-
公开(公告)号：EP3922741A1
公开(公告)日：2021-12-15
申请号：EP20920764.6
申请日：2020-04-17
发明人： FUJII, Hiroyasu , MAKI, Jun , TAKEDA, Kazutoshi , MIMURA, Hiroyuki , KANTO, Yusuke , YAMAZAKI, Shuichi
摘要： A non-oriented electrical steel sheet according to one embodiment of this invention includes a base metal steel sheet and a composite coating film composed of a Zn-containing phosphate and an organic resin, the composite coating film being formed on a surface of the base metal steel sheet. A molar ratio of Zn to all metal components in the composite coating film is 10 mol% or more, and after the non-oriented electrical steel sheet is boiled for 20 minutes in boiled distilled water, an amount of soluble Zn in the distilled water is 1.0 mg/m 2 or more. The method for determining the amount of soluble Zn is in accordance with JIS K 0102: 2016 "Testing Methods for Industrial Wastewater", 53.3 "ICP Emission Spectroscopy".
-
公开(公告)号：EP4439928A1
公开(公告)日：2024-10-02
申请号：EP22898280.7
申请日：2022-10-19
IPC分类号： H02K1/18
CPC分类号： H02K1/18
摘要： An electrical steel sheet includes an annular body. At least one of a plurality of adhesion layers (41) is a first adhesion layer. In one of two electrical steel sheets sandwiching the first adhesion layer in a stacking direction, when an imaginary axis intersecting with a central axis of the annular body and extending in an easy-magnetization direction is defined as an L-axis, an imaginary axis intersecting with the central axis and intersecting with the L-axis is defined as a C-axis, and the electrical steel sheet is partitioned into a plurality of sections (S) in a circumferential direction of the annular body by the L-axis and the C-axis, at least one of the plurality of sections (S) is a first section. In the first section, an area of the first adhesion layer in a first portion (P1) of the electrical steel sheet where a main magnetic flux is generated in the L-axis direction is smaller than an area of the first adhesion layer in a second portion (P2) of the electrical steel sheet where the main magnetic flux is generated in the C-axis direction.
-
公开(公告)号：EP4397785A1
公开(公告)日：2024-07-10
申请号：EP22864718.6
申请日：2022-09-02
摘要： A non-oriented electrical steel sheet 1 of the present embodiment is provided with a base metal steel sheet 10 and an insulating coating film 20 formed on the surface of the base metal steel sheet 10. The insulating coating film 20 contains metal phosphate, organic resin, and nitrite. The insulating coating film 20 has a nitrogen content of 0.05-5.00% by mass.
-
14.发明公开
公开(公告)号：EP4325534A1
公开(公告)日：2024-02-21
申请号：EP22788183.6
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 a method 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 anaerobic adhesive and an instantaneous 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 accelerating layer is formed by applying an anaerobic adhesive curing accelerator and an instantaneous adhesive curing accelerator to one surface or both surfaces of the strip-shaped steel sheet before the press working oil is applied, and drying the adhesive curing accelerator and the instantaneous adhesive curing accelerator.
-
公开(公告)号：EP4321635A1
公开(公告)日：2024-02-14
申请号：EP22784692.0
申请日：2022-04-06
摘要： This grain-oriented electrical steel sheet includes: a base steel sheet; and an insulating coating formed on a surface of the base steel sheet, in which the insulating coating includes an intermediate layer formed on a base steel sheet side and containing a crystalline metal phosphate, and a tension coating layer formed on a surface side of the insulating coating, the surface of the base steel sheet has an etch pit structure, an average thickness of the intermediate layer is 0.2 to 10.0 µm, an average thickness of the insulating coating is 2.0 to 10.0 µm, the tension coating layer contains a metal phosphate and silica, and an amount of the silica in the tension coating layer is 20 to 60 mass%.
-
公开(公告)号：EP4170876A1
公开(公告)日：2023-04-26
申请号：EP21825536.2
申请日：2021-06-17
摘要： Provided is a method of manufacturing a laminated core by punching electrical steel strips including an insulation coating to obtain core single sheets and laminating the core single sheets, the method including: pressurizing two or more electrical steel strips using a guide roller to temporarily bond the electrical steel strips immediately before the punching; and obtaining the core single sheets by performing the punching after inserting the two or more electrical steel strips after the temporary bonding into a punching die.
-
公开(公告)号：EP3902121A1
公开(公告)日：2021-10-27
申请号：EP19899295.0
申请日：2019-12-17
发明人： TAKEDA, Kazutoshi , HIRAYAMA, Ryu
摘要： Provided is an adhesively-laminated core for a stator including: a plurality of electrical steel sheets which have phosphate-based insulation coatings on surfaces thereof and are overlapped coaxially with each other; and adhesion parts provided between the respective electrical steel sheets, an average thickness of the insulation coatings is 0.3 µm to 1.2 µm, an average thickness of the adhesion parts is 1.0 µm to 3.0 µm, and in a case where the average thickness of the insulation coating is defined as t1 in a unit of µm, and the average thickness of the adhesion parts is defined as t2 in a unit of µm, the following Equation 1 is satisfied. − 4.3 × t1 + 3.6 ≤ t 2 ≤ − 4.3 × t 1 + 6.9
-
公开(公告)号：EP3604614A1
公开(公告)日：2020-02-05
申请号：EP18771676.6
申请日：2018-03-23
IPC分类号： C23C22/00 , C22C38/00 , C22C38/06 , C23C22/08 , C23C22/12 , C23C22/18 , C23C22/20 , C23C22/22 , H01F1/147
摘要： The present invention relates to an electrical steel sheet and a coating liquid for electrical steel sheets; and the purpose of the present invention is to provide an electrical steel sheet which has more excellent heat resistance, corrosion resistance and appearance without containing chromium, and which exhibits excellent insulating properties even after stress relief annealing performed at temperatures higher than ever before, and a coating liquid for achieving this electrical steel sheet. An electrical steel sheet according to the present invention is mainly composed of a metal phosphate and fine plate-like inorganic compound particles, secondary particles of which have an average particle diameter of from 0.05 µm to 5 µm (inclusive) and a specific surface area of 1-80 m 2 /g, and primary particles of which have an aspect ratio of 50-1,000. The content of the fine plate-like inorganic compound particles is from 0.1 part by mass to 20 parts by mass (inclusive) relative to 100 parts by mass of the metal phosphate; and each of the fine plate-like inorganic compound particles has an insulating coating on the surface, said coating containing no chromium.
-
19.发明公开ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING SAME 有权VERFAHREN ZU SEINER HERSTELLUNG ELEKTROMAGNETISCHES STAHLBLECH
公开(公告)号：EP2366810A1
公开(公告)日：2011-09-21
申请号：EP09828970.5
申请日：2009-11-10
CPC分类号： H01F1/18 , C22C38/02 , C22C38/04 , C22C38/06 , Y10T428/31678 , Y10T428/31681
摘要： An electrical steel sheet provides: a steel strip (1) for an electrical steel sheet; and an insulating film (2) formed at a surface of the steel strip (1) and containing metal phosphate and organic resin. At least a part of the metal phosphate includes at least one kind of crystal structure selected from a group consisting of a cubic system, a tetragonal system, a hexagonal system, and an orthorhombic system. The organic resin contains at least one kind selected from a group consisting of an acryl-based resin, an epoxy-based resin, and a polyester resin having a carboxyl group or a hydroxyl group at a surface of an emulsion particle for one part by mass to 50 parts by mass relative to 100 parts by mass of the metal phosphate.
摘要翻译： 电工钢板提供：电工钢板用钢带（1） 以及形成在钢带（1）的表面并且含有金属磷酸盐和有机树脂的绝缘膜（2）。 金属磷酸盐的至少一部分包括选自立方晶系，四方晶系，六方晶系和正交晶系的至少一种晶体结构。 有机树脂含有选自丙烯酸类树脂，环氧类树脂和乳液颗粒表面的羧基或羟基的聚酯树脂中的至少一种，为1质量份 相对于100质量份的金属磷酸盐为50质量份。
-
公开(公告)号：EP2264220A1
公开(公告)日：2010-12-22
申请号：EP09728022.6
申请日：2009-03-30
发明人： TAKAHASHI, Fumiaki , TAKEDA, Kazutoshi , FUJII, Hiroyasu , YAMAZAKI, Shuichi , NATORI, Yoshiaki
CPC分类号： C23C22/74 , C21D8/1288 , C21D2201/05 , C23C22/20 , C23C22/22 , H01F1/14725 , H01F1/18
摘要： A grain-oriented electrical steel sheet has a tension film that does not include chromium. In the present invention, the tension film, including a phosphate and silica as constituents, includes a manganese compound and a potassium compound. The mole ratio K/Mn of potassium to manganese in the film is set to a certain range. However, the manganese described herein does not refer to manganese derived from a manganese phosphate included in raw materials of the film. The film can be produced by preparing a coating solution by adding a compound, which includes the phosphate and the silica and also includes the potassium and the manganese, and applying the coating solution on a grain-oriented electrical steel sheet after final annealing is completed, followed by drying and baking.
-
-
-
-
-
-
-
-
-
搜索结果
52 条记录 (耗时 0.027 秒)
