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1.发明授权公开(公告)号：US08262767B2
公开(公告)日：2012-09-11
申请号：US13103135
申请日：2011-05-09
CPC分类号： C21C7/06 , C21C7/0075 , C21C7/04 , C21C7/064 , C21C7/10 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A method of producing steel for a steel pipe excellent in sour-resistance performance comprises controlling the amount of Ca addition charged into a molten steel in a ladle according to a N content in the molten steel prior to Ca addition. Non-metallic inclusions in the steel are mainly composed of Ca, Al, 0 and S, and a CaO content in the inclusions is in the range of 30 to 80%, the ratio of the N content in the steel to the CaO content in the inclusions satisfying equation (1), and a CaS content in the inclusions satisfies equation (2), 0.28≦[N]/(% CaO)≦2.0 (1) (% CaS)≦25% (2) where [N] represents the mass content (ppm) of N in the steel, (% CaO) represents the mass content (%) of CaO in the inclusions, and (% CaS) represents the mass content (%) of CaS in the inclusions.
摘要翻译： 耐酸性优异的钢管用钢的制造方法，其特征在于，在Ca添加之前，根据钢水中的N含量，控制钢水中加入的钢水量。 钢中的非金属夹杂物主要由Ca，Al，O和S组成，夹杂物中的CaO含量在30〜80％的范围内，钢中的N含量与CaO含量的比例 满足式（1）的夹杂物和夹杂物中的CaS含量满足式（2），0.28＆nlE; [N] /（％CaO）＆nlE; 2.0（1）（％CaS）＆nlE; 25％ [N]表示钢中N的质量含量（ppm），（CaO）表示夹杂物中的CaO的质量含量（％），（％CaS）表示夹杂物中CaS的质量含量（％） 。
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2.发明申请公开(公告)号：US20110209581A1
公开(公告)日：2011-09-01
申请号：US13103135
申请日：2011-05-09
IPC分类号： C21C7/00
CPC分类号： C21C7/06 , C21C7/0075 , C21C7/04 , C21C7/064 , C21C7/10 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06
摘要： The steel for steel pipes of the present invention is the one for steel pipes excellent in sour-resistance performance including C, Mn, Si, P, S, Ti, Al, Ca, N and O, and optionally including a predetermined amount of one or more of Cr, Ni, Cu, Mo, V, B and Nb, in which inclusions in the steel have Ca, Al, O and S as main components, the CaO content in the inclusions is 30 to 80%, the ratio of the N content in the steel (ppm) to the CaO content in the inclusions (%) is from 0.28 to 2.0, and the CaS content in the inclusions is 25% or less. In addition, the method of producing steel for steel pipes of the present invention is to produce steel for steel pipes in which Ca is added so that the ratio of the N content in the steel to the amount of Ca addition (kg/t) into the molten steel is from 200 to 857. According to the production method of the present invention, a slag composition, temperature-raising heating of molten steel, stirring treatment of molten steel and slag, and the Ca addition are optimized, whereby high-strength HIC resistant steel for steel pipes that exhibit excellent sour-resistance performance and cleanliness can be stably manufactured.
摘要翻译： 本发明的钢管用钢是耐酸性优异的钢管，包括C，Mn，Si，P，S，Ti，Al，Ca，N和O，并且可选地包括预定量的一种 以含有Ca，Al，O，S为主成分的Cr，Ni，Cu，Mo，V，B，Nb为主成分，夹杂物的CaO含量为30〜80％ 钢中的N含量（ppm）与夹杂物中的CaO含量（％）为0.28〜2.0，夹杂物中的CaS含量为25％以下。 另外，本发明的钢管用钢的制造方法是，生产加入了Ca的钢管，使钢中的N含量与Ca添加量的比例（kg / t）变成 钢水为200〜857。根据本发明的制造方法，优化炉渣组成，钢水升温加热，钢水和渣的搅拌处理以及Ca添加，优化了高强度 可以稳定地制造具有优异的耐酸性能和清洁度的用于钢管的HIC耐钢。
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3.发明申请公开(公告)号：US20100071509A1
公开(公告)日：2010-03-25
申请号：US12629182
申请日：2009-12-02
IPC分类号： C21C7/04
CPC分类号： C21C7/06 , C21C7/0075 , C21C7/04 , C21C7/064 , C21C7/10 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06
摘要： The steel for steel pipes of the present invention is the one for steel pipes excellent in sour-resistance performance including C, Mn, Si, P, S, Ti, Al, Ca, N and O, and optionally including a predetermined amount of one or more of Cr, Ni, Cu, Mo, V, B and Nb, in which inclusions in the steel have Ca, Al, O and S as main components, the CaO content in the inclusions is 30 to 80%, the ratio of the N content in the steel (ppm) to the CaO content in the inclusions (%) is from 0.28 to 2.0, and the CaS content in the inclusions is 25% or less. In addition, the method of producing steel for steel pipes of the present invention is to produce steel for steel pipes in which Ca is added so that the ratio of the N content in the steel to the amount of Ca addition (kg/t) into the molten steel is from 200 to 857. According to the production method of the present invention, a slag composition, temperature-raising heating of molten steel, stirring treatment of molten steel and slag, and the Ca addition are optimized, whereby high-strength HIC resistant steel for steel pipes that exhibit excellent sour-resistance performance and cleanliness can be stably manufactured.
摘要翻译： 本发明的钢管用钢是耐酸性优异的钢管，包括C，Mn，Si，P，S，Ti，Al，Ca，N和O，并且可选地包括预定量的一种 以含有Ca，Al，O，S为主成分的Cr，Ni，Cu，Mo，V，B，Nb为主成分，夹杂物的CaO含量为30〜80％ 钢中的N含量（ppm）与夹杂物中的CaO含量（％）为0.28〜2.0，夹杂物中的CaS含量为25％以下。 另外，本发明的钢管用钢的制造方法是，生产加入了Ca的钢管，使钢中的N含量与Ca添加量的比例（kg / t）变成 钢水为200〜857。根据本发明的制造方法，优化炉渣组成，钢水升温加热，钢水和渣的搅拌处理以及Ca添加，优化了高强度 可以稳定地制造具有优异的耐酸性能和清洁度的用于钢管的HIC耐钢。
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4.发明授权公开(公告)号：US07959709B2
公开(公告)日：2011-06-14
申请号：US12629182
申请日：2009-12-02
CPC分类号： C21C7/06 , C21C7/0075 , C21C7/04 , C21C7/064 , C21C7/10 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A method of producing steel pipe excellent in sour-resistance performance, uses comprises controlling the amount of Ca addition charged into molten steel in a ladle according to a N content in the molten steel prior to Ca addition. As a result of the controlling step, a CaO content in the inclusions is in the range of 30 to 80%, the ratio of the N content in the steel to the CaO content in the inclusions satisfies the relation expressed by equation (1), and a CaS content in the inclusions satisfies the relation expressed by equation (2). 0.28≦[N]/(% CaO)≦2.0 (1) (% CaS)≦25% (2) where [N] represents the mass content (ppm) of N in the steel, (% CaO) represents the mass content (%) of CaO in the inclusions, and (% CaS) represents the mass content (%) of CaS in the inclusions.
摘要翻译： 一种耐酸性优异的钢管的制造方法，其特征在于，在Ca添加之前，根据钢水中的N含量来控制钢水中加入的Ca的添加量。 作为控制步骤的结果，夹杂物中的CaO含量在30〜80％的范围内，钢中的N含量与夹杂物中的CaO含量的比例满足式（1）所示的关系， 并且夹杂物中的CaS含量满足由式（2）表示的关系。 0.28＆nlE; [N] /（％CaO）＆nlE; 2.0（1）（％CaS）＆nlE; 25％（2）其中[N]表示钢中N的质量含量（ppm） 夹杂物中CaO的质量含量（％）和（％CaS）表示夹杂物中CaS的质量含量（％）。
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5.发明授权公开(公告)号：US08675347B2
公开(公告)日：2014-03-18
申请号：US13258507
申请日：2009-07-11
申请人： Masao Sakakura , Junichi Kawakami , Kazuma Okura , Shingo Takeuchi , Masashi Ozawa , Kenji Tamamitsu
发明人： Masao Sakakura , Junichi Kawakami , Kazuma Okura , Shingo Takeuchi , Masashi Ozawa , Kenji Tamamitsu
IPC分类号： H01G9/02
摘要： Disclosed are an aluminum electrolytic capacitor having low impedance properties and a long service life, and an electrolytic solution which enables to give such capacitor. The electrolytic solution contains a solvent containing water, a phosphorus oxoacid ion-generating compound which can generate a phosphorus oxoacid ion in an aqueous solution, and a chelating agent which can coordinate with aluminum to form an aqueous aluminum chelate complex. The electrolytic solution further contains a compound selected from the group consisting of azelaic acid and an azelaic acid salt, and a compound selected from the group consisting of formic acid, a formic acid salt, adipic acid, an adipic acid salt, glutaric acid and a glutaric acid salt. The content of azelaic acid and/or the azelaic acid salt is at least 0.03 moles per kg of the solvent. When the electrolytic solution is used in an electrolytic capacitor which utilizes an anode having an aluminum oxide film containing phosphorus in an amount of 30 to 150 mg per unit CV product in terms of phosphoric acid, the service life of the capacitor is remarkably prolonged.
摘要翻译： 公开了一种具有低阻抗性和长使用寿命的铝电解电容器，以及能够提供这种电容器的电解液。 电解液含有含水的溶剂，能够在水溶液中产生含磷酸的离子的含磷酸氧离子的化合物，以及可与铝配位以形成铝酸水溶液络合物的螯合剂。 电解液还含有选自壬二酸和壬二酸盐的化合物和选自甲酸，甲酸盐，己二酸，己二酸盐，戊二酸和 戊二酸盐。 壬二酸和/或壬二酸盐的含量为每千克溶剂至少0.03摩尔。 当电解液用于利用具有氧化铝膜的阳极的电解电容器时，磷酸的含量为每单位CV产品30〜150mg，磷的使用寿命显着延长。
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6.发明申请公开(公告)号：US20120026645A1
公开(公告)日：2012-02-02
申请号：US13258507
申请日：2009-07-11
申请人： Masao Sakakura , Junichi Kawakami , Kazuma Okura , Shingo Takeuchi , Masashi Ozama , Kenji Tamamitsu
发明人： Masao Sakakura , Junichi Kawakami , Kazuma Okura , Shingo Takeuchi , Masashi Ozama , Kenji Tamamitsu
摘要： Disclosed are an aluminum electrolytic capacitor having low impedance properties and a long service life, and an electrolytic solution which enables to give such capacitor. The electrolytic solution contains a solvent containing water, a phosphorus oxoacid ion-generating compound which can generate a phosphorus oxoacid ion in an aqueous solution, and a chelating agent which can coordinate with aluminum to form an aqueous aluminum chelate complex. The electrolytic solution further contains a compound selected from the group consisting of azelaic acid and an azelaic acid salt, and a compound selected from the group consisting of formic acid, a formic acid salt, adipic acid, an adipic acid salt, glutaric acid and a glutaric acid salt. The content of azelaic acid and/or the azelaic acid salt is at least 0.03 moles per kg of the solvent. When the electrolytic solution is used in an electrolytic capacitor which utilizes an anode having an aluminum oxide film containing phosphorus in an amount of 30 to 150 mg per unit CV product in terms of phosphoric acid, the service life of the capacitor is remarkably prolonged.
摘要翻译： 公开了一种具有低阻抗性和长使用寿命的铝电解电容器，以及能够提供这种电容器的电解液。 电解液含有含水的溶剂，能够在水溶液中产生含磷酸的离子的含磷酸氧离子的化合物，以及可与铝配位以形成铝酸水溶液络合物的螯合剂。 电解液还含有选自壬二酸和壬二酸盐的化合物和选自甲酸，甲酸盐，己二酸，己二酸盐，戊二酸和 戊二酸盐。 壬二酸和/或壬二酸盐的含量为每千克溶剂至少0.03摩尔。 当电解液用于利用具有氧化铝膜的阳极的电解电容器时，磷酸的含量为每单位CV产品30〜150mg，磷的使用寿命显着延长。
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