JPS57206507A - Multistage cluster mill - Google Patents

Multistage cluster mill

Info

Publication number
JPS57206507A
JPS57206507A JP56089486A JP8948681A JPS57206507A JP S57206507 A JPS57206507 A JP S57206507A JP 56089486 A JP56089486 A JP 56089486A JP 8948681 A JP8948681 A JP 8948681A JP S57206507 A JPS57206507 A JP S57206507A
Authority
JP
Japan
Prior art keywords
rolls
roll
cluster mill
dia
bearings
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.)
Granted
Application number
JP56089486A
Other languages
Japanese (ja)
Other versions
JPS6238042B2 (en
Inventor
Eihiko Tsukamoto
Kazuo Morimoto
Hiroyasu Yamamoto
Kiyoshi Ooya
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.)
Mitsubishi Heavy Industries Ltd
Nippon Steel Corp
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd, Nippon Steel Corp filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP56089486A priority Critical patent/JPS57206507A/en
Priority to KR8201490A priority patent/KR860000827B1/en
Publication of JPS57206507A publication Critical patent/JPS57206507A/en
Publication of JPS6238042B2 publication Critical patent/JPS6238042B2/ja
Granted 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
    • B21B13/14—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
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working rolls

Landscapes

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

Abstract

PURPOSE:To uniformalize durability performances of the bearings of back up rolls in a multiple cluster mill, by making diameters of the back up rolls different in accordance with respective burden rolling loads. CONSTITUTION:In a multiple cluster mill consisting of at least a work roll 2, intermediate rolls 3a and 3b, and back up rolls 4a, 4b, and 4c in one side, the ratio D4:D3 of the dia. D4 of a central back up roll, which simultaneously supports two intermediate rolls 3a and 3b between back up rolls 4a-4b, to the dia. of D3 of a side back up roll 4c, which is positioned adjacently to the roll 4b and supports the roll 3b, is made to be in a range of >=0.4 and <=0.6. The side back up rolls 4a and 4c which receive large rolling loads respectively can be made sufficiently larger by making the roll 4b which receives small rolling load smaller, and durabilities of the bearings are improved on the average.
JP56089486A 1981-06-12 1981-06-12 Multistage cluster mill Granted JPS57206507A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56089486A JPS57206507A (en) 1981-06-12 1981-06-12 Multistage cluster mill
KR8201490A KR860000827B1 (en) 1981-06-12 1982-04-03 Multi-roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56089486A JPS57206507A (en) 1981-06-12 1981-06-12 Multistage cluster mill

Publications (2)

Publication Number Publication Date
JPS57206507A true JPS57206507A (en) 1982-12-17
JPS6238042B2 JPS6238042B2 (en) 1987-08-15

Family

ID=13972065

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56089486A Granted JPS57206507A (en) 1981-06-12 1981-06-12 Multistage cluster mill

Country Status (2)

Country Link
JP (1) JPS57206507A (en)
KR (1) KR860000827B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169606A (en) * 1983-03-16 1984-09-25 Kobe Steel Ltd Multiroll mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59169606A (en) * 1983-03-16 1984-09-25 Kobe Steel Ltd Multiroll mill

Also Published As

Publication number Publication date
KR830009812A (en) 1983-12-23
JPS6238042B2 (en) 1987-08-15
KR860000827B1 (en) 1986-07-02

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