A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GRAIN-ORIENTED MAGNETIC STEEL SHEET, ANNEALING SEPARATING AGENT, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of a primary coating to a base steel sheet, an annealing separator utilized for manufacture of grain-oriented electrical steel sheet, and a method for manufacturing grain-oriented electrical steel sheet are proposed. The grain-oriented electrical steel sheet is provided with a base metal steel sheet containing comprising a predetermined chemical composition and a primary coating formed on a surface of the base steel sheet and comprising Mg2SiO4 as a main constituent. The primary coating satisfies the conditions of (1) the number density D3 of the Al concentrated region: 0.020 to 0.180/µm2, (2) (total area S5 of regions which is anchoring oxide layer regions and is also Al concentrated regions)/(total area S3 of Al concentrated regions)≥33%, (3) distance H5 of mean value of length in thickness direction of regions which is anchoring oxide layer regions and is also Al concentrated regions minus H0: 0.4 to 4.0 µm, (4) (total area S1 of anchoring oxide layer regions)/(observed area S0)>15%.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, ANNEALING SEPARATING AGENT, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of a primary coating to a base steel sheet, an annealing separator utilized for manufacture of grain-oriented electrical steel sheet, and a method for manufacturing grain-oriented electrical steel sheet are proposed. The grain-oriented electrical steel sheet is provided with a base metal steel sheet containing comprising a predetermined chemical composition and a primary coating formed on a surface of the base steel sheet and comprising Mg2SiO4 as a main constituent. The primary coating satisfies the conditions of (1) the number density D3 of the Al concentrated region: 0.020 to 0.180/µm2, (2) (total area S5 of regions which is anchoring oxide layer regions and is also Al concentrated regions)/(total area S3 of Al concentrated regions)≥33%, (3) distance H5 of mean value of length in thickness direction of regions which is anchoring oxide layer regions and is also Al concentrated regions minus H0: 0.4 to 4.0 µm, (4) (total area S1 of anchoring oxide layer regions)/(observed area S0)>15%.
GRAIN-ORIENTED MAGNETIC STEEL SHEET, ANNEALING SEPARATING AGENT, AND METHOD FOR MANUFACTURING GRAIN-ORIENTED MAGNETIC STEEL SHEET
KORNORIENTIERTES ELEKTROSTAHLBLECH, GLÜHTRENNMITTEL UND VERFAHREN ZUR HERSTELLUNG EINES KORNORIENTIERTEN MAGNETISCHEN STAHLBLECHS
TÔLE EN ACIER ÉLECTROMAGNÉTIQUE ORIENTÉ AINSI QUE PROCÉDÉ DE FABRICATION DE CELLE-CI, ET AGENT DE SÉPARATION DE RECUIT
YAMAGATA RYUTARO (author) / MORISHIGE NOBUSATO (author) / TANAKA ICHIRO (author)
2022-09-28
Patent
Electronic Resource
English
IPC:
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
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