Title:
METHOD AND DEVICE FOR MEASURING ELONGATION PERCENTAGE OF METALLIC SHEET
Document Type and Number:
Japanese Patent JP2008110377
Kind Code:
A
Abstract:
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.
When measuring the elongation percentage which is actually imparted with a rolling mill 2 or the like, by calculating the variation V in the actual result V of instantaneous elongation percentage and adding it to the actual result L of 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.
Inventors:
SORAO KENJI
HATANO HIROAKI
FUJIHIRA KOICHI
HATANO HIROAKI
FUJIHIRA KOICHI
Application Number:
JP2006295102A
Publication Date:
May 15, 2008
Filing Date:
October 31, 2006
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B21B37/56; B21B37/00; B21C51/00
Domestic Patent References:
| JPH0716634A | 1995-01-20 | |||
| JPS60180615A | 1985-09-14 | |||
| JPH08252620A | 1996-10-01 | |||
| JPH0611339A | 1994-01-21 | |||
| JPH02127910A | 1990-05-16 | |||
| JPS60148612A | 1985-08-05 | |||
| JPS6471511A | 1989-03-16 |
Attorney, Agent or Firm:
Etsuichi Matsumoto
Shiina Akira
Shiina Akira