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Title:
Fe-BASE AMORPHOUS ALLOY THIN STRIP OF EXCELLENT SOFT MAGNETIC CHARACTERISTIC, IRON CORE PRODUCED THEREFROM AND MASTER ALLOY FOR QUENCH SOLIDIFICATION THIN STRIP PRODUCTION FOR USE THEREIN
Document Type and Number:
WIPO Patent Application WO/2003/085150
Kind Code:
A1
Abstract:
An Fe-base amorphous alloy thin strip of excellent soft magnetic characteristics; an iron core produced therefrom; and a master alloy for thin strip production through quench solidification for use therein. Molten metal is injected through an injection nozzle having a slotted opening onto a moving coolant substrate and quench solidified into a metal thin strip. The Fe-base amorphous alloy thin strip is characterized in that an extremely thin oxide layer of 5 to 20 nm thickness is disposed on a thin strip surface on at least one side of an amorphous parent phase containing 0.2 to 12 atomic% of P.

Inventors:
Sakamoto, Hiroaki (C/O NIPPON STEEL CORPORATION Technical Development Bureau 20-1, Shintomi Futtsu-shi, Chiba, 293-8511, JP)
Sato, Yuichi (C/O NIPPON STEEL CORPORATION Technical Development Bureau 20-1, Shintomi Futtsu-shi, Chiba, 293-8511, JP)
Application Number:
PCT/JP2003/004089
Publication Date:
October 16, 2003
Filing Date:
March 31, 2003
Export Citation:
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Assignee:
NIPPON STEEL CORPORATION (6-3 Otemachi 2-chome Chiyoda-ku, Tokyo, Tokyo, 100-8071, JP)
Sakamoto, Hiroaki (C/O NIPPON STEEL CORPORATION Technical Development Bureau 20-1, Shintomi Futtsu-shi, Chiba, 293-8511, JP)
Sato, Yuichi (C/O NIPPON STEEL CORPORATION Technical Development Bureau 20-1, Shintomi Futtsu-shi, Chiba, 293-8511, JP)
International Classes:
C22C33/00; C22C38/00; C22C45/02; H01F1/153; H01F41/02; (IPC1-7): C22C45/02
Foreign References:
JP2000313946A2000-11-14
JPH04329846A1992-11-18
JP2000054089A2000-02-22
US6416879B12002-07-09
Attorney, Agent or Firm:
Ishida, Takashi (A. AOKI, ISHIDA & ASSOCIATES Toranomon 37 Mori Bldg. 5-1 Toranomon 3-chome Minato-ku, Tokyo, 105-8423, JP)
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