JPS5797812A - Controlling method for rolling mill - Google Patents

Controlling method for rolling mill

Info

Publication number
JPS5797812A
JPS5797812A JP55172105A JP17210580A JPS5797812A JP S5797812 A JPS5797812 A JP S5797812A JP 55172105 A JP55172105 A JP 55172105A JP 17210580 A JP17210580 A JP 17210580A JP S5797812 A JPS5797812 A JP S5797812A
Authority
JP
Japan
Prior art keywords
rolling
mills
loads
measured
rolled
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
JP55172105A
Other languages
Japanese (ja)
Other versions
JPS6345884B2 (en
Inventor
Osamu Takahashi
Yasuo Morooka
Nobuyuki Togashi
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.)
Hitachi Ltd
Hitachi Information and Control Systems Inc
Original Assignee
Hitachi Ltd
Hitachi Control Systems Inc
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, Hitachi Control Systems Inc filed Critical Hitachi Ltd
Priority to JP55172105A priority Critical patent/JPS5797812A/en
Publication of JPS5797812A publication Critical patent/JPS5797812A/en
Publication of JPS6345884B2 publication Critical patent/JPS6345884B2/ja
Granted 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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • 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
    • B21B17/02—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, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—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, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • 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 perform a predictive control and a modification of the rolling load in high accuracy, by computing rolling conditions of rolling groups from different directions, and distributing the results to plural rolling directions in a rolling of shape steel, seamless pipe etc. CONSTITUTION:Set values of roll opening angles of the 1st and 2nd rolling mills 12 and 13 are set by a set-up device 70 before the start of rolling of material to be rolled, so that the dimensions of wall thickness and outer dia. of said material, after a rolling by said rolling mills 12 and 13, are desired dimensional, ones. An added value of rolling loads, generating at the 1st and 2nd mills 12, 13, is computed and distributed to the rolling loads of both mills 12, 13 by the device 70. Actual rolling loads, after starting the rolling, are measured by load measuring instruments 67, 68 and the outer dia. and length of the material to be rolled, after rolling the material by the 2nd mill 13, are measured by measuring instruments 65, 66. These measured signals are inputted to an adaptive device 72 so as to obtain the modification factor to be used at the computing of next rolling loads by the device 70.
JP55172105A 1980-12-08 1980-12-08 Controlling method for rolling mill Granted JPS5797812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55172105A JPS5797812A (en) 1980-12-08 1980-12-08 Controlling method for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55172105A JPS5797812A (en) 1980-12-08 1980-12-08 Controlling method for rolling mill

Publications (2)

Publication Number Publication Date
JPS5797812A true JPS5797812A (en) 1982-06-17
JPS6345884B2 JPS6345884B2 (en) 1988-09-12

Family

ID=15935632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55172105A Granted JPS5797812A (en) 1980-12-08 1980-12-08 Controlling method for rolling mill

Country Status (1)

Country Link
JP (1) JPS5797812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114010A (en) * 1984-06-29 1986-01-22 Nippon Kokan Kk <Nkk> Method for controlling rolling with mandrel mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6114010A (en) * 1984-06-29 1986-01-22 Nippon Kokan Kk <Nkk> Method for controlling rolling with mandrel mill
JPH0569606B2 (en) * 1984-06-29 1993-10-01 Nippon Kokan Kk

Also Published As

Publication number Publication date
JPS6345884B2 (en) 1988-09-12

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