FR2263044A1 - Automatic thickness control on a four-high rolling mill - using computer to control all the process variables - Google Patents

Automatic thickness control on a four-high rolling mill - using computer to control all the process variables

Info

Publication number
FR2263044A1
FR2263044A1 FR7506735A FR7506735A FR2263044A1 FR 2263044 A1 FR2263044 A1 FR 2263044A1 FR 7506735 A FR7506735 A FR 7506735A FR 7506735 A FR7506735 A FR 7506735A FR 2263044 A1 FR2263044 A1 FR 2263044A1
Authority
FR
France
Prior art keywords
control
rolling mill
computer
process variables
high 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.)
Granted
Application number
FR7506735A
Other languages
French (fr)
Other versions
FR2263044B1 (en
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of FR2263044A1 publication Critical patent/FR2263044A1/en
Application granted granted Critical
Publication of FR2263044B1 publication Critical patent/FR2263044B1/fr
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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions

Landscapes

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

Abstract

Appts. on a rolling mill for controlling the thickness of a rolled product passing through one stand, the novelty being that means are provided for measuring (a) the present exit thickness w.r.t. (b) the present rolling effort; (c) the present roll-gap without the workpiece; (d) the known elasticity of the rolling mill stand; (e) the plasticity (P2) of the piece; and means for (f) calculating a predetermined entry thickness; and for (g) controlling (a) taking account of (e) and using a pre-determined relationship existing between (a), (f) and a pre-determined value for (b). The plasticity (P2) is pref. obtd. using P2 = (G1 - G2)/F2 where G1 is (f) above; G2 = (a) and F2 is (b) above.
FR7506735A 1974-03-05 1975-03-04 Automatic thickness control on a four-high rolling mill - using computer to control all the process variables Granted FR2263044A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44831674A 1974-03-05 1974-03-05

Publications (2)

Publication Number Publication Date
FR2263044A1 true FR2263044A1 (en) 1975-10-03
FR2263044B1 FR2263044B1 (en) 1978-10-20

Family

ID=23779819

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7506735A Granted FR2263044A1 (en) 1974-03-05 1975-03-04 Automatic thickness control on a four-high rolling mill - using computer to control all the process variables

Country Status (3)

Country Link
JP (1) JPS50121150A (en)
BE (1) BE826284A (en)
FR (1) FR2263044A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007022841A1 (en) * 2005-08-26 2007-03-01 Sms Demag Ag Method for thickness regulation during a hot-rolling process

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2946356B2 (en) * 1989-12-26 1999-09-06 未来工業 株式会社 Concrete burying box
CN104324947A (en) * 2014-11-13 2015-02-04 广东华冠钢铁有限公司 Roll plate thickness control method and roll plate thickness control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007022841A1 (en) * 2005-08-26 2007-03-01 Sms Demag Ag Method for thickness regulation during a hot-rolling process

Also Published As

Publication number Publication date
BE826284A (en) 1975-09-04
FR2263044B1 (en) 1978-10-20
JPS50121150A (en) 1975-09-22

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Legal Events

Date Code Title Description
ST Notification of lapse