Title:
MAGNETIC STEEL SHEET WITH INSULATION FILM
Document Type and Number:
Japanese Patent JP2005015838
Kind Code:
A
Abstract:
To provide a magnetic steel sheet with chromium-free insulation film excellent in powdering resistance and scratch resistance after annealing for removing the strain.
The magnetic steel sheet with insulation film excellent in the powdering resistance contains ≥40 mass% the total content of an Al compound and Si compound in terms of Al2O3 and SiO2 respectively and 40-95 mass% of the ratio of the Al compound in the Al compound and the Si compound and in terms of Al2O3/(Al2O3+SiO2) further, contains resin at <50% in terms of the resin solid content/(Al2O3+SiO2+resin solid content). In the insulation film, the resin can be contained. The sheet applying the annealing for removing the strain has excellent scratch resistance.
Inventors:
SASHI KAZUMICHI
KOMORI YUKA
KONO MASAKI
KOMORI YUKA
KONO MASAKI
Application Number:
JP2003180982A
Publication Date:
January 20, 2005
Filing Date:
June 25, 2003
Export Citation:
Assignee:
JFE STEEL KK
International Classes:
C23C22/00; H01F1/18; (IPC1-7): C23C22/00; H01F1/18
Attorney, Agent or Firm:
Nozomi Watanabe
Haruko Sanwa
Haruko Sanwa