Method of continuous production of nodular cast iron

Details Method of continuous production of nodular cast iron Method of continuous production of nodular cast iron

1977-08-19

1979-04-24

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 53, C22C 3308

Patent

active

041509790

ABSTRACT:
A method, comprising melting in a furnace a ferriferrous charge with a carbon content of at least 2% by weight with the primary melt filling not more than 2/3 of the furnace volume, and introducing thereinto a solid iron, comprising at least one graphite-spheroidizing element taken in an amount exceeding by 4-10 times that of conventional nodular cast iron or supplying said graphite-spheroidizing element with foundry returns made up of nodular iron castings with a conventional content of said graphite-spheroidizing element, and with the subsequent melting and heating of the melt in said furance to a tapping temperature.

REFERENCES:
patent: 3527597 (1970-09-01), Dawson

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