METHOD OF AN APPARATUS FOR VARYING THE SECONDARY COOLING EFFECT IN THE CONTINUOUS CASTING OF STEEL

摘要

ABSTRACT OF THE DISCLOSURE :This invention is concerned with a method of varyingthe secondary cooling effect in the continuous casting of steel,particularly when the casting cross sections are altered, com-prising spraying a coolant on the surface of the casting fromspray nozzles on each side of the casting and changing theperpendicular distance of the nozzles from the casting surfaceto vary the cooling effect when the casting cross section isaltered. The method according to the invention is characte-rized in that the inter-nozzle spacing of two or more nozzleslocated side-by-side across the casting is varied to compensatechanges in the sprayed surface area on the casting and conse-quent changes in the cooling effect that are due to changesin the distance of the nozzles from the casting surface and/orto changes in the included angle of the spray fans. An appara-tus for carrying out the method of the invention is alsodescribed.