Process for treating molten cast iron in an open ladle by means

Details Process for treating molten cast iron in an open ladle by means Process for treating molten cast iron in an open ladle by means

1989-05-10

1990-01-30

Rosenberg, Peter D.

Alloys or metallic compositions

Ferrous

1.7 percent or more carbon containing

75 53, 75 58, C21C 702

Patent

active

048972428

ABSTRACT:
A process for treating molten cast iron in an open ladle by means of pure magnesium is proposed, wherein the pure magnesium is introduced in a multiplicity of very small magnesium particles, coated with a protective layer, into the molten cast iron.
The protective layer, which protects the magnesium from premature melting and controls the reaction rate, is produced from ceramics.
The process can be carried out with very simple equipment. Involved pretreatments of the treatment agent are unnecessary.

REFERENCES:
patent: 3957502 (1976-05-01), Cull
patent: 4040818 (1977-08-01), Clegg
patent: 4364771 (1982-12-01), Cordier
patent: 4541867 (1985-09-01), Neelameggham
patent: 4592777 (1986-06-01), Rellermeyer

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