JPS5522420A - Six-stage roll - Google Patents

Six-stage roll

Info

Publication number
JPS5522420A
JPS5522420A JP9411378A JP9411378A JPS5522420A JP S5522420 A JPS5522420 A JP S5522420A JP 9411378 A JP9411378 A JP 9411378A JP 9411378 A JP9411378 A JP 9411378A JP S5522420 A JPS5522420 A JP S5522420A
Authority
JP
Japan
Prior art keywords
rolls
roll
working
tapered parts
rolling
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
JP9411378A
Other languages
Japanese (ja)
Inventor
Kozo Yamazaki
Yasuo Hamamoto
Motokatsu Okuyama
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
Nippon Steel Corp
Original Assignee
Hitachi Ltd
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 Hitachi Ltd, Nippon Steel Corp filed Critical Hitachi Ltd
Priority to JP9411378A priority Critical patent/JPS5522420A/en
Publication of JPS5522420A publication Critical patent/JPS5522420A/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
    • B21B13/142—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 by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE:To reduce wear and seizure of intermediate rolls and extend their service life by installing intermediate rolls between working rolls and back up rolls and forming tapered parts of specified dimension at the end of the working rolls. CONSTITUTION:In a 6-stage roll consisting of back up rolls 1, intermediate rolls movable in axial direction 2 and working rolls 3, tapered parts with inclination of 0.3 deg.-3 deg. are formed over the extent of l, more than 30mm in direction of length of the drum from the end of working roll when rolling the material to be rolled 4. When rolling work is executed with the intermediate rolls made open, the contact pressure between the end of the working roll 3 and the drum part of the intermediate roll 2 at A will not become excessively great due to existence of the tapered parts and little damage will occur at point A of the intermediate roll 2.
JP9411378A 1978-08-03 1978-08-03 Six-stage roll Pending JPS5522420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9411378A JPS5522420A (en) 1978-08-03 1978-08-03 Six-stage roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9411378A JPS5522420A (en) 1978-08-03 1978-08-03 Six-stage roll

Publications (1)

Publication Number Publication Date
JPS5522420A true JPS5522420A (en) 1980-02-18

Family

ID=14101372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9411378A Pending JPS5522420A (en) 1978-08-03 1978-08-03 Six-stage roll

Country Status (1)

Country Link
JP (1) JPS5522420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717309A (en) * 1980-07-07 1982-01-29 Hitachi Ltd Rolling roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717309A (en) * 1980-07-07 1982-01-29 Hitachi Ltd Rolling roll
JPS6018243B2 (en) * 1980-07-07 1985-05-09 株式会社日立製作所 rolling roll

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