Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of the primary coating to the steel sheet is provided. The grain-oriented electrical steel sheet according to the present invention is provided with a base metal steel sheet containing a chemical composition containing, by mass%, C: 0.005% or less, Si: 0.5 to 7.0%, Mn: 0.05 to 1.00%, a total of S and Se: 0.005% or less, sol. Al: 0.005% or less, and N: 0.005% or less and having a balance comprised of Fe and impurities and with a primary coating formed on a surface of the base metal steel sheet and containing Mg2SiO4 as a main constituent, wherein a peak position of Al emission intensity obtained when performing elemental analysis by glow discharge optical emission spectrometry from a surface of the primary coating in a thickness direction of the grain-oriented electrical steel sheet is arranged within a range of 2.0 to 12.0 µm from the surface of the primary coating in the thickness direction, and a number density of Al oxides of a size of 0.1 µm or more in terms of a circle equivalent diameter based on the area at the peak position of Al emission intensity is 0.03 to 0.2/µm2.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of the primary coating to the steel sheet is provided. The grain-oriented electrical steel sheet according to the present invention is provided with a base metal steel sheet containing a chemical composition containing, by mass%, C: 0.005% or less, Si: 0.5 to 7.0%, Mn: 0.05 to 1.00%, a total of S and Se: 0.005% or less, sol. Al: 0.005% or less, and N: 0.005% or less and having a balance comprised of Fe and impurities and with a primary coating formed on a surface of the base metal steel sheet and containing Mg2SiO4 as a main constituent, wherein a peak position of Al emission intensity obtained when performing elemental analysis by glow discharge optical emission spectrometry from a surface of the primary coating in a thickness direction of the grain-oriented electrical steel sheet is arranged within a range of 2.0 to 12.0 µm from the surface of the primary coating in the thickness direction, and a number density of Al oxides of a size of 0.1 µm or more in terms of a circle equivalent diameter based on the area at the peak position of Al emission intensity is 0.03 to 0.2/µm2.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET, AND ANNEALING SEPARATING AGENT USED FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
KORNORIENTIERTES ELEKTROSTAHLBLECH, VERFAHREN ZUR HERSTELLUNG KORNORIENTIERTER MAGNETISCHER STAHLBLECHE UND GLÜHTRENNMITTEL ZUR HERSTELLUNG VON KORNORIENTIERTEM MAGNETISCHEM STAHLBLECH
TÔLE EN ACIER ÉLECTROMAGNÉTIQUE ORIENTÉ AINSI QUE PROCÉDÉ DE FABRICATION DE CELLE-CI, ET AGENT DE SÉPARATION DE RECUIT MIS EN ?UVRE DANS LA FABRICATION DE CETTE TÔLE EN ACIER
YAMAGATA RYUTARO (Autor:in) / TANAKA ICHIRO (Autor:in)
28.09.2022
Patent
Elektronische Ressource
Englisch
IPC:
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
B22F
Verarbeiten von Metallpulver
,
WORKING METALLIC POWDER
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
C22C
Legierungen
,
ALLOYS
/
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
/
H01F
MAGNETS
,
Magnete
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022