JPS5656713A - Controlling method for multistrand rolling mill - Google Patents

Controlling method for multistrand rolling mill

Info

Publication number
JPS5656713A
JPS5656713A JP13392079A JP13392079A JPS5656713A JP S5656713 A JPS5656713 A JP S5656713A JP 13392079 A JP13392079 A JP 13392079A JP 13392079 A JP13392079 A JP 13392079A JP S5656713 A JPS5656713 A JP S5656713A
Authority
JP
Japan
Prior art keywords
roll gap
period
taken
stand
speed
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
JP13392079A
Other languages
Japanese (ja)
Other versions
JPS6335329B2 (en
Inventor
Koichi Oba
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13392079A priority Critical patent/JPS5656713A/en
Publication of JPS5656713A publication Critical patent/JPS5656713A/en
Publication of JPS6335329B2 publication Critical patent/JPS6335329B2/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
    • B21B37/48—Tension control; Compression control
    • B21B37/52—Tension control; Compression control by drive motor control
    • 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
    • B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B2013/006—Multiple strand rolling mills; Mill stands with multiple caliber rolls
    • 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
    • B21B2037/002—Mass flow control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/20—Slip
    • 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
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control

Abstract

PURPOSE:To prevent a bad influence for the stand, when the roll gap of the strand changes, by changing the speed ratio between all stands, and by adjusting the speed ratio so as to satisfy the constancy of the mass flow. CONSTITUTION:At the rolling stand for rolling plural materials at the same time, when a material comes out of a strand, for example, when the material comes out of the strand B of the stand 20, the forward slip for the period of the large roll gap is taken as f1, and the forward slip for the period of the small roll gap is taken as f2. Besides, the backward slip for the period of the large roll gap is taken as b1, and the backward slip for the period of the small roll gap is taken as b2. The speed of each of upstream stands, the speed of the present stand, and the speed of each of downstream stands, are changed so as to satisfy the formula. Hereby, the bad condition is excluded, and the normal rolling performance can be obtained.
JP13392079A 1979-10-13 1979-10-13 Controlling method for multistrand rolling mill Granted JPS5656713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13392079A JPS5656713A (en) 1979-10-13 1979-10-13 Controlling method for multistrand rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13392079A JPS5656713A (en) 1979-10-13 1979-10-13 Controlling method for multistrand rolling mill

Publications (2)

Publication Number Publication Date
JPS5656713A true JPS5656713A (en) 1981-05-18
JPS6335329B2 JPS6335329B2 (en) 1988-07-14

Family

ID=15116169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13392079A Granted JPS5656713A (en) 1979-10-13 1979-10-13 Controlling method for multistrand rolling mill

Country Status (1)

Country Link
JP (1) JPS5656713A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008036686A (en) * 2006-08-08 2008-02-21 Kobe Steel Ltd Method of rolling rolled stock of bar steel
JP2019018232A (en) * 2017-07-19 2019-02-07 新日鐵住金株式会社 Method and system for predicting work roll wear amount

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008036686A (en) * 2006-08-08 2008-02-21 Kobe Steel Ltd Method of rolling rolled stock of bar steel
JP4627056B2 (en) * 2006-08-08 2011-02-09 株式会社神戸製鋼所 Rolling method for steel strip
JP2019018232A (en) * 2017-07-19 2019-02-07 新日鐵住金株式会社 Method and system for predicting work roll wear amount

Also Published As

Publication number Publication date
JPS6335329B2 (en) 1988-07-14

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