EP0894556A1 - Seitenwand für eine Zweirollenstranggiessanlage zur Herstellung von dünnen Metallbändern - Google Patents

Seitenwand für eine Zweirollenstranggiessanlage zur Herstellung von dünnen Metallbändern Download PDF

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Publication number
EP0894556A1
EP0894556A1 EP98401491A EP98401491A EP0894556A1 EP 0894556 A1 EP0894556 A1 EP 0894556A1 EP 98401491 A EP98401491 A EP 98401491A EP 98401491 A EP98401491 A EP 98401491A EP 0894556 A1 EP0894556 A1 EP 0894556A1
Authority
EP
European Patent Office
Prior art keywords
casting
recess
refractory
refractory material
cylinders
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
EP98401491A
Other languages
English (en)
French (fr)
Other versions
EP0894556B1 (de
Inventor
Jean-Michel Damasse
Christophe Ganser
Dominique Themines
Paul-Victor Riboud
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 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 SA filed Critical Thyssen Stahl AG
Publication of EP0894556A1 publication Critical patent/EP0894556A1/de
Application granted granted Critical
Publication of EP0894556B1 publication Critical patent/EP0894556B1/de
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
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/066—Side dams
    • 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

Definitions

  • the invention relates to the continuous casting of metals, and more particularly installations for casting metal strips, in particular steel, of a few mm thick, between two counter-rotating cylinders with horizontal axes, internally cooled.
  • the object of the invention is to propose a lateral face configuration which avoids that the degradation of the positive insert has harmful consequences on the quality of the tape and the flow of the casting.
  • the invention relates to a lateral face for closing off the space.
  • casting of a continuous casting installation of metal strips between two cylinders close counter-rotating with horizontal axes of the type having a lower part in a first refractory material, of high hardness, in the zone where said lower part is in contact with the edges of said cylinders, or of liquid metal likely to be in progress solidification, or an edge of the solidified strip, characterized in that said part lower comprises, on its face intended to be turned in the direction of the pouring space, a recess filled with a refractory material.
  • said refractory material enclosed by said recess is a material having a lower hardness than said first refractory material and high heat insulating properties.
  • the invention consists in giving the lateral face in its lowest part a bilayer structure, designed so that when the stresses exerted on the upper layer by the solidified metal become significant, it degrades without this degradation being able to extend to higher levels of the face lateral. This gives us the opportunity to control the unfolding of a phenomenon which, if occurred out of control, could lead to serious disruption of the operation of the casting machine.
  • the prior art casting installation between cylinders shown in the Figures 1 and 2 comprises, conventionally, two cylinders 1, 1 'close to horizontal axes whose cylindrical side walls 2, 2 'are energetically cooled internally. They are rotated in opposite directions by known means not shown.
  • the space of casting, in which the liquid steel 3 is introduced by a nozzle (not shown) connected to a container such as a pocket or a distributor, is delimited by the side walls 2, 2 ' cylinders 1, 1 'and by side faces 4, 4' made of refractory material (the side face 4 ' is not shown in Figure 1 to make visible the constitution of the side face 4).
  • FIG 2a shows the installation at the very start of casting, while the side faces 4, 4 ' are new and have facing the edges 5, 5 'of the cylinders, the liquid steel 3 and the strip 7 a uniformly flat front face.
  • Figure 2b shows the same installation at a later stage of casting, while the side faces 4, 4 'have already undergone a significant wear.
  • the central part 11 has been consumed at a depth "e” relatively significant by corrosion and mechanical wear in contact with liquid steel 3 in movement.
  • the hard material portions 8, 9 and 10 were worn by friction on a depth "x" in their zones which face the edges 5, 5 'of the cylinders 1, 1', while their zones not subjected to the friction of the edges 5, 5 ′ have, in the ideal case shown, no wear.
  • this positive insert 12 is subjected on its front part to intense stresses on the part of the steel 3 which may be, in its vicinity, already in a state partially solidified. Its lateral parts are likewise subject to contact with the skins. of solidified metal against the cylinders. Consequently, under the effect of these various stresses, there is a periodic and uncontrolled rupture of the lower part of the positive insert 12, along a generally irregular line 13.
  • this rupture extends relatively deep into the refractory, to the point of destroying sealing the casting space and leaving the possibility for liquid steel 14 to escape out of this space by a crevice 15. This is, in particular, the case if the rupture propagates upwards from positive insert 12, therefore towards regions where the metal which borders the lateral face 4, 4 ′ is entirely in the liquid state. If this steel 14 gets immediately solidifies between the side face 4 and the edge 5, it causes the face to recede lateral 4 and contributes a little more to its deterioration, as well as to that of edge 5. If the breach 15 opens to the outside, the liquid steel 14 can flow out of the machine casting with all the risks that this entails for the installation and the personnel.
  • the longitudinal sections in depth of the recess 16 and of the refractory 17 which fills it have the shape of a rectangular trapezium whose point is oriented towards the part upper part of the pouring space, and the large base of which is located opposite this same pouring space.
  • This large base extends over a height "h 1 " above the level of the neck 6, "h 1 " being equal to, for example, 70 mm (this value does not include the part of the small face intended for extend under the neck 6 after its installation).
  • the small base of the trapezoid, located at the rear of the recess extends over a height "h 2 " above the level of the neck 6, equal, for example, to 55 mm.
  • the recess 16 has a maximum depth "p" equal to, for example, 15 mm. "p" must be greater than the maximum tolerated value of the wear of the parts 8, 9, 10 of hard material of the lateral face 4, 4 ′, so that the refractory 17 which fills it can play its role during the assembly of casting.
  • Figure 4 shows in operation a casting installation between cylinders equipped with side faces 4, 4 'according to the invention, under the same conditions as the installation shown in Figure 2b.
  • a positive insert 12 of maximum thickness "x" at the levels where the side faces 4, 4 'are formed by the hard refractory 10.
  • the parts of the side faces 4, 4 'According to the invention which face the strip 7 or areas where the metal 3 is in the partially solidified state undergo wear the quantitative importance of which is a function of the stresses to which they are subjected. These stresses tend to increase with the solid fraction of the metal 3, and consequently, the penetration depth of the positive insert 12 decreases as one approaches the neck 6.
  • the positive insert 12 can possibly, as shown in Figure 4, be fully consumed.
  • the refractory 17 lining the recess 16 of each lateral face 4, 4 ′ according to the invention does not have a very high hardness, its wear is regular and we do not normally observe the presence of rupture lines of tormented shapes and random as line 13 in Figure 2b.
  • this rupture would necessarily stop at the limits of the recess 16.
  • the recess 16 has a section longitudinal trapezoidal shape. We therefore aim to ensure that, once the consumption of refractory 17 primed, the hard refractory 10 exposed to the liquid metal 3 or partially solidified a beveled surface offering only a relatively limited grip mechanical wear. A rectangular section for this recess 16 would leave after wear of the refractory 17 a hard refractory 10 having a sharp angle making it more sensitive to wear and more prone to sudden and irregular ruptures. That said, such a section rectangular of the recess 16 would essentially remain within the spirit of the invention.
  • the recess 16 has a section longitudinal in the shape of a right triangle.
  • the invention can easily be adapted to lateral faces which would have shapes different from the one shown in the previous example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Building Environments (AREA)
  • Coating With Molten Metal (AREA)
  • Braking Arrangements (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pipe Accessories (AREA)
EP98401491A 1997-07-04 1998-06-18 Seitenwand für eine Zweirollenstranggiessanlage zur Herstellung von dünnen Metallbändern Expired - Lifetime EP0894556B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9708447A FR2765504B1 (fr) 1997-07-04 1997-07-04 Face laterale d'obturation de l'espace de coulee d'une installation de coulee continue entre cylindres de bandes minces metalliques
FR9708447 1997-07-04

Publications (2)

Publication Number Publication Date
EP0894556A1 true EP0894556A1 (de) 1999-02-03
EP0894556B1 EP0894556B1 (de) 2002-07-17

Family

ID=9508828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401491A Expired - Lifetime EP0894556B1 (de) 1997-07-04 1998-06-18 Seitenwand für eine Zweirollenstranggiessanlage zur Herstellung von dünnen Metallbändern

Country Status (23)

Country Link
US (1) US6082437A (de)
EP (1) EP0894556B1 (de)
JP (1) JPH1177253A (de)
KR (1) KR100537323B1 (de)
CN (1) CN1074694C (de)
AT (1) ATE220584T1 (de)
AU (1) AU740876B2 (de)
BR (1) BR9802349A (de)
CA (1) CA2242684A1 (de)
CZ (1) CZ289390B6 (de)
DE (1) DE69806549T2 (de)
DK (1) DK0894556T3 (de)
ES (1) ES2178126T3 (de)
FR (1) FR2765504B1 (de)
PL (1) PL186206B1 (de)
PT (1) PT894556E (de)
RO (1) RO118854B1 (de)
RU (1) RU2201839C2 (de)
SK (1) SK283481B6 (de)
TR (1) TR199801294A3 (de)
TW (1) TW415858B (de)
UA (1) UA54407C2 (de)
ZA (1) ZA985801B (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284201B1 (it) * 1996-07-31 1998-05-08 Sviluppo Materiali Spa Piastre con riporti ceramici antiusura per macchine per colata conntinua di corpi piani sottili e procedimento per la loro
AT412195B (de) * 2002-06-25 2004-11-25 Voest Alpine Ind Anlagen Verfahren zur erzeugung eines metallbandes mit einer zweiwalzengiesseinrichtung
FR2842130B1 (fr) * 2002-07-12 2004-10-15 Usinor Face laterale pour installation de coulee continue de bandes metalliques entre deux cylindres
CH697156A5 (de) * 2004-09-17 2008-05-30 Main Man Inspiration Ag Seitenabdichtung eines zwischen zwei Giessrollen einer Bandgiessmaschine gebildeten Giessspaltes.
CN100368120C (zh) * 2005-12-02 2008-02-13 重庆大学 双辊连铸镁合金薄带浇铸装置
US7556084B2 (en) * 2006-03-24 2009-07-07 Nucor Corporation Long wear side dams
US8042601B2 (en) * 2006-03-24 2011-10-25 Nucor Corporation Side dam with insert
JP5012353B2 (ja) * 2007-09-19 2012-08-29 株式会社Ｉｈｉ 双ロール鋳造機の操業方法及びサイド堰支持装置
US8191610B2 (en) * 2008-11-24 2012-06-05 Nucor Corporation Strip casting apparatus with improved side dam
US7888158B1 (en) * 2009-07-21 2011-02-15 Sears Jr James B System and method for making a photovoltaic unit
CN102266930B (zh) * 2011-04-26 2012-06-13 江苏标新久保田工业有限公司 密封钢液的挡板装置与制作方法及应用该挡板装置的模具
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
KR101482350B1 (ko) * 2012-12-27 2015-01-13 주식회사 포스코 쌍롤식 박판 주조장치
US9533347B2 (en) * 2013-11-14 2017-01-03 Posco Casting roll for twin-roll strip caster
US10046384B2 (en) 2015-09-30 2018-08-14 Nucor Corporation Side dam with pocket
CN106541092B (zh) * 2016-11-25 2018-03-27 江西理工大学 一种双辊薄带连铸用侧封板及其使用方法
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62212041A (ja) * 1986-03-11 1987-09-18 Kawasaki Steel Corp 薄鋳片連続鋳造用短辺鋳型
EP0403412A1 (de) * 1989-06-15 1990-12-19 Usinor Sacilor Seitenwand für eine Stranggiessvorrichtung mit beweglichen Wänden
EP0432073A1 (de) * 1989-12-07 1991-06-12 USINOR SACILOR Société Anonyme Einrichtung zum Stranggiessen von dünnen metallischen Produkten zwischen zwei Walzen
EP0477045A1 (de) * 1990-09-03 1992-03-25 Usinor Sacilor Zweiwalzenstranggiessanlage

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148646A (ja) * 1984-01-11 1985-08-05 Mitsubishi Heavy Ind Ltd ツインドラム方式の薄板連続鋳造装置
JPS60162558A (ja) * 1984-02-03 1985-08-24 Mitsubishi Heavy Ind Ltd 薄板連続鋳造装置
JPS635855A (ja) * 1986-06-25 1988-01-11 Kawasaki Steel Corp 薄鋳片連続鋳造用短辺鋳型
JPS642764A (en) * 1987-06-25 1989-01-06 Kawasaki Steel Corp Short side plate in continuous casting machine for cast strip
JPH07102426B2 (ja) * 1988-06-20 1995-11-08 株式会社日立製作所 双ロール式連続鋳造装置
DE68906312T2 (de) * 1988-06-24 1993-08-12 Hitachi Ltd Begrenzungswand fuer bandstranggiessanlagen.
FR2671991A1 (fr) * 1991-01-25 1992-07-31 Usinor Sacilor Materiau refractaire pour petite face d'une installation de coulee continue des metaux entre cyclindres, et petite face ainsi realisee.
FR2686278A1 (fr) * 1992-01-17 1993-07-23 Usinor Sacilor Dispositif de coulee continue entre cylindres comportant des parois laterales en materiaux refractaires.
JPH09155509A (ja) * 1995-12-01 1997-06-17 Toshiba Ceramics Co Ltd ツインロール式ストリップキャスト用サイドダム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62212041A (ja) * 1986-03-11 1987-09-18 Kawasaki Steel Corp 薄鋳片連続鋳造用短辺鋳型
EP0403412A1 (de) * 1989-06-15 1990-12-19 Usinor Sacilor Seitenwand für eine Stranggiessvorrichtung mit beweglichen Wänden
EP0432073A1 (de) * 1989-12-07 1991-06-12 USINOR SACILOR Société Anonyme Einrichtung zum Stranggiessen von dünnen metallischen Produkten zwischen zwei Walzen
EP0477045A1 (de) * 1990-09-03 1992-03-25 Usinor Sacilor Zweiwalzenstranggiessanlage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 067 (M - 673) 2 March 1988 (1988-03-02) *

Also Published As

Publication number Publication date
CA2242684A1 (fr) 1999-01-04
US6082437A (en) 2000-07-04
ZA985801B (en) 1999-01-14
ES2178126T3 (es) 2002-12-16
CZ210998A3 (cs) 1999-01-13
BR9802349A (pt) 1999-10-13
JPH1177253A (ja) 1999-03-23
CN1074694C (zh) 2001-11-14
FR2765504A1 (fr) 1999-01-08
ATE220584T1 (de) 2002-08-15
AU7310598A (en) 1999-01-14
FR2765504B1 (fr) 1999-08-20
EP0894556B1 (de) 2002-07-17
KR19990013592A (ko) 1999-02-25
UA54407C2 (uk) 2003-03-17
RU2201839C2 (ru) 2003-04-10
TR199801294A2 (xx) 1999-10-21
SK90798A3 (en) 1999-01-11
DE69806549D1 (de) 2002-08-22
RO118854B1 (ro) 2003-12-30
PL186206B1 (pl) 2003-11-28
AU740876B2 (en) 2001-11-15
CZ289390B6 (cs) 2002-01-16
DE69806549T2 (de) 2003-01-16
DK0894556T3 (da) 2002-10-28
PT894556E (pt) 2002-10-31
CN1210769A (zh) 1999-03-17
TR199801294A3 (tr) 1999-10-21
SK283481B6 (sk) 2003-08-05
PL327222A1 (en) 1999-01-18
KR100537323B1 (ko) 2006-03-09
TW415858B (en) 2000-12-21

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