METHOD AND APPARATUS FOR REDUCING TEMPERATURE DEVIATION OF ROLL SURFACE IN HEATING ROLL

PURPOSE: A method and an apparatus for reducing a temperature deviation of a roll surface in a heating roll are provided to reduce a surface temperature deviation by incorporating a copper or aluminium cylinder of which a heat expansion coefficient is larger than a general iron by 7 times, thereby i...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, SEONG HWI, KIM, BYEONG IN, PARK, CHAN IL, PARK, HUI CHANG
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: A method and an apparatus for reducing a temperature deviation of a roll surface in a heating roll are provided to reduce a surface temperature deviation by incorporating a copper or aluminium cylinder of which a heat expansion coefficient is larger than a general iron by 7 times, thereby improving the quality of a processed raw sheet. CONSTITUTION: An apparatus for reducing a temperature deviation of a roll surface in a heating roll which is stacked with a bobbin, a core and an induction coil and assembled by side brackets, includes a cylinder(6) made of copper or aluminium material is inserted into a cylinder(7) made of general iron material and a temperature sensor(8) is mounted on the copper or aluminium cylinder, wherein a room(A) is defined in the copper or aluminium cylinder to be expanded at a target temperature to closely contact the iron cylinder.