JPS5510341A - Rolling mill - Google Patents

Rolling mill

Info

Publication number
JPS5510341A
JPS5510341A JP8307978A JP8307978A JPS5510341A JP S5510341 A JPS5510341 A JP S5510341A JP 8307978 A JP8307978 A JP 8307978A JP 8307978 A JP8307978 A JP 8307978A JP S5510341 A JPS5510341 A JP S5510341A
Authority
JP
Japan
Prior art keywords
rolls
offset
work
rolling mill
magnitude
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
JP8307978A
Other languages
Japanese (ja)
Inventor
Hidetoshi Nishi
Toshiyuki Kajiwara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8307978A priority Critical patent/JPS5510341A/en
Publication of JPS5510341A publication Critical patent/JPS5510341A/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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls
    • 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
    • B21B37/007—Control for preventing or reducing vibration, chatter or chatter marks

Abstract

PURPOSE: To prevent abnormal vibrations of the rolling mill and improve the dimensional accuracy of the material to be rolled by providing the magnitude of offset wherein the offset angle through specified calculation is above 0.6° between the work rolls and intermediate rolls in the rolling mill.
CONSTITUTION: In the rolling mill consisting of work rolls 1, 2, intermediate rolls 13, 14 and backup rolls 3, 4, the sum of the work roll diameter Dw and intermediate roll diameter D1 becomes an offset unnecessary region when it is smaller than 1000 mm according to conventional embodiments, but as a result of actual measurements, roll fluctuations were observed. The causes for this and the necessary magnitude of offset are clarified by separate calculations and the offset angle dividing the magnitude of offset by the sum of the work roll radius and intermediate roll radius is made 0.6° or over, whereby the fluctuations during rolling of the work rolls 1, 2 are perfectly prevented. It is further effective if the work rolls 1, 2 and back rolls 3, 4 are arranged within the same perpendicular plane.
COPYRIGHT: (C)1980,JPO&Japio
JP8307978A 1978-07-10 1978-07-10 Rolling mill Pending JPS5510341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8307978A JPS5510341A (en) 1978-07-10 1978-07-10 Rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8307978A JPS5510341A (en) 1978-07-10 1978-07-10 Rolling mill

Publications (1)

Publication Number Publication Date
JPS5510341A true JPS5510341A (en) 1980-01-24

Family

ID=13792167

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8307978A Pending JPS5510341A (en) 1978-07-10 1978-07-10 Rolling mill

Country Status (1)

Country Link
JP (1) JPS5510341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06285599A (en) * 1992-09-14 1994-10-11 Shinagawa Refract Co Ltd Nozzle for continuous casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06285599A (en) * 1992-09-14 1994-10-11 Shinagawa Refract Co Ltd Nozzle for continuous casting

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