COOLING METHOD FOR ANNEALED STEEL STRIP COIL

PURPOSE:To avert the substantial use of dehumidifying air for preventing dewing by continuously measuring the edge temp. of a bottom coil stacked in a coil cooling shop and cooling the coil to the coil edge temp. corresponding to the specified coil center temp. CONSTITUTION:Annealed coils 22 deliver...

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Bibliographische Detailangaben
Hauptverfasser:	MIKI TETSUO, KIKUCHI MITSUTOSHI, OOKOUCHI TOSHIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To avert the substantial use of dehumidifying air for preventing dewing by continuously measuring the edge temp. of a bottom coil stacked in a coil cooling shop and cooling the coil to the coil edge temp. corresponding to the specified coil center temp. CONSTITUTION:Annealed coils 22 delivered out from a box type annealing furnace are stacked on a coil base 21 of a coil cooling shop at roughly 140 deg.C coil central part temp. Thence, cooling air is fed through an opening 23 to the central part of the coils to cool the coils. When 40-70 deg.C coil center temps. attain the corresponding bottom coil edge temp., a damper 24 is commanded by a cylinder control valve 28 from a coil cooling controller to close the opening 23, and this completes cooling of the coils 22. The coil edge temp. corresponding to the coil center temps. is determined by the equations.