JPS56148401A - Differential rolling mill - Google Patents

Differential rolling mill

Info

Publication number
JPS56148401A
JPS56148401A JP5264580A JP5264580A JPS56148401A JP S56148401 A JPS56148401 A JP S56148401A JP 5264580 A JP5264580 A JP 5264580A JP 5264580 A JP5264580 A JP 5264580A JP S56148401 A JPS56148401 A JP S56148401A
Authority
JP
Japan
Prior art keywords
rolling mill
work roll
roll
offsetting
rolls
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
JP5264580A
Other languages
Japanese (ja)
Inventor
Hiroyuki Shiozaki
Sadahiko Shintani
Seiji Koide
Tatsuo Itai
Kiyoshi Kizaki
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 JP5264580A priority Critical patent/JPS56148401A/en
Publication of JPS56148401A publication Critical patent/JPS56148401A/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
    • 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
    • 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
    • B21B2013/025—Quarto, four-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
    • B21B2275/00—Mill drive parameters
    • B21B2275/02—Speed
    • B21B2275/04—Roll speed
    • B21B2275/05—Speed difference between top and bottom rolls

Abstract

PURPOSE: To prevent generation of play in the work roll chock of a differential rolling mill, and to make the differential rolling mill stably perform the rolling work, by offsetting the high-speed side lower work roll to the feed-in side of the rolling mill, and by offsetting the low-speed side upper work roll to the run-out side of the rolling mill, both in respect of the upper and lower backup rolls.
CONSTITUTION: If the upper work roll 1 is rotated at a low speed and the lower work roll 3 is rotated at a high speed, the axial center of the upper work roll 1 is offset to the run-out side of the rolling mill in respect of the axial center of the upper backup roll 5. Then, the axial center of the lower work roll 3 is offset to the feed-in side of the rolling mill from the axial center of the lower backup roll 6; besides, the axial centers of the upper and lower work rolls 1 and 3 are aligned on the same vertical line, but the axial centers of the upper and lower backup rolls 5 and 6 are shifted from the same vertical line mutually to the opposite sides. On the other hand, if the upper work roll 1 is to be rotated at a high speed, the offsetting directions of upper and lower work rolls 1 and 3 in respect of upper and lower backup rolls 5 and 6 are made inverse as compared with above-mentioned offsetting directions.
COPYRIGHT: (C)1981,JPO&Japio
JP5264580A 1980-04-21 1980-04-21 Differential rolling mill Pending JPS56148401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5264580A JPS56148401A (en) 1980-04-21 1980-04-21 Differential rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5264580A JPS56148401A (en) 1980-04-21 1980-04-21 Differential rolling mill

Publications (1)

Publication Number Publication Date
JPS56148401A true JPS56148401A (en) 1981-11-17

Family

ID=12920570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5264580A Pending JPS56148401A (en) 1980-04-21 1980-04-21 Differential rolling mill

Country Status (1)

Country Link
JP (1) JPS56148401A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656708A (en) * 1979-10-12 1981-05-18 Kawasaki Steel Corp Rolling mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5656708A (en) * 1979-10-12 1981-05-18 Kawasaki Steel Corp Rolling mill

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