EP0698433A1 - Doppelroll Stanggiessmaschine mit angedrückten Seitenwände - Google Patents

Doppelroll Stanggiessmaschine mit angedrückten Seitenwände Download PDF

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Publication number
EP0698433A1
EP0698433A1 EP95401560A EP95401560A EP0698433A1 EP 0698433 A1 EP0698433 A1 EP 0698433A1 EP 95401560 A EP95401560 A EP 95401560A EP 95401560 A EP95401560 A EP 95401560A EP 0698433 A1 EP0698433 A1 EP 0698433A1
Authority
EP
European Patent Office
Prior art keywords
cylinders
plate
wall
pushing
springs
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
EP95401560A
Other languages
English (en)
French (fr)
Other versions
EP0698433B1 (de
Inventor
Jacques Barbe
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 EP0698433A1 publication Critical patent/EP0698433A1/de
Application granted granted Critical
Publication of EP0698433B1 publication Critical patent/EP0698433B1/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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/0405—Rotating moulds
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J1/00—Mechanical working of cane or the like
    • B27J1/02—Braiding, e.g. basket-making
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof

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 cooled counter-rotating cylinders. It relates more particularly to the lateral closure walls, applied against the front ends of the cylinders, to delimit the casting space defined between the cylinders, as well as their support and application means against said front ends.
  • 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. slim.
  • 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.
  • lubrication of the cylinder - end wall interface is usually provided, this is carried out by supplying a consumable lubricant or by using, at this interface, a self-lubricating material.
  • the aim is to permanently regain the interface between the shutter wall and the cylinder, so as to standardize the contact conditions as well as possible over the entire surface of this interface.
  • the document EP-A-546 206 describes a method according to which, before the start of the pouring, the closure walls are strongly pressed against the cylinders, in order to carry out a running-in of the latter by abrasion by the songs from the cylinders, then we reduce this pressure and, during casting, the closure walls are continued to move towards the cylinders at a predetermined speed in order to continually ensure the continuation of willful wear and thus attempt to maintain regular contact over the entire surface of the interfaces.
  • the present invention aims to solve these problems, and aims in particular to keep the best seal possible, throughout the flow, between a sealing wall and the two cylinders against which it is applied.
  • the plate is only supported by the push plate, ie it is mechanically linked to it only in the vertical direction and possibly horizontally, perpendicular to the axes of the cylinders.
  • the plate can move relative to the push plate on the one hand in the direction of the axes of the cylinders, and on the other hand by pivoting relative to the latter about any axis situated in the general plane of this plate, substantially orthogonal to the said axial direction.
  • the pushing members located on the side where the shutter wall is removed from the cylinder are more strongly stressed, and, in reaction, it is possible to act preferentially or only on them. without significantly changing the growth of the side of the second cylinder.
  • the pushing members can be pilot cylinders or springs.
  • the pushing members are jacks, they can then be controlled individually either by pressure or by displacement, which makes it possible to apply greater pushing just at the place where such a surcrot of pushing is required, for example in the case indicated above, on the side where a parasitic solidification occurred.
  • this surcrot of pushing is in fact generated automatically by the compression of the springs, on the side where the obturation wall is cart of the cylinders, and therefore by the increase of the force exerted by compressed springs, insofar as the position of the push plate is fixed.
  • the stiffness of each spring and the distribution of the springs in said zone are determined so that, for the same deflection of these springs, the pushing force which they exert in the lower part of the obturation wall is higher the pushing force exerted in the upper part of the wall.
  • This arrangement allows for the fact that the pressure exerts on the closure wall by the metal coul is stronger at the bottom of this wall than upwards, on the one hand because of the hydrostatic pressure of the liquid metal, on the other hand because of the rolling effect exerted by the cylinders on the metal during solidification , near the neck between the cylinders, which tends to widen the flowing strip and therefore push the bottom of the closure wall.
  • the invention also makes it possible to be able to modulate during the flow.
  • the overall bearing force by displacing said push plate 10 relative to the cylinders, while retaining the adaptability of the position of the closure wall relative to the edges of the cylinders.
  • the push plate is carried by a movable carriage 8 in said axial direction, and the device comprises means for displacing said carriage relative to the cylinders and exerting on it a force directed towards the cylinders.
  • the springs 14 all undergo additional compression, which is added that which they had before this displacement, but which preserves a similar distribution of the push on the surface of the wall 3, while accentuating more strongly the force in the zones where the springs already provided a greater effort.
  • the position of the push plate can be adjusted initially, at the time of starting, to compress the springs quite strongly, and thus ensure a sort of running in of the closing wall against the edges of the cylinders; then the overall bearing force can be reduced, in stabilized flow regime, in particular to avoid too rapid wear of the closure wall, and increased in the event of an incident, for example infiltration of liquid metal, to restore seal it as quickly as possible.
  • This support assembly comprises a rigid chassis 5, which carries a first carriage, or carriage positioning 6, adjustable in position on the chassis 5, in the axial direction to the cylinders, for example by a screw-nut system 7.
  • the positioning carriage 6 carries a second carriage 8, guided in translation in the axial direction A.
  • the position of the second carriage 8 is adjusted by a cylinder 9 for positioning and pushing.
  • the second carriage 8 supports a push plate 10, by means of two support pins 11. Furthermore, the push plate 10 is held against supports 12 linked to the carriage 8 and adjustable in position, in a manner known per se, for ensure the verticality of the growth plate 10.
  • the push plate 10 comprises a plurality of bores 13, distributed over a triangular shaped area corresponding to the shape of the closure wall.
  • a compression spring 14 bearing by one end at the bottom of the bore, and by the other end on a piston 15 sliding in the bore and comprising retaining means 16 to hold the spring and piston in the alsage.
  • the push plate 10 also has its upper part of the support blocks 17, 17 ', on which rest the ears 18, 18' of a plate 19 internally cooled and the rear face of which is in contact with the pistons 15.
  • One of the support blocks 17 has a rib 17B which engages with a reduced clearance in a corresponding groove in the ear 18, to ensure the lateral positioning of the plate according to Ox (horizontal direction), while leaving it free to rotate according to Oz (vertical direction).
  • Means 20 for lateral abutment of the lower end of the plate 19 relative to the support plate 10 are also provided to prevent tilting on the supports 17 and 17 '.
  • a plate 21 of refractory insulating material is held against the front face of the plate 19, by a cooled metal belt 22 which surrounds it and which is suspended on the plate by a hook-shaped pin 23, which rests in a cradle 24 of said plate, with a certain freedom of movement in the axial direction Oy.
  • the insulating refractory plate 21 can also move relative to the cooled belt 22, in the axial direction, and has a thickness slightly greater than that of said belt 22.
  • a second metal belt 25 surrounding the closure wall 3 which is connected to it by a refractory cement and whose thickness is also greater than that of said second belt 25, so as to exceed it. on the side of the cylinders, to avoid contact between them and the belt 25, even after maximum wear allowed.
  • the shapes and dimensions of the two refractory plates 3 and 21 and of the belts 22 and 25 are such that even when the second belt 25 is tightened on the cooled belt 22, the insulating refractory plate 21 is in contact only with the wall shutter 3, and not with said second belt 25.
  • the thickness of the insulating refractory plate 21 is greater than that of the cooled belt, the pushing force transmitted by the plate 19 is retransmitted only the closure wall 3, and not the belt 25, which quickly to create stresses between this belt and the refractory material of the closure wall, and therefore the risks of deformations thereof or its separation from the belt 25.
  • connection with the insulating refractory plate 21 is not rigid, and the hook 23 also has a certain freedom of movement in the cradle 24, in the axial direction.
  • the plate 19 is made of steel, as is the cooled belt 22, and the second belt 25 is made of a material which has good hot characteristics such as steel or cast iron, its natural cooling being assist by contact with the belt 22 cooled by an internal circulation of water.
  • the support assembly 4 is far from the cylinders, the chassis 5 being this effect provided with means, known per se, not shown, ensuring its displacement relative to the structure of the casting installation.
  • a radiation preheating furnace is then brought in front of the closure wall to carry the latter at a high temperature, the insulating refractory 21, the cooled plate 19 and the cooled belt 22 limiting the heating of the rest of the device.
  • the oven is vacuated, then the chassis 5 is brought back into position and clamped on the structure.
  • the jack 9 is then controlled to bring the closure wall in contact with the edges of the cylinders and, continuing its movement, move the push plate 10, which has the effect of compressing the springs 14.
  • the jack 9 is adjusted in position .
  • the effort it provides is transmitted to the push plate by the carriage 8 and its supports 12, and this effort is then distributed on the plate 19 by the springs; the forces supplied locally by each of said springs 14 are therefore essentially a function of the compression of these and therefore of the relative position of the plate and the push plate.
  • the closure wall 3 is applied against the cylinders 1 in a position which ensures the best possible contact. Indeed, even if, for example, the edges of the two cylinders are slightly veiled or offset axially relative to each other, the closure wall is applied against the two cylinders, with a minimum of play. However, the pushing forces, on the side of the cylinder whose edge extends beyond the other, are higher, which will cause faster wear on this side of the closure wall 3, and therefore tend to bring its general plane parallel to that of the push plate 10, conduct a more homogeneous distribution of the forces provided by the springs 14, and obtain optimal contact for sealing between the closing wall 3 and the cylinders 1.
  • the springs 14 will act so that the closure wall remains in contact with the cylinder located on this side.
  • This displacement can be detected either by a displacement sensor or by a reduction in the pushing force, resulting the fact that the springs located on the said side are thus less compressed.
  • the jack 9 can then be controlled to advance the push plate towards the cylinders, until restoring the desired force of application of the closure wall against the edge of the cylinder on the side where wear has occurred. In doing so, the forces on the other side are increased and will therefore lead to increased wear on this other side, which will have the result of bringing the closure wall parallel to the push plate, and therefore of finding the optimum seal. .
  • the springs 14 not only make it possible to absorb faults in the closure wall - cylinder contact, but tend to ensure an automatic, spontaneous correction of these faults.
  • the invention allows on the one hand to reduce this effort growth, and on the other hand to wear the sealing wall only when a disturbance of the contact appears.
  • the device according to the invention makes it possible to adjust the bearing force of the closure wall against the edge of the cylinders, in particular as a function of each tap of the run, by a simple actuation of the jack 9.
  • the springs can be replaced by pilot cylinders which will perform the same functions as the springs, starting from the measurement of their internal pressure, and from the position of the obturation wall.
  • a synchronization regulation of the wear of the closure wall, acting on all the cylinders can be combined with the individual regulation, for example by defining one of the cylinders as pilot and by controlling the others on the pilot cylinder.
  • the pilot cylinder will be the one located towards the bottom of the closure wall, that is to say near the neck between the cylinders, where the wear on the closure wall is generally more pronounced.
EP95401560A 1994-06-30 1995-06-29 Doppelroll Stanggiessmaschine mit angedrückten Seitenwände Expired - Lifetime EP0698433B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408319A FR2721843B1 (fr) 1994-06-30 1994-06-30 Disposition de coulee continue entre cylindres a parois d'obturation laterale appliquees
FR9408319 1994-06-30

Publications (2)

Publication Number Publication Date
EP0698433A1 true EP0698433A1 (de) 1996-02-28
EP0698433B1 EP0698433B1 (de) 1999-01-07

Family

ID=9465040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401560A Expired - Lifetime EP0698433B1 (de) 1994-06-30 1995-06-29 Doppelroll Stanggiessmaschine mit angedrückten Seitenwände

Country Status (23)

Country Link
US (2) US5584335A (de)
EP (1) EP0698433B1 (de)
JP (2) JP3717208B2 (de)
KR (1) KR100358886B1 (de)
CN (1) CN1054790C (de)
AT (1) ATE175369T1 (de)
AU (1) AU693548C (de)
BR (1) BR9503040A (de)
CA (1) CA2152231C (de)
CZ (1) CZ285168B6 (de)
DE (1) DE69507092T2 (de)
DK (1) DK0698433T3 (de)
ES (1) ES2128009T3 (de)
FI (1) FI110070B (de)
FR (2) FR2721843B1 (de)
PL (1) PL178494B1 (de)
RO (1) RO116711B1 (de)
RU (1) RU2112624C1 (de)
SK (1) SK281536B6 (de)
TR (1) TR199500791A1 (de)
TW (1) TW275595B (de)
UA (1) UA26353C2 (de)
ZA (1) ZA955412B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2737859A1 (fr) * 1995-08-18 1997-02-21 Usinor Sacilor Dispositif de soutien d'une face laterale d'une installation de coulee continue de bandes metalliques entre cylindres
WO1998002264A1 (en) * 1996-07-16 1998-01-22 Acciai Speciali Terni S.P.A. A method for the continuous casting of thin metal products, and apparatus for carrying out the same
EP1088609A1 (de) * 1999-09-24 2001-04-04 Heinrich Marti Main Management Inspiration Bandgiessmashine zur Erzeugung eines Mettallbandes
US7367104B2 (en) 2001-12-20 2008-05-06 Voest-Alpine Industrieanlagenbau Gmbh & Co. Method and device for the production of a trimmed metal strip

Families Citing this family (19)

* Cited by examiner, † Cited by third party
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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
AUPP331598A0 (en) * 1998-05-04 1998-05-28 Bhp Steel (Jla) Pty Limited Strip casting
FR2786716B1 (fr) * 1998-12-03 2001-01-05 Usinor Dispositif d'application d'une face laterale d'installation de coulee continue de bandes metalliques entre deux cylindres contre les faces planes des cylindres
FR2787360B1 (fr) * 1998-12-21 2001-02-02 Usinor Face laterale pour installation de coulee continue de bandes metalliques
EP1287926B1 (de) * 2001-08-29 2006-03-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Seitendammanordnung für flüssigen Stahl zwischen Kühlrollen in einer Giessmaschine
WO2005002757A1 (de) * 2003-07-01 2005-01-13 Sms Demag Aktiengesellschaft Verfahren zum betrieb einer bandgiessmaschine für die erzeugung eines metallbandes
US7556084B2 (en) * 2006-03-24 2009-07-07 Nucor Corporation Long wear side dams
US7503375B2 (en) * 2006-05-19 2009-03-17 Nucor Corporation Method and apparatus for continuously casting thin strip
US8251127B2 (en) 2008-06-24 2012-08-28 Nucor Corporation Strip casting apparatus with independent delivery nozzle and side dam actuators
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
CN102490224B (zh) * 2011-11-24 2013-12-04 浙江明筑新材料有限公司 一种改良的篱笆编织机
US10046384B2 (en) 2015-09-30 2018-08-14 Nucor Corporation Side dam with pocket
WO2018119333A1 (en) * 2016-12-23 2018-06-28 Nucor Corporation Adjustable side dam holder
RU2726543C1 (ru) * 2016-12-26 2020-07-14 Баошань Айрон Энд Стил Ко., Лтд. Удерживающее устройство боковой перегородки для непрерывного литья тонкой полосы с двумя валками и способ его установки
CN116967408A (zh) * 2019-01-28 2023-10-31 诺维尔里斯公司 用于双带式铸造机的短带侧挡件
CN110027069A (zh) * 2019-05-13 2019-07-19 郎军伟 一种制席用压脚及配合的制动元件结构
CN110815458A (zh) * 2019-11-29 2020-02-21 河北科技师范学院 一种射草式薄草帘布草方法及布草装置
CN111957915A (zh) * 2020-09-10 2020-11-20 一重集团大连工程技术有限公司 一种双辊薄带连铸铸辊侧封板自适应控制装置
CN112976199B (zh) * 2021-03-30 2023-03-28 霍邱县淮美奇工艺品有限公司 一种柳编产品加工用芦苇压片工装

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JPS579565A (en) * 1980-06-19 1982-01-19 Mitsubishi Heavy Ind Ltd Continuous casting equipment for metallic sheet
EP0212423A2 (de) * 1985-08-05 1987-03-04 Hitachi, Ltd. Stranggussvorrichtung vom Zwillingsrollentyp
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JPH0199749A (ja) * 1987-10-12 1989-04-18 Hitachi Ltd 連続鋳造機
EP0546206A1 (de) 1990-06-11 1993-06-16 Nippon Steel Corporation Verfahren zum Stranggiessen von dünnen Metallbändern
EP0556657A1 (de) * 1992-02-17 1993-08-25 Mitsubishi Jukogyo Kabushiki Kaisha Doppelrollen Stranggiessvorrichtung

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Publication number Priority date Publication date Assignee Title
JPS579565A (en) * 1980-06-19 1982-01-19 Mitsubishi Heavy Ind Ltd Continuous casting equipment for metallic sheet
EP0212423A2 (de) * 1985-08-05 1987-03-04 Hitachi, Ltd. Stranggussvorrichtung vom Zwillingsrollentyp
JPS6326243A (ja) * 1986-07-17 1988-02-03 Nippon Yakin Kogyo Co Ltd 金属薄板帯の直接鋳造装置
JPH0199749A (ja) * 1987-10-12 1989-04-18 Hitachi Ltd 連続鋳造機
EP0546206A1 (de) 1990-06-11 1993-06-16 Nippon Steel Corporation Verfahren zum Stranggiessen von dünnen Metallbändern
EP0556657A1 (de) * 1992-02-17 1993-08-25 Mitsubishi Jukogyo Kabushiki Kaisha Doppelrollen Stranggiessvorrichtung

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2737859A1 (fr) * 1995-08-18 1997-02-21 Usinor Sacilor Dispositif de soutien d'une face laterale d'une installation de coulee continue de bandes metalliques entre cylindres
EP0759335A1 (de) * 1995-08-18 1997-02-26 USINOR SACILOR Société Anonyme Stützvorrichtung für die Seitenwände einer Walzenstranggiessanlage zum Herstellen metallischer Bänder
US5704414A (en) * 1995-08-18 1998-01-06 Usinor Sacilor Device for supporting a side wall of an installation for the twin-roll continuous casting of metal strips
WO1998002264A1 (en) * 1996-07-16 1998-01-22 Acciai Speciali Terni S.P.A. A method for the continuous casting of thin metal products, and apparatus for carrying out the same
CN1076233C (zh) * 1996-07-16 2001-12-19 阿奇亚斯佩丝阿里特尔尼公司 薄金属产品的连铸方法及实现该方法的设备
US6354365B2 (en) 1996-07-16 2002-03-12 Acciai Speciali Terni S.P.A. Method for the continuous casting of thin metal products, and apparatus for carrying out the same
EP1088609A1 (de) * 1999-09-24 2001-04-04 Heinrich Marti Main Management Inspiration Bandgiessmashine zur Erzeugung eines Mettallbandes
US7367104B2 (en) 2001-12-20 2008-05-06 Voest-Alpine Industrieanlagenbau Gmbh & Co. Method and device for the production of a trimmed metal strip

Also Published As

Publication number Publication date
ZA955412B (en) 1996-09-20
JP3717208B2 (ja) 2005-11-16
CZ285168B6 (cs) 1999-05-12
CZ171895A3 (en) 1996-01-17
ES2128009T3 (es) 1999-05-01
FR2722124A1 (fr) 1996-01-12
DK0698433T3 (da) 1999-08-30
FI110070B (fi) 2002-11-29
KR100358886B1 (ko) 2003-03-04
JP4089827B2 (ja) 2008-05-28
FI953187A0 (fi) 1995-06-28
AU2331495A (en) 1996-01-18
PL309449A1 (en) 1996-01-08
SK84795A3 (en) 1996-03-06
TR199500791A1 (tr) 1996-10-21
DE69507092D1 (de) 1999-02-18
UA26353C2 (uk) 1999-08-30
FR2721843B1 (fr) 1996-08-30
EP0698433B1 (de) 1999-01-07
AU693548C (en) 2001-11-01
BR9503040A (pt) 1996-06-11
KR960000352A (ko) 1996-01-25
JPH0852538A (ja) 1996-02-27
SK281536B6 (sk) 2001-04-09
CN1115699A (zh) 1996-01-31
ATE175369T1 (de) 1999-01-15
DE69507092T2 (de) 1999-08-12
RU95110770A (ru) 1997-06-10
CA2152231C (fr) 2005-05-17
RU2112624C1 (ru) 1998-06-10
USRE37214E1 (en) 2001-06-12
RO116711B1 (ro) 2001-05-30
US5584335A (en) 1996-12-17
JP2005095985A (ja) 2005-04-14
PL178494B1 (pl) 2000-05-31
FR2721843A1 (fr) 1996-01-05
FI953187A (fi) 1995-12-31
AU693548B2 (en) 1998-07-02
CA2152231A1 (fr) 1995-12-31
CN1054790C (zh) 2000-07-26
TW275595B (de) 1996-05-11

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