WO2016089076A1 - Tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et procédé de fabrication correspondant - Google Patents

Tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et procédé de fabrication correspondant Download PDF

Info

Publication number
WO2016089076A1
WO2016089076A1 PCT/KR2015/012963 KR2015012963W WO2016089076A1 WO 2016089076 A1 WO2016089076 A1 WO 2016089076A1 KR 2015012963 W KR2015012963 W KR 2015012963W WO 2016089076 A1 WO2016089076 A1 WO 2016089076A1
Authority
WO
WIPO (PCT)
Prior art keywords
silicon steel
steel sheet
high silicon
soft ferrite
magnetic properties
Prior art date
Application number
PCT/KR2015/012963
Other languages
English (en)
Korean (ko)
Inventor
홍병득
김동균
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to JP2017529702A priority Critical patent/JP6523458B2/ja
Priority to CN201580066230.0A priority patent/CN107002208B/zh
Publication of WO2016089076A1 publication Critical patent/WO2016089076A1/fr

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/02—Coating starting from inorganic powder by application of pressure only
    • C23C24/04—Impact or kinetic deposition of particles

Definitions

  • the present invention relates to a high silicon electrical steel sheet having excellent magnetic properties and a method of manufacturing the same, and more particularly, to form a composite structure by applying magnetic iron oxide before or after the final heat treatment to form a composite structure,
  • the present invention relates to a high silicon steel sheet and a method of manufacturing the same, which have dramatically improved their properties.
  • silicon-containing electrical steel sheets are used as iron core materials for transformers, electric motors, generators, and other electronic devices. Electrical steel sheets are required to have excellent magnetic flux density and iron loss. The larger the magnetic flux density is, the smaller the amount of iron cores are required to achieve the same performance, so that the electric apparatus can be miniaturized, and the smaller the iron loss, the smaller the energy loss.
  • Iron loss causing energy loss consists of eddy current loss and hysteresis loss. As the frequency increases in AC, the components of eddy current loss become larger. The eddy current loss is generated by the eddy current generated when the magnetic field is induced in the iron core, so silicon is added to reduce the eddy current loss. When the silicon content is added up to 6.5%, the magnetostriction causing noise is reduced to zero, and the permeability is maximized. When the silicon content is 6.5%, the high frequency characteristic is very good.
  • High-silicon steel sheet containing 6.5% Si is excellent in magnetic properties, but if the Si is more than 3.5%, cold rolling is impossible by the usual method. Therefore, since it is impossible to manufacture high silicon steel sheets by ordinary hot rolling-cold or hot rolling, it has been attempted to manufacture high silicon steel sheets having excellent magnetic properties by other methods.
  • the technologies known to produce high silicon steel sheet are the direct casting method using single roll or double roll such as Japanese Patent Laid-Open No. 56-3625, and the high silicon steel is placed inside the outside, such as Japanese Patent Laid-Open No. 5-171281.
  • the so-called clad method of rolling with low silicon steel in an attempt has been attempted, but these techniques have not been commercialized yet.
  • Korean Patent Publication No. 10-0374292 et al. Uses powder metallurgy to make high silicon steel blocks made of powder instead of high silicon steel sheets and use them as substitutes for high silicon steel sheets. Pure iron powder core, high silicon steel powder core, and sand dust powder core are used in combination, but the soft magnetic properties are inferior to that of high silicon steel sheet due to the characteristics of the powder.
  • An object of the present invention is to provide a high silicon steel sheet having excellent magnetic properties and a method of manufacturing the same, by forming a MnZnNi-based soft ferrite layer having excellent high frequency characteristics on a surface of a high silicon steel sheet, thereby dramatically improving the magnetic properties of the high frequency region.
  • a silicon steel molten metal composed of Si 4-7%, Al 0.1-3%, Si + Al sum of 5.5-7.5% by weight, and the remaining Fe is strip-casted under nitrogen or argon atmosphere.
  • a high silicon steel sheet including a heat treatment step, a warm rolling step of warm rolling the heat treated high silicon steel sheet to a final thickness of 0.5 mm or less, and a final heat treatment step of finally heat treating the high silicon steel sheet at a temperature of 800 ° C. to 1200 ° C.
  • a method of manufacturing a high silicon steel sheet having excellent magnetic properties comprising the step of forming a soft ferrite layer on the surface of the high silicon steel sheet manufactured to a final thickness Can be.
  • the soft ferrite layer may be formed on both sides of the surface of the high silicon steel sheet produced to the final thickness.
  • the soft ferrite layer may be made of MnZnNi-based soft ferrite.
  • the MnZnNi-based soft ferrite may be made of Mn oxide, Zn oxide, Ni oxide, Fe oxide.
  • the sum of the thicknesses of both surfaces of the soft ferrite layer may be 1 ⁇ m or more and 30 ⁇ m or less.
  • the soft ferrite layer forming step is a step of applying a soft ferrite powder mixed with an electrical steel coating liquid on the surface of the high silicon steel sheet,
  • the soft ferrite powder may be made of any one of the steps of adhering to the surface of the steel plate at high speed in a vacuum or at room temperature.
  • At least one of SiO 2 , CaO, Nb 2 O 5 , V 2 O 5 , ZrO 2 , and MoO 3 may be added to the soft ferrite layer.
  • a high silicon steel sheet having excellent magnetic properties may be provided, wherein a soft ferrite layer is formed on the surface of the high silicon steel sheet manufactured to a final thickness in order to improve the magnetism of the high frequency region.
  • the soft ferrite layer may be formed on both sides of the surface of the high silicon steel sheet produced to the final thickness.
  • the soft ferrite layer may be made of MnZnNi-based soft ferrite.
  • the MnZnNi-based soft ferrite may be made of Mn oxide, Zn oxide, Ni oxide, Fe oxide.
  • the sum of the thicknesses of both surfaces of the soft ferrite layer may be 1 ⁇ m or more and 30 ⁇ m or less.
  • the soft ferrite layer is a layer formed by applying a soft ferrite powder to the surface of the high silicon steel sheet by mixing with an electrical steel coating liquid, the soft ferrite powder is mixed with a phosphate-based binder on the surface of the high silicon steel sheet and then applied to the soft ferrite powder
  • the layer formed by mixing and applying the coating on the electrical steel sheet, and the soft ferrite powder may be any one of the layers formed on the surface by colliding the steel sheet at high speed in a vacuum or at room temperature.
  • At least one of SiO 2 , CaO, Nb 2 O 5 , V 2 O 5 , ZrO 2 , and MoO 3 may be added to the soft ferrite layer.
  • FIG. 1 is a block diagram of a method of manufacturing a high silicon steel sheet having excellent magnetic properties according to an embodiment of the present invention.
  • the inventors of the present invention invented a method of manufacturing a high silicon steel sheet which combines strip casting with a warm rolling method and replaces Al with 6.5% Si to provide excellent workability and excellent magnetic properties.
  • This excellent soft ferrite powder layer was formed to develop a composite structure to develop a high silicon steel sheet that greatly improved magnetic properties.
  • Soft ferrite is a compound having a spinel-type crystal structure, and the magnetic property of the material is easily changed depending on the direction and the magnitude of the magnetic field.
  • Fe2O3 iron oxide accounts for 60 to 70% by weight and is classified into manganese zinc ferrite, nickel zinc ferrite, magnesium zinc ferrite, and the like according to the remaining metal oxide components.
  • Hard ferrite, compared to soft ferrite, is a material that does not easily change its magnetic properties depending on the direction and magnitude of the magnetic field. It is also commonly referred to as a permanent magnet.
  • Fe2O3 iron oxide accounts for about 90% by weight and its use is divided according to the metal components added to improve other properties.
  • soft ferrite powder has high magnetic permeability, saturation magnetic flux density, low magnetic degradation at high temperature, and excellent magnetic stability.
  • MnZnNi ferrite has high saturation flux density, magnetic permeability and low loss magnetic properties in the relatively wide frequency range of 100KHz ⁇ 500KHz. Ferrite is used to make the core shape in the form of sintered powder.
  • the method of forming these soft ferrites on the surface of the high silicon electrical steel sheet was able to significantly improve the magnetic properties of the existing high silicon steel sheet.
  • the high frequency characteristics of high silicon steel sheet have excellent magnetism in the frequency range of several hundred Hz to several KHz. It has been found that forming a powder soft ferrite layer having excellent ultra-high frequency characteristics on the surface of such a high silicon steel sheet has more excellent characteristics.
  • High silicon electrical steel sheet having excellent magnetic properties, particularly high magnetic properties in the high frequency region according to an embodiment of the present invention, stripcasting, hot rolling, annealing heat treatment steel containing a large amount of Si and Al of more than 5.5% After making the final thickness by combining warm rolling, etc., the MnZnNi-based soft ferrite layer is formed on the surface.
  • the high silicon steel sheet by weight ratio of 4 to 7% of Si, 0.1 to 3% of Al, 5.5 to 7.5% of the sum of Si + Al and strip cast silicon steel molten metal consisting of the remaining Fe under nitrogen or argon atmosphere
  • the hot-rolled high silicon steel sheet is heat-treated in a non-oxidizing atmosphere of nitrogen, argon or a mixed atmosphere of hydrogen and nitrogen, and then has a final thickness of 0.5 mm or less.
  • the high silicon steel sheet is finally heat treated at a temperature of 800 °C ⁇ 1200 °C,
  • a soft ferrite layer may be formed on the surface of the high silicon steel sheet manufactured to a final thickness.
  • the high silicon steel sheet comprises a final heat treatment step (S50) for performing a final heat treatment at a temperature of 800 ⁇ 1200 °C,
  • After performing the final heat treatment step (S50), in order to improve the magnetic properties of the high frequency region includes the step of forming a soft ferrite layer on the surface of the high silicon steel sheet manufactured to the final thickness (S60).
  • the manufacturing method of the high silicon steel sheet which applies the method of forming a soft ferrite layer in the surface layer of the said high silicon steel sheet does not need to be limited to the method which combined strip casting and warm rolling.
  • the present invention is applicable not only to quench solidification by strip casting, but also to processes that can be produced through steelmaking-continuous casting-hot rolling. However, in methods other than strip casting, there is a possibility that productivity is extremely deteriorated due to crack generation during rolling. Furthermore, it is also applicable to the high silicon steel plate manufactured by the method of Japanese Unexamined-Japanese-Patent No. 38-26263 which makes high silicon steel by the CVD method using SiCl4 gas.
  • the Si content is 4% or less, the magnetism is not good. If the Si content is 7% or more, the machining is impossible.
  • Al content is less than 0.1%, there is no effect of improving the rollability, and if it is more than 3%, the rollability is not good. If Si + Al is less than 5.5%, the high frequency characteristics are not good, and if it is more than 7.5%, processing is impossible.
  • Hot roll immediately after strip casting rather than to hot roll immediately after casting by strip casting, since it can reduce the load of warm rolling.
  • Heat treatment prior to hot rolling eliminates the stresses generated during hot rolling, heat treatment in the region of A2 irregular phases, and then quenching to suppress formation of B2 and DO3 regular phases, resulting in better ductility.
  • the hot rolling temperature was investigated and found to be 300 ° C as the critical temperature. It appeared that there was little ductility when it became 300 degrees C or less, and extending
  • the high temperature steel sheet which is made thin by the final thickness of 0.5mm or less by the final rolling, is finally heat treated to improve magnetism. If the heat treatment temperature is 800 ° C. or less, the grain growth is insufficient and the iron loss is bad. If the heat treatment temperature is 1200 ° C or higher, it is not preferable in terms of economics and productivity, and even if a non-oxidation component crisis is used, the surface oxide layer is easily formed, which impedes the movement of the magnetic domains, thereby damaging magnetism.
  • MnZnNi-based soft ferrite consisting of manganese oxide, zinc oxide, nickel oxide and Fe-based oxide is applied to the surface of the high silicon steel made to the final thickness.
  • the soft ferrite powder may be applied by mixing with a conventional electrical steel coating liquid, or the soft ferrite powder may be applied by mixing with a phosphate binder and then coated with a conventional electrical steel coating liquid on the soft ferrite powder.
  • the thickness of the soft ferrite layer made of soft ferrite powder is 1 ⁇ m or more. If the thickness is 1 ⁇ or less, there is no effect of forming a composite structure. If the thickness of the soft ferrite layer is 30 ⁇ m or more, when punching the steel sheet, there is a disadvantage in that the surface layer is broken, so the upper limit of the thickness is 30 ⁇ m.
  • the demand for high-frequency electrical steel sheets used as iron core materials for high-frequency equipment is on the rise. It is widely used in motors used in computers, dental power tools, motors of electric vehicles, reactors, transformers for renewable energy, and generators.
  • the frequency range in which a high frequency electrical steel sheet is in charge is in the range of tens to hundreds of Hz, and the area in which high silicon steel is in charge is hundreds of Hz to several KHz.
  • powder sintered core using soft ferrite has been used above several tens of KHz.
  • the present inventors continued their research with the idea that forming a soft ferrite layer on the surface of high silicon steel would not only improve the magnetism of the high frequency region in charge of the high silicon steel, but also expand the usable frequency range.
  • a soft ferrite layer of 1 ⁇ m or more was formed on the surface of the silicon steel, the magnetism of the high silicon steel was greatly reduced.
  • the soft ferrite layer is applied to both surfaces of the sheet-like high silicon steel sheet surface.
  • the sum of the thicknesses of the soft ferrite layers coated on both surfaces of the surface of the high silicon steel sheet should be 1 ⁇ m or more.
  • the sum of both sides of the thickness of the soft ferrite layer exceeds 30 ⁇ m, when the steel sheet is punched in the form of a core, the surface layer is crumbly and it is found that there is a difficulty in maintaining the surface layer.
  • a method of forming the soft ferrite layer As a method of forming the soft ferrite layer, a method of mixing soft ferrite powder into a general electrical steel coating liquid and applying it, or mixing the soft ferrite powder with a phosphate or polymer and applying it to a high silicon steel sheet in a liquid state, and then a general electrical steel coating liquid And a method of applying the soft ferrite powder to a steel plate at high speed in a vacuum or at room temperature at high speed, and the like.
  • the configuration of the soft ferrite layer is composed of so-called MnZnNi-based soft ferrite composed of manganese oxide, zinc oxide, nickel oxide and iron oxide.
  • SiO 2 , CaO, Nb 2 O 5 , V 2 O 5 , ZrO 2 , MoO 3 in the soft ferrite At least one or more may be added. These oxides have excellent magnetic properties in the high frequency region, and can greatly improve the magnetism of the high silicon steel in the surface layer of the high silicon steel sheet.
  • High silicon steel alloys of 5.5% Si and 1.0% Al, by weight, were cast to a thickness of 2.0 mm using a vertical twin roll stripcaster.
  • a 2.0 mm thick strip was hot rolled to 1.0 mm using a hot rolling mill connected to the strip caster.
  • the hot rolling start temperature is 1050 ° C.
  • the hot rolled high silicon steel sheet was heated at 1000 ° C. for 5 minutes in an atmosphere of 20% hydrogen and 80% nitrogen, and then quenched to room temperature at a cooling rate of 200 ° C./sec.
  • the solution was pickled with hydrochloric acid to remove the surface oxide layer.
  • the heat-treated high silicon steel sheet was lowered to 0.1 mm at a temperature of 400 ° C., and then annealed at 1000 ° C. for 10 minutes at 1000 ° C. for 10 minutes in a dry atmosphere of 20% hydrogen, 80% nitrogen, and dew point below -10 ° C.
  • the MnZnNi soft ferrite was applied to the surface layer, the insulation coating was again applied on the application layer, and then cured to measure magnetic properties. Coating thickness is the combined value of the upper and lower surfaces of a steel plate.
  • the composition and magnetism of the soft ferrite are shown in Table 1.
  • B50 (T) which measured the magnetic properties shown in Table 1, measured the magnetic flux density, and the higher the magnetic flux density was, the better the magnetic property was.
  • W10 / 400 and W10 / 1000 are measured the iron loss of the commercial frequency, the lower the iron loss is evaluated as having a lower magnetic.
  • B50 (T) is the magnetic flux density value when the magnetic field strength is 5000 amp (amps) / m in Telsa unit
  • W10 / 400 (W / Kg) is the frequency when the magnetic flux density value is 1.0 Telsa. Is the loss value when 400Hz
  • W10 / 1000 (W / Kg) is the loss value when the frequency is 1000Hz when the magnetic flux density value is 1.0 Telsa.
  • the coating thickness of the soft ferrite layer is less than 1 ⁇ m, the high frequency iron loss characteristics are poor and there is no soft ferrite coating effect. If the coating thickness of the soft ferrite layer is 30um or more, the peeling phenomenon of the soft ferrite layer of the surface layer occurs, the surface roughness is not uniform, there is a disadvantage that the drop rate when laminated with the core.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

L'invention porte sur une tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et un procédé de fabrication de celle-ci. Selon la présente invention, le procédé pour la fabrication d'une tôle d'acier à haute teneur en silicium comprend : une étape de coulée en bande consistant à effectuer une coulée en bande sur un acier au silicium en fusion dans une atmosphère d'azote ou d'argon, l'acier au silicium en fusion étant constitué de 4 à 7 % en poids de Si, 0,1 à 3 % en poids d'Al et 5,5 à 7,5 % en poids de la somme de Si et d'Al, le reste étant du Fe ; une étape de laminage à chaud consistant à effectuer un laminage à chaud sur la bande coulée en bande pour fabriquer une tôle d'acier à haute teneur en silicium ; une étape de traitement thermique consistant à effectuer un traitement thermique sur la tôle d'acier à haute teneur en silicium laminée à chaud dans une atmosphère mélangée non oxydante constituée d'azote et d'argon ou d'hydrogène et d'azote ; une étape de laminage à chaud consistant à effectuer un laminage à chaud sur la tôle d'acier à haute teneur en silicium thermiquement traitée à une épaisseur finale inférieure ou égale à 0,5 mm ; et une étape de traitement thermique final consistant à effectuer un traitement thermique final sur la tôle d'acier à haute teneur en silicium à une température de 800 °C à 1200 °C, le procédé comprenant en outre l'étape consistant à former une couche de ferrite doux sur la surface de la tôle d'acier à haute teneur en silicium, qui est fabriquée à l'épaisseur finale, afin d'améliorer une propriété magnétique dans une zone de haute fréquence après la mise en œuvre de l'étape de traitement thermique final.
PCT/KR2015/012963 2014-12-05 2015-12-01 Tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et procédé de fabrication correspondant WO2016089076A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017529702A JP6523458B2 (ja) 2014-12-05 2015-12-01 磁気的性質に優れた高ケイ素鋼板およびその製造方法
CN201580066230.0A CN107002208B (zh) 2014-12-05 2015-12-01 磁性能优异的高硅钢板及其制备方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2014-0174452 2014-12-05
KR1020140174452A KR101633611B1 (ko) 2014-12-05 2014-12-05 자기적 성질이 우수한 고규소 강판 및 그 제조방법

Publications (1)

Publication Number Publication Date
WO2016089076A1 true WO2016089076A1 (fr) 2016-06-09

Family

ID=56091970

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2015/012963 WO2016089076A1 (fr) 2014-12-05 2015-12-01 Tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et procédé de fabrication correspondant

Country Status (4)

Country Link
JP (1) JP6523458B2 (fr)
KR (1) KR101633611B1 (fr)
CN (1) CN107002208B (fr)
WO (1) WO2016089076A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108575079A (zh) * 2017-03-08 2018-09-25 上海量子绘景电子股份有限公司 电磁屏蔽用复合叠层磁性材料结构及其制备方法
JP2019012777A (ja) * 2017-06-30 2019-01-24 新日鐵住金株式会社 無方向性電磁鋼板およびその製造方法
CN114293089A (zh) * 2021-12-31 2022-04-08 河北科技大学 一种软磁性高硅钢极薄带及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06260321A (ja) * 1993-03-08 1994-09-16 Nippon Steel Corp 微細結晶粒を有するフェライト焼結体およびその製造方法
JP2000178647A (ja) * 1998-12-09 2000-06-27 Nkk Corp 磁束密度が高い高珪素鋼板の製造方法
JP2001254124A (ja) * 2000-03-09 2001-09-18 Nkk Corp 表面性状及び加工性に優れた高けい素鋼板の製造方法
JP2004197125A (ja) * 2002-12-16 2004-07-15 Nippon Steel Corp 軟磁気特性に優れた磁性薄帯およびその製造方法
KR20130007113A (ko) * 2011-06-29 2013-01-18 (주)에이스파워텍 태양열 집광패널의 구동시스템

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61204909A (ja) * 1985-03-08 1986-09-11 Pioneer Electronic Corp 複合型磁性材料
JPH07116513B2 (ja) * 1990-03-12 1995-12-13 日本鋼管株式会社 無方向性電磁鋼板の製造方法
JP3558350B2 (ja) * 1992-11-26 2004-08-25 三井化学株式会社 Ｆｅ基軟磁性合金および製造方法
JP2004247603A (ja) * 2003-02-14 2004-09-02 Minebea Co Ltd ＭｎＺｎ系フェライト電波吸収体
JP2004339031A (ja) * 2003-05-19 2004-12-02 Matsushita Electric Ind Co Ltd 非磁性フェライトおよびそれを用いた積層電子部品
JP2005150130A (ja) * 2003-11-11 2005-06-09 Nippon Steel Corp 電磁波吸収作用をもつ電磁鋼板
JP4787613B2 (ja) * 2005-12-15 2011-10-05 独立行政法人産業技術総合研究所 フェライト被膜付き方向性電磁鋼板
JP2007204817A (ja) * 2006-02-02 2007-08-16 Jfe Steel Kk フェライト被膜付き方向性電磁鋼板
JP2007297232A (ja) * 2006-04-28 2007-11-15 Nec Tokin Corp 酸化物磁性材料の製造方法
KR101149792B1 (ko) * 2009-10-01 2012-06-08 주식회사 포스코 저철손 고자속밀도 방향성 전기강판 및 그 제조방법
KR101449093B1 (ko) * 2011-12-20 2014-10-13 주식회사 포스코 생산성 및 자기적 성질이 우수한 고규소 강판 및 그 제조방법.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06260321A (ja) * 1993-03-08 1994-09-16 Nippon Steel Corp 微細結晶粒を有するフェライト焼結体およびその製造方法
JP2000178647A (ja) * 1998-12-09 2000-06-27 Nkk Corp 磁束密度が高い高珪素鋼板の製造方法
JP2001254124A (ja) * 2000-03-09 2001-09-18 Nkk Corp 表面性状及び加工性に優れた高けい素鋼板の製造方法
JP2004197125A (ja) * 2002-12-16 2004-07-15 Nippon Steel Corp 軟磁気特性に優れた磁性薄帯およびその製造方法
KR20130007113A (ko) * 2011-06-29 2013-01-18 (주)에이스파워텍 태양열 집광패널의 구동시스템

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108575079A (zh) * 2017-03-08 2018-09-25 上海量子绘景电子股份有限公司 电磁屏蔽用复合叠层磁性材料结构及其制备方法
JP2019012777A (ja) * 2017-06-30 2019-01-24 新日鐵住金株式会社 無方向性電磁鋼板およびその製造方法
CN114293089A (zh) * 2021-12-31 2022-04-08 河北科技大学 一种软磁性高硅钢极薄带及其制备方法
CN114293089B (zh) * 2021-12-31 2022-06-21 河北科技大学 一种软磁性高硅钢极薄带及其制备方法

Also Published As

Publication number Publication date
JP2018504518A (ja) 2018-02-15
KR20160068563A (ko) 2016-06-15
JP6523458B2 (ja) 2019-05-29
CN107002208B (zh) 2018-12-11
CN107002208A (zh) 2017-08-01
KR101633611B1 (ko) 2016-06-27

Similar Documents

Publication Publication Date Title
JP6025864B2 (ja) 生産性及び磁気的性質に優れた高珪素鋼板及びその製造方法
KR101407009B1 (ko) 우수한 자성을 갖는 고효율 무방향성 규소강의 제조방법
CN101935800B (zh) 一种高硅钢薄带及其制备方法
WO2020130641A1 (fr) Tôle électrique à grains orientés et procédé pour sa fabrication
WO2016089076A1 (fr) Tôle d'acier à haute teneur en silicium ayant une excellente propriété magnétique et procédé de fabrication correspondant
WO2020111736A2 (fr) Tôle d'acier électrique non orientée et son procédé de production
WO2009091213A1 (fr) Procédé de formation pour texture cubique orientée, et feuille d'acier électrique ainsi produite
JP2639227B2 (ja) 無方向性電磁鋼板の製造方法
KR101536465B1 (ko) 연질 고규소 강판 및 그 제조방법
US11608541B2 (en) Manufacturing method for high silicon grain oriented electrical steel sheet
WO2009091216A2 (fr) Procédé de production de tôle d'acier électrique non orientée et tôle d'acier électrique non orientée produite suivant ledit procédé
WO2020111740A2 (fr) Tôle d'acier électrique et son procédé de fabrication
WO2016039505A1 (fr) Procédé de fabrication de tôle d'acier électrique ayant une texture goss par laminage asymétrique
KR100544584B1 (ko) 저 철손 무방향성 전기강판의 제조방법
JP2004057830A (ja) 磁気共鳴イメージング・システム用の磁極片
WO2020067723A1 (fr) Feuille d'acier électrique non orientée et son procédé de fabrication
JP5200433B2 (ja) ｛１００｝集合組織珪素鋼板の製造方法
KR101642826B1 (ko) 무방향성 전기강판 및 이의 제조방법
US20150017056A1 (en) Soft magnetic metal powder, method for preparing the same, and electronic components including the same as core material
KR101077167B1 (ko) 자성이 우수한 무방향성 전기강판의 제조방법
WO2020111738A2 (fr) Tôle d'acier électrique orientée et son procédé de fabrication
CN110042312A (zh) 一种稀土钇改性的高硅钢板及其制备方法
KR101523079B1 (ko) 규소강판 및 그 제조방법
WO2023121293A1 (fr) Tôle d'acier électrique non orientée et procédé de fabrication associé
WO2021125862A1 (fr) Feuille d'acier électrique non orientée et son procédé de fabrication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15864876

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017529702

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15864876

Country of ref document: EP

Kind code of ref document: A1