-
1.发明授权公开(公告)号：US09062356B2
公开(公告)日：2015-06-23
申请号：US12449941
申请日：2008-03-04
申请人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
发明人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
CPC分类号： C21D9/46 , C21D6/005 , C21D8/0226 , C21D8/0273 , C21D9/08 , C21D2211/001 , C21D2211/002 , C21D2211/004
摘要： The present invention provides hot rolled steel plate for spiral pipe superior in low temperature toughness, thick in gauge, for example, having a plate thickness of 14 mm or more, and having a high strength of the API-X65 standard or more spiral pipe and a method of production of the same, that is, steel plate containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P≦0.03%, S≦0.005%, O≦0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, Ti: 0.005 to 0.02%, N−14/48×Ti>0%, Nb−93/14×(N−14/48×Ti>0.005%, Mo: 0.01% to less than 0.1%, Cr: 0.01 to 0.3%, and Cu: 0.01 to 0.3%, and having a balance of Fe and unavoidable impurities, characterized in that an elongation rate of a microstructure unit in a cross-section in the pipe circumferential direction after pipemaking is 2 or less.
摘要翻译： 本发明提供了具有优异的低温韧性，厚度厚的螺旋管用热轧钢板，例如板厚为14mm以上，API-X65标准以上螺旋管强度高， 其制造方法是以质量％计含有C：0.01〜0.1％，Si：0.05〜0.5％，Mn：1〜2％，P＆lt; L，0.03％，S＆NlE; 0.005％ O：0.003％，Al：0.005〜0.05％，N：0.0015〜0.006％，Nb：0.005〜0.08％，Ti：0.005〜0.02％，N-14/48×Ti> 0％，Nb-93/14× （N-14/48×Ti> 0.005％，Mo：0.01％以上且小于0.1％，Cr：0.01〜0.3％，Cu：0.01〜0.3％，余量为Fe和不可避免的杂质， 管道造管后的管周向横截面的微结构单元的伸长率为2以下。
-
公开(公告)号：US20130092295A1
公开(公告)日：2013-04-18
申请号：US13807042
申请日：2011-06-30
申请人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida , Yasuhiro Miyatani , Shinichi Araki , Osamu Kawano
发明人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida , Yasuhiro Miyatani , Shinichi Araki , Osamu Kawano
IPC分类号： C21D8/00 , C22C38/54 , C22C38/42 , C22C38/48 , C22C38/46 , C22C38/44 , C22C38/58 , C22C38/50
CPC分类号： C21D8/005 , C21D8/02 , C21D8/0226 , C21D8/0263 , C21D8/10 , C21D9/08 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58
摘要： A hot-rolled steel sheet according to the present invention is a steel sheet containing a predetermined components, and satisfying O
摘要翻译： 根据本发明的热轧钢板是含有规定成分，满足O
=“0”（零）％的钢板。 它是一种用于螺旋管的高强度热轧钢板，其中先共析铁素体部分为3％以上且20％以下，低温韧性优异，低温韧性为低温韧性 在从钢板表面开始的厚度为薄板的厚度的微细结构中，整体微观结构的数均晶粒尺寸为2.5μm以下，面积平均粒径为9μm以下， 面积平均粒径的标准偏差为2.3μm以下，{211}方向和{111}方向上相对于平行于平面的平面的反射X射线强度比{211} / {111} 从钢板表面的板厚的半厚度的厚度的钢板表面为1.1以上。 该钢板具有API5L-X80标准以上的高韧性和强度。-
3.发明申请公开(公告)号：US20100059149A1
公开(公告)日：2010-03-11
申请号：US12449941
申请日：2008-03-04
申请人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
发明人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
IPC分类号： C21D8/02 , C22C38/20 , C22C38/22 , C22C38/00 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C22C38/02 , C22C38/06
CPC分类号： C21D9/46 , C21D6/005 , C21D8/0226 , C21D8/0273 , C21D9/08 , C21D2211/001 , C21D2211/002 , C21D2211/004
摘要： The present invention provides hot rolled steel plate for spiral pipe superior in low temperature toughness, thick in gauge, for example, having a plate thickness of 14 mm or more, and having a high strength of the API-X65 standard or more spiral pipe and a method of production of the same, that is, steel plate containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P≦0.03%, S≦0.005%, O≦0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, Ti: 0.005 to 0.02%, N−14/48×Ti>0%, Nb−93/14×(N−14/48×Ti>0.005%, Mo: 0.01% to less than 0.1%, Cr: 0.01 to 0.3%, and Cu: 0.01 to 0.3%, and having a balance of Fe and unavoidable impurities, characterized in that an elongation rate of a microstructure unit in a cross-section in the pipe circumferential direction after pipemaking is 2 or less.
摘要翻译： 本发明提供了具有优异的低温韧性，厚度厚的螺旋管用热轧钢板，例如板厚为14mm以上，API-X65标准以上螺旋管强度高， 其制造方法是以质量％计含有C：0.01〜0.1％，Si：0.05〜0.5％，Mn：1〜2％，P＆lt; L，0.03％，S＆NlE; 0.005％ O：0.003％，Al：0.005〜0.05％，N：0.0015〜0.006％，Nb：0.005〜0.08％，Ti：0.005〜0.02％，N-14/48×Ti> 0％，Nb-93/14× （N-14/48×Ti> 0.005％，Mo：0.01％以上且小于0.1％，Cr：0.01〜0.3％，Cu：0.01〜0.3％，余量为Fe和不可避免的杂质， 管道造管后的管周向横截面的微结构单元的伸长率为2以下。
-
4.发明授权公开(公告)号：US08562762B2
公开(公告)日：2013-10-22
申请号：US12449815
申请日：2008-02-29
申请人： Tatsuo Yokoi , Masanori Minagawa , Takuya Hara , Osamu Yoshida , Hiroshi Abe
发明人： Tatsuo Yokoi , Masanori Minagawa , Takuya Hara , Osamu Yoshida , Hiroshi Abe
CPC分类号： C22C38/02 , B21B1/22 , C21D8/021 , C21D8/0226 , C21D2201/05 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： The present invention provides high strength hot rolled steel plate for line-pipes superior in low temperature toughness, and a method of production of the same, containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P: ≦0.03%, S: ≦0.005%, O: ≦0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, and Ti: 0.005 to 0.02%, where N−14/48×Ti>0% and Nb−93/14×(N−14/48×Ti)>0.005%, and a balance of Fe and unavoidable impurities, said steel plate characterized in that its microstructure is a continuously cooled transformed structure, a reflected X-ray intensity ratio {211}/{111} of the {211} plane and {111} plane parallel to the plate surface in the texture at the center of plate thickness is 1.1 or more, and an in-grain precipitate density of the precipitates of Nb and/or Ti carbonitrides is 1017 to 1018/cm3.
摘要翻译： 本发明提供了具有优异的低温韧性的线管的高强度热轧钢板及其制造方法，以质量％计含有C：0.01〜0.1％，Si：0.05〜0.5％，Mn ：1〜2％，P：0.03％，S：0.005％，O：0.003％，Al：0.005〜0.05％，N：0.0015〜0.006％，Nb：0.005〜0.08％，Ti：0.005〜 0.02％，其中N-14/48×Ti> 0％和Nb-93/14×（N-14/48×Ti）> 0.005％，余量为Fe和不可避免的杂质，其特征在于： 微结构是连续冷却的变换结构，在板厚中心处的织构中平行于板表面的{211}面和{111}面的反射X射线强度比{211} / {111}为1.1或 Nb和/或Ti碳氮化物的析出物的颗粒内析出密度为1017〜1018 / cm3。
-
5.发明申请公开(公告)号：US20100084054A1
公开(公告)日：2010-04-08
申请号：US12449815
申请日：2008-02-29
申请人： Tatsuo Yokoi , Masanori Minagawa , Takuya Hara , Osamu Yoshida , Hiroshi Abe
发明人： Tatsuo Yokoi , Masanori Minagawa , Takuya Hara , Osamu Yoshida , Hiroshi Abe
IPC分类号： C21D11/00 , C21D8/00 , C22C38/00 , C22C38/08 , C22C38/02 , C22C38/18 , C22C38/06 , C22C38/38 , C22C38/04
CPC分类号： C22C38/02 , B21B1/22 , C21D8/021 , C21D8/0226 , C21D2201/05 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14
摘要： The present invention provides high strength hot rolled steel plate for line-pipes superior in low temperature toughness, and a method of production of the same, containing, by mass %, C: 0.01 to 0.1%, Si: 0.05 to 0.5%, Mn: 1 to 2%, P: ≦0.03%, S: ≦0.005%, O: ≦0.003%, Al: 0.005 to 0.05%, N: 0.0015 to 0.006%, Nb: 0.005 to 0.08%, and Ti: 0.005 to 0.02%, where N−14/48×Ti>0% and Nb—93/14×(N−14/48×Ti)>0.005%, and a balance of Fe and unavoidable impurities, said steel plate characterized in that its microstructure is a continuously cooled transformed structure, a reflected X-ray intensity ratio {211}/{111} of the {211} plane and {111} plane parallel to the plate surface in the texture at the center of plate thickness is 1.1 or more, and an in-grain precipitate density of the precipitates of Nb and/or Ti carbonitrides is 1017 to 1018/cm3.
摘要翻译： 本发明提供了具有优异的低温韧性的线管的高强度热轧钢板及其制造方法，以质量％计含有C：0.01〜0.1％，Si：0.05〜0.5％，Mn ：1〜2％，P：NlE 0.03％S：＆lt; NlE 0.005％O：＆lt; nlE 0.003％Al：0.005〜0.05％N：0.0015〜0.006％Nb：0.005〜0.08％ ：0.005〜0.02％，其中N-14/48×Ti> 0％，Nb-93/14×（N-14/48×Ti）> 0.005％，余量为Fe和不可避免的杂质， 由于其微结构是连续冷却的变换结构，所以在板厚中心处的纹理中平行于板表面的{211}面和{111}面的反射X射线强度比{211} / {111} 为1.1以上，Nb和/或Ti碳氮化物的析出物的颗粒内析出密度为1017〜1018 / cm3。
-
公开(公告)号：US09200342B2
公开(公告)日：2015-12-01
申请号：US13807042
申请日：2011-06-30
申请人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida , Yasuhiro Miyatani , Shinichi Araki , Osamu Kawano
发明人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida , Yasuhiro Miyatani , Shinichi Araki , Osamu Kawano
IPC分类号： C21D8/00 , C21D8/02 , C21D9/08 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58 , C21D8/10 , C21D9/46 , C22C38/06
CPC分类号： C21D8/005 , C21D8/02 , C21D8/0226 , C21D8/0263 , C21D8/10 , C21D9/08 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54 , C22C38/58
摘要： A hot-rolled steel sheet according to the present invention is a steel sheet containing a predetermined components, and satisfying O
摘要翻译： 根据本发明的热轧钢板是含有规定成分，满足O
-
7.发明申请HIGH STRENGTH HOT ROLLED STEEL SHEET FOR LINE PIPE USE EXCELLENT IN LOW TEMPERATURE TOUGHNESS AND DUCTILE FRACTURE ARREST PERFORMANCE AND METHOD OF PRODUCTION OF SAME 审中-公开用于线管的高强度热轧钢板在低温韧性和撕裂性能方面的应用性能及其生产方法公开(公告)号：US20110079328A1
公开(公告)日：2011-04-07
申请号：US12736903
申请日：2009-05-25
申请人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
发明人： Tatsuo Yokoi , Hiroshi Abe , Osamu Yoshida
CPC分类号： C21D8/0263 , C21C7/0006 , C21C7/06 , C21D1/18 , C21D1/19 , C21D7/04 , C21D7/06 , C21D8/021 , C21D8/0226 , C21D9/08 , C21D9/085 , C21D9/46 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/06 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58
摘要： The present invention has as its object the provision of hot rolled steel sheet (hot coil) for line pipe use in which API5L-X80 standard or better high strength and low temperature toughness and ductile fracture arrest performance are achieved and a method of production of the same.For this purpose, the hot rolled steel sheet of the present invention comprises C, Si, Mn, Al, N, Nb, Ti, Ca, V, Mo, Cr, Cu, and Ni in predetermined ranges and a balance of Fe and unavoidable impurities, in which the microstructure is a continuously cooled transformed structure, in which continuously cooled transformed structure, precipitates containing Nb have an average size of 1 to 3 nm and are included dispersed at an average density of 3 to 30×1022/m3, granular bainitic ferrite and/or quasi-polygonal ferrite are included in 50% or more in terms of fraction, furthermore, precipitates containing Ti nitrides are included, and they have an average circle equivalent diameter of 0.1 to 3 μm and include complex oxides including Ca, Ti, and Al in 50% or more in terms of number.
摘要翻译： 本发明的目的在于提供一种用于管道使用的热轧钢板（热线圈），其中API5L-X80标准或更好的高强度和低温韧性和延性断裂停止性能得以实现，以及生产方法 相同。 为此，本发明的热轧钢板包含预定范围内的C，Si，Mn，Al，N，Nb，Ti，Ca，V，Mo，Cr，Cu和Ni，余量为Fe和不可避免的 其中微结构是连续冷却的转变结构的杂质，其中连续冷却的转变结构，含有Nb的沉淀物具有1至3nm的平均尺寸，并且包括以3至30×1022 / m3的平均密度分散，颗粒状 贝氏体铁素体和/或准多边形铁素体以分数计含于50％以上，此外，含有Ti氮化物的析出物，平均圆当量直径为0.1〜3μm，包括复合氧化物，包括Ca， Ti和Al在数量上为50％以上。
-
8.发明授权Hot-rolled steel sheet for gas nitrocarburizing and manufacturing method thereof 有权用于气体氮碳共渗的热轧钢板及其制造方法公开(公告)号：US09453269B2
公开(公告)日：2016-09-27
申请号：US14110551
申请日：2012-04-13
申请人： Tatsuo Yokoi , Hiroshi Shuto , Riki Okamoto , Nobuhiro Fujita , Kazuaki Nakano , Takeshi Yamamoto
发明人： Tatsuo Yokoi , Hiroshi Shuto , Riki Okamoto , Nobuhiro Fujita , Kazuaki Nakano , Takeshi Yamamoto
IPC分类号： C21D8/02 , C22C38/06 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/14 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/36
CPC分类号： C21D9/46 , C21D8/0226 , C21D8/0263 , C21D2211/005 , C21D2211/009 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/105 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/36 , C22C38/38
摘要： In a hot-rolled steel sheet, an average pole density of an orientation group of {100} to {223} , which is represented by an arithmetic average of pole density of each orientation of {100} , {116} , {114} , {112} , and {223} in a center portion of a sheet thickness which is a range of the sheet thickness of ⅝ to ⅜ from a surface of the steel sheet, is 1.0 or more and 4.0 or less, the pole density of a crystal orientation of {332} is 1.0 or more and 4.8 or less, an average grain size in a center in the sheet thickness is 10 μm or less, and a microstructure includes, by a structural fraction, pearlite more than 6% and ferrite in the balance.
摘要翻译： 在热轧钢板中，{100} <011>〜{223} <110>的取向基团的平均极密度由{100} <011的各取向的极点密度的算术平均值 在板厚度的中心部分中的厚度为⅝至⅜的范围的，>，{116} <110>，{114} <110>，{112} <110>和{223} 钢板表面的平均粒径为1.0以上且4.0以下，{332} <113>的结晶取向的极点密度为1.0以上且4.8以下，片材的中央部的平均粒径 厚度为10μm以下，通过结构部分，微观结构包括大于6％的珠光体和余量的铁素体。
-
公开(公告)号：US20140014237A1
公开(公告)日：2014-01-16
申请号：US14008205
申请日：2012-04-13
申请人： Tatsuo Yokoi , Hiroshi Shuto , Riki Okamoto , Nobuhiro Fujita , Kazuaki Nakano , Takeshi Yamamoto
发明人： Tatsuo Yokoi , Hiroshi Shuto , Riki Okamoto , Nobuhiro Fujita , Kazuaki Nakano , Takeshi Yamamoto
IPC分类号： C21D8/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/28 , C22C38/16 , C22C38/08 , C22C38/12 , C22C38/38 , C22C38/34 , C22C38/02 , C22C38/00
CPC分类号： C22C38/34 , C21D8/0226 , C21D8/0263 , C21D2211/003 , C21D2211/004 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/28 , C22C38/38
摘要： In a hot-rolled steel sheet, an average pole density of an orientation group {100} to {223} , which is represented by an arithmetic mean of pole densities of orientations {100} , {116} , {114} , {112} , and {223} is 1.0 to 4.0 and a pole density of a crystal orientation {332} is 1.0 to 4.8, in a thickness center portion which is a thickness range of ⅝ to ⅜ from the surface of the steel sheet; an average grain size in the thickness center portion is less than or equal to 10 μm and a grain size of cementite precipitating in a grain boundary of the steel sheet is less than or equal to 2 μm; and an average grain size of precipitates containing TiC in grains is less than or equal to 3 nm and a number density per unit volume is greater than or equal to 1×1016 grains/cm3.
摘要翻译： 在热轧钢板中，取向组{100} <011>〜{223} <110>的平均极密度由取向{100} <011>的极点密度的算术平均值表示，{ 116} <110>，{114} <110>，{112} <110>和{223} <110>为1.0〜4.0，晶体取向{332} <113>的极点密度为1.0〜4.8， 在从钢板表面的厚度中心部分的厚度范围为5/8〜3/8的范围内; 厚度中心部的平均粒径小于等于10μm，在钢板的晶界析出的渗碳体的粒径小于等于2μm; 晶粒中含有TiC的析出物的平均粒径小于或等于3nm，每单位体积的数密度大于或等于1×1016粒/ cm 3。
-
10.发明申请公开(公告)号：US20070037006A1
公开(公告)日：2007-02-15
申请号：US10573002
申请日：2004-09-22
申请人： Tatsuo Yokoi , Tetsuya Yamada , Osamu Kawano
发明人： Tatsuo Yokoi , Tetsuya Yamada , Osamu Kawano
IPC分类号： C21D8/02
CPC分类号： C22C38/02 , C21D8/0226 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/04 , C22C38/06 , Y10T428/12799 , Y10T428/12951 , Y10T428/12972
摘要： An exemplary hot rolled steel sheet for processing can include, in terms of percent by mass, C of 0.01 to 0.2%; Si of 0.01 to 0.3%; Mn of 0.1 to 1.5%; P of ≦0.1%; S of ≦0.03%; Al of 0.001 to 0.1%; N of ≦0.006%; and as a remainder, Fe and unavoidable impurities. The microstructure may include a main phase in the form of polygonal ferrite and a hard second phase, a volume fraction of the hard second phase is 3 to 20%, a hardness ratio (hardness of the hard second phase/hardness of the polygonal ferrite) is 1.5 to 6, and a grain size ratio (e.g., grain size of the polygonal ferrite/grain size of the hard second phase) is 1.5 or more.
摘要翻译： 用于加工的示例性热轧钢板可以包括以质量百分比计，为0.01至0.2％的C; Si为0.01〜0.3％; Mn为0.1〜1.5％; P <0.1％; S <0.03％; Al为0.001〜0.1％; N <0.006％; 作为余量，Fe和不可避免的杂质。 微结构可以包括多边形铁素体和硬质第二相形式的主相，硬质相的体积分数为3〜20％，硬度比（硬质相的硬度/多边形铁素体的硬度） 为1.5〜6，粒径比（例如，多边形铁素体的晶粒尺寸/硬质相的晶粒尺寸）为1.5以上。
-
-
-
-
-
-
-
-
-
搜索结果
28 条记录 (耗时 0.03 秒)