Title:
HEAT-RESISTANT CAST IRON TYPE METALLIC SHORT FIBER, AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/145194
Kind Code:
A1
Abstract:
Disclosed are: a heat-resistant cast iron type metallic short fiber which can be used in a composite material to improve heat resistance, seize resistance, oxidation resistance, high-temperature strength or abrasion resistance of the composite material, is homogeneous and therefore has little variations in size, has excellent cutting properties suitable for cutting by chatter vibration cutting processes and excellent round bar casting properties, and can be provided at relatively low cost; and a process for producing the cast iron type metallic short fiber.
The heat-resistant cast iron type metallic short fiber has the following chemical composition (in wt%): 1.0 to 2.5% of C, 2.0 to 6.0% of Si, 0.01 to 4.0% of Al (wherein the sum total of Si and Al is 3.0 to 7.0%), 0.1 to 1.0% of Mn, and at least one of Mg and Ca in an amount of 0.003 to 0.1%, with the remainder being Fe. The metallic short fiber has a spherical graphite cast iron structure which has spherical graphite dispersed therein, and is cut by a chatter vibration cutting process.
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Inventors:
Yagi, Tetsuya (12 Kanbecho 3-chome, Otsu-ku, Himeji-sh, Hyogo 32, 〒6711132, JP)
八木 哲也 (〒32 兵庫県姫路市大津区勘兵衛町３丁目１２番地 虹技株式会社内 Hyogo, 〒6711132, JP)
八木 哲也 (〒32 兵庫県姫路市大津区勘兵衛町３丁目１２番地 虹技株式会社内 Hyogo, 〒6711132, JP)
Application Number:
JP2010/058530
Publication Date:
November 24, 2011
Filing Date:
May 20, 2010
Export Citation:
Assignee:
KOGI CORPORATION (1 Kanbecho 4-chome, Otsu-ku Himeji-sh, Hyogo 32, 〒6711132, JP)
虹技株式会社 (〒32 兵庫県姫路市大津区勘兵衛町４丁目１番地 Hyogo, 〒6711132, JP)
Yagi, Tetsuya (12 Kanbecho 3-chome, Otsu-ku, Himeji-sh, Hyogo 32, 〒6711132, JP)
虹技株式会社 (〒32 兵庫県姫路市大津区勘兵衛町４丁目１番地 Hyogo, 〒6711132, JP)
Yagi, Tetsuya (12 Kanbecho 3-chome, Otsu-ku, Himeji-sh, Hyogo 32, 〒6711132, JP)
International Classes:
B22F1/00; B22F9/04; C22C37/04
Attorney, Agent or Firm:
MUROTA, Rikio (8F. Sankyoseiko-Sukai Bldg, 101 Edomachi, Chuo-ku, Kobe-sh, Hyogo 33, 〒6500033, JP)
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Claims: