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公开(公告)号：US10739285B2
公开(公告)日：2020-08-11
申请号：US15553049
申请日：2016-02-17
Applicant: JFE STEEL CORPORATION
Inventor： Yusuke Dohi , Kiyoshi Fukada , Takashi Matsui , Mikiya Nagayama , Narumi Nanri , Kazutoshi Hanada
Abstract: A method for accurately measuring the thermoplasticity of a coal whose thermoplasticity has been difficult to evaluate and determining whether the coal that is to be measured does not significantly reduce the coke strength when used for a coal blend is disclosed. Also disclosed is a method for evaluating a coal used as a raw material for coke and includes using a physical property value relating to a thermoplasticity of a coal as an index for evaluating the coal, wherein a primary or secondary amine including an aromatic ring have been added to the coal, thereby enhancing the thermoplasticity of the coal.
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公开(公告)号：US10414986B2
公开(公告)日：2019-09-17
申请号：US15312400
申请日：2015-05-15
Applicant: JFE STEEL CORPORATION
Inventor： Yusuke Dohi , Yoshiko Maeta , Kazutoshi Hanada , Kiyoshi Fukada , Takashi Matsui , Michio Honma , Masahiro Shinohara
Abstract: A method for manufacturing coke having a high strength and excellent extrusion capability. The method includes a preparing step of blending two or more coal brands to prepare a coal blend, a stirring and mixing step of stirring and mixing the coal blend to disintegrate at least a part of pseudo-particles that have been formed by agglomeration of coal particles in the coal blend, and a carbonizing step of charging the stirred and mixed coal blend into a coke oven to carbonize the stirred and mixed coal blend. Additionally, a mixing apparatus is used in the stirring and mixing step that has a capability of controlling a degree of mixing of the coal blend to be 0.85 or more at 60 seconds after start of a mixing operation. The degree of mixing is calculated by the following equation (1): degree of mixing=(σC0−σC)/(σC0−σCf) (1).
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公开(公告)号：US20160369406A1
公开(公告)日：2016-12-22
申请号：US15121589
申请日：2015-02-27
Applicant: JFE STEEL CORPORATION
Inventor： Katsuya Hoshino , Shoichiro Taira , Masayasu Nagoshi , Kazutoshi Hanada
CPC classification number: C23C22/50 , C23C2/06 , C23C2/26 , C23C2/40 , C23C22/53 , C23C22/62 , C23C22/78 , C23C22/83 , C23C28/3225 , C23C28/345
Abstract: A method for producing a galvanized steel sheet includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains P ions at a P concentration of 0.01 g/L or more and carbonate ions at a carbonate ion concentration of 0.1 g/L or more.
Abstract translation: 镀锌钢板的制造方法包括使镀锌钢板与含有硫酸根离子的酸性溶液接触的氧化物层形成工序，然后将镀锌钢板保持1〜60秒，然后洗涤镀锌钢板 水表; 和在氧化物层形成工序中形成的氧化物层的表面与碱性水溶液接触0.5秒以上，然后用水洗涤并干燥的中和处理工序。 碱性水溶液含有P浓度为0.01g / L以上的P离子和碳酸根离子浓度为0.1g / L以上的碳酸根离子。
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公开(公告)号：US20180087158A1
公开(公告)日：2018-03-29
申请号：US15561335
申请日：2016-03-11
Applicant: JFE STEEL CORPORATION
Inventor： Takashi Terashima , Kazutoshi Hanada , Ryuichi Suehiro , Makoto Watanabe , Toshito Takamiya
CPC classification number: C23C22/33 , C21D8/1283 , C21D9/46 , C23C22/74 , C23C22/78 , C23C22/82 , H01F27/245 , H01F41/0233
Abstract: Provided are an insulation-coated oriented magnetic steel sheet having an insulating coat with excellent heat resistance; and a method for manufacturing the same. This insulation-coated oriented magnetic steel sheet has an oriented magnetic steel sheet, and an insulating coat arranged on the surface of the oriented magnetic steel sheet, the insulating coat containing Si, P, O, and Cr, and at least one element selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn. The XPS spectrum of the outermost surface of the insulating coat has peaks observed at Cr2p1/2 and Cr2p3/2.
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公开(公告)号：US20180080127A1
公开(公告)日：2018-03-22
申请号：US15561369
申请日：2016-03-11
Applicant: JFE STEEL CORPORATION
Inventor： TAKASHI TERASHIMA , Kazutoshi Hanada , Ryuichi Suehiro , Makoto Watanabe , Toshito Takamiya
CPC classification number: C23C22/22 , C23C22/12 , C23C22/18 , C23C22/20 , C23C22/33 , C23C22/42 , C23C22/74
Abstract: Provided are an insulating-coated oriented magnetic steel sheet having an insulating coating of excellent heat resistance, and a method for manufacturing the same. This insulating-coated oriented magnetic steel sheet has an oriented magnetic steel sheet, and an insulating coating arranged on the surface of the oriented magnetic steel sheet. The insulating coating contains Si, P, and O, and at least one element selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn, the K-absorption edge of the P in the insulating coating having an XAFS spectrum that exhibits three absorption peaks from 2156 eV to 2180 eV.
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Patent Agency Ranking
公开(公告)号：US20180031501A1
公开(公告)日：2018-02-01
申请号：US15553049
申请日：2016-02-17
Applicant: JFE STEEL CORPORATION
Inventor： Yusuke Dohi , Kiyoshi Fukada , Takashi Matsui , Mikiya Nagayama , Narumi Nanri , Kazutoshi Hanada
Abstract: A method for accurately measuring the thermoplasticity of a coal whose thermoplasticity has been difficult to evaluate and determining whether the coal that is to be measured does not significantly reduce the coke strength when used for a coal blend is disclosed. Also disclosed is a method for evaluating a coal used as a raw material for coke and includes using a physical property value relating to a thermoplasticity of a coal as an index for evaluating the coal, wherein a primary or secondary amine including an aromatic ring have been added to the coal, thereby enhancing the thermoplasticity of the coal.
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公开(公告)号：US10982329B2
公开(公告)日：2021-04-20
申请号：US15561335
申请日：2016-03-11
Applicant: JFE STEEL CORPORATION
Inventor： Takashi Terashima , Kazutoshi Hanada , Ryuichi Suehiro , Makoto Watanabe , Toshito Takamiya
Abstract: Provided are an insulation-coated oriented magnetic steel sheet having an insulating coat with excellent heat resistance; and a method for manufacturing the same. This insulation-coated oriented magnetic steel sheet has an oriented magnetic steel sheet, and an insulating coat arranged on the surface of the oriented magnetic steel sheet, the insulating coat containing Si, P, O, and Cr, and at least one element selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn. The XPS spectrum of the outermost surface of the insulating coat has peaks observed at Cr2p1/2 and Cr2p3/2.
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公开(公告)号：US10920323B2
公开(公告)日：2021-02-16
申请号：US15561369
申请日：2016-03-11
Applicant: JFE STEEL CORPORATION
Inventor： Takashi Terashima , Kazutoshi Hanada , Ryuichi Suehiro , Makoto Watanabe , Toshito Takamiya
Abstract: Provided are an insulating-coated oriented magnetic steel sheet having an insulating coating of excellent heat resistance, and a method for manufacturing the same. This insulating-coated oriented magnetic steel sheet has an oriented magnetic steel sheet, and an insulating coating arranged on the surface of the oriented magnetic steel sheet. The insulating coating contains Si, P, and O, and at least one element selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn, the K-absorption edge of the P in the insulating coating having an XAFS spectrum that exhibits three absorption peaks from 2156 eV to 2180 eV.
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公开(公告)号：US10392706B2
公开(公告)日：2019-08-27
申请号：US15121589
申请日：2015-02-27
Applicant: JFE STEEL CORPORATION
Inventor： Katsuya Hoshino , Shoichiro Taira , Masayasu Nagoshi , Kazutoshi Hanada
IPC: C23C22/53 , C23C22/50 , C23C22/83 , C23C2/06 , C23C2/26 , C23C2/40 , C23C28/00 , C23C22/62 , C23C22/78
Abstract: A method for producing a galvanized steel sheet includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains P ions at a P concentration of 0.01 g/L or more and carbonate ions at a carbonate ion concentration of 0.1 g/L or more.
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公开(公告)号：US10351960B2
公开(公告)日：2019-07-16
申请号：US15122036
申请日：2015-02-27
Applicant: JFE STEEL CORPORATION
Inventor： Katsuya Hoshino , Shoichiro Taira , Masayasu Nagoshi , Kazutoshi Hanada
IPC: C23C22/53 , B32B15/04 , C23C22/83 , C23C2/06 , C23C2/26 , C23C2/40 , C25D5/00 , C23C28/00 , B32B15/18 , C23C2/28
Abstract: Provided is a method for producing a galvanized steel sheet that includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains 0.1 g/L or more of carbonate ions.
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