Magnesium treatment process and apparatus for carrying out this

Details Magnesium treatment process and apparatus for carrying out this Magnesium treatment process and apparatus for carrying out this

1990-11-28

1992-03-24

Rosenberg, Peter D.

Alloys or metallic compositions

Ferrous

1.7 percent or more carbon containing

420 19, 420 21, C22C 3308

Patent

active

050986511

ABSTRACT:
A magnesium treatment process is proposed for the production of a treated iron melt containing less than 100 grams per ton non-metallic inclusions. The treatment reaction is so arranged that the magnesium is introduced into the melt from a chamber at a depth of at least 200 mm below the surface of the melt. Thus, the quantity of vaporized magnesium produces a mixing energy of at least 1,000 W/m.sup.3, which ensures the necessary elimination of non-metallic inclusions. The surface of the molten mass is covered by a non-oxidizing, preferably a reducing atmosphere.

REFERENCES:
patent: 2776206 (1957-01-01), Klingbeil
patent: 3295960 (1967-01-01), Parlee
patent: 3367646 (1968-02-01), Robertson
patent: 3666449 (1972-05-01), Alt
patent: 3955974 (1976-05-01), Alt
patent: 3999984 (1976-12-01), Kawai

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