JPS55161506A - Preventing method for tail-draw of continuous rolling mill - Google Patents

Preventing method for tail-draw of continuous rolling mill

Info

Publication number
JPS55161506A
JPS55161506A JP7027279A JP7027279A JPS55161506A JP S55161506 A JPS55161506 A JP S55161506A JP 7027279 A JP7027279 A JP 7027279A JP 7027279 A JP7027279 A JP 7027279A JP S55161506 A JPS55161506 A JP S55161506A
Authority
JP
Japan
Prior art keywords
stand
strip
crown
rolled material
tail
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
JP7027279A
Other languages
Japanese (ja)
Other versions
JPS5937683B2 (en
Inventor
Osamu Tanda
Yasuyoshi Shirai
Hiromi Matsumoto
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP54070272A priority Critical patent/JPS5937683B2/en
Publication of JPS55161506A publication Critical patent/JPS55161506A/en
Publication of JPS5937683B2 publication Critical patent/JPS5937683B2/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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/24—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/28—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 plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/06—Threading
    • B21B2273/10—Threading-out or after threading-out
    • 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering

Landscapes

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

Abstract

PURPOSE:To give a convex crown to the rolled material, to prevent the meandering motion, and to improve the rolling efficiency, by detecting the pass-through of the strip tail from the former stand, and by giving the concave crown to the roll of the rolling stand. CONSTITUTION:The load cell or the rolled material detector of the No.3 stand in the former stage, detects the pass-through of the rolled material. Then, the setter 8 of the No.4 stand sets an oil pressure for the roll bender 91 so as to enlarge the strip crown. Hereby, the pressure of the decrease benders 101-104 is raised, and/or the pressure of the increase benders is lowered, and the rolls 3, 4, are given a concave crown, and the strip 1 is given a large convex crown. Next, the No.4 stand is stopped when the tail of the strip 1 passes over, and the oil pressure for the roll bender 91 is returned to the initial set point. Besides, it may be possible to detect the pass- through by the rolled material detector in front of the No.3 stand, and to input the detecting signal to the arithmetic unit 71 through the timer.
JP54070272A 1979-06-04 1979-06-04 Method for preventing bottom drawing in continuous rolling mills Expired JPS5937683B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54070272A JPS5937683B2 (en) 1979-06-04 1979-06-04 Method for preventing bottom drawing in continuous rolling mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54070272A JPS5937683B2 (en) 1979-06-04 1979-06-04 Method for preventing bottom drawing in continuous rolling mills

Publications (2)

Publication Number Publication Date
JPS55161506A true JPS55161506A (en) 1980-12-16
JPS5937683B2 JPS5937683B2 (en) 1984-09-11

Family

ID=13426712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54070272A Expired JPS5937683B2 (en) 1979-06-04 1979-06-04 Method for preventing bottom drawing in continuous rolling mills

Country Status (1)

Country Link
JP (1) JPS5937683B2 (en)

Also Published As

Publication number Publication date
JPS5937683B2 (en) 1984-09-11

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