JPS5619915A - Controlling method for electric current of continuous rolling mill - Google Patents

Controlling method for electric current of continuous rolling mill

Info

Publication number
JPS5619915A
JPS5619915A JP9641079A JP9641079A JPS5619915A JP S5619915 A JPS5619915 A JP S5619915A JP 9641079 A JP9641079 A JP 9641079A JP 9641079 A JP9641079 A JP 9641079A JP S5619915 A JPS5619915 A JP S5619915A
Authority
JP
Japan
Prior art keywords
electric current
changing
stand
roll
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.)
Granted
Application number
JP9641079A
Other languages
Japanese (ja)
Other versions
JPS6026604B2 (en
Inventor
Ryoichi Takahashi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP54096410A priority Critical patent/JPS6026604B2/en
Publication of JPS5619915A publication Critical patent/JPS5619915A/en
Publication of JPS6026604B2 publication Critical patent/JPS6026604B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Metal Rolling (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE: To control the electric current value of each stand to the range of allowable values without changing the product thickness, by operating so as to simultaneously change the roll gap, the roll r.p.m., and the interstand tension, holding their specified relation, at changing the rolling electric current of each stand.
CONSTITUTION: At changing the electric current of each stand of the continuous rolling mill, the changing value ΔI1(mm) of the roll gap, the changing value ΔN1 of the roll r.p.m., and the changing value Δσ1(kg/mm2) of the interstand tension, are computed for each stand depending on the formula obtained from the factors to be decided according to each rolling information and each draft schedule. According to thus obtained values, the operation is performed for each stand to change the roll gap S1, the roll r.p.m. N1, and the tension σ1 between adjoining stands; hereby, the changing value ΔI for the electric current for the rolling work of each stand can be controlled to the desired value. According to this method, the electric current for the rolling work can be changed without changing the product thickness during the rolling work is in operation, besides, the generation of troubles like as the mill-stop, etc., can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP54096410A 1979-07-27 1979-07-27 Current control method for continuous rolling mill Expired JPS6026604B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54096410A JPS6026604B2 (en) 1979-07-27 1979-07-27 Current control method for continuous rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54096410A JPS6026604B2 (en) 1979-07-27 1979-07-27 Current control method for continuous rolling mill

Publications (2)

Publication Number Publication Date
JPS5619915A true JPS5619915A (en) 1981-02-25
JPS6026604B2 JPS6026604B2 (en) 1985-06-25

Family

ID=14164190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54096410A Expired JPS6026604B2 (en) 1979-07-27 1979-07-27 Current control method for continuous rolling mill

Country Status (1)

Country Link
JP (1) JPS6026604B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135750A (en) * 1983-12-23 1985-07-19 Agency Of Ind Science & Technol Chemical emission type analytical device for trace component in liquid
CN102179412A (en) * 2011-01-04 2011-09-14 山西太钢不锈钢股份有限公司 Control method of speed and acceleration of continuous hot rolling roughing rolling unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109692874B (en) * 2018-12-11 2020-03-03 燕山大学 Method for simultaneously carrying out counter-current online roll changing and dynamic schedule changing of ESP finishing mill group

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60135750A (en) * 1983-12-23 1985-07-19 Agency Of Ind Science & Technol Chemical emission type analytical device for trace component in liquid
CN102179412A (en) * 2011-01-04 2011-09-14 山西太钢不锈钢股份有限公司 Control method of speed and acceleration of continuous hot rolling roughing rolling unit

Also Published As

Publication number Publication date
JPS6026604B2 (en) 1985-06-25

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