Flake graphite cast iron and production method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8956565
APP PUB NO 20100239451A1
SERIAL NO

12666670

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Abstract

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The invention provides a flake graphite cast iron being highly strong and excellent in workability such as cutting performance, which is suitable for use, for example, in internal combustion engine parts and the like, and a production method thereof without using a misch metal. Specifically, the flake graphite cast iron according to the invention includes an A-type graphite with a uniformly and disorderly distributed existence form without directionality; and has a chemical composition containing 2.8 to 4.0 mass % of C, 1.2 to 3.0 mass % of Si, 1.1 to 3.0 mass % of Mn, 0.01 to 0.6 mass % of P, 0.01 to 0.30 mass % of S and the remainder being Fe and inevitable impurities, wherein the ratio (Mn/S) of the Mn content to the S content is within a range of 3 to 300.

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Patent Owner(s)

Patent OwnerAddress
NIPPON PISTON RING CO LTD12-10 HONMACHI-HIGASHI 5-CHOME CHUO-KU SAITAMA-SHI SAITAMA 338-8503
INCORPORATED NATIONAL UNIVERSITY IWATE UNIVERSITYMORIOKA-SHI IWATE 020-8550

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Horie, Hiroshi Morioka, JP 47 684
Ishikawa, Yoshiki Saitama, JP 28 187
Kowata, Toshinori Morioka, JP 3 6

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