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1. WO2012079790 - METHOD FOR PRODUCING A GRAIN-ORIENTED ELECTRIC STRIP

Publication Number WO/2012/079790
Publication Date 21.06.2012
International Application No. PCT/EP2011/066423
International Filing Date 21.09.2011
IPC
C23C 22/74 2006.01
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
73characterised by the process
74for obtaining burned-in conversion coatings
H01F 1/147 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01of inorganic materials
03characterised by their coercivity
12of soft-magnetic materials
14metals or alloys
147Alloys characterised by their composition
C21D 8/12 2006.01
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
C04B 28/34 2006.01
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
34containing cold phosphate binders
CPC
C04B 2111/00517
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2111Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
00474Uses not provided for elsewhere in C04B2111/00
00482Coating or impregnation materials
00517for masonry
C04B 28/346
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
34containing cold phosphate binders
346the phosphate binder being present in the starting composition as a mixture of free acid and one or more phosphates
C21D 8/1283
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING 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
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1277involving a particular surface treatment
1283Application of a separating or insulating coating
C21D 8/1288
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
DMODIFYING 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
8Modifying the physical properties by deformation combined with, or followed by, heat treatment
12during manufacturing of articles with special electromagnetic properties
1277involving a particular surface treatment
1288Application of a tension-inducing coating
C23C 22/74
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
73characterised by the process
74for obtaining burned-in conversion coatings
C23C 2222/10
CCHEMISTRY; METALLURGY
23COATING 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
CCOATING 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
2222Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
10Use of solutions containing trivalent chromium but free of hexavalent chromium
Applicants
  • THYSSENKRUPP ELECTRICAL STEEL GMBH [DE]/[DE] (AllExceptUS)
  • HOLZAPFEL, Christof [DE]/[DE] (UsOnly)
  • PAHLKE, Stefan [DE]/[DE] (UsOnly)
  • SCHEPERS, Carsten [DE]/[DE] (UsOnly)
  • SCHRAPERS, Heiner [DE]/[DE] (UsOnly)
Inventors
  • HOLZAPFEL, Christof
  • PAHLKE, Stefan
  • SCHEPERS, Carsten
  • SCHRAPERS, Heiner
Agents
  • COHAUSZ & FLORACK
Priority Data
10 2010 054 509.014.12.2010DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR HERSTELLUNG EINES KORNORIENTIERTEN ELEKTROBANDS
(EN) METHOD FOR PRODUCING A GRAIN-ORIENTED ELECTRIC STRIP
(FR) PROCÉDÉ DE FABRICATION D'UNE BANDE ÉLECTRIQUE À GRAINS ORIENTÉS
Abstract
(DE)
Die Erfindung betrifft ein Verfahren zur Herstellung eines mit einer Phosphatschicht belegten kornorientierten Elektrobands, in dem auf das Elektroband eine Phosphatlösung aufgebracht wird, die eine kolloide Komponente, sowie mindestens einen Kolloidstabilisator (A), und/oder mindestens einen Beizinhibitor (B) enthält, wobei die Phosphatlösung mindestens eine Verbindung, die Chrom in der Oxidationsstufe III aufweist (Chrom ( III ) -Verbindung), enthält. Mit dem erfindungsgemäßen Verfahren hergestelltes kornorientiertes Elektroband zeichnet sich durch hervorragende optische Eigenschaften und eine hohe Zugspannung aus.
(EN)
The invention relates to a method for producing a grain-oriented electric strip coated with a phosphate layer, in that a phosphate solution comprising a colloid component and at least one colloid stabilizer (A), and/or at least one etching inhibitor (B) is applied to the electric strip, wherein the phosphate solution comprises at least one compound comprising chromium at the oxidation level III (Chromium (III) compounds). Grain-oriented electric strips produced by means of the method according to the invention are characterized by excellent optical properties and high tensile stress.
(FR)
L'invention concerne un procédé de fabrication d'une bande électrique à grains orientés garnie d'une couche de phosphate, dans lequel sur la bande électrique, une solution de phosphate est amenée, laquelle contient un composant colloïdal, ainsi qu'au moins un stabilisateur de colloïde (A) et/ou au moins un inhibiteur de corrosion (B), la solution de phosphate contenant au moins un composé, qui comprend du chrome dans l'état d'oxydation III (composé de chrome (III)). La bande électrique à grains orientés fabriquée par le procédé selon l'invention se distingue par d'excellentes propriétés optiques et une tension élevée.
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