JPS57146412A - Controlling device for reeling mill - Google Patents

Controlling device for reeling mill

Info

Publication number
JPS57146412A
JPS57146412A JP56029914A JP2991481A JPS57146412A JP S57146412 A JPS57146412 A JP S57146412A JP 56029914 A JP56029914 A JP 56029914A JP 2991481 A JP2991481 A JP 2991481A JP S57146412 A JPS57146412 A JP S57146412A
Authority
JP
Japan
Prior art keywords
wall
thickness
mill
wall thickness
outer dia
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
JP56029914A
Other languages
Japanese (ja)
Other versions
JPS6049048B2 (en
Inventor
Yutaka Funiyu
Toshiichi Masuda
Haruyoshi Kumayama
Yasuo Morooka
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
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, Kawasaki Steel Corp filed Critical Hitachi Ltd
Priority to JP56029914A priority Critical patent/JPS6049048B2/en
Publication of JPS57146412A publication Critical patent/JPS57146412A/en
Publication of JPS6049048B2 publication Critical patent/JPS6049048B2/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
    • 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
    • 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
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/08—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills
    • B21B17/12—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel having one or more protrusions, i.e. only the mandrel plugs contact the rolled tube; Press-piercing mills in a discontinuous process, e.g. plug-rolling mills

Landscapes

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

Abstract

PURPOSE:To fix a shape of a pipe material to be rolled at the exit side of a reeling mill, by correctingly computing a set-controlling-quantity of a rolling-condition-controlling device based on outputs from a desired wall-thickness-computing device and a wall-thickness reducing-quantity-computing device. CONSTITUTION:The length and outer dia. of a pipe are measured by a length gauge 3 and an outer dia. guage 4 respectively at the exit side of a plug mill 1, and the wall thickness of it is computed by an operator 6. A desired wall thickness is computed based on a desired outer dia., an outer dia. obtained from a memory unit 5, and the wall thickness from the operator 6 by a desired wall-thickness computing device 8. An actual reduced quantity of the wall thickness is computed based on a roll driving force of a reeling mill derived from a motor controlling device 16 by a wall-thickness reducing-quantity computing device 9. A prescribed wall-thickness reducing-quantity, obtained from the difference of wall thickness between a desired wall thickness of the device 8 and the wall-thickness at the exit side of the plug mill, is compared with the actual wall-thickness reduced-quantity of the device 9 to obtain a correcting quantity of wall thickness reducing of a reeling mill 11. The result is fed back to a leading-control device 14 to control automatically the rolling condition of the mill 11 from the actual rolling results, and then a steel pipe having fixed outer dia. and wall thickness is obtained in highly finishing accuracy.
JP56029914A 1981-03-04 1981-03-04 Leeramil control device Expired JPS6049048B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56029914A JPS6049048B2 (en) 1981-03-04 1981-03-04 Leeramil control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56029914A JPS6049048B2 (en) 1981-03-04 1981-03-04 Leeramil control device

Publications (2)

Publication Number Publication Date
JPS57146412A true JPS57146412A (en) 1982-09-09
JPS6049048B2 JPS6049048B2 (en) 1985-10-30

Family

ID=12289253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56029914A Expired JPS6049048B2 (en) 1981-03-04 1981-03-04 Leeramil control device

Country Status (1)

Country Link
JP (1) JPS6049048B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455369C (en) * 2005-06-30 2009-01-28 宝山钢铁股份有限公司 Feed forward control method for wall thickness of tension reducing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455369C (en) * 2005-06-30 2009-01-28 宝山钢铁股份有限公司 Feed forward control method for wall thickness of tension reducing machine

Also Published As

Publication number Publication date
JPS6049048B2 (en) 1985-10-30

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