JPS5561311A - Method and apparatus for controlling sheet thickness - Google Patents

Method and apparatus for controlling sheet thickness

Info

Publication number
JPS5561311A
JPS5561311A JP13400178A JP13400178A JPS5561311A JP S5561311 A JPS5561311 A JP S5561311A JP 13400178 A JP13400178 A JP 13400178A JP 13400178 A JP13400178 A JP 13400178A JP S5561311 A JPS5561311 A JP S5561311A
Authority
JP
Japan
Prior art keywords
thickness
reference load
longitudinal
above stated
traveling distance
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
JP13400178A
Other languages
Japanese (ja)
Inventor
Yujiro Segawa
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 JP13400178A priority Critical patent/JPS5561311A/en
Publication of JPS5561311A publication Critical patent/JPS5561311A/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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:To make the steel sheet provided with desired taper or steps possible to be exactly manufactured, in the automatic sheet thickness controlling method for detecting the deviation of the actual rolling load from the reference load, by varying above stated reference load correspondingly to the traveling distance of the rolled material. CONSTITUTION:The material 8 is controlled according to the rolling load detector 18 and the reference load F0 corresponding to the thickness by the conventional method through the controller 20; with the progress of the rolling work, the required longitudinal thickness variation is operated by the arithmetic unit 28 (depending on the specified formular) according to the outputs of the rolled material's traveling distance measuring device 26 and of the external setter 22 for setting the longitudinal thickness variation of the material 8 as the function of its traveling distance; the output of the arithmetic unit 28 is inputted into above stated controller 20 in order to vary the above stated reference load F0 and also to vary the longitudinal thickness of the material 8. As a result, even if the fluctuation of the entry side thickness of the material 8 and the fluctuation of the deformation resistance owing to the longitudinal temperature variation, etc., are existing, the required exit side thickness can be obtained without being affected by these fluctuations.
JP13400178A 1978-10-31 1978-10-31 Method and apparatus for controlling sheet thickness Pending JPS5561311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13400178A JPS5561311A (en) 1978-10-31 1978-10-31 Method and apparatus for controlling sheet thickness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13400178A JPS5561311A (en) 1978-10-31 1978-10-31 Method and apparatus for controlling sheet thickness

Publications (1)

Publication Number Publication Date
JPS5561311A true JPS5561311A (en) 1980-05-09

Family

ID=15118053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13400178A Pending JPS5561311A (en) 1978-10-31 1978-10-31 Method and apparatus for controlling sheet thickness

Country Status (1)

Country Link
JP (1) JPS5561311A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124513A (en) * 1981-01-27 1982-08-03 Sumitomo Metal Ind Ltd Sheet thickness controlling method for continuous rolling mill
JPS59178117A (en) * 1983-03-29 1984-10-09 Nippon Steel Corp Method for controlling sheet thickness in rolling mill
JPS60106613A (en) * 1983-11-14 1985-06-12 Mitsubishi Electric Corp Control device of different-thickness rolling position in plate mill
EP0839587A1 (en) * 1996-11-05 1998-05-06 Sms Schloemann-Siemag Aktiengesellschaft Method for rolling thick plates
JP2015536245A (en) * 2012-10-31 2015-12-21 宝山鋼鉄股▲分▼有限公司 Method for producing strip steels with different target thicknesses in the longitudinal direction using a hot rolling mill

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57124513A (en) * 1981-01-27 1982-08-03 Sumitomo Metal Ind Ltd Sheet thickness controlling method for continuous rolling mill
JPS638848B2 (en) * 1981-01-27 1988-02-24 Sumitomo Metal Ind
JPS59178117A (en) * 1983-03-29 1984-10-09 Nippon Steel Corp Method for controlling sheet thickness in rolling mill
JPH0126768B2 (en) * 1983-03-29 1989-05-25 Nippon Steel Corp
JPS60106613A (en) * 1983-11-14 1985-06-12 Mitsubishi Electric Corp Control device of different-thickness rolling position in plate mill
EP0839587A1 (en) * 1996-11-05 1998-05-06 Sms Schloemann-Siemag Aktiengesellschaft Method for rolling thick plates
US5943894A (en) * 1996-11-05 1999-08-31 Sms Schloemann-Siemag Aktiengesellschaft Method of rolling plates
JP2015536245A (en) * 2012-10-31 2015-12-21 宝山鋼鉄股▲分▼有限公司 Method for producing strip steels with different target thicknesses in the longitudinal direction using a hot rolling mill

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