JPS5451954A - Positioning control method of rolling mill - Google Patents

Positioning control method of rolling mill

Info

Publication number
JPS5451954A
JPS5451954A JP11893677A JP11893677A JPS5451954A JP S5451954 A JPS5451954 A JP S5451954A JP 11893677 A JP11893677 A JP 11893677A JP 11893677 A JP11893677 A JP 11893677A JP S5451954 A JPS5451954 A JP S5451954A
Authority
JP
Japan
Prior art keywords
rolls
opening
deflection
driven
target
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
JP11893677A
Other languages
Japanese (ja)
Other versions
JPS583449B2 (en
Inventor
Shizuka Mizugai
Koji Kotaki
Yoshinobu Kato
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.)
Toshiba Corp
Nippon Steel Corp
Original Assignee
Toshiba Corp
Sumitomo Metal Industries Ltd
Tokyo Shibaura Electric Co 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 Toshiba Corp, Sumitomo Metal Industries Ltd, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP52118936A priority Critical patent/JPS583449B2/en
Publication of JPS5451954A publication Critical patent/JPS5451954A/en
Publication of JPS583449B2 publication Critical patent/JPS583449B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To position and control a rolling mill, by preventing contact between upper and lower rolls by comparing the rolling reduction opening and target opening of the upper and lower rolls every a fixed time and by controlling lower roll speed according to the deflection.
CONSTITUTION: Upper and lower rolls UR, DR are driven by speed reference according to deflection between a target location and a present location every a fixed time in asection I. When rolling reduction opening becomes not more than (Target opening-constant) in a section II, the upper roll UR is driven by speed reference corresponding to deflection between the target location and the present location, and the lower roll DR is driven by speed reference corresponding to deflection between target opening and present rolling reduction opening, thus controlling a rolling machine so that both rolls expand. When the opening of both rolls becomes not less than (Target opening-constant) in a section III, the upper and lower rolls UR, DR are driven according to the same reference as the section I. This method can prevent the formation of roll flaws due to contact between both rolls
COPYRIGHT: (C)1979,JPO&Japio
JP52118936A 1977-10-03 1977-10-03 Rolling mill positioning control method Expired JPS583449B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52118936A JPS583449B2 (en) 1977-10-03 1977-10-03 Rolling mill positioning control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52118936A JPS583449B2 (en) 1977-10-03 1977-10-03 Rolling mill positioning control method

Publications (2)

Publication Number Publication Date
JPS5451954A true JPS5451954A (en) 1979-04-24
JPS583449B2 JPS583449B2 (en) 1983-01-21

Family

ID=14748883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52118936A Expired JPS583449B2 (en) 1977-10-03 1977-10-03 Rolling mill positioning control method

Country Status (1)

Country Link
JP (1) JPS583449B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148834A (en) * 2016-02-24 2017-08-31 Ｊｆｅスチール株式会社 Draft level control device and draft level control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148834A (en) * 2016-02-24 2017-08-31 Ｊｆｅスチール株式会社 Draft level control device and draft level control method

Also Published As

Publication number Publication date
JPS583449B2 (en) 1983-01-21

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