Method for controlling steel making process under reduced pressu

Details Method for controlling steel making process under reduced pressu Method for controlling steel making process under reduced pressu

1978-08-30

1981-02-17

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 59, C21C 530

Patent

active

042512697

ABSTRACT:
Method of controlling steel making process under reduced pressures, comprising forming an intimate mixture of an exhaust gas and a measured quantity of a reference gas; mass spectrometrically monitoring a sample of the mixture for the ionization currents for selected peaks with which the CO, CO.sub.2, N.sub.2 and reference gas in the sample are concerned; determining the rate or amount of decarburization of the molten steel from the measured value of the quantity of the reference gas in the mixture and the measured values of the ionization currents, and; controlling the process according to the determined value of the rate or amount of decarburization.

REFERENCES:
patent: 3649246 (1975-03-01), Fulton
patent: 3666439 (1972-05-01), Ramachandran
patent: 3700429 (1972-10-01), Ramachandran
patent: 3748122 (1973-07-01), Ramachandran
patent: 3920447 (1975-11-01), Schroeder
patent: 3940263 (1976-02-01), Morello

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