EP0692330B1 - Procédé et dispositif de coulée continue de produits métalliques minces entre cylindres - Google Patents

Procédé et dispositif de coulée continue de produits métalliques minces entre cylindres Download PDF

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Publication number
EP0692330B1
EP0692330B1 EP95401561A EP95401561A EP0692330B1 EP 0692330 B1 EP0692330 B1 EP 0692330B1 EP 95401561 A EP95401561 A EP 95401561A EP 95401561 A EP95401561 A EP 95401561A EP 0692330 B1 EP0692330 B1 EP 0692330B1
Authority
EP
European Patent Office
Prior art keywords
closure
wall
force
walls
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.)
Expired - Lifetime
Application number
EP95401561A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0692330A1 (fr
Inventor
Jacques Barbé
François Mazodier
Luc Vendeville
Pierre Delassus
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.)
Thyssen Stahl AG
USINOR SA
Original Assignee
Thyssen Stahl AG
USINOR Sacilor SA
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 Thyssen Stahl AG, USINOR Sacilor SA filed Critical Thyssen Stahl AG
Publication of EP0692330A1 publication Critical patent/EP0692330A1/fr
Application granted granted Critical
Publication of EP0692330B1 publication Critical patent/EP0692330B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams

Definitions

  • the present invention relates to the continuous casting of thin metallic products, in particular of thin steel strips, according to the continuous casting technique between two counter-rotating cylinders, and more particularly the management of contact and lubrication between the front ends of such cylinders. and the lateral closure walls, applied against these front ends, to delimit the casting space defined between the cylinders.
  • Known installations for continuous casting between cylinders comprise two cylinders with horizontal and parallel axes, internally cooled, rotated in opposite directions, and spaced from each other by a distance corresponding to the desired thickness of the cast product. .
  • the molten metal is poured into the casting space, defined between the cylinders, solidifies on contact with them, and is extracted downwards, during their rotation, in the form of a strip. thin.
  • the lateral sealing walls are pressed against the front ends of the cylinders.
  • Such lateral closure walls are commonly made of refractory material, at least in their part brought into contact with the molten metal.
  • the document EP-A-546,206 describes a method according to which, before the start of the casting, the closure walls are strongly pressed against the rolls, in order to carry out a sort of running-in of the latter by abrasion by the edges of the cylinders, then this pressure is reduced and, during casting, we continue to move the closing walls towards the cylinders at a predetermined speed to continually ensure the continuation of voluntary wear and thus try to maintain regular contact over the entire surface of the interfaces.
  • this method does not take into account random variations in the contact conditions that may occur during casting, and leads to significant wear of the closure walls, even when the contact conditions are satisfactory and would not require causing such wear.
  • JP-A-04224052 and JP-A-63248547 propose to take into account parameters reflecting the friction which is exerted between the cylinders and the obturation walls for the management of the application of the obturation walls or the lubrication of cylinder-shutter interfaces.
  • the means proposed only make it possible to obtain an overall evaluation of the friction between a closure wall and the cylinders on which it rests.
  • the present invention therefore aims to solve the problems mentioned above and to improve the management of the contact between the closure walls and the cylinders, while avoiding significant wear of said closure walls. More particularly, the invention aims to improve knowledge of the actual state of contact between the closure walls and the cylinders, permanently during casting, in order to be able to act accordingly on the means for applying pressure and positioning of the closure walls against the cylinders.
  • the method according to the invention therefore makes it possible to much better know the actual state of the contact between the closure walls and the cylinders, since it adds to the measurements, already known, of the thrust force exerted on said wall, and of its position, a measure of a quantity representative of the friction conditions, for example a coefficient of friction. This allows you to appreciate the variations in the friction of the surfaces in contact with respect to a reference, for example in the state before the introduction of the cast metal into the casting space.
  • the means for measuring the friction force comprise, for each closure wall, two force sensors for measuring the friction forces exerted on said closure wall by each of the cylinders.
  • the means for measuring the friction force comprise, for each closure wall, two force sensors for measuring the friction forces exerted on said closure wall by each of the cylinders.
  • the force sensors are situated respectively on either side of said median plane and the closure wall is supported, in the direction of extraction, only by two support means placed respectively towards the ends lateral of said wall, and said force sensors are located in said support means.
  • the assembly 2 comprises a main carriage 5, guided in translation along the direction of the axes of the cylinders, on the frame 4.
  • the movement of the principal carriage is controlled by a jack 6 which makes it possible to adjust the position of the assembly 2, and therefore the closure wall 3, relative to the cylinders 1, as well as applying the wall 3 against the edge of the cylinders with an adjustable force.
  • the main carriage 5 carries a secondary carriage 7 guided horizontally on said main carriage 5, and therefore movable transversely to the direction of the axes of the cylinders, by a jack shown schematically at 8, to adjust the transverse position of the closure wall 3 compared to the cylinders.
  • the secondary carriage has at its upper part two pins 9, 9 'which extend horizontally, in the direction of the axes of the cylinders, and are arranged symmetrically with respect to the longitudinal median plane P of the installation.
  • the closure wall 3 made of refractory material, is held on a support plate 10 comprising two ears 12 at its upper part.
  • Each of the ears has a bore 13, 13 ', which engages on a pin 9, 9'.
  • One of the pins 9 is engaged practically without play in the corresponding bore 13, while the other bore 13 'is produced in the form of a horizontal oblong hole, so as to allow differential expansion between the support plate 10 and the secondary carriage 7 without clamping the pins 9, 9 '.
  • the closure wall 3 and its support 10 are simply suspended on the pins 9, 9 ', which include means for measuring the forces exerted on them, transverse to their axes.
  • the pins 9, 9 ′ constitute dynamometric axes, making it possible to measure the forces exerted on them by the support 10, these forces resulting from the weight of the support 10 and closure wall assembly, from the effect d 'drive down the wall 3 by the cast metal, and especially the friction of this wall against the edges of the cylinders, during their rotation.
  • the support 10 abuts by its rear face, in the direction of the axes of the cylinders, against other dynamometric axes 14, 14 ', 14' 'fixed on the secondary carriage 7, and which constitute measuring means of the horizontal force of application of the wall 3 against the cylinders.
  • F H3 is the force of application of the closing wall, in the lower part of the wall, it can decompose into a force kF H3 of application on the cylinder 1 and a force (1 - k) F H3 of application on the other cylinder 1 ′, k varying from 0 to 1 depending on whether the bottom of the obturation wall rests only on one cylinder, only on the other, or on both at the same time, k representing the distribution of F H3 between the two cylinders.
  • the dynamometric axes 9, 9 ', 14, 14', 14 '' are connected to calculation and regulation means 15, which can either display data representative of these friction coefficients, to indicate possible anomalies to the operator and allow him to remedy them by acting on various parameters of the casting, either acting directly on these parameters, for example on the force of application of the wall 3 against the cylinders by acting on the supply pressure of the cylinder 6 or on the position of the wall with respect to the edge of the cylinders, by controlling an adequate movement of the said cylinder.
  • the device also includes position sensors 16, schematically represented in FIG. 2, for example placed at the level of the support 10, and preferably arranged in a triangle, like the dynamometric axes 14, 14 ', 14' '. These sensors make it possible to detect displacements of the support 10 of the wall 3, either with respect to a fixed reference, or with respect to the edges of the cylinders, or both, and this independently for the different zones of the obturation wall. .
  • an increase in the vertical force measured by a dynamometric axis 9, 9 ' may be indicative of a lubrication defect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Moulding By Coating Moulds (AREA)
  • Coating With Molten Metal (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP95401561A 1994-06-30 1995-06-29 Procédé et dispositif de coulée continue de produits métalliques minces entre cylindres Expired - Lifetime EP0692330B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408361A FR2721844B1 (fr) 1994-06-30 1994-06-30 Procede et dispositif de coulee continue de produits metalliques minces entre cylinders
FR9408361 1994-06-30

Publications (2)

Publication Number Publication Date
EP0692330A1 EP0692330A1 (fr) 1996-01-17
EP0692330B1 true EP0692330B1 (fr) 1997-08-06

Family

ID=9465079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401561A Expired - Lifetime EP0692330B1 (fr) 1994-06-30 1995-06-29 Procédé et dispositif de coulée continue de produits métalliques minces entre cylindres

Country Status (23)

Country Link
US (1) US5638892A (sk)
EP (1) EP0692330B1 (sk)
JP (1) JP3923551B2 (sk)
KR (1) KR100358887B1 (sk)
CN (1) CN1064569C (sk)
AT (1) ATE156397T1 (sk)
AU (1) AU685624B2 (sk)
BR (1) BR9503043A (sk)
CA (1) CA2152230C (sk)
CZ (1) CZ285526B6 (sk)
DE (1) DE69500520T2 (sk)
DK (1) DK0692330T3 (sk)
ES (1) ES2105850T3 (sk)
FI (1) FI110073B (sk)
FR (1) FR2721844B1 (sk)
GR (1) GR3025229T3 (sk)
PL (1) PL179136B1 (sk)
RO (1) RO116171B1 (sk)
RU (1) RU2119843C1 (sk)
SK (1) SK281881B6 (sk)
TR (1) TR199500770A1 (sk)
UA (1) UA27956C2 (sk)
ZA (1) ZA955294B (sk)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284214B1 (it) * 1996-07-16 1998-05-14 Acciai Speciali Terni Spa Metodo di colata continua di prodotti metallici sottili ed apparecchiatura idonea alla sua esecuzione
KR100333070B1 (ko) * 1997-12-20 2002-10-18 주식회사 포스코 쌍롤식박판주조장치에서의에지댐위치제어방법
AUPP331598A0 (en) * 1998-05-04 1998-05-28 Bhp Steel (Jla) Pty Limited Strip casting
CH691574A5 (de) * 1999-09-24 2001-08-31 Main Man Inspiration Ag Bandgiessmaschine zur Erzeugung eines Metallbandes.
EP1287926B1 (en) * 2001-08-29 2006-03-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Device for lateral containment of liquid steel between crystallizing rolls of a casting machine for a steel strip
CZ301502B6 (cs) * 2002-11-21 2010-03-24 VÚTS, a.s. Zpusob stanovení koeficientu trení podélných útvaru a mericí zarízení k provádení tohoto zpusobu
DE10341250B3 (de) * 2003-09-08 2005-05-25 Thyssenkrupp Nirosta Gmbh Verfahren zum Betrieb einer Zweiwalzengießvorrichtung
DE10341249B4 (de) * 2003-09-08 2005-06-30 Thyssenkrupp Nirosta Gmbh Seitenplatte zum Abdichten eines zwischen den Gießwalzen einer Zweiwalzengießvorrichtung gebildeten Gießspalts, Zweiwalzengießvorrichtung und Verfahren zu ihrem Betrieb
US7308930B2 (en) * 2006-03-09 2007-12-18 Nucor Corporation Method of continuous casting steel strip
US7556084B2 (en) * 2006-03-24 2009-07-07 Nucor Corporation Long wear side dams
CN101802733B (zh) * 2006-12-12 2013-08-28 新东工业株式会社 用于诊断一种生产设备的工作状态的方法及系统
JP5837758B2 (ja) 2011-04-27 2015-12-24 キャストリップ・リミテッド・ライアビリティ・カンパニー 双ロール鋳造装置及びその制御方法
US10046384B2 (en) 2015-09-30 2018-08-14 Nucor Corporation Side dam with pocket
CN105562639B (zh) * 2016-02-26 2018-10-02 宝山钢铁股份有限公司 一种薄带连铸侧封板长寿命使用方法
PL3496881T3 (pl) 2016-08-10 2022-01-17 Nucor Corporation Sposób odlewania cienkiej taśmy
WO2018119333A1 (en) * 2016-12-23 2018-06-28 Nucor Corporation Adjustable side dam holder
CN110087800B (zh) * 2016-12-26 2022-02-15 宝山钢铁股份有限公司 双辊薄带连铸侧封板的安装装置及其安装方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59215255A (ja) * 1983-05-20 1984-12-05 Ishikawajima Harima Heavy Ind Co Ltd 連続鋳造方法
JPS6336954A (ja) * 1986-07-30 1988-02-17 Hitachi Ltd 双ロ−ル式連続鋳造機
JPH07108435B2 (ja) * 1987-01-19 1995-11-22 株式会社日立製作所 双ロ−ル式連続鋳造機
JPS63248547A (ja) * 1987-04-01 1988-10-14 Kawasaki Steel Corp 急冷金属薄帯の製造方法
JPH0741376B2 (ja) * 1990-06-11 1995-05-10 新日本製鐵株式会社 薄帯連続鋳造方法
JP2831136B2 (ja) * 1990-12-26 1998-12-02 新日本製鐵株式会社 薄鋳片の連続鋳造機におけるサイド堰押圧力制御方法及び装置
JPH04228243A (ja) * 1990-12-27 1992-08-18 Nippon Steel Corp 薄肉鋳片の連続鋳造機におけるサイド堰押圧装置
JPH04231149A (ja) * 1990-12-28 1992-08-20 Nippon Steel Corp 薄鋳片の連続鋳造装置
JPH0825000B2 (ja) * 1991-04-22 1996-03-13 新日本製鐵株式会社 双ドラム式薄板連続鋳造方法
JP3021170B2 (ja) * 1992-03-24 2000-03-15 三菱重工業株式会社 双ドラム式連続鋳造装置

Also Published As

Publication number Publication date
DE69500520D1 (de) 1997-09-11
BR9503043A (pt) 1996-06-11
PL309452A1 (en) 1996-01-08
FI110073B (fi) 2002-11-29
US5638892A (en) 1997-06-17
TR199500770A1 (tr) 1996-10-21
JPH0852539A (ja) 1996-02-27
FR2721844B1 (fr) 1996-08-30
CN1064569C (zh) 2001-04-18
DK0692330T3 (da) 1998-03-23
ES2105850T3 (es) 1997-10-16
CA2152230A1 (fr) 1995-12-31
KR960000353A (ko) 1996-01-25
UA27956C2 (uk) 2000-10-16
SK84695A3 (en) 1996-03-06
CZ285526B6 (cs) 1999-08-11
SK281881B6 (sk) 2001-08-06
ZA955294B (en) 1996-10-01
RU95110773A (ru) 1997-06-10
KR100358887B1 (ko) 2003-02-17
FI953188A0 (fi) 1995-06-28
PL179136B1 (pl) 2000-07-31
ATE156397T1 (de) 1997-08-15
CA2152230C (fr) 2004-12-21
RU2119843C1 (ru) 1998-10-10
RO116171B1 (ro) 2000-11-30
AU685624B2 (en) 1998-01-22
CN1128689A (zh) 1996-08-14
GR3025229T3 (en) 1998-02-27
CZ171995A3 (en) 1996-01-17
DE69500520T2 (de) 1998-03-12
AU2333795A (en) 1996-01-18
JP3923551B2 (ja) 2007-06-06
FR2721844A1 (fr) 1996-01-05
FI953188A (fi) 1995-12-31
EP0692330A1 (fr) 1996-01-17

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