EP2756106A1 - Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe - Google Patents

Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe

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Publication number
EP2756106A1
EP2756106A1 EP12759723.5A EP12759723A EP2756106A1 EP 2756106 A1 EP2756106 A1 EP 2756106A1 EP 12759723 A EP12759723 A EP 12759723A EP 2756106 A1 EP2756106 A1 EP 2756106A1
Authority
EP
European Patent Office
Prior art keywords
mass
mpa
thickness
strength
electrical
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP12759723.5A
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German (de)
English (en)
Inventor
Franz Dorninger
Roman Sonnleitner
Herbert Kreuzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voestalpine Stahl GmbH
Original Assignee
Voestalpine Stahl GmbH
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Filing date
Publication date
Application filed by Voestalpine Stahl GmbH filed Critical Voestalpine Stahl GmbH
Publication of EP2756106A1 publication Critical patent/EP2756106A1/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1272—Final recrystallisation annealing
    • 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
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
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    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation
    • C—CHEMISTRY; METALLURGY
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    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • C—CHEMISTRY; METALLURGY
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
    • C—CHEMISTRY; METALLURGY
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C—CHEMISTRY; METALLURGY
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
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    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6408—Fluorescence; Phosphorescence with measurement of decay time, time resolved fluorescence
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49012—Rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor

Definitions

  • the invention relates to a high-strength electrical tape with high polarization and a method for producing the high-strength electrical tape with high polarization and its use.
  • Stator and rotor packages of electric motors and generators as well as disk packs of transformers are made of so-called electrical steel.
  • Electrical steel is a strip steel sheet, for example, with thicknesses between 0.1 mm and 2 mm.
  • This strip steel sheet is punched into the required shapes and from the individual stamped components, the corresponding packages are assembled, which are then processed to fer ⁇ term electric motors, generators or transformers.
  • both the rotor and the stator parts are usually punched out of the same sheet in order to reduce the waste, and therefore have the same properties.
  • an iron core (packetized sheet) used in a coil is determined by its ferromagnetic properties which are preset by the steel manufacturer, or at least to the extent be Prepared ⁇ tet that they are adjusted by a final annealing at the user, the permeability and thus increases the magnetic flux density in the coil. As a result, the number of turns can be reduced in order to achieve a required inductance.
  • the iron of the core is an electrical conductor, in a coil of iron core through which alternating current flows, a current flows in a quasi-shorted winding called eddy current. This eddy current is reduced when the core is not made of a piece of iron but from a stack of iron sheets already described.
  • the most important selection criterion for the core material is the usable polarization, ie the highest possible induction at a given field strength should be present.
  • the core loss is a decision ⁇ the criterion.
  • Such electrical bands are made of a relatively soft steel material. Particularly in engine and generator, it is interesting to reduce the air gaps for manufacturers on the one hand, because this increases the magnetic efficiency to ⁇ the other hand, occur especially at very high speed rotating Mo ⁇ motors and generators in particular extremely high centrifugal forces. Especially with generators, the rotors can be relatively large, so that in the moving masses very high centrifugal forces may occur. On the one hand, these very high centrifugal forces cause stretching to take place, so that very narrow air gaps are difficult to realize; on the other hand, the high centrifugal forces can also lead to a failure of the rotor material.
  • the object of the invention is to provide a high-strength electrical steel, which in addition to a high strength has very good magnetic properties and in comparison to high Si or high Al alloyed electrical steel high polarization values.
  • the object is achieved with an electrical steel with the features of claim 1.
  • Advantageous developments are characterized in the dependent claims. It is one another object to provide a method for producing a tape. The object is achieved by a method with the Merkma ⁇ len of claim 9.
  • Advantageous developments are characterized in the dependent claims.
  • Roe (transverse to the rolling direction): 400 MPa - 650 MPa, in particular 420 - 620 MPa
  • Rm (transverse to the rolling direction): 500 MPa - 700 MPa, in particular 520 to 650 MPa
  • the polarization at 5000 A / m (J50) should achieve the following minimum value irrespective of the thickness of the material and of the strength:
  • Thickness 0, 65 mm: 3 ⁇ P15 ⁇ 8 W / kg
  • Thickness 1 mm 4.5 ⁇ P15 ⁇ 12 W / kg
  • the solidification mechanism in the invention is based on the so-called solid solution hardening.
  • silicon is used for the solid solution hardening, but the hardness effect of the silicon is limited and is about +70 MPa per added mass% silicon. The effect is achieved in that sit in the cubic body centered grid of a fully ferritic electrical steel, the silicon atoms on Git ⁇ ter, ie substituting iron.
  • an alloying concept with phosphorus is preferred according to the invention, whose solid solution strengthening effect per added mass% phosphorus is significantly higher than that of silicon or aluminum. While alloying of silicon and aluminum has the advantage that by increasing the resistivity decrease the hysteresis losses, which brings a positive effect on the magnetic properties, but at the same time decrease the polarization values and thus the magneti ⁇ rule properties deteriorate.
  • alloying of silicon and aluminum has the advantage that by increasing the resistivity decrease the hysteresis losses, which brings a positive effect on the magnetic properties, but at the same time decrease the polarization values and thus the magneti ⁇ rule properties deteriorate.
  • Varia ⁇ tion of the elements silicon, aluminum, manganese and phosphorus have shown that only the addition of phosphorus increases both the strength values, lowering the core loss and does not adversely affect the polarizations.
  • the prediction formula is valid if the influencing variables fulfill the following conditions:
  • the forecast formula is valid, fulfill if the predictors follow ⁇ de conditions:
  • J50 (mT) 1.886 + C * I, 57 - Si * 0.021 - Mn * 0.046 - Al * 0.022 + P * 0.003 - T * 139 * 10-6
  • the forecast formula is valid, fulfill if the predictors follow ⁇ de conditions:
  • the formula is in the above ranges within the tolerances for the individual influencing variables for material in a thickness of 0.5 mm applicable, but is not suitable for material deviate ⁇ chender thickness (z. B. 0.35 mm or 0.65 mm) be used with the same coefficients. However, a rough estimate of the influence of the individual alloying elements is permissible.
  • the formula is within the tolerances for the individual sizes for material in thickness in the above ranges 0.5 mm, but can not be used with material of different thickness (eg 0.35 mm or 0.65 mm) with the same coefficients. However, a rough estimate of the influence of the individual alloying elements is permissible.
  • Phosphorus is known as an element which segregates to the grain boundaries that predominantly ⁇ and thereby weaken the grain boundaries, thus leading to the grain boundary fracture. But the sedentary primarily at the grain boundaries dissolved carbon prevents that Phos ⁇ phor weakens the grain boundaries. This effect leads to a surprisingly good ductility.
  • the inventive combination of silicon, aluminum and phosphorus the skilled person would usually expect a high brittleness, which surprisingly does not occur.
  • the positi ve ⁇ effect of phosphorus to lower the eddy current loss is known. In the invention it has been found that it is advantageous to work with an increased reel temperature, in particular between approximately 600 ° C to 750 ° C.
  • an electrical steel strip is adjusted so that the limits of the following elements are met:
  • the carbon content is ⁇ 0.005 mass%, silicon 2.2 mass% - 2.6 mass%, manganese 0.4 mass% - 0.6 mass%, phosphorus 0.14 mass% - 0, 19 mass%, sulfur ⁇ 0.008 mass%, aluminum 0.9 mass% - 1.3 mass%, stick material ⁇ ⁇ 0.0070 mass%, titanium ⁇ 0.005 mass%, vanadium ⁇ 0.01 mass%, chromium ⁇ 0.05 mass%, niobium ⁇ 0.02 mass% and molybdenum ⁇ 0.01 mass%, remainder: incidental impurities ⁇ units. Concerning some elements or impurities, the following values are sought:
  • J50 reaches a value> 1.65 T regardless of the strip thickness in the range between 0.2 mm and 1.5 mm, in particular between 0, 3 mm and 1 mm)
  • the core losses are dependent on the Blechdi ⁇ bridge, there may be exemplified the following common thicknesses will follow ⁇ so specified for all ranges of strength:
  • Thickness 0, 65 mm: 3 ⁇ P15 ⁇ 8 W / kg
  • Thickness 1 mm 4.5 ⁇ P15 ⁇ 12 W / kg
  • the invention relates to a high-strength electrical tape, wherein the electrical steel strip consists of a steel alloy, wherein the limits of the following elements are met:
  • the invention is exemplified erläu ⁇ tert reference to a drawing. It shows:
  • FIG. 1 shows a micrograph of a steel strip which is not in accordance with the invention and has a thickness of 0.5 mm;
  • FIG. 2 shows a band according to the invention with a thickness of 0.65 mm
  • Figure 3 a non-inventive tape having a thickness of
  • band 1 has a high silicon content and was annealed at 970 ° C. It has a rough structure.
  • the tape 4 of the invention shown in Figure 2 has a thickness of 0.65 mm has a very high phosphorus content and is annealed at 850 ° C. It has a fine-grained, fully rekris ⁇ tallillones structure.
  • Figure 3 shows the electrical steel strip number 5 from the examples which is not according to the invention, in a thickness of
  • J50 polarization at a field strength of 5,000 A / m
  • the examples refer to 3 different material thicknesses (0.35 mm, 0.5 mm and 0.65 mm) in different strength levels.
  • the hot strip is cold-rolled strip to a cold rolling process continu ously ⁇ rolled to a cold-rolled strip thickness of 0.5 mm. Subsequently ⁇ touchedd the material on a continuous hereglüh- aggregate was annealed at a meltglühtemperatur s of 970 ° C for 60 seconds. Two tapes with different analysis concept were produced: Volume 1 with increased silicon content, Volume 2 with increased phosphorus content:
  • the hot strip is cold-rolled strip to a cold rolling process continu ously ⁇ rolled to a cold strip thickness of 0.65 mm. On closing ⁇ the material was at a continuous
  • the hot strip is cold-rolled strip to a cold rolling process continu ously ⁇ rolled to a cold strip thickness of 0.35 mm. On closing ⁇ the material was at a continuous

Abstract

L'invention concerne une bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, la bande magnétique étant constituée d'un alliage d'acier, les limites des éléments suivants étant respectées: Mn 0,35 % en masse - 0,65 % en masse, Si 2,0 % en masse - 3,0 % en masse, Al 0,8 % en masse - 1,4 % en masse, P 0,14 % en masse - 0,24 % en masse. L'invention concerne également un procédé de production.
EP12759723.5A 2011-09-16 2012-09-17 Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe Withdrawn EP2756106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011053723 2011-09-16
PCT/EP2012/068276 WO2013038020A1 (fr) 2011-09-16 2012-09-17 Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe

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EP2756106A1 true EP2756106A1 (fr) 2014-07-23

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US (1) US20140373340A1 (fr)
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JP6515323B2 (ja) * 2015-02-06 2019-05-22 日本製鉄株式会社 無方向性電磁鋼板
JP6476979B2 (ja) * 2015-02-19 2019-03-06 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
JP6658150B2 (ja) * 2016-03-16 2020-03-04 日本製鉄株式会社 電磁鋼板
DE102018201618A1 (de) 2018-02-02 2019-08-08 Thyssenkrupp Ag Nachglühfähiges, aber nicht nachglühpflichtiges Elektroband
CN112430775A (zh) * 2019-08-26 2021-03-02 宝山钢铁股份有限公司 一种磁性能优良的高强度无取向电工钢板及其制造方法
KR20220107038A (ko) * 2020-02-20 2022-08-01 닛폰세이테츠 가부시키가이샤 무방향성 전자 강판용 열연 강판
US20230013043A1 (en) * 2020-02-20 2023-01-19 Nippon Steel Corporation Hot-rolled steel sheet for non-oriented electromagnetic steel sheets
JP7231115B2 (ja) * 2021-03-31 2023-03-01 日本製鉄株式会社 無方向性電磁鋼板、無方向性電磁鋼板の製造方法、電動機および電動機の製造方法
WO2023282195A1 (fr) * 2021-07-08 2023-01-12 Ｊｆｅスチール株式会社 Tôle d'acier électromagnétique à grains non orientés et son procédé de fabrication
KR20240005830A (ko) * 2021-07-08 2024-01-12 제이에프이 스틸 가부시키가이샤 무방향성 전자 강판 및 그의 제조 방법, 그리고 모터 코어
JP7235188B1 (ja) * 2021-07-08 2023-03-08 Ｊｆｅスチール株式会社 無方向性電磁鋼板およびその製造方法
WO2023282197A1 (fr) * 2021-07-08 2023-01-12 Ｊｆｅスチール株式会社 Tôle d'acier électromagnétique non orientée, son procédé de fabrication et noyau de moteur
WO2024089827A1 (fr) * 2022-10-26 2024-05-02 Ｊｆｅスチール株式会社 Tôle d'acier électromagnétique non orientée et son procédé de production, et noyau de moteur
WO2024089828A1 (fr) * 2022-10-26 2024-05-02 Ｊｆｅスチール株式会社 Feuille d'acier électromagnétique non orientée et son procédé de fabrication

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US20140373340A1 (en) 2014-12-25
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