METHOD FOR CONTROLLING COILING TEMPERATURE OF HOT-ROLLED STEEL STRIP

PURPOSE:To improve the accuracy of a model estimation for a coiling temp. control by eliminating a phenomenon which on/off operation of a valve are repeated in a short period in rolling equipment. CONSTITUTION:In the coiling temp. control facility for controlling the coiling temp. by executing the c...

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Bibliographic Details
Main Authors HARADA AKIRA, UEDA TOYOHIKO
Format Patent
LanguageEnglish
Published 15.08.1995
Edition6
Subjects
CHEMISTRY
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
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Summary:PURPOSE:To improve the accuracy of a model estimation for a coiling temp. control by eliminating a phenomenon which on/off operation of a valve are repeated in a short period in rolling equipment. CONSTITUTION:In the coiling temp. control facility for controlling the coiling temp. by executing the cooling with cooling facilities 5, 6 to a hot strip 4 finish- rolled with a finish rolling mill 1, the number of opening the valves is decided by fuzzy theory with a deciding part 14 for number of opening the valves by using an error between the predicted temp. and the target temp. in the case of opening/closing the valve for pouring the cooling water attached to the cooling facilities 5, 6 and time from changing time of the valves in the previous time and the stability of the presumed valves as evaluating indexes.
Bibliography:Application Number: JP19940129472