B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
22/167, 22/55
B22D 11/18 (2006.01) B22D 11/10 (2006.01) B22D 41/50 (2006.01)
Patent
CA 1322096
ABSTRACT The present invention relates to a casting method for a continuous casting machine of a reduced height with a horizontal or almost horizontal oscillatory crystallizer, whereby an immersed teeming nozzle teems molten metal into the crystallizer below the meniscus, regulation of the flow being obtained with regulation means, a pressure being kept within a tube portion of the teeming nozzle at least transiently which is correlated with the pressure surrounding the teeming nozzle itself and with the pressure acting on the meniscus of the molten metal in the crystallizer, the pressure within the tube portion of the teeming nozzle being such as will at least hinder the migration of gas from the exterior of the nozzle to the inside of the bore of the tube portion. The invention also relates to an immersed teeming nozzle for a continuous casting machine of a reduced height, which teems the metal below the meniscus of molten metal in an oscillatory crystallizer, means to regulate the flow of the molten metal being comprised, the nozzle being suitable to perform the above method and comprising means at least to hinder a migration of gas from the exterior to the inside of the nozzle.
576163
Bassarutti Alfredo
Tosini Riccardo
Danieli & C. Officine Meccaniche S.p.a.
Goudreau Gage Dubuc
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