Mold additives for use in continuous casting

Details Mold additives for use in continuous casting Mold additives for use in continuous casting

1987-11-05

1989-02-21

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Molds and mold coating compositions

106 3827, 106 3828, 75 96, 501 57, 164123, B28B 736, C03C 3112

Patent

active

048061638

ABSTRACT:
A mold additive for use in continuous casting, which includes a base material having a chemical composition of CaO--BaO--SiO.sub.2 --F system, and contains 2-15% by weight in total of at least one carbonate of alkali and alkaline earth metals, 2-30% by weight in total of at least one fluoride of alkali and alkaline earth metals and 0.2-10% by weight of carbon, and, if necessary, 2-10% by weight in total of at least one oxide of Fe, Mn and Ni, and has a solidification temperature of not more than 900.degree. C. and a viscosity at 1,300.degree. C. of not more than 3 poises. The base material has a weight ratio of (CaO+BaO)/SiO.sub.2 of 0.6-2.5 and contains not less than 2% by weight of BaO and 2-15% by weight of F.

REFERENCES:
patent: 3899324 (1975-08-01), Corbett
patent: 3926246 (1975-12-01), Corbett et al.
patent: 3964916 (1976-06-01), Armistead et al.
patent: 4190444 (1980-02-01), Carini
patent: 4303120 (1981-12-01), Carini
patent: 4340426 (1982-07-01), Tabei et al.
Abstract: Jap Patent 54-87,625 Jul. 12, 1979.
Abstract: Jap Patent 49-87,515 Aug. 21, 1974.

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