JPS56148407A - Controlling method for rolling pressure of rolling mill - Google Patents

Controlling method for rolling pressure of rolling mill

Info

Publication number
JPS56148407A
JPS56148407A JP5062580A JP5062580A JPS56148407A JP S56148407 A JPS56148407 A JP S56148407A JP 5062580 A JP5062580 A JP 5062580A JP 5062580 A JP5062580 A JP 5062580A JP S56148407 A JPS56148407 A JP S56148407A
Authority
JP
Japan
Prior art keywords
variation
feed
rolling pressure
rolling
strip 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
JP5062580A
Other languages
Japanese (ja)
Inventor
Takeshi Katayama
Katsuhiko Kashiba
Seishiro Saida
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 JP5062580A priority Critical patent/JPS56148407A/en
Publication of JPS56148407A publication Critical patent/JPS56148407A/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
    • B21B37/58—Roll-force control; Roll-gap control

Landscapes

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

Abstract

PURPOSE:To control the rolling pressure at a constant value, even if the feed-in side thickness changes, by measuring the feed-in side strip thickness, and by correcting the predicted value of variation in the feed-in side rolling pressure, obtained from the predicting equation, with the predicted value of variation in the feed- in side roll gap. CONSTITUTION:A very small variation DELTAPH in the rolling pressure owing to the feed-in side strip thickness variation is calculated from the predicting equation I, and the rolling pressure variation DELTAP due to the variation in deltaf/deltah representing the difficulty of plastic work of the material is calculated form the equation II. Next, the feed-in side strip thickness H is measured and the necessary variation DELTAC in the roll gap for canceling the rolling pressure variation due to the feed-in side strip thickness variation is calculated from the predicting equation III. Then, the roll gap variation DELTAC is increased or decreased correspondingly to the thickness variation DELTAH.
JP5062580A 1980-04-17 1980-04-17 Controlling method for rolling pressure of rolling mill Pending JPS56148407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5062580A JPS56148407A (en) 1980-04-17 1980-04-17 Controlling method for rolling pressure of rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5062580A JPS56148407A (en) 1980-04-17 1980-04-17 Controlling method for rolling pressure of rolling mill

Publications (1)

Publication Number Publication Date
JPS56148407A true JPS56148407A (en) 1981-11-17

Family

ID=12864156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5062580A Pending JPS56148407A (en) 1980-04-17 1980-04-17 Controlling method for rolling pressure of rolling mill

Country Status (1)

Country Link
JP (1) JPS56148407A (en)

Similar Documents

Publication Publication Date Title
BE892959A (en) STRIP LAMINATION
JPS57109512A (en) Rolling method
JPS56148407A (en) Controlling method for rolling pressure of rolling mill
ES8306618A1 (en) Method and apparatus for automatic mill zero correction for strip width
JPS5722812A (en) Method for automatic control of plate thickness of multistand rolling mill
JPS57168716A (en) Tension controlling method of rolling material
GB1225520A (en)
JPS57146414A (en) Controlling method of sheet thickness in cold tandem mill
JPS5770002A (en) Rolling method for rough shaped billet for use of manufacturing z-shaped sheet pile
JPS57124515A (en) Controlling method for sheet thickness and surface evenness
JPS56136210A (en) Controlling method for breadth of strip
JPS57193203A (en) Rolling method for h-steel
JPS57181711A (en) Automatically controlling method of draft of rolling mill
JPS5414357A (en) Controlling method for sheet gauge
JPS546845A (en) Controlling method for flatness of rolled material
JPS5714411A (en) Method and device for controlling crooked running of strip
JPS57156821A (en) Controlling method for shape
JPS56133135A (en) Controlling method for thickness of film
JPS5564918A (en) Method and apparatus for automatic thickness control
JPS56117814A (en) Method and apparatus for controlling breadth of sheet in hot rolling mill
JPS5680311A (en) Controlling method for rolling mill
JPS5561310A (en) Method and apparatus for controlling sheet thickness
JPS55136509A (en) Controlling method for thickness of rolled sheet
JPS5653808A (en) Controlling method for sheet breadth in hot rolling mill
JPS5747516A (en) Controlling method for shape of thin sheet