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1. 发明授权

US06299710B1 Method of producing a bainite steel product 失效
标题翻译：生产贝氏体钢产品的方法
公开(公告)号：US06299710B1
公开(公告)日：2001-10-09
申请号：US09272572
申请日：1999-03-19
申请人： Noritsugu Itakura , Mitsuhiro Okatsu , Fumimaru Kawabata , Keniti Amano
发明人： Noritsugu Itakura , Mitsuhiro Okatsu , Fumimaru Kawabata , Keniti Amano
IPC分类号： C21D800
CPC分类号： C21D8/0226 , C21D8/0263 , C21D2211/002 , C22C38/04 , C22C38/12
摘要： A high-strength and high-toughness steel product having at least about 0.001% and less than about 0.030% by weight C, not more than about 0.60% by weight Si, from about 0.8% to 3.0% by weight Mn, from about 0.005 to 0.20% by weight Nb, from about 0.0003 to 0.0050% by weight B, and not more than about 0.005% by weight AL wherein at least 90% of the product has a bainite structure. A method of making this steel product is subject to less stringent production controls because of the nature of the composition.
摘要翻译：具有至少约0.001％且小于约0.030％（重量）C，不超过约0.60％（重量）Si，约0.8％至3.0％（重量）的Mn，约0.005 至0.20重量％的Nb，约0.0003至0.0050重量％的B和不超过约0.005重量％的AL，其中至少90％的产物具有贝氏体组织。由于组合物的性质，制造该钢产品的方法受到较不严格的生产控制。

2. 发明授权

US06521057B1 High-strength high-toughness steel products 失效
标题翻译：高强度高韧性钢制品
公开(公告)号：US06521057B1
公开(公告)日：2003-02-18
申请号：US09929057
申请日：2001-08-15
申请人： Noritsugu Itakura , Mitsuhiro Okatsu , Fumimaru Kawabata , Keniti Amano
发明人： Noritsugu Itakura , Mitsuhiro Okatsu , Fumimaru Kawabata , Keniti Amano
IPC分类号： C22C3812
CPC分类号： C21D8/0226 , C21D8/0263 , C21D2211/002 , C22C38/04 , C22C38/12
摘要： A high-strength and high-toughness steel product having at least about 0.001% and less than about 0.030% by weight C, not more than about 0.60% by weight Si, from about 0.8 to 3.0% by weight Mn, from about 0.005 to 0.20% by weight Nb, from about 0.0003 to 0.0050% by weight B, and not more than about 0.005% by weight Al, wherein at least 90% of the product has a bainite structure. A method of making this steel product is subject to less stringent production controls because of the nature of the composition.
摘要翻译：一种高强度和高韧性的钢产品，其具有至少约0.001％且小于约0.030％（重量）的C，不超过约0.60％（重量）的Si，约0.8至3.0％（重量）的Mn，约0.005至 0.20重量％的Nb，约0.0003〜0.0050重量％的B，不超过约0.005重量％的Al，其中至少90％的产物具有贝氏体结构。由于组合物的性质，制造该钢产品的方法受到较不严格的生产控制。

3. 发明授权

US5900076A Bainitic steel materials having a less scattering of properties and method of producing the same 失效
标题翻译：具有较少散射性质的贝氏体钢材料及其制造方法
公开(公告)号：US5900076A
公开(公告)日：1999-05-04
申请号：US979625
申请日：1997-11-28
申请人： Tohru Hayashi , Keniti Amano , Mitsuhiro Okatsu , Kenji Oi , Fumimaru Kawabata , Tomoya Koseki , Noritsugu Itakura , Hiroki Ota
发明人： Tohru Hayashi , Keniti Amano , Mitsuhiro Okatsu , Kenji Oi , Fumimaru Kawabata , Tomoya Koseki , Noritsugu Itakura , Hiroki Ota
IPC分类号： C21D6/02 , C21D8/02 , C22C38/04 , C22C38/12 , C21D8/00
CPC分类号： C21D6/02 , C21D8/02 , C21D8/0226 , C22C38/04 , C22C38/12 , C21D2211/002 , C21D8/0263
摘要： This invention provides bainite steel materials having a less scattering of properties in a thickness direction or between steel materials by using a chemical composition of C: not less than 0.001 wt % but less than 0.030 wt %, Si: not more than 0.60 wt %, Mn: 1.00-3.00 wt %, Nb: 0.005-0.20 wt %, B: 0.0003-0.0050 wt % and Al: not more than 0.100 wt % and rendering not less than 90% of the material into a bainite texture in steel materials such as thick steel plates, steel sheets, section steels, rod steels and the like.
摘要翻译：本发明提供一种贝氏体钢材料，其厚度方向上或钢材之间的性能散射小，通过使用化学组成为C：不小于0.001重量％但小于0.030重量％，Si：不大于0.60重量％ Mn：1.00-3.00重量％，Nb：0.005-0.20重量％，B：0.0003-0.0050重量％，Al：不大于0.100重量％，并且使不少于90重量％的材料成为贝氏体组织，作为厚钢板，钢板，截面钢，棒钢等。

4. 发明授权

US5766381A Method of producing bainitic steel materials having a less scattering of properties 失效
标题翻译：生产具有较少散射性质的贝氏体钢材料的方法
公开(公告)号：US5766381A
公开(公告)日：1998-06-16
申请号：US646373
申请日：1996-05-15
申请人： Tohru Hayashi , Keniti Amano , Mitsuhiro Okatsu , Kenji Oi , Fumimaru Kawabata , Tomoya Koseki , Noritsugu Itakura , Hiroki Ota
发明人： Tohru Hayashi , Keniti Amano , Mitsuhiro Okatsu , Kenji Oi , Fumimaru Kawabata , Tomoya Koseki , Noritsugu Itakura , Hiroki Ota
IPC分类号： C21D6/02 , C21D8/02 , C22C38/04 , C22C38/12 , C21D8/00
CPC分类号： C21D6/02 , C21D8/02 , C21D8/0226 , C22C38/04 , C22C38/12 , C21D2211/002 , C21D8/0263
摘要： This invention provides bainite steel materials having a less scattering of properties in a thickness direction or between steel materials by using a chemical composition of C: not less than 0.001 wt % but less than 0.030 wt %, Si: not more than 0.60 wt %, Mn: 1.00-3.00 wt %, Nb: 0.005-0.20 wt %, B: 0.0003-0.0050 wt % and Al: not more than 0.100 wt % and rendering not less than 90% of the material into a bainite texture in steel materials such as thick steel plates, steel sheets, section steels, rod steels and the like.
摘要翻译： PCT No.PCT / JP95 / 01871 Sec。 371日期：1996年5月15日 102（e）日期1996年5月15日PCT提交1995年9月20日PCT公布。出版物WO96 / 09419 日本特开1996年3月28日本发明提供了通过使用C：不小于0.001重量％但小于0.030重量％的化学组成，在厚度方向或钢材之间具有较小散射特性的贝氏体钢材料，Si：不更多比例为0.60重量％，Mn：1.00-3.00重量％，Nb：0.005-0.20重量％，B：0.0003-0.0050重量％，Al：不大于0.100重量％，并使不少于90重量％的贝氏体材料粗钢板，钢板，截面钢，棒钢等钢材的质地。

5. 发明授权

US06540848B2 High strength, high toughness, seamless steel pipe for line pipe 有权
公开(公告)号：US06540848B2
公开(公告)日：2003-04-01
申请号：US09914503
申请日：2001-08-29
申请人： Yukio Miyata , Mitsuo Kimura , Takaaki Toyooka , Noritsugu Itakura
发明人： Yukio Miyata , Mitsuo Kimura , Takaaki Toyooka , Noritsugu Itakura
IPC分类号： C22C3812
CPC分类号： C22C38/04 , C21D1/18 , C21D8/10 , C22C38/08 , C22C38/12 , C22C38/14 , F16L9/02
摘要： A high-strength, high-toughness seamless steel pipe used for a line pipe contains 0.03 to 0.06% of C, 0.05 to 0.15% of Si, 1.6 to 2.0% of Mn, 0.010 to 0.10% of Al, 0.3 to 0.7% of Ni, 0.10 to 0.40% of Mo, 0.01 to 0.06% of V, 0.003 to 0.03% of Nb, 0.003 to 0.020% of Ti, and 0.0010 to 0.0100% of N, the relationships Mo+5V≧0.4% and 2Nb−V≦0% being satisfied, and the balance being Fe and incidental impurities. Consequently, it is possible to provide the high-strength, high-toughness seamless steel pipe used for a line pipe in which grade X80 strength and toughness are stably ensured, and the target strength can be easily attained regardless of the size.

6. 发明申请

US20150114073A1 TUBE EXPANDING METHOD FOR MANUFACTURING METAL TUBE 有权
标题翻译：用于制造金属管的管扩张方法
公开(公告)号：US20150114073A1
公开(公告)日：2015-04-30
申请号：US14404241
申请日：2012-05-29
申请人： Tatsuro Katsumura , Noritsugu Itakura , Seiichiro Nambu , Kazutoshi Ishikawa
发明人： Tatsuro Katsumura , Noritsugu Itakura , Seiichiro Nambu , Kazutoshi Ishikawa
IPC分类号： G06F17/50 , B21D39/20
CPC分类号： B21D39/20 , B21C1/24 , B21C3/16 , B21D41/026 , G06F17/5018
摘要： Through a tube expanding processing simulation, a workpiece shape in a state where a tip of a workpiece 10 has advanced by 1.0 m or more after passing through a shoulder portion 3 of a tool 1 is evaluated. A hollow piece shape and a tool shape such that the external diameter is within ±1% of the target, the thickness is within ±7.5% of the target, and the internal gap between the hollow piece and the tool is 1.0 mm or less are obtained by repeated calculation, and thereby actual tube expanding manufacturing conditions are determined.
摘要翻译：通过管扩径处理模拟，评估在通过工具1的肩部3之后工件10的前端前进1.0m以上的状态下的工件形状。中空件形状和工具形状使得外径在目标的±1％内，厚度在目标的±7.5％以内，中空件与工具之间的内部间隙为1.0mm以下通过重复计算获得，从而确定实际的管膨胀制造条件。

7. 发明申请

US20090017238A1 Martensitic stainless steel pipe 有权
标题翻译：马氏体不锈钢管
公开(公告)号：US20090017238A1
公开(公告)日：2009-01-15
申请号：US10587807
申请日：2004-12-01
申请人： Yukio Miyata , Mitsuo Kimura , Noritsugu Itakura , Katsumi Masamura
发明人： Yukio Miyata , Mitsuo Kimura , Noritsugu Itakura , Katsumi Masamura
IPC分类号： B32B1/08 , C22C38/18 , C22C38/40 , C22C38/58 , C22C38/60 , C22C38/52 , C22C38/42 , C22C38/44
CPC分类号： C22C38/44 , C21D1/25 , C21D6/004 , C21D9/14 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/46 , C22C38/48 , C22C38/50 , Y10T428/13
摘要： A martensitic stainless steel pipe having a heat-affected zone with high resistance to intergranular stress corrosion cracking is provided. In particular, the martensitic stainless steel pipe contains less than 0.0100% of C; less than 0.0100% of N; 10% to 14% of Cr; and 3% to 8% of Ni on a mass basis. Alternatively, the martensitic stainless steel pipe may further contain Si, Mn, P, S, and Al within an appropriate content range. The martensitic stainless steel pipe may further contain one or more selected from the group consisting of 4% or less of Cu, 4% or less of Co, 4% or less of Mo, and 4% or less of W and one or more selected from the group consisting of 0.15% or less of Ti, 0.10% or less of Nb, 0.10% or less of V, 0.10% or less of Zr, 0.20% or less of Hf, and 0.20% or less of Ta on a mass basis. The content Csol defined by the following equation is equal to less than 0.0050%: Csol=C−⅓×Cpre, wherein Cpre=12.0{Ti/47.9+½(Nb/92.9+Zr/91.2)+⅓(V/50.9+Hf/178.5+Ta/180.9)−N/14.0} or Cpre=0 when Cpre
摘要翻译：提供具有耐晶间应力腐蚀开裂性高的热影响区的马氏体不锈钢管。特别地，马氏体不锈钢管含有小于0.0100％的C; 小于0.0100％的N; 10％〜14％的Cr; 和3％〜8％的Ni。或者，马氏体不锈钢管可以在适当的含量范围内进一步含有Si，Mn，P，S和Al。马氏体系不锈钢管可以进一步含有选自Cu，4％以下的Co，4％以下的Mo，4％以下的W和1种以上的选自Cu，4％以下的1种以上由Ti的0.15％以下，Nb：0.10％以下，V：0.10％以下，Zr：0.10％以下，Hf：0.20％以下，Ta：0.20％以下基础。 C sol = C-1 / 3xCpre，其中Cpre = 12.0 {Ti / 47.9 +½（Nb / 92.9 + Zr / 91.2）+1/3（V / 50.9 + Hf / 178.5 + Ta / 180.9）-N / 14.0}或Cpre = 0。

8. 发明授权

US09707614B2 Tube expanding method for manufacturing metal tube 有权
公开(公告)号：US09707614B2
公开(公告)日：2017-07-18
申请号：US14404241
申请日：2012-05-29
申请人： Tatsuro Katsumura , Noritsugu Itakura , Seiichiro Nambu , Kazutoshi Ishikawa
发明人： Tatsuro Katsumura , Noritsugu Itakura , Seiichiro Nambu , Kazutoshi Ishikawa
IPC分类号： B21D39/20 , B21D41/02 , G06F17/50 , B21C1/24 , B21C3/16
CPC分类号： B21D39/20 , B21C1/24 , B21C3/16 , B21D41/026 , G06F17/5018
摘要： Through a tube expanding processing simulation, a workpiece shape in a state where a tip of a workpiece 10 has advanced by 1.0 m or more after passing through a shoulder portion 3 of a tool 1 is evaluated. A hollow piece shape and a tool shape such that the external diameter is within ±1% of the target, the thickness is within ±7.5% of the target, and the internal gap between the hollow piece and the tool is 1.0 mm or less are obtained by repeated calculation, and thereby actual tube expanding manufacturing conditions are determined.

9. 发明授权

US08168008B2 Martensitic stainless steel pipe 有权
标题翻译：马氏体不锈钢管
公开(公告)号：US08168008B2
公开(公告)日：2012-05-01
申请号：US10587807
申请日：2004-12-01
申请人： Yukio Miyata , Mitsuo Kimura , Noritsugu Itakura , Katsumi Masamura
发明人： Yukio Miyata , Mitsuo Kimura , Noritsugu Itakura , Katsumi Masamura
IPC分类号： C22C38/40
CPC分类号： C22C38/44 , C21D1/25 , C21D6/004 , C21D9/14 , C22C38/002 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/40 , C22C38/46 , C22C38/48 , C22C38/50 , Y10T428/13
摘要： A martensitic stainless steel pipe having a heat-affected zone with high resistance to intergranular stress corrosion cracking is provided. In particular, the martensitic stainless steel pipe contains less than 0.0100% of C; less than 0.0100% of N; 10% to 14% of Cr; and 3% to 8% of Ni on a mass basis. Alternatively, the martensitic stainless steel pipe may further contain Si, Mn, P, S, and Al within an appropriate content range. The martensitic stainless steel pipe may further contain one or more selected from the group consisting of 4% or less of Cu, 4% or less of Co, 4% or less of Mo, and 4% or less of W and one or more selected from the group consisting of 0.15% or less of Ti, 0.10% or less of Nb, 0.10% or less of V, 0.10% or less of Zr, 0.20% or less of Hf, and 0.20% or less of Ta on a mass basis. The content Csol defined by the following equation is equal to less than 0.0050%: Csol=C−⅓×Cpre, wherein Cpre=12.0 {Ti/47.9+½(Nb/92.9+Zr/91.2)+⅓(V/50.9+Hf/178.5+Ta/180.9)−N/14.0} or Cpre=0 when Cpre
摘要翻译：提供具有耐晶间应力腐蚀开裂性高的热影响区的马氏体不锈钢管。特别地，马氏体不锈钢管含有小于0.0100％的C; 小于0.0100％的N; 10％〜14％的Cr; 和3％〜8％的Ni。或者，马氏体不锈钢管可以在适当的含量范围内进一步含有Si，Mn，P，S和Al。马氏体系不锈钢管可以进一步含有选自Cu，4％以下的Co，4％以下的Mo，4％以下的W和1种以上的选自Cu，4％以下的1种以上由Ti的0.15％以下，Nb：0.10％以下，V：0.10％以下，Zr：0.10％以下，Hf：0.20％以下，Ta：0.20％以下基础。 Csol = C-1/3×Cpre，其中Cpre = 12.0 {Ti / 47.9 + 1 /（Nb / 92.9 + Zr / 91.2）+ 1/3（V / 50.9 + 当Cpre <0时，Hf / 178.5 + Ta / 180.9）-N / 14.0}或Cpre = 0。

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