JPS5630006A - Rolling method and apparatus - Google Patents

Rolling method and apparatus

Info

Publication number
JPS5630006A
JPS5630006A JP10627279A JP10627279A JPS5630006A JP S5630006 A JPS5630006 A JP S5630006A JP 10627279 A JP10627279 A JP 10627279A JP 10627279 A JP10627279 A JP 10627279A JP S5630006 A JPS5630006 A JP S5630006A
Authority
JP
Japan
Prior art keywords
constant
rolling
feed
mill
sheet thickness
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
JP10627279A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kizaki
Isao Imai
Koji Shirakawa
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP10627279A priority Critical patent/JPS5630006A/en
Publication of JPS5630006A publication Critical patent/JPS5630006A/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
    • 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
    • B21B1/222—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 rolling-drawing process; in a multi-pass mill

Landscapes

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

Abstract

PURPOSE:To make the alteration of the roll set unnecessary, and to prevent the line stop, by controlling the mill constant to a preset value according to the change of the feed-in side sheet thickness, and by carrying out the rolling work while giving the sheet a constant elongation, at the rolling method in which the sheet is wrapped around upper and lower work rolls of different velocity and the rolling work is carried out with a constant draft percentage. CONSTITUTION:At the rolling method in which the sheet 3 is wrapped in the S- shape around the upper and the lower rolls 1, 2, driven by the motor 6 to rotate at different velocity and the rolling work is carried out with a constant draft percentage, the mill constant setter 11 is installed; then, depending on the schedule of the predictable change in the feed-in side sheet thickness, the mill constant at that point of time is selected and is inputted to said mill constant setter 11, and the servo valve 13 is controlled through the controller 12 in order to adjust the amount of pressure oil to the supplied to the hydraulic cylinder 8; hereby, the condition of the constant elongation (draft percentage) is made possible to be maintained. According to this method, even if the feed-in side sheet thickness changes, the alteration of the roll set like as in case of the conventional method is made unnecessary and the line stop can be prevented.
JP10627279A 1979-08-21 1979-08-21 Rolling method and apparatus Pending JPS5630006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10627279A JPS5630006A (en) 1979-08-21 1979-08-21 Rolling method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10627279A JPS5630006A (en) 1979-08-21 1979-08-21 Rolling method and apparatus

Publications (1)

Publication Number Publication Date
JPS5630006A true JPS5630006A (en) 1981-03-26

Family

ID=14429440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10627279A Pending JPS5630006A (en) 1979-08-21 1979-08-21 Rolling method and apparatus

Country Status (1)

Country Link
JP (1) JPS5630006A (en)

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