JPS5626610A - Method and apparatus for automatic feedforward control of sheet thickness - Google Patents

Method and apparatus for automatic feedforward control of sheet thickness

Info

Publication number
JPS5626610A
JPS5626610A JP10175279A JP10175279A JPS5626610A JP S5626610 A JPS5626610 A JP S5626610A JP 10175279 A JP10175279 A JP 10175279A JP 10175279 A JP10175279 A JP 10175279A JP S5626610 A JPS5626610 A JP S5626610A
Authority
JP
Japan
Prior art keywords
pass
output
memory
run
feed
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
JP10175279A
Other languages
Japanese (ja)
Inventor
Kazufumi Baba
Masatoshi Inoue
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP10175279A priority Critical patent/JPS5626610A/en
Publication of JPS5626610A publication Critical patent/JPS5626610A/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
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/60—Roll-force control; Roll-gap control by control of a motor which drives an adjusting screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/22—Hardness

Abstract

PURPOSE: To make the titled control of good accuracy possible to be performed, by making the apparatus possible to control the fluctuation of the rolling load due to the feed-in side temperature fluctuation, additionally to the fluctuation of the feed-in side thickness of the rolled material.
CONSTITUTION: The deviation of the run-out side sheet thickness from the thickness at the time of lock-on of the rolled material 10 to be detected at the former pass is detected and memorized; this value is taken as the feed-in side thickness deviation Δh of the following pass, and the rolling reduction of the following pass is controlled. Hereupon, the detector 40 detects the rolling load F0 at the time of lock-on at the present pass, according to the output of the load cell 18. The output of the memory 34, for the longitudinal distribution of the run-out side thickness deviation at the former pass, is memorized by the memory 42; then, the longitudinal distribution of the plasticity constant M2 of the material 10 at the present pass is obtained from the output of the operator 28 for the run-out side thickness deviation at the present pass. This longitudinal distribution of the plasticity M2 is stored by the memory 44 synchronously with the output of the unit 32 for the longitudinal position of the material 10; the arithmetic unit 46 receives the output of the memory 44 and makes it the roll gap variation reference ΔS' which is then inputted to the driver 15 of the screw down device 14.
COPYRIGHT: (C)1981,JPO&Japio
JP10175279A 1979-08-08 1979-08-08 Method and apparatus for automatic feedforward control of sheet thickness Pending JPS5626610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10175279A JPS5626610A (en) 1979-08-08 1979-08-08 Method and apparatus for automatic feedforward control of sheet thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10175279A JPS5626610A (en) 1979-08-08 1979-08-08 Method and apparatus for automatic feedforward control of sheet thickness

Publications (1)

Publication Number Publication Date
JPS5626610A true JPS5626610A (en) 1981-03-14

Family

ID=14308961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10175279A Pending JPS5626610A (en) 1979-08-08 1979-08-08 Method and apparatus for automatic feedforward control of sheet thickness

Country Status (1)

Country Link
JP (1) JPS5626610A (en)

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