JPS56114512A - Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work - Google Patents

Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work

Info

Publication number
JPS56114512A
JPS56114512A JP1741380A JP1741380A JPS56114512A JP S56114512 A JPS56114512 A JP S56114512A JP 1741380 A JP1741380 A JP 1741380A JP 1741380 A JP1741380 A JP 1741380A JP S56114512 A JPS56114512 A JP S56114512A
Authority
JP
Japan
Prior art keywords
thickness
rolling work
strip
changing
traveling strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1741380A
Other languages
Japanese (ja)
Inventor
Fumio Yoshida
Yoshikazu Kodera
Okinori Nakashima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Nippon Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP1741380A priority Critical patent/JPS56114512A/en
Publication of JPS56114512A publication Critical patent/JPS56114512A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • B21B37/26—Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

PURPOSE: To smoothly, accurately control the thickness before and after changing the thickness of strip, by interrupting the thickness control at the transition period of changing the thickness of traveling strip, by renewing the aim value of the run-out side thickness meter a specified time after the end of rolling work for the changed thickness, and by restarting the thickness control.
CONSTITUTION: At changing the thickness of traveling strip, the thickness control action is interrupted for a while. Before or at the same time as the end of changing action for thickness of the traveling strip, soon or a specified time after receiving the signal from the timing input device 7 for the rolling work for the thickness changed traveling strip, the position of the strip 1 is trailed by the trailer 9. When the strip 1 arrives at the downstream side thickness gauge 3 of the rolling stand 2, the aim thickness of the thickness gauge 3 is renewed; each if AGC actions of the monitoring AGC device 4 is restarted for controlledly driving the screw position controller 6 of the rolling stand 2 while comparing said renewed aim thickness with actual thickness detected in the rollowing rolling work.
COPYRIGHT: (C)1981,JPO&Japio
JP1741380A 1980-02-15 1980-02-15 Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work Pending JPS56114512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1741380A JPS56114512A (en) 1980-02-15 1980-02-15 Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1741380A JPS56114512A (en) 1980-02-15 1980-02-15 Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work

Publications (1)

Publication Number Publication Date
JPS56114512A true JPS56114512A (en) 1981-09-09

Family

ID=11943315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1741380A Pending JPS56114512A (en) 1980-02-15 1980-02-15 Controlling method for rolling work changing thickness of traveling strip undergoing hot rolling work

Country Status (1)

Country Link
JP (1) JPS56114512A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914357A (en) * 1972-05-23 1974-02-07
JPS5132464A (en) * 1974-09-13 1976-03-19 Hitachi Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4914357A (en) * 1972-05-23 1974-02-07
JPS5132464A (en) * 1974-09-13 1976-03-19 Hitachi Ltd

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