Metallurgical flux compositions

Details Metallurgical flux compositions Metallurgical flux compositions

1990-04-24

1991-07-02

Andrews, Melvin J.

Specialized metallurgical processes, compositions for use therei

Compositions

Solid treating composition for liquid metal or charge

75329, 106 3827, 106 3828, 164473, C22B 910

Patent

active

050282573

ABSTRACT:
A metallurgical flux composition comprising calcium oxide, alumina, magnesium oxide and silica contains 22-35% by weight magnesium oxide and has a weight ratio of calcium oxide to magnesium oxide of from 0.6:1 to 2.5:1. The preferred composition contains 28-42% by weight calcium oxide, 13-21% by weight alumina, 22-35% by weight magnesium oxide and 3-8% by weight silica, preferably has a calcium oxide to magnesium oxide weight ratio of from 0.8:1 to 1.9:1 and preferably has a calcium oxide to silica weight ratio of from 6.0:1 to 7.5:1. The flux composition is particularly useful as a tundish cover in the continuous casting of steel.

REFERENCES:
patent: 4102690 (1978-07-01), Koper
patent: 4417924 (1983-11-01), Schwer

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