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公开(公告)号：EP4325701A1
公开(公告)日：2024-02-21
申请号：EP22788185.1
申请日：2022-04-13
发明人： TAKEDA, Kazutoshi , TAKATANI, Shinsuke , HIRAYAMA, Ryu , FUKUCHI, Minako , IWASE, Yoshiaki , NIWA, Makoto , HIRAKAWA, Makoto
摘要： This electrical steel sheet contains: as a chemical composition, in a unit of mass%, 2.5% to 3.9% of Si; 0.001% to 3.0% of Al; and 0.05% to 5.0% of Mn, the remainder being Fe and impurities, and, on one surface or both surfaces thereof, an insulating coating containing a curing accelerator is formed.
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2.发明公开
公开(公告)号：EP4325535A1
公开(公告)日：2024-02-21
申请号：EP22788187.7
申请日：2022-04-13
发明人： TAKEDA, Kazutoshi , TAKATANI, Shinsuke , HIRAYAMA, Ryu , FUKUCHI, Minako , IWASE, Yoshiaki , NIWA, Makoto , HIRAKAWA, Makoto
摘要： This bonded and stacked core manufacturing method is for manufacturing a bonded and stacked core by performing press working on a strip-shaped steel sheet with a press working oil applied to one surface or both surfaces thereof, applying an adhesive to one surface of the strip-shaped steel sheet to obtain a plurality of steel sheet components, and stacking and bonding the steel sheet components, in which a curing accelerator having an average viscosity of 0.01 Pa·s to 100 Pa·s is applied to one surface or both surfaces of the strip-shaped steel sheet before the press working oil is applied.
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3.发明公开
公开(公告)号：EP4181365A1
公开(公告)日：2023-05-17
申请号：EP21837998.0
申请日：2021-07-06
发明人： TAKEDA, Kazutoshi , TAKATANI, Shinsuke , HIRAYAMA, Ryu , IWASE, Yoshiaki , NIWA, Makoto , YAMADA, Masashi
IPC分类号： H02K15/02
摘要： This adhesively-laminated core manufacturing method is a method for manufacturing an adhesively-laminated core by punching a plurality of steel sheet parts while a strip-shaped steel sheet is fed and laminating the steel sheet parts via an adhesive, and includes a step of forming a curing acceleration portion by applying and drying a curing accelerator on one or both surfaces of the strip-shaped steel sheet before a pressing oil is applied, and a step of applying the pressing oil to a surface of the curing acceleration portion.
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公开(公告)号：EP4442784A1
公开(公告)日：2024-10-09
申请号：EP22901339.6
申请日：2022-11-29
摘要： An anaerobic curing adhesive composition of the disclosure contains a polymer or an oligomer having two or more (meth)acryloyl groups in one molecule, a polyfunctional ethylenically unsaturated compound other than the urethane (meth)acrylate, a radical polymerization initiator, and an anaerobic curing catalyst.
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5.发明公开
公开(公告)号：EP4442783A1
公开(公告)日：2024-10-09
申请号：EP22901338.8
申请日：2022-11-29
发明人： IWASE, Yoshiaki , ARAI, Mikako , NIWA, Makoto , TAKEDA, Kazutoshi , FUKUCHI, Minako , NATORI, Yoshiaki
IPC分类号： C09J4/02 , C09D4/02 , C09D5/00 , C09J11/06 , C09J175/16
CPC分类号： C09J11/06 , C09D5/00 , C09D4/00 , C09J4/00 , C09J175/16
摘要： An anaerobic curing adhesive composition of the disclosure contains a compound having an aromatic ring and an ethylenically unsaturated group, a polymer or an oligomer having two or more (meth)acryloyl groups in one molecule, a radical polymerization initiator, and an anaerobic curing catalyst.
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公开(公告)号：EP4456093A2
公开(公告)日：2024-10-30
申请号：EP24199810.3
申请日：2021-06-17
IPC分类号： H01F3/02
摘要： This electrical steel sheet is an electrical steel sheet in which at least part of either or both surfaces of a base steel sheet is coated with an insulation coating having an adhesive ability, wherein a logarithmic decrement of the insulation coating in a temperature range of 25 to 100°C is 0.3 or less.
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公开(公告)号：EP4350032A1
公开(公告)日：2024-04-10
申请号：EP22811431.0
申请日：2022-05-27
摘要： Provided is a grain oriented electrical steel sheet including a base metal steel sheet, an intermediate layer and an insulation coating, wherein: the intermediate layer is an oxide film; an average thickness of the oxide film is 2-500 nm; the insulation coating is a phosphate coating; an average thickness of the insulation coating is 0.1-10µm. When grazing incidence X-ray diffraction is performed on the phosphate coating using a Co-Kα excitation source, the X-ray diffraction pattern has a diffraction peak originating from cristobalite-type aluminum phosphate at a diffraction angle of 20 = 24.8°; a half value width FWHM 0.5 of the diffraction peak under a diffraction condition with an X-ray incident angle ω = 0.5°and a half value width FWHM 1.0 of the diffraction peak under a diffraction condition with an X-ray incident angle ω = 1.0°satisfy 0.20°≤ FWHM 0.5 ≤2.00°, 0.20°≤ FWHM 1.0 ≤2.00°, and 0°≤ |FWHM 0.5 -FWHM 1.0 | ≤1.00°.
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公开(公告)号：EP4317485A1
公开(公告)日：2024-02-07
申请号：EP22781157.7
申请日：2022-03-30
摘要： This non-oriented electrical steel sheet includes a base steel sheet (10); and an insulation coating (20) formed on a surface of the base steel sheet (10), in which the insulation coating (20) contains a metal phosphate and an organic resin, an arithmetic mean of a center line average roughness Ra 75 of the insulation coating (20) in a rolling direction of the base steel sheet (10) and a center line average roughness Ra 75 of the insulation coating (20) in a direction perpendicular to the rolling direction is 0.20 to 0.50 µm, and the amount of nitrogen in the insulation coating (20) is 0.05 to 5.00 mass%.
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公开(公告)号：EP4130304A1
公开(公告)日：2023-02-08
申请号：EP20928444.7
申请日：2020-04-02
摘要： A chemical composition of a base metal of a non-oriented electrical steel sheet contains, by mass%, C: 0.0050% or less, Si: 3.8% to 5.0%, Mn: exceeding 0.2% and less than 2.0%, P: 0.030% or less, S: 0.0030% or less, Al: 0.005% or more and less than 0.050%, N: 0.0005% to 0.0030%, Ti: less than 0.0050%, Nb: less than 0.0050%, Zr: less than 0.0050%, V: less than 0.0050%, Cu: less than 0.20%, Ni: less than 0.50%, Sn: 0% to 0.10%, Sb: 0% to 0.10%, a remainder: Fe and impurities. [Si + 0.5 × Mn ≥ 4.3] is satisfied and the average grain size of the base metal is in a range of 10 to 80 µm.
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10.发明公开
公开(公告)号：EP4033005A1
公开(公告)日：2022-07-27
申请号：EP20865681.9
申请日：2020-09-18
发明人： TAKEDA, Kazutoshi , YAMAZAKI, Shuichi , MATSUMOTO, Takuya , FUJII, Hiroyasu , TAKAHASHI, Masaru
摘要： There is provided a non-oriented electrical steel sheet that includes a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, wherein the insulating coating film mainly contains metal phosphate, organic resin, and water-soluble organic compound, the water-soluble organic compound has an SP value that is within a range of 10.0 to 20.0 (cal/cm 3 ) 1/2 , the metal phosphate contains aluminum and zinc as metallic elements, and when measurement by an X-ray photoelectron spectroscopy is performed from a surface of the insulating coating film in a thickness direction of the non-oriented electrical steel sheet, a depth at which a strength of a 2p peak of zinc reaches a maximum is present closer to the surface side than a depth at which a strength of a 2p peak of aluminum reaches a maximum, and a maximum value of the strength of the 2p peak of zinc is 1 to 20 times a strength of the 2p peak of aluminum at the depth at which the strength of the 2p peak of zinc reaches a maximum.
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