JPS5533851A - Screw-down force reducing rolling method - Google Patents

Screw-down force reducing rolling method

Info

Publication number
JPS5533851A
JPS5533851A JP10651278A JP10651278A JPS5533851A JP S5533851 A JPS5533851 A JP S5533851A JP 10651278 A JP10651278 A JP 10651278A JP 10651278 A JP10651278 A JP 10651278A JP S5533851 A JPS5533851 A JP S5533851A
Authority
JP
Japan
Prior art keywords
rolls
screw
force
giving
down force
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
JP10651278A
Other languages
Japanese (ja)
Inventor
Toshio Watanabe
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP10651278A priority Critical patent/JPS5533851A/en
Publication of JPS5533851A publication Critical patent/JPS5533851A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/02—Roll dimensions
    • B21B2267/06—Roll diameter
    • B21B2267/065—Top and bottom roll have different diameters; Asymmetrical rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B21B2275/05—Speed difference between top and bottom rolls

Landscapes

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

Abstract

PURPOSE: To achieve the reduction in screw-dwon force by giving bending to the material and producing shearing force in the position just near the inlet side and outlet side of rolling rolls.
CONSTITUTION: In giving bend to the material S with different speed rolling rolls 1, 2 whose peripheral speeds having the relations of V2>V1, small-diameter rolls 5, 7 and their backup rolls 6, 8 are provided just near the inlet side and outlet side of the rolls 1, 2. When the strength of the rolls 5, 7 is insufficient, backup rolls 6', 8' are used to add strength. As a result, the shearing forces r3, r4, r5, r6 by the samll-diameter rolls 5, 7 are added in addition to the shearing forces r1, r2 acting upon the material S owing to the conventional varying speed rolling, and this considerably increases shearing effect and makes a large contribution to the decrease in screw-down force. There is no restriction in the combination with varying speed screw-down rolls and it is also possible to achieve the decrease in screw-down force by giving strong bending from the outside.
COPYRIGHT: (C)1980,JPO&Japio
JP10651278A 1978-08-31 1978-08-31 Screw-down force reducing rolling method Pending JPS5533851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10651278A JPS5533851A (en) 1978-08-31 1978-08-31 Screw-down force reducing rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10651278A JPS5533851A (en) 1978-08-31 1978-08-31 Screw-down force reducing rolling method

Publications (1)

Publication Number Publication Date
JPS5533851A true JPS5533851A (en) 1980-03-10

Family

ID=14435461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10651278A Pending JPS5533851A (en) 1978-08-31 1978-08-31 Screw-down force reducing rolling method

Country Status (1)

Country Link
JP (1) JPS5533851A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018817C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Method for processing a continuously cast metal slab or belt, and plate or belt thus produced.
NL1018816C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Strip metal rolling comprises use of set of rollers rotating at different speeds
NL1018815C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Method for processing a metal slab or billet, and product made with it.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1018817C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Method for processing a continuously cast metal slab or belt, and plate or belt thus produced.
NL1018816C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Strip metal rolling comprises use of set of rollers rotating at different speeds
NL1018815C2 (en) * 2001-08-24 2003-02-25 Corus Technology B V Method for processing a metal slab or billet, and product made with it.
WO2003018223A1 (en) * 2001-08-24 2003-03-06 Corus Technology Bv Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way
WO2003022469A1 (en) * 2001-08-24 2003-03-20 Corus Technology Bv Method for processing a metal slab or billet, and product produced using said method
US7341096B2 (en) 2001-08-24 2008-03-11 Corus Technology Bv Method for processing a continuously cast metal slab or strip, and plate or strip produced in this way
US7546756B2 (en) 2001-08-24 2009-06-16 Corus Technology Bv Method for processing a metal slab or billet, and product produced using said method

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