Title:
STEEL PLATE HAVING EXCELLENT FINE BLANKING PROCESSABILITY AND METHOD FOR MANUFACTURE THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/116599
Kind Code:
A1
Abstract:
Disclosed are: a steel plate excellent in FB processability as well as molding
processability after the FB processing; and a method for manufacture of the steel
plate. The steel plate is characterized by having the following chemical composition
(by mass): C: 0.1-0.5%; Si: 0.5% or less; and Mn: 0.2-1.5%; with the contents of
P and S being adjusted within proper ranges, and has a tissue composed of ferrite
having an average particle diameter of 10 to 20 μm (exclusive) and a carbide
contained in the ferrite particle and having an average particle diameter of
0.3 to 1.5 μm. The steel plate is excellent in FB processability, die life,
and processability after the FB processing (a side bend elongation property).
More Like This:
Inventors:
KARIYA, Nobusuke (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
仮屋房亮 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YOKOTA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
横田毅 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
仮屋房亮 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YOKOTA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
横田毅 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
Application Number:
JP2007/051843
Publication Date:
October 18, 2007
Filing Date:
January 29, 2007
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 1000011, JP)
JFEスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 1000011, JP)
KARIYA, Nobusuke (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
仮屋房亮 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YOKOTA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
JFEスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 1000011, JP)
KARIYA, Nobusuke (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
仮屋房亮 (〒11 東京都千代田区内幸町二丁目２番３号JFEスチール株式会社 知的財産部内 Tokyo, 1000011, JP)
YOKOTA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 1000011, JP)
International Classes:
C22C38/00; C21D9/46
Attorney, Agent or Firm:
OCHIAI, Kenichiro (7th floor Yanagiya building.1-10, Nihonbashi 2-chome,Chuo-k, Tokyo 27, 1030027, JP)
Download PDF:
Previous Patent: METHOD OF LOW-TEMPERATURE HEAT TREATMENT OF WASTE AND APPARATUS THEREFOR
Next Patent: IMAGE DECODING DEVICE AND ITS METHOD
Next Patent: IMAGE DECODING DEVICE AND ITS METHOD