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1. 发明授权

US5505797A Method of producing ferritic stainless steel strip with small intra-face anisotropy 失效
标题翻译：生产具有小面内各向异性的铁素体不锈钢带的方法
公开(公告)号：US5505797A
公开(公告)日：1996-04-09
申请号：US411293
申请日：1995-03-27
申请人： Takeshi Yokota , Susumu Satoh , Takumi Ujiro , Fusao Togashi , Makoto Kobayashi , Shohei Kanari
发明人： Takeshi Yokota , Susumu Satoh , Takumi Ujiro , Fusao Togashi , Makoto Kobayashi , Shohei Kanari
IPC分类号： B21B3/02 , C21D8/02 , C21D8/04
CPC分类号： C21D8/0405
摘要： A method of producing a ferritic stainless steel strip having reduced intra-face anisotropy as well as excellent r value and anti-ridging characteristics. The method involves subjecting a ferritic stainless steel slab to a hot rolling step including rough rolling having at least one rough rolling pass and a finish rolling having at least one finish rolling pass, followed by a hot-rolled sheet annealing, pickling, cold rolling and finish annealing. At least one of the passes in the rough rolling is conducted with the rolling temperature between about 970.degree. C. to about 1150.degree. C., the friction coefficient between the rolls and the rolled material of about 0.3 or less, and the rolling reduction ratio between about 40 to about 75%.
摘要翻译：一种具有降低的面内各向异性以及优异的r值和抗皱纹特性的铁素体不锈钢带的制造方法。该方法包括对铁素体不锈钢板进行包括具有至少一次粗轧过程的粗轧和至少一次精轧工序的精轧的热轧工序，接着进行热轧板退火，酸洗，冷轧，完成退火。粗轧中的至少一个通过轧制温度在约970℃至约1150℃之间，辊和轧制材料之间的摩擦系数约为0.3以下，轧制压下率在约40至约75％之间。

2. 发明授权

US06383309B1 Ferritic stainless steel plate 有权
公开(公告)号：US06383309B1
公开(公告)日：2002-05-07
申请号：US09725624
申请日：2000-11-29
申请人： Norimasa Hirata , Takeshi Yokota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
发明人： Norimasa Hirata , Takeshi Yokota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
IPC分类号： C22C3818
摘要： A ferritic stainless steel plate of excellent ridging resistance and formability, as well as a manufacturing method thereof are proposed. Specifically, the rolling is conducted at a rolling reduction of 30% or more in at least 1 pass and at a temperature difference between the center of the plate thickness and the surface of 200° C. or lower in a pass for the maximum rolling reduction to cause the area ratio of a {111} orientation colony to be present by 30% or more in the regions of ⅛ to ⅜ and ⅝ to ⅞ of the plate thickness. The {111} orientation colony is an assembly of adjacent crystals in which the angle of orientation vector for each of the crystals relative to the direction vector vertical to the rolling surface is within 15°.

3. 发明授权

US06645324B2 Method of manufacturing a ferritic stainless steel plate 失效
标题翻译：铁素体不锈钢板的制造方法
公开(公告)号：US06645324B2
公开(公告)日：2003-11-11
申请号：US10103445
申请日：2002-03-21
申请人： Norimasa Hirata , Takeshi Yokota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
发明人： Norimasa Hirata , Takeshi Yokota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
IPC分类号： C21D802
CPC分类号： C21D6/002 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D8/0405 , C22C38/002 , C22C38/40
摘要： A ferritic stainless steel plate of excellent ridging resistance and formability, as well as a manufacturing method thereof are proposed. Specifically, the rolling is conducted at a rolling reduction of 30% or more in at least 1 pass and at a temperature difference between the center of the plate thickness and the surface of 200° C. or lower in a pass for the maximum rolling reduction to cause the area ratio of a {111} orientation colony to be present by 30% or more in the regions of ⅛ to ⅜ and ⅝ to ⅞ of the plate thickness. The {111} orientation colony is an assembly of adjacent crystals in which the angle of orientation vector for each of the crystals relative to the direction vector vertical to the rolling surface is within 15°.
摘要翻译：提出了具有优异抗皱性和成形性的铁素体不锈钢板及其制造方法。具体而言，在至少1次通过中的压下率为30％以上，在板厚中心与200℃以下的温度差之间进行轧制，最终轧制压下率使{111}取向菌落的面积比在板厚的1/8〜3/8〜5/8〜7/8的范围内存在30％以上。 {111}取向菌落是相邻晶体的组合，其中每个晶体相对于垂直于滚动表面的方向矢量的<111>取向矢量的角度在15°以内。

4. 发明授权

US5851316A Ferrite stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics and process for producing same 失效
标题翻译：具有较小的平面各向异性和优异的抗皱纹特性的铁素体不锈钢板及其制造方法
公开(公告)号：US5851316A
公开(公告)日：1998-12-22
申请号：US719401
申请日：1996-09-24
申请人： Yoshihiro Yazawa , Takumi Ujiro , Susumu Satoh , Shintaro Kumazawa , Makoto Kobayashi , Masayuki Kasai
发明人： Yoshihiro Yazawa , Takumi Ujiro , Susumu Satoh , Shintaro Kumazawa , Makoto Kobayashi , Masayuki Kasai
IPC分类号： C21D8/04 , C22C38/28 , C22C38/00 , C22C38/18 , C22C38/22 , C22C38/32
CPC分类号： C22C38/28 , C21D8/0405 , C21D8/0426 , C21D8/0436 , C21D8/0463 , Y10T428/12
摘要： A ferritic stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics is disclosed. The sheet includes not more than about 0.02 wt % of C, about 0.01-1.0 wt % of Si, about 0.01-1.0 wt % of Mn, not more than about 0.08 wt % of P, not more than about 0.01 wt % of S, about 0.005-0.30 wt % of Al, about 11-50 wt % of Cr, about 0.1-5.0 wt % of Mo, not more than about 0.03 wt % N, with the contents of C and N satisfying the relations: about 0.005 wt %.ltoreq.(C+N)
摘要翻译：公开了具有较小的平面各向异性和优异抗皱纹特性的铁素体不锈钢板。该片材不超过约0.02重量％的C，约0.01-1.0重量％的Si，约0.01-1.0重量％的Mn，不大于约0.08重量％的P，不大于约0.01重量％的S ，约0.005-0.30重量％的Al，约11-50重量％的Cr，约0.1-5.0重量％的Mo，不大于约0.03重量％的N，C和N的含量满足关系：约0.005 （C + N）<约0.03重量％，（C / N）<约0.6。该片材还包括Ti的量，其量应满足以下关系：约5

5. 再颁专利

USRE40950E1 Ferritic stainless steel plate 有权
公开(公告)号：USRE40950E1
公开(公告)日：2009-11-10
申请号：US10678057
申请日：2000-03-14
申请人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
发明人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
IPC分类号： C22C38/18
CPC分类号： C22C38/46 , C21D8/0405 , C21D8/0436 , C21D8/0463 , C21D8/0473 , C22C38/001 , C22C38/002 , C22C38/48
摘要： The present invention provides a ferritic stainless steel sheet having excellent formability and excellent surface quality after forming. In specific means, the steel sheet contains, by mass %, 0.02 to 0.06% of C, 1.0% or less of Si, 1.0% or less of Mn, 0.05% or less of P, 0.01% or less of S, 0.005% or less of Al, 0.005% or less of Ti, 11 to 30% of Cr, 0.7% or less of Ni, the balance composed of Fe, and inevitable impurities, wherein N is contained to satisfy the relation to the C content represented by 0.06≦(C+N)≦0.12, and 1≦N/C, and V is contained to satisfy the relation to the N content represented by 1.5×10−3≦(V×N)≦1.5×10−2 (wherein C, N and V: the contents (mass %) of the elements).

6. 发明授权

US06419878B2 Fe-Cr alloy having excellent initial rust resistance, workability and weldability 失效
标题翻译： Fe-Cr合金具有优异的初始防锈性，可加工性和焊接性
公开(公告)号：US06419878B2
公开(公告)日：2002-07-16
申请号：US09867422
申请日：2001-05-31
申请人： Yoshihiro Yazawa , Takumi Ujiro , Susumu Satoh , Hiroki Ota
发明人： Yoshihiro Yazawa , Takumi Ujiro , Susumu Satoh , Hiroki Ota
IPC分类号： C22C3852
CPC分类号： C22C38/52 , C22C38/001 , C22C38/004 , C22C38/34 , C22C38/44 , C22C38/46 , C22C38/58
摘要： Fe—Cr alloy having excellent weldability and initial rust resistance with no requirement of greatly increasing the amount of elements such as Ni, Cu, Cr or Mo, addition of Nb or Ti and, further, excess reduction of C and N, in which the Fe—Cr alloy containing Cr in an amount of more than about 8.0 mass % and less than about 15 mass % is controlled specifically for the ingredients to contain Co: from about 0.01 mass % to about 0.5 mass %, V: from about 0.01 mass % to about 0.5 mass % and W: from about 0.001 mass % to about 0.05 mass %, and a value X represented by the following equation (1) and, preferably, a value Z represented by the following equation (2) satisfy: X≦11.0, and 0.03≦Z≦1.5 respectively: X value=Cr(mass %)+Mo(mass %)+1.5Si(mass %)+0.5Nb(mass %)+0.2V(mass %)+0.3W(mass %)+8Al(mass %)−Ni(mass %)−0.6Co(mass %)−0.5Mn(mass %)−30C(mass %)−30N(mass %)−0.5Cu(mass %) (1) Z value=(Co(mass %)+1.5V(mass %)+4.8W(mass %)) (2) ,and more preferably, C/N is controlled to be 0.6 or less.
摘要翻译： Fe-Cr合金具有优异的焊接性和初始防锈性，不需要大量增加元素如Ni，Cu，Cr或Mo，添加Nb或Ti，进一步减少C和N，其中对于含有Co的成分，含量大于约8.0质量％且小于约15质量％的Cr的Fe-Cr合金被控制为约0.01质量％至约0.5质量％，V：约0.01质量％至约0.5质量％，W：约0.001质量％至约0.05质量％，由下式（1）表示的值X，优选由下式（2）表示的值Z满足：X <= 11.0和0.03 <= Z <= 1.5，更优选将C / N控制在0.6以下。

7. 发明授权

US5948181A Hot-rolled stainless steel strip and method for producing the same 失效
标题翻译：热轧不锈钢带及其制造方法
公开(公告)号：US5948181A
公开(公告)日：1999-09-07
申请号：US939945
申请日：1997-09-29
申请人： Masaaki Kohno , Kazuhide Ishii , Kunio Fukuda , Takumi Ujiro , Susumu Satoh
发明人： Masaaki Kohno , Kazuhide Ishii , Kunio Fukuda , Takumi Ujiro , Susumu Satoh
IPC分类号： B21B45/08 , C21D8/02 , C22C38/18 , C21D7/13
CPC分类号： C21D8/0205 , B21B45/08 , C21D8/0278
摘要： A hot-rolled stainless steel strip contains at least 10 wt % Cr and 1.0 wt % or less of Si, and has a controlled scale thickness of not more than 2.5 .mu.m in the surface layer. The average thickness of the Si-containing oxide layer formed in the scale/alloy substitute interface is 0.1 .mu.m or less. The hot-rolled stainless steel strip is produced by hot rolling at an elongation rate of at least 150 or hot rough rolling to form a sheet bar, descaling by spraying superhigh pressure water to the surface of the sheet bar at an impact pressure (p) of 25 kgf/cm.sup.2 or more and a flow rate density of 0.002 l/cm.sup.2 or more, and then finish rolling so that the maximum reduction ratio per pass satisfies certain disclosed criteria.
摘要翻译：热轧不锈钢带含有至少10重量％的Cr和1.0重量％以下的Si，并且在表面层中具有不大于2.5μm的可控鳞片厚度。形成在刻度/合金替代界面中的含Si氧化物层的平均厚度为0.1μm以下。热轧不锈钢带通过以至少150的伸长率或热粗轧进行热轧制成，以形成片材，通过在冲击压力（p）下将超高压水喷射到片材的表面进行除鳞， 25kgf / cm 2以上，流量密度为0.002l / cm 2以上，进行精轧，使每通过最大压下率满足一定的公开标准。

8. 发明授权

US06217679B1 Method for producing chromium-containing hot rolled steel strip 失效
标题翻译：生产含铬热轧钢带的方法
公开(公告)号：US06217679B1
公开(公告)日：2001-04-17
申请号：US09194129
申请日：1998-11-23
申请人： Masaaki Kohno , Kunio Fukuda , Kazuhide Ishii , Susumu Satoh , Hiroshi Yaginuma , Takumi Ujiro
发明人： Masaaki Kohno , Kunio Fukuda , Kazuhide Ishii , Susumu Satoh , Hiroshi Yaginuma , Takumi Ujiro
IPC分类号： C21D802
CPC分类号： C21D8/0205 , C21D8/0226 , C21D8/0278
摘要： The invention provides hot-rolled steel strips which, after having been acid-pickled, can be directly used. The strips have no Cr-decreasing layer and no shot blasted marks on their surface and have good corrosion resistance. The invention also provides a technique of efficiently producing the hot-rolled steel strips. A steel slab having a Cr content of from 6.0 to 25.0 wt. % is hot-rolled, then coiled at a temperature not higher than 700° C., then optionally quenched in water immediately after the coiling, then annealing in a reducing atmosphere, and thereafter acid-pickled in a solution of nitric acid/hydrochloric acid.
摘要翻译：本发明提供了可以直接使用酸洗后的热轧钢带。带材没有减薄层，表面没有喷丸痕迹，具有良好的耐腐蚀性。本发明还提供了一种有效地生产热轧钢带的技术。 Cr含量为6.0〜25.0重量％的钢坯％热轧，然后在不高于700℃的温度下卷绕，然后在卷取后立即在水中骤冷，然后在还原气氛中退火，然后在硝酸/盐酸溶液中酸洗。

9. 发明授权

US5709836A Chromium steel sheets having an excellent press formability 失效
标题翻译：具有优异压制成形性的铬钢板
公开(公告)号：US5709836A
公开(公告)日：1998-01-20
申请号：US602857
申请日：1996-02-28
申请人： Mitsuyuki Fujisawa , Yasushi Kato , Takumi Ujiro , Susumu Satoh , Koji Yamato
发明人： Mitsuyuki Fujisawa , Yasushi Kato , Takumi Ujiro , Susumu Satoh , Koji Yamato
IPC分类号： C21D8/04 , C22C27/06 , C22C38/00 , C22C38/28 , C22C38/32 , C22C38/26
CPC分类号： C22C27/06 , C22C38/28 , C22C38/32
摘要： A chromium steel sheet having excellent press formability, particularly deep-drawing formability and resistance to secondary work brittleness. The construction is a chromium steel sheet including C: not more than 0.03 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.05 wt %, S: not more than 0.015 wt %, Al: not more than 0.10 wt %, N: not more than 0.02 wt %, Cr: 5-60 wt %, Ti: 4(C+N)-0.5 wt %, Nb: 0.003-0.020 wt %, B: 0.0002-0.005 wt %, and, if necessary, one or more selected from Mo: 0.01-5.0 wt %, Ca: 0.0005-0.01 wt % and Se: 0.0005-0.025 wt %, and the balance being Fe and inevitable impurities.
摘要翻译： PCT No.PCT / JP95 / 01341 Sec。 371日期1996年2月28日 102（e）日期1996年2月28日PCT提交1995年7月5日PCT公布。第WO96 / 01335号公报日期1996年5月18日具有优异的压制成型性，特别是深冲成形性和耐二次加工脆性的铬钢板。该结构是C：不大于0.03重量％，Si：1.0重量％以下，Mn：1.0重量％以下，P：0.05重量％以下S：不大于0.015的铬钢板重量％，Al：0.10重量％以下，N：0.02重量％以下，Cr：5-60重量％，Ti：4（C + N）-0.5重量％，Nb：0.003-0.020重量％ B：0.0002-0.005重量％，如果需要，选自Mo：0.01-5.0重量％，Ca：0.0005-0.01重量％和Se：0.0005-0.025重量％中的一种或多种，余量为Fe和不可避免的杂质。

10. 发明授权

US06458221B1 Ferritic stainless steel plate 有权
标题翻译：铁素体不锈钢板
公开(公告)号：US06458221B1
公开(公告)日：2002-10-01
申请号：US09700779
申请日：2000-11-20
申请人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
发明人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
IPC分类号： C22C3818
CPC分类号： C22C38/46 , C21D8/0405 , C21D8/0436 , C21D8/0463 , C21D8/0473 , C22C38/001 , C22C38/002 , C22C38/48
摘要： The present invention provides a ferritic stainless steel sheet having excellent formability and excellent surface quality after forming. In specific means, the steel sheet contains, by mass %, 0.02 to 0.06% of C, 1.0% or less of Si, 1.0% or less of Mn, 0.05% or less of P, 0.01% or less of S, 0.005% or less of Al, 0.005% or less of Ti, 11 to 30% of Cr, 0.7% or less of Ni, the balance composed of Fe, and inevitable impurities, wherein N is contained to satisfy the relation to the C content represented by 0.06≦(C+N)≦0.12, and 1≦N/C, and V is contained to satisfy the relation to the N content represented by 1.5×10−3≦(V×N)≦1.5×10−2 (wherein C, N and V: the contents (mass %) of the elements).
摘要翻译：本发明提供一种成形性优异且成形后表面质量优异的铁素体系不锈钢板。具体地说，钢板以质量％计含有C：0.02〜0.06％，Si：1.0％以下，Mn：1.0％以下，P：0.05％以下，S：0.01％以下，S：0.005％或更少的Al，0.005％以下的Ti，11〜30％的Cr，0.7％以下的Ni，余量由Fe和不可避免的杂质组成，其中N包含以满足与C 0.06 <=（C + N）<= 0.12，1 <= N / C，并且包含V以满足与1.5×10 -3 <=（VxN）<= 1.5×10 -2 其中C，N和V：元素的含量（质量％））。

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