JPS55156611A - Controlling method for draft of reeling mill - Google Patents

Controlling method for draft of reeling mill

Info

Publication number
JPS55156611A
JPS55156611A JP6354079A JP6354079A JPS55156611A JP S55156611 A JPS55156611 A JP S55156611A JP 6354079 A JP6354079 A JP 6354079A JP 6354079 A JP6354079 A JP 6354079A JP S55156611 A JPS55156611 A JP S55156611A
Authority
JP
Japan
Prior art keywords
outer diameter
shell
mill
gap
expansion force
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
JP6354079A
Other languages
Japanese (ja)
Other versions
JPS6023888B2 (en
Inventor
Kazuyuki Sakurada
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 JP54063540A priority Critical patent/JPS6023888B2/en
Publication of JPS55156611A publication Critical patent/JPS55156611A/en
Publication of JPS6023888B2 publication Critical patent/JPS6023888B2/en
Expired 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
    • B21B37/78—Control of tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B21B19/10—Finishing, e.g. smoothing, sizing, reeling

Landscapes

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

Abstract

PURPOSE:To carry out titled control so as to make the shell's outer diameter on the runout side of the reeling mill to be constant in the shell's longitudinal direction, by detecting the force to be loaded on the guide shoe for expanding the outer diameter of the pipe, and by controlling the roll gap so as to make the pipe's outer diameter to be a specified value. CONSTITUTION:The shell 22, being rolled and stretched by the plug mill, is fed into the reeling mill from the left side, and is rolled through the gap of two rolls 10, 12, of the reeling mill and the plug 24; and after the outer and inner surfaces of the shell 22 are polished, the shell 22 is moved to the right. Hereupon, if the outer diameter expansion force, to be detected by the load cell 20 installed below the lower guide shoe 16, becomes larger than the previously set specified value, the gap of the rolls 10, 12, is widened to reduce the outer diameter expansion force, and if, on the contrary, that becomes smaller than the specified value, the gap of rolls 10, 12, is narrowed to increase the outer diameter expansion force. This outer diameter expansion force is hardly affected by the temperature change of the pipe blank, so that the draft control for the reelihg mill excellent in the responsiveness and the reliability is made possible.
JP54063540A 1979-05-22 1979-05-22 How to control the reduction of Leela Mill Expired JPS6023888B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54063540A JPS6023888B2 (en) 1979-05-22 1979-05-22 How to control the reduction of Leela Mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54063540A JPS6023888B2 (en) 1979-05-22 1979-05-22 How to control the reduction of Leela Mill

Publications (2)

Publication Number Publication Date
JPS55156611A true JPS55156611A (en) 1980-12-05
JPS6023888B2 JPS6023888B2 (en) 1985-06-10

Family

ID=13232145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54063540A Expired JPS6023888B2 (en) 1979-05-22 1979-05-22 How to control the reduction of Leela Mill

Country Status (1)

Country Link
JP (1) JPS6023888B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195583A2 (en) * 1985-03-13 1986-09-24 Kawasaki Steel Corporation Control of a cross helical rolling mill
JP2007290020A (en) * 2006-04-27 2007-11-08 Jfe Steel Kk Method of manufacturing medium diameter seamless steel pipe
JP2016043415A (en) * 2014-08-20 2016-04-04 Ｊｆｅスチール株式会社 Thick steel plate rolling method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0195583A2 (en) * 1985-03-13 1986-09-24 Kawasaki Steel Corporation Control of a cross helical rolling mill
JP2007290020A (en) * 2006-04-27 2007-11-08 Jfe Steel Kk Method of manufacturing medium diameter seamless steel pipe
JP4609372B2 (en) * 2006-04-27 2011-01-12 Ｊｆｅスチール株式会社 Manufacturing method of medium diameter seamless steel pipe
JP2016043415A (en) * 2014-08-20 2016-04-04 Ｊｆｅスチール株式会社 Thick steel plate rolling method and device

Also Published As

Publication number Publication date
JPS6023888B2 (en) 1985-06-10

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