METHOD AND DEVICE FOR MEASURING ELONGATION PERCENTAGE OF METALLIC SHEET

PROBLEM TO BE SOLVED: To provide a technique for measuring an elongation percentage so that the measurement error of the elongation percentage caused by the measurement error of a length measuring roll is reduced as much as possible and a time responsiveness is made high. SOLUTION: When measuring th...

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Hauptverfasser:	SORAO KENJI, FUJIHIRA KOICHI, HATANO HIROAKI
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a technique for measuring an elongation percentage so that the measurement error of the elongation percentage caused by the measurement error of a length measuring roll is reduced as much as possible and a time responsiveness is made high. SOLUTION: When measuring the elongation percentage which is actually imparted with a rolling mill 2 or the like, by calculating the variation Δ Vin the actual result Vof instantaneous elongation percentage and adding it to the actual result Lof the elongation percentage which is calculated at a fixed long period by the same method as a conventional one, the actual result of the elongation percentage the accuracy of which is secured with some degree is obtained at a short time period. COPYRIGHT: (C)2008,JPO&INPIT