Spherical graphite cast iron semi-solid casting method and semi-solid cast product

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United States of America Patent

PATENT NO 11920205
APP PUB NO 20220275467A1
SERIAL NO

17664429

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Abstract

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The present invention provides a casting method and cast product of spherical graphite cast iron, in which, even with a small modulus, there is no chill, the spherical graphite in the tissue is further made ultrafine, the dispersion of the particle diameter is small, and the number of the particles is several times that of the conventional one in the as cast state where heat treatment is not carried out. A casting method of a spherical graphite cast iron includes a melting process, a spheroidizing treatment process, an inoculation process, and a casting process, in which the original molten metal after the inoculation process is poured and filled up to a product space through a gate of a metal mold; where the original molten metal is controlled to a semi-solidification temperature range, before being filled up to the product space.

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Patent Owner(s)

Patent OwnerAddress
UNIV TOHOKUTOKYO JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adachi, Mitsuru Miyagi, JP 20 196
Itamura, Masayuki Miyagi, JP 15 65
Itofuji, Haruki Miyagi, JP 6 0

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