JPS56114518A - Automatic thickness controller for continuous rolling mill - Google Patents

Automatic thickness controller for continuous rolling mill

Info

Publication number
JPS56114518A
JPS56114518A JP1803280A JP1803280A JPS56114518A JP S56114518 A JPS56114518 A JP S56114518A JP 1803280 A JP1803280 A JP 1803280A JP 1803280 A JP1803280 A JP 1803280A JP S56114518 A JPS56114518 A JP S56114518A
Authority
JP
Japan
Prior art keywords
thickness
action
screw position
changing
rolling
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
JP1803280A
Other languages
Japanese (ja)
Inventor
Okinori Nakashima
Yoshikazu Kodera
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 JP1803280A priority Critical patent/JPS56114518A/en
Publication of JPS56114518A publication Critical patent/JPS56114518A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24Automatic variation of thickness according to a predetermined programme
    • B21B37/26Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

PURPOSE: To always maintain stable automatic thickness control characteristic, and to improve the accuracy of thickness, by interrupting the action of thickness control on the occasion of changing the thickness, and by altering each constant correlatively included in a rolling load, the variation of a screw position, the run-out side thickness deviation and the correction for the screw position.
CONSTITUTION: On the occasion of changing the thickness, the automatic thickness controlling action of each rolling stand 1 is interrupted according to the signal to start the changing action for thickness of the traveling strip. The screw position is altered to a new position set for the thickness of the second product. Soon or a specified time after ending the thickness changing action, the rolling load and the screw position at that moment are memorized as the reference rolling load and screw position for the second product; then, the action of the rolling force controlling type automatic thickness control 5 is restarted taking above stored data as the reference for the following thickness control. By the present mechanism, the characteristic of automatic thickness control stabilizes notwithstanding the change of strip's plastic hardness in each rolling stand 1.
COPYRIGHT: (C)1981,JPO&Japio
JP1803280A 1980-02-16 1980-02-16 Automatic thickness controller for continuous rolling mill Pending JPS56114518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1803280A JPS56114518A (en) 1980-02-16 1980-02-16 Automatic thickness controller for continuous rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1803280A JPS56114518A (en) 1980-02-16 1980-02-16 Automatic thickness controller for continuous rolling mill

Publications (1)

Publication Number Publication Date
JPS56114518A true JPS56114518A (en) 1981-09-09

Family

ID=11960319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1803280A Pending JPS56114518A (en) 1980-02-16 1980-02-16 Automatic thickness controller for continuous rolling mill

Country Status (1)

Country Link
JP (1) JPS56114518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950155A (en) * 2012-10-16 2013-03-06 河北钢铁股份有限公司唐山分公司 AGC (Automatic Gain Control) method capable of calculating thickness based on second flow

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061363A (en) * 1973-10-03 1975-05-26
JPS51145448A (en) * 1975-06-10 1976-12-14 Tokyo Shibaura Electric Co Control device for hydraulic rolling mill
JPS5274557A (en) * 1975-12-18 1977-06-22 Mitsubishi Electric Corp Method of compensating cain of control of quantity looped by looper apparatus
JPS52116760A (en) * 1976-03-26 1977-09-30 Hitachi Ltd Method of automatically controlling thickness of plate in rolling
JPS53104560A (en) * 1977-02-25 1978-09-11 Toshiba Corp Auotomatic plate thickness controller
JPS5517412A (en) * 1978-07-25 1980-02-06 Toshiba Corp Pressure transmitter with replacement unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061363A (en) * 1973-10-03 1975-05-26
JPS51145448A (en) * 1975-06-10 1976-12-14 Tokyo Shibaura Electric Co Control device for hydraulic rolling mill
JPS5274557A (en) * 1975-12-18 1977-06-22 Mitsubishi Electric Corp Method of compensating cain of control of quantity looped by looper apparatus
JPS52116760A (en) * 1976-03-26 1977-09-30 Hitachi Ltd Method of automatically controlling thickness of plate in rolling
JPS53104560A (en) * 1977-02-25 1978-09-11 Toshiba Corp Auotomatic plate thickness controller
JPS5517412A (en) * 1978-07-25 1980-02-06 Toshiba Corp Pressure transmitter with replacement unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102950155A (en) * 2012-10-16 2013-03-06 河北钢铁股份有限公司唐山分公司 AGC (Automatic Gain Control) method capable of calculating thickness based on second flow

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