JPS5770017A - Method for controlling thickness of plate at threading - Google Patents

Method for controlling thickness of plate at threading

Info

Publication number
JPS5770017A
JPS5770017A JP55146100A JP14610080A JPS5770017A JP S5770017 A JPS5770017 A JP S5770017A JP 55146100 A JP55146100 A JP 55146100A JP 14610080 A JP14610080 A JP 14610080A JP S5770017 A JPS5770017 A JP S5770017A
Authority
JP
Japan
Prior art keywords
rolling
stand
tension
plate
aimed
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.)
Granted
Application number
JP55146100A
Other languages
Japanese (ja)
Other versions
JPS617128B2 (en
Inventor
Toru Morita
Masami Konishi
Yukio Asada
Kiyohiro Tani
Masaru Tajiri
Akira Teramoto
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP55146100A priority Critical patent/JPS5770017A/en
Publication of JPS5770017A publication Critical patent/JPS5770017A/en
Publication of JPS617128B2 publication Critical patent/JPS617128B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To improve accuracy of the thickness of plate, by dynamically controlling each stand every moment in accordance with the biting of the rolling material by each stand.
CONSTITUTION: The rolling load is successively detected at a stand which is located at the most downstream among stands which bite the rolling material when each stand starts to bite the rolling material, and the difference between an aimed rolling load and the detected one is calculated. Then, control of the rolling load is repeatedly performed by adjusting the interval between each rolling stand so that the aimed rolling load is achieved. Moreover, the tension of the rolling material between stands at the upper stream side is detected, and the difference between an aimed tension and the detected one is calculated. Control of the tension is performed by adjusting the rolling speed so that the aimed tension is achieved. Then, the control of the thickness of plate is performed on stands at the upper stream side including said stand, and these controls of tension and thickness of plate are continued until a fixed rolling speed is reached at the time of acceleration.
COPYRIGHT: (C)1982,JPO&Japio
JP55146100A 1980-10-18 1980-10-18 Method for controlling thickness of plate at threading Granted JPS5770017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146100A JPS5770017A (en) 1980-10-18 1980-10-18 Method for controlling thickness of plate at threading

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146100A JPS5770017A (en) 1980-10-18 1980-10-18 Method for controlling thickness of plate at threading

Publications (2)

Publication Number Publication Date
JPS5770017A true JPS5770017A (en) 1982-04-30
JPS617128B2 JPS617128B2 (en) 1986-03-04

Family

ID=15400137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146100A Granted JPS5770017A (en) 1980-10-18 1980-10-18 Method for controlling thickness of plate at threading

Country Status (1)

Country Link
JP (1) JPS5770017A (en)

Also Published As

Publication number Publication date
JPS617128B2 (en) 1986-03-04

Similar Documents

Publication Publication Date Title
JPS57130713A (en) Rolling speed arranging method of cold tandem mill
JPS5666315A (en) Controlling method for sheet thickness in strip mill
JPS5770017A (en) Method for controlling thickness of plate at threading
JPS53134757A (en) Apparatus for controlling rolling mill
JPS5722812A (en) Method for automatic control of plate thickness of multistand rolling mill
JPS56139210A (en) Controlling method for strip thickness in rolling mill
JPS5770018A (en) Method for controlling thickness plate at passing through cold tandem mill
JPS5682754A (en) Position control method for coiler
JPS5770016A (en) Method for controlling thickness of plate at threading
JPS55100852A (en) Direct rolling type continuous casting method
JPS53131260A (en) Continuous rolling control unit
JPS5352886A (en) Tension controlling system for continuous roller
JPS56114523A (en) Speed control method for continuous rolling mill
JPS56158206A (en) Continuous rolling method for strip
JPS56114511A (en) Controlling method for rolling work changeable thickness of traveling strip to be hot-rolled
JPS5394248A (en) Tension controlling method of continuous rolling mill
JPS55122615A (en) Plate breadth control method by cold roll tandem mill
JPS5584215A (en) Exit side temperature control method in rolling mill
JPS5533814A (en) Rolling control method of continuous rolling mill
JPS544856A (en) Method and apparatus for controlling looper
JPS56117811A (en) Controlling method for rolling work changeable thickness of traveling sheet
JPS5377992A (en) Delooping quantity set value changin method and device for rolling machine velocity
JPS53118260A (en) Plate-thickness controlling method for rolling mill
JPS5435853A (en) Control method for plate width of hot finish rolling mill
JPS57168719A (en) Changing method of plate thickness in plate rolling