JPS57181702A - Continuous cold rolling method that entails roll changing - Google Patents

Continuous cold rolling method that entails roll changing

Info

Publication number
JPS57181702A
JPS57181702A JP6627181A JP6627181A JPS57181702A JP S57181702 A JPS57181702 A JP S57181702A JP 6627181 A JP6627181 A JP 6627181A JP 6627181 A JP6627181 A JP 6627181A JP S57181702 A JPS57181702 A JP S57181702A
Authority
JP
Japan
Prior art keywords
rolling
draft
rolls
threshold
roll changing
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
JP6627181A
Other languages
Japanese (ja)
Inventor
Ichiro Imai
Takashi Asamura
Yoshiteru Kurata
Ikuya Yamamoto
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.)
Nippon Steel Corp
Original Assignee
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP6627181A priority Critical patent/JPS57181702A/en
Publication of JPS57181702A publication Critical patent/JPS57181702A/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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • 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
    • B21B1/24—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 in a continuous or semi-continuous process
    • B21B1/28—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 in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/20—Slip
    • 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
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing

Landscapes

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

Abstract

PURPOSE:To minimize the decrease in production efficiency owing to roll changing by stopping the rolling operation temporarily upon ending of the roll changing work, and setting the draft of the changed rolls at the threshold draft or above then continuing the rolling. CONSTITUTION:In a continuous cold rolling mill, the threshold draft at which the slip between rolls and a strip or between the rolls beings to take place is beforehand set. The threshold draft is calculated by measuring forward slips, fluctuations in tension between stands, fluctuations in plate thickness, etc. In the (i)-stand tandem rolling mills, the conditions of rolling during rolling work are changed and the rolls are changed while the rolling is accomplished in the (i-1)-stand on behalf of said rolls. After the roll changing, the rolling work is stopped for a short time of <=10sec, and the draft of the new rolls is set at the threshold draft or above, then again the rolling by the (i)-stand is continued, whereby the generation of accidents such as slips, plate breakage, chattering and the like is prevented.
JP6627181A 1981-05-01 1981-05-01 Continuous cold rolling method that entails roll changing Pending JPS57181702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6627181A JPS57181702A (en) 1981-05-01 1981-05-01 Continuous cold rolling method that entails roll changing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6627181A JPS57181702A (en) 1981-05-01 1981-05-01 Continuous cold rolling method that entails roll changing

Publications (1)

Publication Number Publication Date
JPS57181702A true JPS57181702A (en) 1982-11-09

Family

ID=13311007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6627181A Pending JPS57181702A (en) 1981-05-01 1981-05-01 Continuous cold rolling method that entails roll changing

Country Status (1)

Country Link
JP (1) JPS57181702A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774422A (en) * 2020-07-16 2020-10-16 北京首钢冷轧薄板有限公司 Method for reducing stop loss of continuous rolling mill
CN116213472A (en) * 2023-02-06 2023-06-06 首钢京唐钢铁联合有限责任公司 Method and device for controlling wear in acid rolling process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111774422A (en) * 2020-07-16 2020-10-16 北京首钢冷轧薄板有限公司 Method for reducing stop loss of continuous rolling mill
CN111774422B (en) * 2020-07-16 2022-05-03 北京首钢冷轧薄板有限公司 Method for reducing stop loss of continuous rolling mill
CN116213472A (en) * 2023-02-06 2023-06-06 首钢京唐钢铁联合有限责任公司 Method and device for controlling wear in acid rolling process

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