Stickstoffkonzentrationsvorhersageverfahren, Stickstoffkonzentrationssteuerungsverfahren, Stickstoffkonzentrationsvorhersagevorrichtung und Stickstoffkonzentrationssteuerungsvorrichtung

Details

Veröffentlichungs-Nr.

EP4825989

Anmeldetag

27. November 2024

Veröffentlichung

28. August 2025

Rechtsraum

EP

IPC

C21C7/00, C21C7/10

Abstract

A nitrogen concentration prediction method of the present invention includes a prediction step of calculating a predicted value of the nitrogen concentration in the molten steel under an operating condition to be predicted, by using a nitrogen concentration prediction model that is a physical model that uses, as an input variable, a condition of the vacuum degassing process, and uses, as an output variable, a predicted value of the nitrogen concentration in the molten steel under the condition; and a correction step of correcting the predicted value of the nitrogen concentration in the molten steel calculated in the prediction step, by using a machine learning correction model that is a machine learning model that uses, as an explanatory variable, the condition of the vacuum degassing process, and uses, as a target variable, a prediction error which is a difference value between the predicted value of the nitrogen concentration in the molten steel calculated under the condition with use of the nitrogen concentration prediction model, and an actual value.

Anmelder

Firma

JFE Steel Corporation

Land

🇯🇵 Japan

Fachgebiete