JPS55109502A - Rolling method - Google Patents

Rolling method

Info

Publication number
JPS55109502A
JPS55109502A JP1528179A JP1528179A JPS55109502A JP S55109502 A JPS55109502 A JP S55109502A JP 1528179 A JP1528179 A JP 1528179A JP 1528179 A JP1528179 A JP 1528179A JP S55109502 A JPS55109502 A JP S55109502A
Authority
JP
Japan
Prior art keywords
crown
control
ratio
controllability
increase
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
JP1528179A
Other languages
Japanese (ja)
Other versions
JPS5829162B2 (en
Inventor
Kiyoshi Kizaki
Tsutomu Hara
Hisashi Honjo
Takashi Emori
Masatomo Terakawa
Yoshiaki Takashima
Akihiro Kamatani
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.)
IHI Corp
Nippon Steel Corp
Original Assignee
IHI Corp
Nippon 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 IHI Corp, Nippon Steel Corp filed Critical IHI Corp
Priority to JP54015281A priority Critical patent/JPS5829162B2/en
Publication of JPS55109502A publication Critical patent/JPS55109502A/en
Publication of JPS5829162B2 publication Critical patent/JPS5829162B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To suitably control the sheet crown of the rolled material, and to manufacture beautifully shaped sheet, by increasing the draft percentage of the final stand in order to increase the controlled variable of the crown, and at the same time, by executing the shape control for the crown.
CONSTITUTION: The data control block (DCB) is installed in five stands F2W F6 of the finishing mill group consisting of illustrated six stands F1WF6, and the crown is controlled to the range from maximum increase to maximum decrease; in this case, the variation of crown ratio is expressed as follows. That is, the controllability for the sheet crown is governed by the crown controllability of F6. Accordingly, the crown controllability can be greatly increased by increasing the draft percentage of F6. Besides, in this method, the draft percentage of F6 is increased in order to increase the controlled variable of the crown, and also, the shape control is carried out simultaneously with the crown control. That is, the crown control unit of the F6 stand is actuated so as to make the relation between the crown ratio C0 on the exit side of F6 and the crown ratio C1 on the entry side of F6, to be |C0-C1|≤1/2 × shape allowable crown ratio variation.
COPYRIGHT: (C)1980,JPO&Japio
JP54015281A 1979-02-13 1979-02-13 Hot rolling method Expired JPS5829162B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54015281A JPS5829162B2 (en) 1979-02-13 1979-02-13 Hot rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54015281A JPS5829162B2 (en) 1979-02-13 1979-02-13 Hot rolling method

Publications (2)

Publication Number Publication Date
JPS55109502A true JPS55109502A (en) 1980-08-23
JPS5829162B2 JPS5829162B2 (en) 1983-06-21

Family

ID=11884461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54015281A Expired JPS5829162B2 (en) 1979-02-13 1979-02-13 Hot rolling method

Country Status (1)

Country Link
JP (1) JPS5829162B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002253483A (en) * 2001-03-01 2002-09-10 Asahi Optical Co Ltd Length measurement tool for endoscope
US7857749B2 (en) 2001-02-26 2010-12-28 Hoya Corporation Treatment tools for endoscope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5391049A (en) * 1977-01-21 1978-08-10 Mitsubishi Electric Corp Shape control apparatus for tandem rolling machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5391049A (en) * 1977-01-21 1978-08-10 Mitsubishi Electric Corp Shape control apparatus for tandem rolling machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7857749B2 (en) 2001-02-26 2010-12-28 Hoya Corporation Treatment tools for endoscope
JP2002253483A (en) * 2001-03-01 2002-09-10 Asahi Optical Co Ltd Length measurement tool for endoscope

Also Published As

Publication number Publication date
JPS5829162B2 (en) 1983-06-21

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