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EP1218127A1 - Cylindre de laminage - Google Patents

Cylindre de laminage

Info

Publication number
EP1218127A1
EP1218127A1 EP00958036A EP00958036A EP1218127A1 EP 1218127 A1 EP1218127 A1 EP 1218127A1 EP 00958036 A EP00958036 A EP 00958036A EP 00958036 A EP00958036 A EP 00958036A EP 1218127 A1 EP1218127 A1 EP 1218127A1
Authority
EP
European Patent Office
Prior art keywords
casting
casting roller
core
ring
longitudinal direction
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
EP00958036A
Other languages
German (de)
English (en)
Other versions
EP1218127B1 (fr
Inventor
Gerald Hohenbichler
Armin Schertler
Thomas Reiter
Günther Staudinger
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.)
Primetals Technologies Austria GmbH
Original Assignee
Voest Alpine Industrienlagenbau GmbH
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 Voest Alpine Industrienlagenbau GmbH filed Critical Voest Alpine Industrienlagenbau GmbH
Priority to AT00958036T priority Critical patent/ATE245067T1/de
Priority to SI200030175T priority patent/SI1218127T1/xx
Publication of EP1218127A1 publication Critical patent/EP1218127A1/fr
Application granted granted Critical
Publication of EP1218127B1 publication Critical patent/EP1218127B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • B22D11/0651—Casting wheels

Definitions

  • the invention relates to a casting roll for a thin strip casting system, in particular for the continuous casting of thin strips of steel, with an essentially cylindrical core, with a jacket made of copper or a copper alloy, which is optionally provided on the outside with at least one coating, with an internal cooling and with an adjusting device for adjusting the outer contour of the casting roll in its end face end regions.
  • a casting roll of this type is known for example from EP-A - 0 664 173.
  • Casting rolls of this type are used for the continuous casting of refractory metals, such as steel.
  • two casting rolls of this type are arranged parallel to each other and rotated in opposite directions about their respective axes.
  • the molten metal is poured into a gap defined between the casting rolls and cooled and solidified upon contact with the surfaces of the casting rolls provided with internal cooling and when passing through the gap, so that the metal emerges from the casting gap in the form of a substantially solidified strip.
  • the strip thickness is determined by the width of the casting gap and the strip width by the length of the casting gap, which is delimited at the end by sealing surfaces abutting the end faces of the casting rolls.
  • JP-A-60-27446 In order to reduce the roll crown occurring during continuous casting or to regulate the roll crown, it is known (JP-A-60-27446) to provide conically tapered pistons in the casting rolls. These conically tapered pistons are slidably inserted in two piston sliding spaces arranged in the opposite ends of the casting roll, so that the outer circumferential surface of the casting roll is deformed under the wedge effect of the conically tapered piston by shifting the conically tapered piston.
  • the pistons depending on the position in the piston sliding spaces, exert forces on the casting roll, that is to say the jacket of the casting roll, at different points in the longitudinal direction of the casting roll, so that an exact compensation of the roll crown, if at all, only very much difficult is possible.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a casting roll of the type described at the outset, with which it is possible to reduce or completely compensate for thermal crowning with structurally simple means.
  • the casting roller should be robust enough for long-term operation and less prone to failure.
  • the construction should be inexpensive to manufacture and ensure simple operation.
  • the adjusting device on each end face end region of the casting roller has a support disc which is adjustable in the longitudinal direction of the casting roller and which is on the inside of a radially surrounding the support disc and on the jacket in each case on its end face end regions adjacent ring, which is fixed immovably in relation to the core in the longitudinal direction of the casting roll.
  • a support disk is known per se from US-A-5,613,546 for a casting roll, but this support disk engages directly on the jacket of the casting roll and is not used to compensate for thermal conditions, but to center the jacket relative to the core.
  • the ring is sealed both from the jacket and from the core by means of a seal.
  • This ensures absolute tightness of the internal cooling of the casting roll.
  • Such a tightness is not readily given, for example, in a construction according to JP-A-60-27446.
  • the conically tapered pistons are provided inside the core and surrounded on the outside by the cooling system for the jacket. As a result, widening of the jacket by means of the pistons causes a radial displacement of the supply and discharge lines for the internal cooling of the jacket.
  • the support disk is preferably provided on its outer circumferential surface with a truncated cone surface which bears against a counter-truncated cone surface which is provided on the ring on its inner circumferential surface.
  • a structurally simple to manufacture and reliable embodiment is characterized in that for the adjustment of the support disk in the longitudinal direction of the casting roll, a plurality of screws are provided distributed around the outer circumference of the support disk, with which the support disk can be adjusted relative to the core, the screws advantageously being arranged on the core Blind holes are screwed.
  • the support disks are adjusted before the start of casting.
  • Another preferred embodiment is characterized in that the support disk is adjustable relative to the core in the longitudinal direction of the casting roll by means of an annular nut.
  • the support disk can be hydraulically adjusted in relation to the core in the longitudinal direction of the casting roller.
  • the ring expediently extends up to a maximum of 75 mm from the end region in the longitudinal direction of the casting roll to its center, preferably up to 50 mm, in particular up to
  • the jacket preferably has a thickness of less than or equal to 50 mm in its end face regions in which there is contact with the ring.
  • the steel drum 1 or the core 1 is provided with passages for an axially supply and discharge coolant.
  • This core 1 is surrounded on the outside by a jacket 2 made of copper or a copper alloy, the thickness 3 of the jacket being between 40 and 45 mm.
  • the jacket 2 has coolant channels 4 through which coolant flows on the inside, so that intensive heat dissipation via the jacket 2 is possible.
  • the length of the casting roll is about 1 to 2 m, preferably casting rolls with lengths of 1100 to 1600 mm are currently being built.
  • the jacket is provided with a nickel or chrome coating 5.
  • This coating 5 also extends over the end faces 6 of the jacket.
  • the front end regions 7 of the jacket 2 protrude beyond the steel drum or core 1 in the longitudinal direction of the casting roll, etc. by up to max. 75 mm, preferably less than 50 mm.
  • a ring 8 bears on the inside of the jacket 2, a seal 10 being provided between the outside peripheral surface 9 of the ring 8 and the jacket 2, which is inserted into a peripheral groove 11 of the ring 8.
  • the ring 8 is fixed by means of screws 12 in the axial direction of the casting roll on the core 1 and also sealed with respect to the core 1 by means of a seal 13, which is inserted into an annular groove 14 on an inner side surface 15 of the ring 8, so that coolant , which flows through the core 1 into the coolant channels 4 of the jacket 2 and in turn back into the core 1, is prevented from emerging from the casting roll.
  • the inner circumferential side 16 of the ring 8 directed towards the axis of rotation is frustoconical, etc. tapering towards the center of the casting roll.
  • annular support disk 17 On this truncated cone surface 16 there is an annular support disk 17 with an outer peripheral surface 18 which is also frustoconical, etc. opposite to the truncated cone surface 16 of the ring 8, is designed.
  • This support disk 17 is in the illustrated embodiment by means of several screws 20 screwed into blind holes 19 of the core 1 in Axial direction of the casting roll adjustable, whereby there is an expansion of the ring 8 and thus an expansion of the front end region 7 of the jacket 2 to the desired extent.
  • the screws 20 are provided in the vicinity of the outer circumference of the annular support disk 17 in order to avoid deflections or buckling of the support disk 17.
  • a particular advantage of the construction according to the invention can be seen in the fact that an adjustment of the profile of the casting roll generators in dependence on the planned and / or current casting or solidification conditions is made possible, so that the respectively appropriate or still acceptable strip thickness cross profile in the edge area can be generated without requiring complex machining processes, such as turning and grinding.
  • a very hard thin surface coating 5 e.g. a chrome layer on the jacket 2
  • each cutting profile setting would also require a new coating of the jacket 2.
  • system downtimes would also be necessary in order to be able to carry out the necessary casting roll changes.
  • several pairs of casting rolls would have to be kept in stock. According to the invention, this results in lower investment and storage costs and a lower proportion of plant downtimes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

L'invention concerne le cylindre de laminage d'une installation de laminage de minces bandes. Ce cylindre comprend un noyau sensiblement cylindrique (1), une enveloppe (2) en cuivre ou en alliage de cuivre dont l'extérieur est éventuellement doté d'au moins un revêtement (5), un refroidissement interne (4) et un dispositif de réglage (8, 17, 20) permettant de régler le contour externe du cylindre de laminage dans ses zones terminales-faces frontales (7). L'invention vise à compenser les bombements dus à la température grâce à des moyens de conception simple. A cet effet, le dispositif de réglage présente, dans chaque zone terminale-face frontale du cylindre de laminage, un disque d'appui (17) qui est réglage dans le sens longitudinal du cylindre de laminage et qui agit sur un anneau (8). Cet anneau entoure radialement le disque d'appui (17) et est en contact avec l'intérieur de l'enveloppe (2) respectivement au niveau des zones terminales-faces frontales. Cet anneau (8) est monté immobile par rapport au noyau (1) dans le sens longitudinal du cylindre de laminage.
EP00958036A 1999-09-06 2000-08-30 Cylindre de laminage Expired - Lifetime EP1218127B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT00958036T ATE245067T1 (de) 1999-09-06 2000-08-30 Giesswalze
SI200030175T SI1218127T1 (en) 1999-09-06 2000-08-30 Casting roller

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0152799A AT408199B (de) 1999-09-06 1999-09-06 Giesswalze
AT152799 1999-09-06
PCT/AT2000/000234 WO2001017712A1 (fr) 1999-09-06 2000-08-30 Cylindre de laminage

Publications (2)

Publication Number Publication Date
EP1218127A1 true EP1218127A1 (fr) 2002-07-03
EP1218127B1 EP1218127B1 (fr) 2003-07-16

Family

ID=3515499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00958036A Expired - Lifetime EP1218127B1 (fr) 1999-09-06 2000-08-30 Cylindre de laminage

Country Status (22)

Country Link
US (1) US6619375B2 (fr)
EP (1) EP1218127B1 (fr)
JP (1) JP2003508228A (fr)
KR (1) KR20020063850A (fr)
CN (1) CN1372498A (fr)
AT (1) AT408199B (fr)
AU (1) AU773091B2 (fr)
BR (1) BR0013795A (fr)
CA (1) CA2383986A1 (fr)
CZ (1) CZ2002821A3 (fr)
DE (1) DE50002926D1 (fr)
DK (1) DK1218127T3 (fr)
ES (1) ES2203507T3 (fr)
MX (1) MXPA02002348A (fr)
PL (1) PL355506A1 (fr)
RU (1) RU2229954C2 (fr)
SK (1) SK3312002A3 (fr)
TR (1) TR200200574T2 (fr)
TW (1) TW470676B (fr)
UA (1) UA69487C2 (fr)
WO (1) WO2001017712A1 (fr)
ZA (1) ZA200201805B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1316320B1 (it) * 2000-02-01 2003-04-10 Ohg Bruno Presezzi S R L Rullo di colata continua, particolarmente per la produzione di nastroin alluminio o in lega di alluminio.
DE10202523B4 (de) * 2002-01-24 2006-03-02 Fag Kugelfischer Ag & Co. Ohg Wälzlageranordnung für Rollen in Stranggießanlagen
US8607848B2 (en) * 2008-08-05 2013-12-17 Nucor Corporation Method for casting metal strip with dynamic crown control
KR101050804B1 (ko) * 2009-09-17 2011-07-20 주식회사 포스코 괴성체 제조 장치 및 이를 포함하는 용철제조장치
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
CN107081410A (zh) * 2017-04-25 2017-08-22 王宇 一种旋转冷却辊及其冷却方法
CN110000350A (zh) * 2019-05-21 2019-07-12 一重集团大连工程技术有限公司 一种铸轧结晶辊

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027446A (ja) * 1983-07-22 1985-02-12 Ishikawajima Harima Heavy Ind Co Ltd 鋳造用ロ−ル
JPS60127007A (ja) * 1983-12-14 1985-07-06 Kawasaki Steel Corp スリ−ブロ−ルを備えた板材圧延装置
JPH07121440B2 (ja) * 1987-11-19 1995-12-25 株式会社日立製作所 双ロール式連続鋳造装置
JPH0787970B2 (ja) * 1988-07-28 1995-09-27 日新製鋼株式会社 薄板連鋳機
DE3836886A1 (de) * 1988-10-29 1990-05-03 Wiegard Gustav Maschbau Fluessigkeitsgekuehlte rolle fuer stranggussanlagen
JPH03142008A (ja) * 1989-10-27 1991-06-17 Sumitomo Metal Ind Ltd クラウン調整ロール
FR2672523B1 (fr) * 1991-02-13 1995-04-21 Usinor Sacilor Virole de cylindre de coulee continue.
FR2711561B1 (fr) * 1993-10-27 1996-03-29 Usinor Sacilor Cylindre de coulée d'une installation de coulée continue sur un ou entre deux cylindres.
JPH07204792A (ja) * 1994-01-24 1995-08-08 Mitsubishi Heavy Ind Ltd ツインドラム式連続鋳造装置
AUPN053695A0 (en) * 1995-01-13 1995-02-09 Bhp Steel (Jla) Pty Limited Casting roll
FR2745510B1 (fr) * 1996-02-29 1998-05-22 Usinor Sacilor Cylindre de coulee d'une installation de coulee continue sur un ou entre deux cylindres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0117712A1 *

Also Published As

Publication number Publication date
KR20020063850A (ko) 2002-08-05
SK3312002A3 (en) 2002-12-03
DK1218127T3 (da) 2003-11-10
PL355506A1 (en) 2004-05-04
WO2001017712A1 (fr) 2001-03-15
TR200200574T2 (tr) 2002-09-23
ES2203507T3 (es) 2004-04-16
US6619375B2 (en) 2003-09-16
CN1372498A (zh) 2002-10-02
ZA200201805B (en) 2002-12-24
EP1218127B1 (fr) 2003-07-16
TW470676B (en) 2002-01-01
DE50002926D1 (de) 2003-08-21
RU2229954C2 (ru) 2004-06-10
US20020112841A1 (en) 2002-08-22
CA2383986A1 (fr) 2001-03-15
AT408199B (de) 2001-09-25
MXPA02002348A (es) 2002-08-12
UA69487C2 (uk) 2004-09-15
AU6972600A (en) 2001-04-10
BR0013795A (pt) 2002-05-14
ATA152799A (de) 2001-02-15
CZ2002821A3 (cs) 2002-08-14
AU773091B2 (en) 2004-05-13
JP2003508228A (ja) 2003-03-04

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