids around the composite oxide particles, a method of production of the same, and a method of production of a hot stamped high strength part.
摘要翻译：本发明的目的是提供一种热冲压用钢板，其特征在于，在钢材中形成有效的氢气阱的大型C含量高强度钢板的热冲压后具有优异的部分强度和延迟断裂性。本发明的钢板通过在钢板中形成Fe-Mn系复合氧化物并在复合氧化物和基质钢的界面以及复合氧化物周围的空隙中捕获氢来解决这个问题。具体地说，提供热冲压用钢板，其由以质量％计含有C：0.05〜0.40％，Si：0.02％以下，Mn：0.1〜3％，S：0.02％以下的化学成分构成，P：0.03％以下，Al：0.005％以下，Ti：0.01％以下，N：0.01％以下，Cr和Mo中的一种或两种，总计0.005〜1％，O：0.003〜 0.03％，余量由Fe和不可避免的杂质构成，平均直径为0.1〜15μm的Fe-Mn系复合氧化物粒子分散在钢板上，或者还具有复合氧化物粒子周围的破碎空隙。以及生产热冲压高强度部件的方法。

2. 发明授权

US10344360B2 Steel sheet for hot stamping use, method of production of same, and method of production of high strength part 有权
公开(公告)号：US10344360B2
公开(公告)日：2019-07-09
申请号：US14003881
申请日：2011-03-09
申请人： Kazuhisa Kusumi , Yuji Ogawa , Masayuki Abe , Hidekuni Murakami , Kengo Takeda , Jun Maki
发明人： Kazuhisa Kusumi , Yuji Ogawa , Masayuki Abe , Hidekuni Murakami , Kengo Takeda , Jun Maki
IPC分类号： C22C38/04 , C22C38/06 , C22C38/22 , C22C38/02 , B21D22/02 , C22C38/00 , C22C38/32 , B21B1/22 , C21D8/00 , C22C38/14 , C22C38/28 , B32B15/01 , C22C38/12 , C22C38/16 , C22C38/24 , C22C38/30 , C21D6/00 , C21D8/02
摘要： The present invention has as its object the provision of steel sheet for hot stamping use which is excellent in part strength after hot stamping and delayed fracture resistance comprised of large C content high strength steel sheet in which effective hydrogen traps are formed in the steel material.The steel sheet of the present invention solves this problem by forming Fe—Mn-based composite oxides in the steel sheet and trapping hydrogen at the interfaces of the composite oxides and matrix steel and in the voids around the composite oxides.Specifically, it provides steel sheet for hot stamping use which is comprised of chemical ingredients which contain, by mass %, C: 0.05 to 0.40%, Si: 0.02% or less, Mn: 0.1 to 3%, S: 0.02% or less, P: 0.03% or less, Al: 0.005% or less, Ti: 0.01% or less, N: 0.01% or less, one or both of Cr and Mo in a total of 0.005 to 1%, and O: 0.003 to 0.03% and which have a balance of Fe and unavoidable impurities and which contains average diameter 0.1 to 15 μm Fe—Mn-based composite oxide particles dispersed in the steel sheet or furthermore has crushed voids around the composite oxide particles, a method of production of the same, and a method of production of a hot stamped high strength part.

3. 发明申请

US20130000796A1 HIGH STRENGTH, HOT DIPPED GALVANIZED STEEL SHEET EXCELLENT IN SHAPEABILITY AND METHOD OF PRODUCTION OF SAME 有权
标题翻译：高强度，热镀锌钢板具有优异的成型性及其生产方法
公开(公告)号：US20130000796A1
公开(公告)日：2013-01-03
申请号：US13635805
申请日：2011-03-31
申请人： Kengo Takeda , Kazuhisa Kusumi , Haruhiko Eguchi , Jun Hirowatari , Shintarou Fujii
发明人： Kengo Takeda , Kazuhisa Kusumi , Haruhiko Eguchi , Jun Hirowatari , Shintarou Fujii
IPC分类号： B32B15/01 , C21D8/02 , C23C2/02
CPC分类号： C22C38/38 , B32B15/013 , C21D6/00 , C21D8/0405 , C21D8/0447 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C23C2/06 , C23C2/28
摘要： High strength hot dipped galvanized steel sheet with little fluctuation in material quality at the time of production and excellent in shapeability is provided.By controlling the amount of addition of Ti instead of the addition of Nb or B, it is possible to obtain an effect of retarding recrystallization and grain growth even if annealing by a continuous annealing process in a temperature range of the general annealing temperature of 720° C. to a temperature of the lower of 800° C. or Ac3 temperature (easy annealing temperature region).Further, by controlling the rolling and heat treatment conditions, it is possible to control the ferrite phase rate, grain size of the low temperature transformed phases, ratio of average values of the nano hardnesses of the ferrite phase and low temperature transformed phases, and fluctuations of hardnesses of the low temperature transformed phases in a composite structure steel of ferrite and low temperature transformed phases and obtain high strength hot dipped galvanized steel sheet which has little fluctuation in material quality and is excellent in shapeability.
摘要翻译：提供了在制造时材料质量波动小且成形性优异的高强度热浸镀锌钢板。通过控制Ti的添加量而不是添加Nb或B，即使在通常退火温度为720°的温度范围内通过连续退火工艺进行退火，也可以获得延迟再结晶和晶粒生长的效果 C.到800℃以下的温度或Ac3温度（容易退火温度区域）。此外，通过控制轧制和热处理条件，可以控制铁素体相速率，低温变形相的晶粒尺寸，铁素体相的纳米硬度的平均值与低温变形相的平均值的比例和波动在铁素体和低温转化相的复合结构钢中的低温变形相的硬度，得到材料质量波动小，成形性优异的高强度热浸镀锌钢板。

4. 发明授权

US09228244B2 High strength, hot dipped galvanized steel sheet excellent in shapeability and method of production of same 有权
标题翻译：高强度，热浸镀锌钢板，其成型性优良，制造方法不同
公开(公告)号：US09228244B2
公开(公告)日：2016-01-05
申请号：US13635805
申请日：2011-03-31
申请人： Kengo Takeda , Kazuhisa Kusumi , Haruhiko Eguchi , Jun Hirowatari , Shintarou Fujii
发明人： Kengo Takeda , Kazuhisa Kusumi , Haruhiko Eguchi , Jun Hirowatari , Shintarou Fujii
IPC分类号： C21D6/00 , C21D8/04 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/28 , C22C38/38 , C23C2/06 , C23C2/28 , B32B15/01 , C22C38/24 , C22C38/26 , C22C38/32
CPC分类号： C22C38/38 , B32B15/013 , C21D6/00 , C21D8/0405 , C21D8/0447 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C23C2/06 , C23C2/28
摘要： A high strength hot dipped galvanized steel sheet is provided. By controlling the amount of addition of Ti instead of the addition of Nb or B, it is possible to obtain an effect of retarding recrystallization and grain growth even if annealing by a continuous annealing process in a temperature range of the general annealing temperature of 720° C. to a temperature of the lower of 800° C. or Ac3 temperature. By controlling the rolling and heat treatment conditions, it is possible to control the ferrite phase rate, grain size of the low temperature transformed phases, ratio of average values of the nano hardnesses of the ferrite phase and low temperature transformed phases, and fluctuations of hardnesses of the low temperature transformed phases in a composite structure steel of ferrite and low temperature transformed phases and obtain a high strength hot dipped galvanized steel sheet.
摘要翻译：提供高强度热浸镀锌钢板。通过控制Ti的添加量而不是添加Nb或B，即使在通常退火温度为720°的温度范围内通过连续退火工艺进行退火，也可以获得延迟再结晶和晶粒生长的效果 C.到800℃以下的温度或Ac3温度。通过控制轧制和热处理条件，可以控制铁素体相速率，低温变形相的晶粒尺寸，铁素体相的纳米硬度的平均值和低温变形相的平均值以及硬度的波动的铁素体和低温转化相的复合结构钢中的低温转化相，得到高强度热浸镀锌钢板。

5. 发明申请

US20140212660A1 MEDIUM CARBON STEEL SHEET FOR COLD WORKING AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：用于冷加工的中碳钢板及其制造方法
公开(公告)号：US20140212660A1
公开(公告)日：2014-07-31
申请号：US14343580
申请日：2011-09-22
申请人： Kengo Takeda , Masayuki Abe , Yasushi Tsukano , Takashi Aramaki , Shinichi Yamaguchi
发明人： Kengo Takeda , Masayuki Abe , Yasushi Tsukano , Takashi Aramaki , Shinichi Yamaguchi
IPC分类号： C21D8/02 , C22C38/58 , C22C38/54 , C22C38/50 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/42 , C22C38/38 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/60 , C21D1/18
CPC分类号： C21D8/0263 , C21D1/18 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C22C38/60 , Y10T428/265
摘要： Disclosed is a medium carbon steel sheet for cold working that has a hardness of 500 HV to 900 HV when subjected to high-frequency quenching in which a temperature is raised at an average heating rate of 100° C./second, the temperature is held at 1,000° C. for 10 seconds, and a quick cooling to a room temperature is carried out at an average cooling rate of 200° C./second. The medium carbon steel sheet includes, by mass %, C: 0.30 to 0.60%, Si: 0.06 to 0.30%, Mn: 0.3 to 2.0%, P: 0.03% or less, S: 0.0075% or less, Al: 0.005 to 0.10%, N: 0.001 to 0.01%, and Cr: 0.001 to 0.10%, the balance composed of Fe and inevitable impurities. An average diameter d of a carbide is 0.6 μm or less, a spheroidizing ratio p of the carbide is equal to or more than 70% and less than 90%, and the average diameter d (μm) of the carbide and the spheroidizing ratio p % of the carbide satisfy d≦0.04×p−2.6.
摘要翻译：公开了一种用于冷加工的中碳钢板，当以平均加热速率100℃/秒进行温度升高的高频淬火时，硬度为500HV至900HV，保持温度在1000℃下进行10秒钟，并以200℃/秒的平均冷却速度进行快速冷却至室温。中碳钢板以质量％计含有C：0.30〜0.60％，Si：0.06〜0.30％，Mn：0.3〜2.0％，P：0.03％以下，S：0.0075％以下，Al：0.005〜 0.10％，N：0.001〜0.01％，Cr：0.001〜0.10％，余量由Fe和不可避免的杂质构成。碳化物的平均直径d为0.6μm以下，碳化物的球化比p等于或大于70％且小于90％，碳化物的平均直径d（μm）和球化比p ％的碳化物满足d＆nlE; 0.04×p-2.6。

6. 发明申请

US20120006451A1 CARBON STEEL SHEET HAVING EXCELLENT CARBURIZATION PROPERTIES, AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：具有优良加热性能的碳钢板及其制造方法
公开(公告)号：US20120006451A1
公开(公告)日：2012-01-12
申请号：US12998035
申请日：2010-03-03
申请人： Masayuki Abe , Kengo Takeda , Hisayoshi Yatoh
发明人： Masayuki Abe , Kengo Takeda , Hisayoshi Yatoh
IPC分类号： C21D8/02 , C22C38/04 , C22C38/02
CPC分类号： C22C38/02 , C21D1/06 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0268 , C21D8/0426 , C21D8/0436 , C21D8/0463 , C21D8/0468 , C21D9/46 , C21D9/561 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/18 , C22C38/32 , C22C38/40 , C22C38/42 , C23C8/22
摘要： The invention provides a carbon steel sheet including C: 0.20% to 0.45% by mass, Si: 0.05% to 0.8% by mass, Mn: 0.85% to 2.0% by mass, P: 0.001% to 0.04% by mass, S: 0.0001% to 0.006% by mass, Al: 0.01% to 0.1% by mass, Ti: 0.005% to 0.3% by mass, B: 0.0005% to 0.01% by mass and N: 0.001% to 0.01% by mass, in which a K value that can be obtained from 3C+Mn+0.5Si is greater than or equal to 2.0; surface hardness is less than or equal to 77 on the Rockwell B Scale; and the average content of N in a zone from the surface to a depth of 100 μm is less than or equal to 100 ppm. This carbon steel sheet is configured to be carburized in a carburization atmosphere with a carbon potential of 0.6 or less.
摘要翻译：本发明提供一种碳素钢板，其中，C：0.20〜0.45质量％，Si：0.05〜0.8质量％，Mn：0.85〜2.0质量％，P：0.001〜0.04质量％，S： 0.0001〜0.006质量％，Al：0.01〜0.1质量％，Ti：0.005〜0.3质量％，B：0.0005〜0.01质量％，N：0.001〜0.01质量％，其中可以从3C + Mn + 0.5Si获得的K值大于或等于2.0; 表面硬度在Rockwell B Scale上小于或等于77; 并且从表面到100μm深度的区域中的N的平均含量小于或等于100ppm。该碳钢板被配置为在碳电势为0.6以下的渗碳气氛中渗碳。

7. 发明授权

US09840750B2 Medium carbon steel sheet for cold working and method for manufacturing the same 有权
公开(公告)号：US09840750B2
公开(公告)日：2017-12-12
申请号：US14343580
申请日：2011-09-22
申请人： Kengo Takeda , Masayuki Abe , Yasushi Tsukano , Takashi Aramaki , Shinichi Yamaguchi
发明人： Kengo Takeda , Masayuki Abe , Yasushi Tsukano , Takashi Aramaki , Shinichi Yamaguchi
IPC分类号： C22C38/04 , C21D8/02 , C22C38/38 , C22C38/58 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40 , C22C38/60 , C21D1/18 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/12 , C22C38/14 , C22C38/08 , C22C38/16
CPC分类号： C21D8/0263 , C21D1/18 , C22C38/001 , C22C38/002 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/40 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C22C38/60 , Y10T428/265
摘要： A medium carbon steel sheet for cold working that has a hardness of 500 HV to 900 HV when subjected to high-frequency quenching and a quick cooling to a room temperature is carried out. The medium carbon steel sheet includes, by mass %, C: 0.30 to 0.60%, Si: 0.06 to 0.30%, Mn: 0.3 to 2.0%, P: 0.03% or less, S: 0.0075% or less, Al: 0.005 to 0.10%, N: 0.001 to 0.01%, and Cr: 0.001 to 0.10%, the balance composed of Fe and inevitable impurities. An average diameter d of a carbide is 0.6 μm or less, a spheroidizing ratio p of the carbide is equal to or more than 70% and less than 90%, and the average diameter d (μm) of the carbide and the spheroidizing ratio p % of the carbide satisfy the expression d≦0.04×p−2.6.

8. 发明申请

US20120295123A1 STEEL PLATE FOR COLD FORGING AND PROCESS FOR PRODUCING SAME 有权
标题翻译：用于冷锻钢板及其生产方法
公开(公告)号：US20120295123A1
公开(公告)日：2012-11-22
申请号：US13522578
申请日：2011-01-25
申请人： Masayuki Abe , Kengo Takeda , Shuji Yamamoto , Yasushi Tsukano , Shinichi Yamaguchi
发明人： Masayuki Abe , Kengo Takeda , Shuji Yamamoto , Yasushi Tsukano , Shinichi Yamaguchi
IPC分类号： B32B7/02 , C22C38/04 , C22C38/06 , C21D11/00 , C22C38/14 , C22C38/18 , C22C38/16 , C22C38/12 , C22C38/08 , C22C38/02 , C21D8/02
CPC分类号： C22C38/02 , C21D1/68 , C21D7/02 , C21D7/04 , C21D8/0263 , C21D9/48 , C21D2211/005 , C21D2211/009 , C21D2221/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , Y10T428/12 , Y10T428/24967
摘要： This steel plate for cold forging includes a hot-rolled steel plate, wherein the hot-rolled steel plate includes: in terms of percent by mass, C: 0.13% to 0.20%; Si: 0.01% to 0.8%; Mn: 0.1% to 2.5%; P: 0.003% to 0.030%; S: 0.0001% to 0.008%; Al: 0.01% to 0.07%; N: 0.0001% to 0.02%; and O: 0.0001% to 0.0030%, with a remainder being Fe and inevitable impurities, an A value represented by the following formula (1) is in a range of 0.0080 or less, a thickness of the hot-rolled steel plate is in a range of 2 mm to 25 mm, and an area percentage of pearlite bands having lengths of 1 mm or more in a region of 4/10t to 6/10t when a plate thickness is indicated by t in a cross section of a plate thickness that is parallel to a rolling direction of the hot-rolled steel plate is in a range of not more than a K value represented by the following formula (2), A value=O%+S%+0.033Al% (1) K value=25.5×C%+4.5×Mn%−6 (2).
摘要翻译：该冷锻钢板包括热轧钢板，其中，所述热轧钢板包含：按质量％计，C：0.13〜0.20％。 Si：0.01〜0.8％ Mn：0.1〜2.5％ P：0.003％〜0.030％ S：0.0001％〜0.008％; Al：0.01〜0.07％ N：0.0001％〜0.02％; 和O：0.0001％〜0.0030％，余量为Fe和不可避免的杂质，由下式（1）表示的A值在0.0080以下的范围内，热轧钢板的厚度为范围为2mm至25mm，当板厚度以t表示的板厚度的横截面中，在4 / 10t至6 / 10t的区域中具有1mm或更大长度的珠光体带的面积百分比，平行于热轧钢板的轧制方向处于不大于由下式（2）表示的K值的范围内，A值= O％+ S％+ 0.033Al％（1）K值 = 25.5×C％+ 4.5×Mn％-6（2）。

9. 发明授权

US08945719B2 Steel plate for cold forging and process for producing same 有权
标题翻译：冷锻钢板及其制造方法
公开(公告)号：US08945719B2
公开(公告)日：2015-02-03
申请号：US13522578
申请日：2011-01-25
申请人： Masayuki Abe , Kengo Takeda , Shuji Yamamoto , Yasushi Tsukano , Shinichi Yamaguchi
发明人： Masayuki Abe , Kengo Takeda , Shuji Yamamoto , Yasushi Tsukano , Shinichi Yamaguchi
IPC分类号： B32B7/02 , C22C38/04 , C22C38/06 , C22C38/18 , C22C38/16 , C22C38/12 , C22C38/08 , C22C38/02 , C21D8/02 , C21D11/00 , C22C38/14 , C22C38/00 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C21D1/68 , C21D7/02 , C21D7/04 , C21D9/48
CPC分类号： C22C38/02 , C21D1/68 , C21D7/02 , C21D7/04 , C21D8/0263 , C21D9/48 , C21D2211/005 , C21D2211/009 , C21D2221/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/04 , C22C38/06 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , Y10T428/12 , Y10T428/24967
摘要： This steel plate for cold forging includes a hot-rolled steel plate, wherein the hot-rolled steel plate includes: in terms of percent by mass, C: 0.13% to 0.20%; Si: 0.01% to 0.8%; Mn: 0.1% to 2.5%; P: 0.003% to 0.030%; S: 0.0001% to 0.008%; Al: 0.01% to 0.07%; N: 0.0001% to 0.02%; and O: 0.0001% to 0.0030%, with a remainder being Fe and inevitable impurities, an A value represented by the following formula (1) is in a range of 0.0080 or less, a thickness of the hot-rolled steel plate is in a range of 2 mm to 25 mm, and an area percentage of pearlite bands having lengths of 1 mm or more in a region of 4/10t to 6/10t when a plate thickness is indicated by t in a cross section of a plate thickness that is parallel to a rolling direction of the hot-rolled steel plate is in a range of not more than a K value represented by the following formula (2), A value=O%+S%+0.033Al% (1) K value=25.5×C%+4.5×Mn%−6 (2).
摘要翻译：该冷锻钢板包括热轧钢板，其中，所述热轧钢板包含：按质量％计，C：0.13〜0.20％。 Si：0.01〜0.8％ Mn：0.1〜2.5％ P：0.003％〜0.030％ S：0.0001％〜0.008％; Al：0.01〜0.07％ N：0.0001％〜0.02％; 和O：0.0001％〜0.0030％，余量为Fe和不可避免的杂质，由下式（1）表示的A值在0.0080以下的范围内，热轧钢板的厚度为范围为2mm至25mm，当板厚度以t表示的板厚度的横截面中，在4 / 10t至6 / 10t的区域中具有1mm或更大长度的珠光体带的面积百分比，平行于热轧钢板的轧制方向处于不大于由下式（2）表示的K值的范围内，A值= O％+ S％+ 0.033Al％（1）K值 = 25.5×C％+ 4.5×Mn％-6（2）。

10. 发明授权

US08001369B2 Information processing unit for automatically copying system information 有权
标题翻译：用于自动复制系统信息的信息处理单元
公开(公告)号：US08001369B2
公开(公告)日：2011-08-16
申请号：US12128349
申请日：2008-05-28
申请人： Kengo Takeda
发明人： Kengo Takeda
IPC分类号： G06F15/177
CPC分类号： G06F8/65
摘要： An information processing unit is provided, which includes a first memory, a second memory, and a controller. The first memory stores a BIOS program beforehand that is executed at a startup of the unit so as to allow peripheral devices to operate normally. The first memory also stores initial BIOS data beforehand. The second memory stores BIOS data with which the BIOS program is executed. The controller is configured to: (a) if the initial BIOS data is updated, read the updated BIOS data including updated data from the first memory and writes the updated BIOS data into the second memory; and (b) execute the BIOS program using the updated BIOS data written in the second memory.
摘要翻译：提供一种信息处理单元，其包括第一存储器，第二存储器和控制器。第一存储器预先存储在单元的启动时执行的BIOS程序，以便允许外围设备正常工作。第一个存储器也预先存储初始BIOS数据。第二个存储器存储执行BIOS程序的BIOS数据。所述控制器被配置为：（a）如果所述初始BIOS数据被更新，则从所述第一存储器读取包括更新的数据的更新的BIOS数据，并将更新的BIOS数据写入所述第二存储器; 和（b）使用在第二存储器中写入的更新的BIOS数据来执行BIOS程序。

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