B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 11/16 (2006.01) B22D 11/10 (2006.01) B22D 11/20 (2006.01) G01F 23/26 (2006.01)
Patent
CA 2280523
The present invention relates to a continuous casting apparatus for continuously casting molten metal. More particularly, the present invention provides a method and an apparatus for controlling a surface level of molten metal in a mold when molten metal is continuously cast. The continuous casting apparatus of the invention comprises: a mold in which molten metal is poured and solidified; and an eddy current type molten metal surface level sensor for detecting a molten metal surface level in the mold. In the continuous casting apparatus having an electromagnetic coil arranged in such a manner that the electromagnetic coil surrounds the mold and also having an electric power supply for generating a pulse magnetic field from the electromagnetic coil, there are provided a mechanism for taking out a pulse trigger signal corresponding to the magnetic field from the electric power supply, and a mechanism for controlling a time of detecting a surface of molten metal by the molten metal level sensor.
L'invention porte sur un appareil de moulage en continu d'un métal, et en particulier sur un appareil et un procédé régulant le niveau du métal en fusion pendant sa coulée continue. L'appareil comprend un moule recevant le métal en fusion, un détecteur à courants de Foucault du niveau du métal dans le moule, un solénoïde entourant le moule, et une alimentation du solénoïde produisant un champ magnétique pulsé. Il comporte en outre un mécanisme émettant le signal de déclenchement des pulsations du champ magnétique à partir de l'alimentation, et un mécanisme de régulation de la périodicité de la détection de niveau commandé par le signal de déclenchement des impulsions.
Fujisaki Keisuke
Matsuda Hideki
Tani Masahiro
Wajima Kiyoshi
Goudreau Gage Dubuc
Nippon Steel Corporation
The Japan Research And Development Center For Metals
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