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1. 发明授权

US09932651B2 Thick-walled high-strength seamless steel pipe with excellent sour resistance for pipe for pipeline, and process for producing same 有权
公开(公告)号：US09932651B2
公开(公告)日：2018-04-03
申请号：US14129810
申请日：2012-06-29
申请人： Yasuhide Ishiguro , Mitsuo Kimura , Kenichiro Eguchi , Hiroshi Yokogawa , Tadao Katagiri , Masahito Tanaka
发明人： Yasuhide Ishiguro , Mitsuo Kimura , Kenichiro Eguchi , Hiroshi Yokogawa , Tadao Katagiri , Masahito Tanaka
IPC分类号： C21D8/08 , C21D9/08 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/38 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58 , F16L9/02 , C21D1/25 , C21D1/63 , C21D8/10
CPC分类号： C21D9/085 , C21D1/25 , C21D1/63 , C21D8/105 , C21D2261/00 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/28 , C22C38/38 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/58 , F16L9/02
摘要： A heavy wall and high strength seamless steel pipe having high sour resistance is provided. In particular, a quenching and tempering treatment is conducted to adjust the yield strength to be higher than 450 MPa and adjust the Vickers hardness HV5 that can be measured at an outermost side or an innermost side of the pipe under a 5 kgf load (test load: 49 N) to be 250 HV5 or less.

2. 发明申请

US20120186704A1 HIGH-STRENGTH SEAMLESS STEEL TUBE, HAVING EXCELLENT RESISTANCE TO SULFIDE STRESS CRACKING, FOR OIL WELLS AND METHOD FOR MANUFACTURING THE SAME 有权
标题翻译：高强度无缝钢管，具有优异的耐硫裂纹应力破坏性，适用于油井及其制造方法
公开(公告)号：US20120186704A1
公开(公告)日：2012-07-26
申请号：US13379723
申请日：2010-06-23
申请人： Kenichiro Eguchi , Yuji Tanaka , Mitsuo Kimura , Yasuhide Ishiguro , Katsumi Yamada , Haruo Nakamichi
发明人： Kenichiro Eguchi , Yuji Tanaka , Mitsuo Kimura , Yasuhide Ishiguro , Katsumi Yamada , Haruo Nakamichi
IPC分类号： C21D8/00 , C21D11/00 , C22C38/44 , C22C38/20 , C22C38/28 , C22C38/26 , C22C38/34 , C22C38/22 , C22C38/24
CPC分类号： C21D9/14 , C21D2211/004 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A seamless steel tube contains 0.15% to 0.50% C, 0.1% to 1.0% Si, 0.3% to 1.0% Mn, 0.015% or less P, 0.005% or less S, 0.01% to 0.1% Al, 0.01% or less N, 0.1% to 1.7% Cr, 0.4% to 1.1% Mo, 0.01% to 0.12% V, 0.01% to 0.08% Nb, and 0.0005% to 0.003% B or further contains 0.03% to 1.0% Cu on a mass basis and has a microstructure which has a composition containing 0.40% or more solute Mo and a tempered martensite phase that is a main phase and which contains prior-austenite grains with a grain size number of 8.5 or more and 0.06% by mass or more of a dispersed M2C-type precipitate with substantially a particulate shape.
摘要翻译：无缝钢管含有0.15％〜0.50％的C，0.1〜1.0％的Si，0.3〜1.0％的Mn，0.015％以下的P，0.005％以下的S，0.01〜0.1％的Al，0.01％以下的N ，0.1〜1.7％的Cr，0.4〜1.1％的Mo，0.01〜0.12％的V，0.01〜0.08％的Nb，0.0005〜0.003％的B，或者进一步含有0.03〜1.0％的Cu，具有含有0.40质量％以上的溶质Mo和作为主相的回火马氏体相的组成的组织，其含有粒径数为8.5以上的以前的奥氏体晶粒和分散的0.06质量％以上的奥氏体具有大致颗粒形状的M2C型沉淀物。

3. 发明授权

US09234254B2 High-strength seamless steel tube, having excellent resistance to sulfide stress cracking, for oil wells and method for manufacturing the same 有权
标题翻译：具有优异的耐硫化应力开裂性能的油压井用高强度无缝钢管及其制造方法
公开(公告)号：US09234254B2
公开(公告)日：2016-01-12
申请号：US13379723
申请日：2010-06-23
申请人： Kenichiro Eguchi , Yuji Tanaka , Mitsuo Kimura , Yasuhide Ishiguro , Katsumi Yamada , Haruo Nakamichi
发明人： Kenichiro Eguchi , Yuji Tanaka , Mitsuo Kimura , Yasuhide Ishiguro , Katsumi Yamada , Haruo Nakamichi
IPC分类号： C22C38/22 , C22C38/20 , C22C38/24 , C22C38/26 , C21D8/10 , C21D9/14 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/32
CPC分类号： C21D9/14 , C21D2211/004 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A seamless steel tube contains 0.15% to 0.50% C, 0.1% to 1.0% Si, 0.3% to 1.0% Mn, 0.015% or less P, 0.005% or less S, 0.01% to 0.1% Al, 0.01% or less N, 0.1% to 1.7% Cr, 0.4% to 1.1% Mo, 0.01% to 0.12% V, 0.01% to 0.08% Nb, and 0.0005% to 0.003% B or further contains 0.03% to 1.0% Cu on a mass basis and has a microstructure which has a composition containing 0.40% or more solute Mo and a tempered martensite phase that is a main phase and which contains prior-austenite grains with a grain size number of 8.5 or more and 0.06% by mass or more of a dispersed M2C-type precipitate with substantially a particulate shape.
摘要翻译：无缝钢管含有0.15％〜0.50％的C，0.1〜1.0％的Si，0.3〜1.0％的Mn，0.015％以下的P，0.005％以下的S，0.01〜0.1％的Al，0.01％以下的N ，0.1〜1.7％的Cr，0.4〜1.1％的Mo，0.01〜0.12％的V，0.01〜0.08％的Nb，0.0005〜0.003％的B，或者进一步含有0.03〜1.0％的Cu，具有含有0.40质量％以上的溶质Mo和作为主相的回火马氏体相的组成的组织，其含有粒径数为8.5以上的以前的奥氏体晶粒和分散的0.06质量％以上的奥氏体具有大致颗粒形状的M2C型沉淀物。

4. 发明申请

US20050173031A1 High strength steel sheet and method for manufacturing same 审中-公开
标题翻译：高强度钢板及其制造方法
公开(公告)号：US20050173031A1
公开(公告)日：2005-08-11
申请号：US11040994
申请日：2005-01-20
申请人： Kohei Hasegawa , Saiji Matsuoka , Yasuhide Ishiguro
发明人： Kohei Hasegawa , Saiji Matsuoka , Yasuhide Ishiguro
IPC分类号： B21B1/26 , B21B1/46 , B21B3/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/04 , C22C38/06 , C22C38/38 , C22C38/60
CPC分类号： C22C38/02 , C21D8/0226 , C21D8/0263 , C21D2211/005 , C21D2211/008 , C22C38/04
摘要： The high strength steel sheet consists essentially of 0.05 to 0.15% C, 0.5% or less Si, 1.00 to 2.00% Mn, 0.09% or less P, 0.01% or less S, 0.005% or less N, 0.01 to 0.1% Sol.Al, and balance of Fe and inevitable impurities; and contains 60% or more polygonal ferrite by volume, and 5 to 30% martensite by volume. The steel sheet is manufactured by the steps of: casting a slab having the specified composition; hot-rolling the slab at Ar3 point or more temperature; beginning cooling the hot-rolled steel sheet within 2 seconds after completing the hot-rolling to a temperature of from 750° C. to 600° C. at a cooling rate of 150° C./s or more; holding the cooled steel sheet at a temperature between 750° C. and 600° C. for 2 to 15 seconds; cooling the steel sheet at a cooling rate of 20° C./s or more; and coiling the cooled steel sheet at a temperature of 400° C. or less.
摘要翻译：高强度钢板基本上由0.05〜0.15％的C，0.5％以下的Si，1.00〜2.00％的Mn，0.09％以下的P，0.01％以下的S，0.005％以下的N，0.01〜0.1％的Sol组成。 Al，余量为Fe和不可避免的杂质; 并且含有60体积％以上的多边形铁素体，体积为5〜30体积％的马氏体。钢板通过以下步骤制造：铸造具有指定组成的板坯; 在Ar3点或更高温度下热轧板坯; 在150℃/ s以上的冷却速度下，在完成热轧后的2秒钟内开始冷却到750℃〜600℃的温度。将冷却的钢板在750℃至600℃的温度下保持2至15秒; 以20℃/ s以上的冷却速度冷却钢板; 并在400℃以下的温度下卷取冷却后的钢板。

5. 发明授权

US07942984B2 Steel pipe with good magnetic properties and method of producing the same 有权
标题翻译：具有良好磁性能的钢管及其制造方法
公开(公告)号：US07942984B2
公开(公告)日：2011-05-17
申请号：US11791503
申请日：2005-09-01
申请人： Yasuhide Ishiguro , Yoshikazu Kawabata , Kei Sakata , Masayuki Sakaguchi , Masayoshi Ishida , Motoaki Itadani , Yasue Koyama
发明人： Yasuhide Ishiguro , Yoshikazu Kawabata , Kei Sakata , Masayuki Sakaguchi , Masayoshi Ishida , Motoaki Itadani , Yasue Koyama
IPC分类号： H01F1/147
CPC分类号： C22C38/02 , C21D8/10 , C21D8/12 , C22C38/04 , C22C38/06 , H01F1/14766
摘要： A steel pipe blank having a composition containing 0.5% or less C and 85% or more Fe in terms of mass percent is heated, and stretch-reducing is then performed so that the diameter decrease ratio is 15% or more and the rolling finishing temperature is (the Ar3 transformation point−10)° C. or lower. Consequently, a structure in which the ratio of X-ray diffraction intensity obtained from the plane in which the direction of crystal grains is preferentially oriented parallel to the circumference direction and the direction of crystal grains is preferentially oriented parallel to the rolling direction of the steel pipe to that obtained for a three-dimensionally randomly oriented sample is 3.0 or more is formed, and the r-value is increased, thereby improving the magnetic properties of the steel pipe.
摘要翻译：将具有以质量百分比计含量为0.5％以下且Fe为85％以上的Fe的组成的钢管坯加热，然后进行拉伸减少，使得直径减小率为15％以上，轧制终轧温度是（Ar3转化点-10）℃或更低。因此，从晶粒的<100>方向优选平行于圆周方向的平面和晶粒的<011>方向获得的X射线衍射强度的比优先取向为平行于钢管的轧制方向与三维随机取向试样的轧制方向成为3.0以上，r值增加，从而提高钢管的磁特性。

6. 发明申请

US20090223607A1 Method for manufacturing a high strength steel sheet 审中-公开
标题翻译：高强度钢板的制造方法
公开(公告)号：US20090223607A1
公开(公告)日：2009-09-10
申请号：US12386518
申请日：2009-04-17
申请人： Kohei Hasegawa , Saiji Matsuoka , Yasuhide Ishiguro
发明人： Kohei Hasegawa , Saiji Matsuoka , Yasuhide Ishiguro
IPC分类号： C21D9/46 , C21D8/02
CPC分类号： C22C38/02 , C21D8/0226 , C21D8/0263 , C21D2211/005 , C21D2211/008 , C22C38/04
摘要： A method of manufacturing a high strength steel sheet. The method including casting a slab consisting essentially of 0.05 to 0.15% C, 0.5% or less Si, 1.00 to 2.00% Mn, 0.09% or less P, 0.01% or less S, 0.005% or less N, 0.01 to 0.1% Sol.Al, and a balance of Fe and inevitable impurities; hot-rolling the slab at a temperature of the Ar3 point or more; beginning cooling the hot-rolled steel sheet within 2 seconds after completing the hot-rolling at a temperature of from 750° C. to 600° C. at a cooling rate of 150° C./s or more; holding the cooled steel sheet at a temperature between 750° C. and 600° C. for 2 to 15 seconds; cooling the steel sheet at a cooling rate of 20° C./s or more; and coiling the cooled steel sheet at a temperature of 400° C. or less.
摘要翻译：高强度钢板的制造方法。该方法包括铸造基本上由以下组成的板坯：C：0.5〜0.15％，Si：0.5％以下，Mn：1.00〜2.00％，P：0.09％以下，0.01％以下，S：0.005％以下，N：0.01〜0.1％ .Al，余量为Fe和不可避免的杂质; 在Ar3点以上的温度下热轧板坯; 在150℃/ s以上的冷却速度下，在750〜600℃的温度下进行热轧后2秒内开始冷却热轧钢板; 将冷却的钢板在750℃至600℃的温度下保持2至15秒; 以20℃/ s以上的冷却速度冷却钢板; 并在400℃以下的温度下卷取冷却后的钢板。

7. 发明授权

US06554925B2 Method for manufacturing cold-rolled steel sheet 有权
标题翻译：冷轧钢板的制造方法
公开(公告)号：US06554925B2
公开(公告)日：2003-04-29
申请号：US09821609
申请日：2001-03-29
申请人： Tadashi Inoue , Yasuhide Ishiguro , Yoichi Motoyashiki , Sadanori Imada , Toru Inazumi
发明人： Tadashi Inoue , Yasuhide Ishiguro , Yoichi Motoyashiki , Sadanori Imada , Toru Inazumi
IPC分类号： C21D804
CPC分类号： C21D8/0426 , C21D1/84 , C21D8/0226 , C21D8/041 , C21D8/0463 , C22C38/004 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16
摘要： The method for manufacturing cold-rolled steel sheet comprises the steps of: rough-rolling a slab using a rough-rolling unit; finish-rolling the sheet bar using a continuous hot finishing-rolling mill; cooling the hot-rolled steel strip on a runout table; coiling thus cooled hot-rolled steel strip; and applying picking, cold-rolling the hot-rolled steel strip, and final annealing to the cold-rolled steel strip.
摘要翻译：制造冷轧钢板的方法包括以下步骤：使用粗轧单元对板坯进行粗轧; 使用连续热精轧机对板材进行精轧; 冷却热轧带钢在跳板上; 卷取如此冷却的热轧钢带; 并对冷轧钢带进行采摘，冷轧，对冷轧钢带进行最终退火。

8. 发明授权

US08608871B2 High-strength steel tube having excellent chemical conversion treatability and excellent formability and method for manufacturing the same 有权
标题翻译：具有优异的化学转化处理性和优异成型性的高强度钢管及其制造方法
公开(公告)号：US08608871B2
公开(公告)日：2013-12-17
申请号：US13123087
申请日：2009-10-07
申请人： Yasuhide Ishiguro , Akio Sato , Yasuhisa Shimizu
发明人： Yasuhide Ishiguro , Akio Sato , Yasuhisa Shimizu
IPC分类号： C21D8/10 , C22C38/02 , C22C38/04 , F16L9/00 , B21C37/06
CPC分类号： B21C37/08 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38
摘要： There is provided a high-strength steel tube having excellent chemical conversion treatability and excellent formability and a method for manufacturing the high-strength steel tube. More specifically, in processing a mother steel sheet containing, on the basis of mass percent, 0.05% or more C, more than 0.7% Si, and 0.8% or more Mn into a pipe shape, the sum total of absolute circumferential surface strains each applied in individual process steps of the processing is 5% or more as nominal strain. A welded steel tube thus manufactured using a steel sheet even containing more than 0.7% Si can have excellent chemical conversion treatability without mechanical grinding or chemical pickling treatment.
摘要翻译：提供了具有优异的化学转化处理性和优异成型性的高强度钢管和制造高强度钢管的方法。更具体地说，在以质量％计含有0.05％以上C，超过0.7％Si，0.8％以上Mn的母钢板加工成管状时，将绝对圆周面应变的总和在加工的各个工艺步骤中应用的标称应变为5％以上。使用甚至含有大于0.7％的Si的钢板制造的焊接钢管可以在没有机械研磨或化学酸洗处理的情况下具有优异的化学转化处理性。

9. 发明授权

US5270020A Apparatus for manufacturing silicon single crystals 失效
标题翻译：硅单晶制造装置
公开(公告)号：US5270020A
公开(公告)日：1993-12-14
申请号：US862337
申请日：1992-04-02
申请人： Makoto Suzuki , Masanori Ohmura , Shuzo Fukuda , Yoshinobu Shima , Takeshi Suzuki , Yasuhide Ishiguro , Iwao Ida
发明人： Makoto Suzuki , Masanori Ohmura , Shuzo Fukuda , Yoshinobu Shima , Takeshi Suzuki , Yasuhide Ishiguro , Iwao Ida
IPC分类号： C30B15/00 , C30B15/02 , C30B15/14 , C30B15/22
CPC分类号： C30B15/14 , Y10S117/90
摘要： A silicon single crystal manufacturing apparatus according to the CZ method which includes a partition member for dividing a quartz crucible into a single crystal growing section and a material melting section and having at least one small hole for permitting the passage of molten silicon, and a heat keeping cover for covering the partition member and the material melting section. The heat keeping cover is made of a sheet of metal selected from the group consisting of Ta, Mo and W and containing Fe 50 ppm or less and Cu 10 ppm or less. The metal sheet includes a surface layer composed of a silicon-enriched layer, and the depth of an area of the silicon-enriched layer in which the content of Si is greater than the contents of Fe and Cu at the same position therein is not less than 10 .mu.m from the surface. The content of Fe in the silicon-enriched layer is not greater than 5 ppm. Thus, this is the apparatus for manufacturing silicon single crystals, being very low in oxidation induced stacking fault (OSF) density.
摘要翻译：根据CZ方法的硅单晶制造装置，其包括用于将石英坩埚分割成单晶生长部分的分隔部件和材料熔化部分，并且具有至少一个用于允许熔融硅通过的小孔，并且热量用于覆盖分隔构件和材料熔化部分的保持盖。保温盖由选自Ta，Mo和W的金属片制成，含有Fe 50ppm以下且Cu为10ppm以下。金属片包括由富硅层构成的表面层，并且其中Si含量大于其中相同位置处的Fe和Cu含量的富硅层的面积的深度不小于距离表面10亩以上。富硅层中的Fe含量不大于5ppm。因此，这是制造硅单晶的装置，其氧化诱导堆垛层错密度（OSF）非常低。

10. 发明申请

US20110247727A1 METHOD FOR PROCESSING MEMBER HAVING EXCELLENT CHEMICAL CONVERSION TREATABILITY 审中-公开
标题翻译：具有优异化学转化可处理性的成员的加工方法
公开(公告)号：US20110247727A1
公开(公告)日：2011-10-13
申请号：US13123076
申请日：2009-10-07
申请人： Yasuhide Ishiguro , Akio Sato , Yasuhisa Shimizu
发明人： Yasuhide Ishiguro , Akio Sato , Yasuhisa Shimizu
IPC分类号： C23C22/78
CPC分类号： C23C22/78 , B21C37/08 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/38
摘要： In a method for processing a high-strength member having a high Si content of more than 0.7% by mass, a high-strength steel material containing, on the basis of mass percent, 0.05% or more C, more than 0.7% Si, and 0.8% or more Mn is subjected to processing controlled such that the sum total of absolute surface strains in a predetermined direction each applied in individual process steps of the processing is 5% or more as nominal strain to form a member having a predetermined shape. The member, even containing more than 0.7% Si, can have markedly improved chemical conversion treatability without mechanical grinding or chemical pickling treatment.
摘要翻译：在Si含量高于0.7质量％的高强度部件的加工方法中，含有以质量％计含有0.05％以上C以上0.7％以上的Si的高强度钢材，和0.8％以上的Mn进行加工处理，使得在加工的各个工艺步骤中分别施加的预定方向上的绝对表面应变的总和为标称应变的5％以上，以形成具有预定形状的构件。即使含有0.7％以上的Si，该成员也可以显着提高化学转化处理性，而无需机械研磨或化学酸洗处理。

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