Refractory for casting, nozzle for casting and sliding nozzle plate using same

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United States of America Patent

PATENT NO 9815741
SERIAL NO

15128265

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Abstract

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A refractory to be used repeatedly or for a long period of time, such as a refractory for casting, especially a nozzle for casting and an SN plate, has improved tolerance. The refractory for casting contains Al4O4C in the range of 15 to 60% by mass, both inclusive, an Al component as a metal in the range of 1.2 to 10.0% by mass, both inclusive, and a balance including Al2O3, a free C, and other refractory component; a sum of Al4O4C, Al2O3, and the Al component as a metal is 85% or more by mass; and a content of Al4O4C (Al4O4C), a content of the Al component as a metal (Al), and a content of the free carbon (C). The contact of the free carbon satisfies the following Equation 1 and Equation 2:

description='In-line Formulae' end='lead'1.0≦C/(Al4O4C×0.038+Al×0.33) (Equation 1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'anddescription='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'1.0≧C/(Al4O4C×0.13+Al×0.67) (Equation 2).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
KROSAKIHARIMA CORPORATION1-1 HIGASHIHAMA-MACHI YAHATANISHI-KU KITAKYUSHU-SHI FUKUOKA 8068586 ?8068586

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akamine, Keiichiro Fukuoka, JP 6 35
Ito, Kazuo Fukuoka, JP 60 847
Makino, Taro Fukuoka, JP 3 3

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