Method and apparatus for out-of-furnace treatment of cast iron

Details Method and apparatus for out-of-furnace treatment of cast iron Method and apparatus for out-of-furnace treatment of cast iron

1981-11-09

1983-06-28

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266208, C21C 710

Patent

active

043903622

ABSTRACT:
A molten metal is fed into a ladle and subjected to vacuum while being treated with inoculating additives. The application of vacuum is carried out prior to the beginning of interaction between the melt and the inoculating additives, and is conducted continuously for 15 to 120 seconds in the course of this interaction. A receiving tank is provided with a discharge opening which is closed with an insert, a ladle having load trunnions is disposed under this tank with a sealable chamber. A system of air evacuation is provided for the chamber whereby on disintergration of the insert the molten metal with tank enters the chamber and is subjected to the vacuum.

REFERENCES:
patent: 3013316 (1961-12-01), Hornak
patent: 3182359 (1965-05-01), Gero
patent: 3700026 (1972-10-01), Adachi
patent: 3779743 (1973-12-01), Olsson
patent: 3790368 (1972-02-01), Olsson

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