公开(公告)号：US5840131A

公开(公告)日：1998-11-24

申请号：US836593

申请日：1997-05-17

Applicant: Kenichi Yakashiro ,  Hotaka Honma ,  Maremizu Ishibashi ,  Akira Sakaida ,  Tomoji Kumano ,  Koji Yamasaki ,  Katsuro Kuroki ,  Osamu Tanaka

Inventor： Kenichi Yakashiro ,  Hotaka Honma ,  Maremizu Ishibashi ,  Akira Sakaida ,  Tomoji Kumano ,  Koji Yamasaki ,  Katsuro Kuroki ,  Osamu Tanaka

IPC: C21D1/76 ,  C21D8/12 ,  H01F1/147 ,  H01F1/18

CPC classification number: H01F1/14783 ,  C21D8/1272 ,  C21D8/1283 ,  H01F1/18 ,  C21D1/76

Abstract: A process for producing a grain-oriented electrical steel sheet excellent in the glass film and the magnetic properties by coating a steel sheet with an annealing separator, finish annealing the steel sheet, and baking an insulating coating agent, which comprises coating the steel sheet having been decarburization annealed with an annealing separator prepared by allowing 100 parts by weight of MgO to contain, in the course from the step of producing MgO to the stage of preparing a slurry in the step of coating the steel sheet with MgO, halogens selected from F, Cl, Br and I or compounds of the halogens in an amount of 0.015 to 0.120 part by weight in terms of F, Cl, Br and I, and finish annealing the steel sheet.

Abstract translation: PCT No.PCT / JP95 / 02346 Sec。 371日期1997年5月15日 102（e）日期1997年5月15日PCT提交1995年11月16日PCT公布。 公开号WO96 / 15291 日期：1996年5月23日利用退火分离剂对钢板进行涂布，对钢板进行最终退火处理以及烘烤绝缘涂布剂，制造玻璃膜的特性优异的方向性电磁钢板的制造方法， 已经将退火隔板进行了脱碳退火处理的钢板，所述退火分离剂是在MgO的制造工序中，在从MgO的制造步骤到制备浆料的阶段中，含有100重量份的MgO， 选自F，Cl，Br和I的卤素或以F，Cl，Br和I换算为0.015至0.120重量份的卤素化合物，并对钢板进行最终退火。

公开(公告)号：US5397402A

公开(公告)日：1995-03-14

申请号：US252305

申请日：1994-06-01

Applicant: James G. Benford

Inventor： James G. Benford

IPC: B21B3/02 ,  B21B1/22 ,  B21H8/00 ,  C21D7/04 ,  C21D8/12 ,  H01F1/147 ,  H01F1/04

CPC classification number: C21D7/04 ,  C21D8/1294 ,  H01F1/14775 ,  H01F1/14783 ,  B21B1/227 ,  B21B2267/065

Abstract: A grain oriented silicon steel strip and method are provided for producing the same wherein a chevron pattern of scribe lines mechanically refines the magnetic domain wall spacings. Multiple chevron patterns are formed to extend always transversely across the strip width.

Abstract translation: 提供了一种晶粒取向硅钢带和方法，用于制造其中，其中划线的人字纹图案机械地提炼磁畴壁间隔。 形成多个人字形图案，以横向延伸穿过条带宽度。

公开(公告)号：US5067992A

公开(公告)日：1991-11-26

申请号：US582250

申请日：1990-09-14

Applicant: Norman M. Pavlik ,  John Sefko ,  Richard A. Miller

Inventor： Norman M. Pavlik ,  John Sefko ,  Richard A. Miller

IPC: C21D8/12 ,  H01F1/147 ,  H01F1/16

CPC classification number: H01F1/14783 ,  C21D8/1294 ,  H01F1/16 ,  Y10S428/928 ,  Y10T428/12361 ,  Y10T428/12465 ,  Y10T428/12653

Abstract: A steel sheet (10) having a stress-relief annealed, structure with a plurality of magnetic domains (12) is made by drilling a plurality of closely spaced, small holes (15) through the entire thickness of the steel sheet, where the drilling is effective to form additional domain walls (17) and subdivide the magnetic domains.

Abstract translation: 具有应力消除退火的结构的钢板（10）具有多个磁畴（12）的结构通过在钢板的整个厚度上钻出多个紧密间隔开的小孔（15）而制成，其中钻孔 有效地形成额外的畴壁（17）并细分磁畴。

公开(公告)号：US4844753A

公开(公告)日：1989-07-04

申请号：US183755

申请日：1988-03-25

Applicant: Kiichiro Katayama ,  Kenichi Masuhara ,  Yasuharu Maeda ,  Koji Wakabayashi

Inventor： Kiichiro Katayama ,  Kenichi Masuhara ,  Yasuharu Maeda ,  Koji Wakabayashi

IPC: C23C22/00 ,  C08L61/20 ,  C23C22/28 ,  C23C22/74 ,  H01B3/44 ,  H01F1/147

CPC classification number: H01F1/14783 ,  C08L61/20 ,  C23C22/28 ,  C23C22/74 ,  H01B3/44

Abstract: The present invention relates to a method for forming insulating films on electromagnetic steel plates.Conventional films obtained by coating only an inorganic component such as a chromate, forming an organic-component film on an inorganic-component film or coating a mixture of both components individually have had disadvantages such as the occurrence of crateriform pinholes, reductions in punching properties, rises in the cost and decreases in interlayer resistance and the like.The present invention provides a method wherein a composition obtained by combining an acrylic resin and/or an acryl-styrene resin and guanamine resin as the organic components with an inorganic substance composed mainly of a chromate is coated and dried on an electromagnetic steel plate to form thereon an insulating film.According to the present invention, it is possible to form an insulating film which has excellent film properties and is free from said disadvantages.

公开(公告)号：US4753687A

公开(公告)日：1988-06-28

申请号：US45490

申请日：1987-05-04

Applicant: Michael W. Howe

Inventor： Michael W. Howe

IPC: C23C22/00 ,  C21D1/70 ,  C21D9/46 ,  C23C24/00 ,  H01F1/147 ,  C23C22/50

CPC classification number: C21D1/70 ,  C23C24/00 ,  H01F1/14783

Abstract: This invention is directed to non-aqueous magnesium oxide slurries and the use thereof to coat silicon steels prior to high temperature annealing.

公开(公告)号：US4698272A

公开(公告)日：1987-10-06

申请号：US832172

申请日：1986-02-21

Applicant: Yukio Inokuti ,  Yo Ito

Inventor： Yukio Inokuti ,  Yo Ito

IPC: C21D8/12 ,  C23C14/00 ,  C23C14/02 ,  C23C14/06 ,  C23C14/58 ,  C23C16/02 ,  C23C16/56 ,  H01F1/147 ,  B32B15/04

CPC classification number: H01F1/14783 ,  C21D8/1277 ,  C23C14/02 ,  C23C14/027 ,  C23C14/028 ,  C23C14/0635 ,  C23C14/0641 ,  C23C14/5806 ,  C23C16/0209 ,  C21D8/1283 ,  Y10S428/90 ,  Y10T428/12542 ,  Y10T428/12576

Abstract: An extra-low iron loss grain oriented silicon steel sheet comprises a base metal of silicon steel and a thin coat of nitride or carbide of Ti, Zr, Hf, V, Nb, Ta, Mn, Cr, Mo, W, Co, Ni, Al, B and Si and strongly adhered to a finished surface of the base metal through a mixed layer of the base metal and the thin coat, and has excellent electrical and magnetic properties as well as good compressive stress dependence of magnetostriction and lamination factor.

Abstract translation: 超低铁损晶粒取向硅钢板包括硅钢贱金属和Ti，Zr，Hf，V，Nb，Ta，Mn，Cr，Mo，W，Co，Ni的氮化物或碳化物薄层 ，Al，B和Si，并通过贱金属和薄膜的混合层牢固地附着在母材的表面上，具有优异的电磁特性以及磁致伸缩和层压因子的良好的压应力依赖性。

公开(公告)号：US4618377A

公开(公告)日：1986-10-21

申请号：US785750

申请日：1985-10-09

Applicant: Motoharu Nakamura ,  Kikuzi Hirose ,  Tooru Sakamoto

Inventor： Motoharu Nakamura ,  Kikuzi Hirose ,  Tooru Sakamoto

IPC: C23C22/00 ,  C09D123/06 ,  C21D9/46 ,  C23C22/74 ,  H01B3/44 ,  H01F1/147 ,  C23C22/26

CPC classification number: C09D123/06 ,  C23C22/74 ,  H01B3/44 ,  H01F1/14783

Abstract: The insulating film comprised mainly of phosphate or chromate is improved in its insulation property required for the laminated core e.g., a transformer, the blanking property required for manufacturing the core sections from the electrical steel sheet, and the lamination weldability. The organic resin particles used for controlling the surface roughness of the film are preliminarily treated with a dispersion improver, and then added to the emulsion resin, which is then mixed with the phosphate or chromate.

Abstract translation: 主要由磷酸盐或铬酸盐构成的绝缘膜的叠层铁芯所需的绝缘性能得到改善，例如变压器，从电工钢板制造芯部所需的冲裁性能以及层压可焊性。 用分散改进剂预处理用于控制膜表面粗糙度的有机树脂颗粒，然后加入乳液树脂中，然后与磷酸盐或铬酸盐混合。

公开(公告)号：US4363677A

公开(公告)日：1982-12-14

申请号：US227379

申请日：1981-01-22

Applicant: Tadashi Ichiyama ,  Shigehiro Yamaguchi ,  Tohru Iuchi ,  Motoharu Nakamura ,  Yozo Suga

Inventor： Tadashi Ichiyama ,  Shigehiro Yamaguchi ,  Tohru Iuchi ,  Motoharu Nakamura ,  Yozo Suga

IPC: C21D1/09 ,  C21D8/12 ,  H01F1/147 ,  H01F1/04

CPC classification number: C21D8/1294 ,  C21D1/09 ,  H01F1/14783 ,  Y10T428/12924

Abstract: A process of providing electromagnetic steel strips or sheet with excellent magnetic properties. The process comprises the steps of:irradiating with a laser-beam the surface of an electromagnetic steel sheet which has been finally annealed, thereby locally forming marks of the laser-beam irradiation on the surface of the steel, and;subsequently, subjecting the steel sheet to the formation of an insulating film on the sheet surface at a temperature of the sheet not exceeding 600.degree. C.

Abstract translation: 提供具有优异磁性的电磁钢带或片材的方法。 该方法包括以下步骤：用激光束照射最终退火的电磁钢板的表面，从而在钢表面上局部地形成激光束照射标记; 随后在不超过600℃的片材的温度下对钢板在片材表面上形成绝缘膜。

公开(公告)号：US4265681A

公开(公告)日：1981-05-05

申请号：US60942

申请日：1979-07-26

Applicant: Robert F. Krause ,  Norman M. Pavlik ,  Kurt A. Grunert

Inventor： Robert F. Krause ,  Norman M. Pavlik ,  Kurt A. Grunert

IPC: H01F1/147 ,  H01F1/04

CPC classification number: H01F1/14783

Abstract: A method for making pressed magnetic components having a low core loss characterized by the steps of compacting a plurality of substantially rectangular particles of an oriented iron alloy having a silicon content of from about 2.5% to about 3.5% and a carbon content of up to 0.01% into a compact of predetermined configuration, and stress-relief annealing the compact in a non-oxidizing atmosphere so as to provide a magnetizable compact having low core loss.

Abstract translation: 一种制造具有低铁心损耗的压制磁性部件的方法，其特征在于以下步骤：压制硅含量为约2.5％至约3.5％且碳含量高达0.01的定向铁合金的多个基本矩形的颗粒 ％成为预定构造的压块，并且在非氧化性气氛中对压块进行应力消除退火，以提供具有低铁损的可磁化压块。

公开(公告)号：US4238534A

公开(公告)日：1980-12-09

申请号：US963987

申请日：1978-11-27

Applicant: Toshio Ichida ,  Toshihiko Funahashi

Inventor： Toshio Ichida ,  Toshihiko Funahashi

IPC: H01F1/18 ,  C09D5/25 ,  C23C22/00 ,  H01F1/147 ,  H01F27/33 ,  H01F41/02 ,  B05D3/02

CPC classification number: H01F41/0206 ,  C23C22/33 ,  C23C22/74 ,  H01F1/14783 ,  H01F27/33

Abstract: A heat-resistant insulating coating having a high adhesion can be formed on an oriented silicon steel sheet by the use of an aqueous coating dispersion containing colloidal silica dispersed therein, at least one of monobasic phosphates of Mg, Al, Sr, Ba and Fe, at least one compound selected from chromic acid anhydride, chromate and dichromate, and at least one fine particle oxide selected from SiO.sub.2, Al.sub.2 O.sub.3 and TiO.sub.2 having a primary particle size of 70-500A and an apparent density of not higher than 100 g/l. The steel sheet having the coating is low in the iron loss and magnetostriction and shows good heat-resistant property.

Abstract translation: 可以通过使用分散有胶体二氧化硅的水性涂料分散体，Mg，Al，Sr，Ba，Fe的一价磷酸盐中的至少一种，在取向硅钢板上形成粘合性高的耐热绝缘涂层， 至少一种选自铬酸酐，铬酸盐和重铬酸盐的化合物和至少一种选自SiO 2，Al 2 O 3和TiO 2的细颗粒氧化物，其一次粒径为70-500A，表观密度不高于100g / l。 具有该涂层的钢板的铁损和磁致伸缩性低，表现出良好的耐热性。