JPS5772716A - Controlling method for tension of rolled stock - Google Patents

Controlling method for tension of rolled stock

Info

Publication number
JPS5772716A
JPS5772716A JP55149722A JP14972280A JPS5772716A JP S5772716 A JPS5772716 A JP S5772716A JP 55149722 A JP55149722 A JP 55149722A JP 14972280 A JP14972280 A JP 14972280A JP S5772716 A JPS5772716 A JP S5772716A
Authority
JP
Japan
Prior art keywords
rolled stock
rolls
skid mark
tension
current
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.)
Pending
Application number
JP55149722A
Other languages
Japanese (ja)
Inventor
Hajime Kobayashi
Toshimitsu Miyaki
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP55149722A priority Critical patent/JPS5772716A/en
Publication of JPS5772716A publication Critical patent/JPS5772716A/en
Pending 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

Landscapes

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

Abstract

PURPOSE: To control the tension of a rolled stock accurately by tracking a skid mark while a heated rolled stock arrives at rolls and measuring current when it passes the rolls and correcting the current in accordance with the degree of skid mark.
CONSTITUTION: The skid mark part of a rolled stock W is tracked while the heated rolled stock W is extracted from a heating furnace and passes the rolls Si of a continuous rolling mill CPM. Next, the current value when the skid mark part of the rolled stock is bitten in rolls Si of the stand is corrected in accordance with the degree of the skid mark by a corrector (k) so that variation of current due to presence of skid mark coincides with the current value when nonskid mark part is bitten in rolls Si.
COPYRIGHT: (C)1982,JPO&Japio
JP55149722A 1980-10-24 1980-10-24 Controlling method for tension of rolled stock Pending JPS5772716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149722A JPS5772716A (en) 1980-10-24 1980-10-24 Controlling method for tension of rolled stock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149722A JPS5772716A (en) 1980-10-24 1980-10-24 Controlling method for tension of rolled stock

Publications (1)

Publication Number Publication Date
JPS5772716A true JPS5772716A (en) 1982-05-07

Family

ID=15481379

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149722A Pending JPS5772716A (en) 1980-10-24 1980-10-24 Controlling method for tension of rolled stock

Country Status (1)

Country Link
JP (1) JPS5772716A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1034855A2 (en) * 1999-03-12 2000-09-13 Kawasaki Steel Corporation Rolling apparatus for bars and method for rolling bars

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1034855A2 (en) * 1999-03-12 2000-09-13 Kawasaki Steel Corporation Rolling apparatus for bars and method for rolling bars
US6253592B1 (en) 1999-03-12 2001-07-03 Kawasaki Steel Corporation Rolling apparatus for bars and method for rolling bars
EP1034855A3 (en) * 1999-03-12 2003-11-05 Kawasaki Steel Corporation Rolling apparatus for bars and method for rolling bars

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