Title:
GRAIN ORIENTED SILICON STEEL SHEET FOR LOW NOISE TRANSFORMER
Document Type and Number:
Japanese Patent JP3500102
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a grain oriented silicon steel sheet for a low noise transformer capable of reducing higher harmonics, which has louder audibility for human beings, and capable of effectively reducing noise.
SOLUTION: In this grain oriented silicon steel sheet for a low noise transformer, magnetostiction λ19 (the difference in the shape between the case in which magnetic flux density is 1.9T and the case in which magnetic flux density is 0T. and so forth) is 1.5×10-6 or less, also -0.3×10-6≤λ17-λ19×(1.7/1.9)2≤+0.3×10-6, and also, -0.3×10-6≤λ19×(1.4/1.9)2≤+0.3×10-6 are satisfied.
Inventors:
Hisashi Motegi
Kimihiko Sugiyama
Atsushi Tanaka
Masato Mizoue
Masahiro Fujikura
Kimihiko Sugiyama
Atsushi Tanaka
Masato Mizoue
Masahiro Fujikura
Application Number:
JP36816299A
Publication Date:
February 23, 2004
Filing Date:
December 24, 1999
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
H01F1/16; C22C38/00; (IPC1-7): C22C38/00; H01F1/16
Other References:
【文献】茂木尚,熊野知二,交流磁気ひずみヒステリシスに対する被膜張力の影響,第23回 日本応用磁気学会学術講演概要集,日本,社団法人 日本応用磁気学会,1999年10月 5日,p.333
【文献】茂木尚,熊野知二,交流磁気ひずみヒステリシスに対する被膜張力の影響,第23回 日本応用磁気学会学術講演概要集,日本,社団法人 日本応用磁気学会,1999年10月 5日,p.334
【文献】茂木尚,熊野知二,交流磁気ひずみヒステリシスに対する被膜張力の影響,第23回 日本応用磁気学会学術講演概要集,日本,社団法人 日本応用磁気学会,1999年10月 5日,p.334
Attorney, Agent or Firm:
Takashi Ishida (2 outside)
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