Method for cooling a metallic strand, and switching valve for intermittently permitting and shutting off a volume flow of a cooling medium

The invention relates to a method for cooling a metallic strand in a strand guide of a strand casting machine, and to a switching valve for intermittently permitting and shutting off a volume flow of a cooling medium. The problem addressed by the invention is that of specifying a method for cooling...

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Bibliographische Detailangaben
Hauptverfasser:	LADNER PETER, WAHL HELMUT, SCHEIDL RUDOLF, MAIRHOFER MARKUS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING NOZZLES PERFORMING OPERATIONS POWDER METALLURGY SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for cooling a metallic strand in a strand guide of a strand casting machine, and to a switching valve for intermittently permitting and shutting off a volume flow of a cooling medium. The problem addressed by the invention is that of specifying a method for cooling a metallic strand in a strand guide, and a switching valve for intermittently permitting and shutting off a volume flow of a cooling medium, by means of which the cooling intensity can be adjusted over a broad range in a simple, robust and energy-efficient manner. Said problem is solved by means of the following method steps: - actively controlling a switchable switching valve (1) by means of a binary control signal (5), wherein the control is imparted as a function of a desired cooling power; - actuating a switching element (16) of the switching valve as a function of the control signal (5), wherein the switching element (16) is moved from a closed position into an open position or vice versa as a function of the