EP0979154B1 - Giesswalze - Google Patents
Giesswalze Download PDFInfo
- Publication number
- EP0979154B1 EP0979154B1 EP98924242A EP98924242A EP0979154B1 EP 0979154 B1 EP0979154 B1 EP 0979154B1 EP 98924242 A EP98924242 A EP 98924242A EP 98924242 A EP98924242 A EP 98924242A EP 0979154 B1 EP0979154 B1 EP 0979154B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- casting roll
- guide element
- casting
- coolant
- 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
Links
Images
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
- B22D11/068—Accessories therefor for cooling the cast product during its passage through the mould surfaces
- B22D11/0682—Accessories therefor for cooling the cast product during its passage through the mould surfaces by cooling the casting wheel
Definitions
- the invention relates to a casting roll for the continuous casting of a metal strip, preferably a steel strip in a thickness range from 1 mm to 12 mm, Consisting of a roller core and one wound on the roller core Roller jacket made of thermally conductive material, being between the roller core and circumferential cooling slots are arranged, which with substantially radial supply and discharge lines for the coolant and with a means for deflecting the Coolant are connected.
- a casting roll of this type is from IT-PS 1 255 817 and from DE-A 196 12 202, Fig. 1 and 1a, and the associated description known. It consists of a roller core and a the roll core shrunk onto the inside of the roll running cooling slots are incorporated, but do not circulate continuously. Coolant is supplied centrally through the casting roll neck and via radial Arranged collecting channels supplied to the circular cooling slots and from dissipated in an analogous manner.
- the roller jacket has a collecting channels and the cooling slots Thickness change due to the cooling slots not running all the way around is necessary to ensure the separation of incoming and outgoing coolant and which in operation lead to different radial and axial deformations of the Roll cover at this point leads, both for the production process itself and are disadvantageous for the product produced.
- it comes through Deformations to thickness deviations on the product produced on the other hand found that it was caused by the alternating heating following the roll rotation and cooling the roll shell to slowly twist the Roll shell comes to the roll core, which also by installing a positive locking against rotation could not be remedied satisfactorily. This twist can to a large extent lead to a short-circuit flow between supply and discharge, as it must be avoided.
- the invention aims to avoid these disadvantages and difficulties and provides the task of creating a casting roll of the type described in the opening paragraph minimized coolant consumption and clearly defined flow conditions enables uniform heat dissipation from the roll shell and the thermal conditional migration efforts of the roll shell towards the roll core allows.
- Another object of the invention is a constructive and manufacturing technology simple casting roller with rotationally symmetrical roller shell to propose whose thermal expansion is free of mechanical Disabilities are possible.
- each cooling slot is a guide element assigned.
- a preferred embodiment, which is easy to assemble is characterized in that several adjacent cooling slots a common guide element is assigned.
- the guide element is comb-like, with its individual teeth in their width and depth essentially with the width and depth of the cooling slots to match.
- the guide element is made up of plate-shaped individual elements which alternately form teeth and gaps and with one the plate-shaped Connecting element penetrating individual elements, preferably a bolt are held together.
- a defined gap is set between the roll shell and the guide element, in particular between the cooling slot base and the end face of the guide element.
- the defined gap enables one desired leakage flow between the inflow area which is predetermined in its extent and outflow area, as a result of the axially symmetrical operating behavior of the Roll jacket is achieved.
- Particularly favorable conditions are achieved that the gap as a function of the depth-variable guide element length is dimensioned that the average coolant flow rate in the gap of Coolant flow rate in the other areas of the cooling slots equivalent.
- the gap between the guide element and the roller jacket thus becomes so dimensioned that achieved similar cooling conditions in the area of the guide elements as everywhere else on the roller jacket.
- For a gap length of 50 mm result from calculations depending on the pressure difference and mean Coolant flow rate (4 to 15 m / s) gap thicknesses of approx. 0.3 to 0.8 mm.
- a fluidically favorable deflection of the coolant from the radial Supply in the circular cooling slots and back is achieved in that the teeth of the guide element in the radial direction towards the cooling slot base are extended in an arc.
- the teeth of the guide element are radial Direction preferably tapered arc-shaped. Since such Cooling slot base is a very narrow face of the guide element, that is Risk of clogging of the gap between these two components is minimized or insignificant and the risk that by not axially symmetrical thermal Relative asymmetries of deformation arise, kept extremely small.
- the thermal conditions in the Roll jacket additionally evened out that individual guide elements or Groups of several next to each other in the direction of the longitudinal axis of the casting roll arranged guide elements with respect to the longitudinal axis of the casting roll by an angle are staggered.
- the result is a simply structured casting roller in that all guide elements in a line parallel to the longitudinal axis of the casting roll are aligned.
- the guide element is equipped with a Plug connection connected to the roller core.
- the guide element is preferably by a plug connection with a partition between the supply line and the Drainage for the coolant connected.
- the partition is part of the roll core.
- the plug connection is essentially from one to the other Casting roll longitudinal axis parallel groove formed.
- the guide element preferably consists of a material of the same or less Thermal conductivity like the roller jacket to avoid assembly problems and jamming in the Avoid cooling slot safely.
- a two-roll caster for the continuous casting of a steel strip in one Thickness range from 1 mm to 12 mm consists of two in opposite directions in the direction of the arrow rotating, driven casting rolls 1 with parallel to each other Casting roll longitudinal axes 2.
- the casting room 3, in the melt continuously is introduced, is from the two casting rolls 1 and on the end faces adjustable sidewalls 4 formed.
- the continuously generated is down Steel strip 5 pulled off.
- the roll neck 6 coolant in the direction of arrow 7 fed and after passing through and cooling the casting roll surface from the inside in Direction of arrow 8 discharged again.
- a two-roll caster of this type is for example also shown in IT-PS 1 255 817 in FIG. 1.
- Fig. 2 shows an example of the internal structure of a first embodiment of the Casting roll 1, which is formed by a roll core 9 and a roll shell 10.
- the roller core 9 consists of a steel drum 11, which is not with the here shown roll neck and various side walls and reinforcing ribs as Welded construction is made.
- the steel drum 11 contains passage openings, form the supply lines 12 and discharge lines 13 for the coolant, which by the Roll pin 6 is fed in and out.
- the details of the coolant circuit between roll neck 6 and the feed line 12 and the discharge line 13 are not shown, but can be analogous to that shown in IT-PS 1 255 817 Embodiment can be designed.
- the roll shell made, for example, of copper or a copper alloy 10 has circular, uninterrupted, circumferential cooling slots 14 on its inside to which the coolant is supplied in the direction of the arrow via the feed line 12 and after Flow through the cooling slot 14 in the direction of the arrow through the discharge line 13 again is derived.
- Several of the circular cooling slots 14 arranged side by side is one extending in the direction of the longitudinal axes 2 of the casting rolls Coolant distribution chamber 15 is assigned to which the supply line 12 is expanded. Is analog the derivative 13 in its transition region from the cooling slots 14 to one Coolant collection chamber 16 expanded. This results in a mechanically simple one Structure of the roll core 9.
- the cooling slots 14 can also be helical in the Roll jacket 10 to be incorporated.
- a guide element 17 for the defined deflection of the coolant and the separation of the coolant flows between supply line 12 and discharge line 13 intended.
- the guide element 17 has a plug connection 18 with the partition 19 connected between lead 12 and lead 13.
- the guide element 17 has a plurality of teeth 20, which protrude from a base 21 and their distance, width and depth on the Distance, the width and depth of the cooling slots 14 are matched.
- Guide element 17 can be constructed from plate-shaped individual elements 26, 27 which alternately form teeth and gaps or base parts and with one die connecting element penetrating plate-shaped individual elements, preferably a bolt 28 are held together.
- the teeth 20 are, as shown in FIG. 2, for improved coolant diversion Cooling slot base 22 extended in an arc shape.
- the base 21 is the plug connection 18 designed accordingly and sliding with the partition 19 on the end face connected.
- the guide element 17 is included in the cooling slots 14 glued to the roll shell 10.
- the adhesive connection is said to be of low strength exhibit.
- FIGS. 4 and 5 show a guide element 17 with a defined gap 23 between the Teeth 20 of the guide element 17 and the walls of the cooling slots 14 in Roller jacket 10.
- the teeth 20 at the front and on the side walls with spacers inserted in blind holes 24 equipped.
- the blind holes are indicated by their center lines 25.
- Cooling slot base 22 shown tapered teeth 20.
- Components correspond to this embodiment of the embodiment according to FIG. 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Glass Compositions (AREA)
- Paper (AREA)
- Ink Jet (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Vehicle Body Suspensions (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Braking Arrangements (AREA)
- Gear Transmission (AREA)
Description
Claims (15)
- Gießwalze zum kontinuierlichen Gießen eines Metallbandes, vorzugsweise eines Stahlbandes in einem Banddickenbereich von 1 mm bis 12 mm, bestehend aus einem Walzenkern (9) und einem auf dem Walzenkern (9) aufgezogenen Walzenmantel (10) aus wärmeleitfähigem Material, wobei zwischen dem Walzenkem (9) und dem Walzenmantel (10) umlaufende Kühlschlitze (14) angeordnet sind, die mit im wesentlichen radialen Zu- und Ableitungen (13) für das Kühlmittel und einem Mittel zur Umlenkung des Kühlmittels verbunden sind, dadurch gekennzeichnet, dass das Mittel zur Umlenkung des Kühlmittels von der im wesentlichen radialen Zuleitung (12) in die Kühlschlitze (14) und zur Umlenkung des Kühlmittels von den Kühlschlitzen (14) in die im wesentlichen radialen Ableitungen (13) von einem in die Kühlschlitze (14) einsetzbaren und mit dem Walzenkem (9) verbundenen Leitelement (17) gebildet ist.
- Gießwalze nach Anspruch 1, dadurch gekennzeichnet, daß jedem Kühlschlitz (14) ein Leitelement (17) zugeordnet ist.
- Gießwalze nach Anspruch 1, dadurch gekennzeichnet, daß mehreren benachbarten Kühlschlitzen (14) ein gemeinsames Leitelement (17) zugeordnet ist.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Leitelement (17) kammartig ausgebildet ist, wobei dessen einzelne Zähne (20) in ihrer Breite und Tiefe im wesentlichen mit der Breite und Tiefe der Kühlschlitze (17) übereinstimmen.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Leitelement (17) aus plattenförmigen Einzelelementen (26, 27) aufgebaut ist, die abwechselnd Zähne und Zwischenräume bilden und mit einem die plattenförmigen Einzelelemente durchsetzenden Verbindungselement, vorzugsweise einem Bolzen (28), zusammengehalten sind.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zwischen dem Walzenmantel (10) und dem Leitelement (17), insbesondere zwischen dem Kühlschlitzgrund (22) und der Stirnfläche des Leitelmentes (17), ein definierter Spalt (23) eingestellt ist.
- Gießwalze nach Anspruch 6, dadurch gekennzeichnet, daß der Spalt (23) in Abhängigkeit der tiefenveränderlichen Leitelementlänge so dimensioniert ist, daß die mittlere Kühlmittelströmungsgeschwindigkeit im Spalt der Kühlmittelströmungsgeschwindigkeit in den sonstigen Bereichen der Kühlschlitze (17) entspricht.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zähne (20) des Leitelementes (17) in radialer Richtung zum Kühlschlitzgrund (22) hin bogenförmig erweitert sind.
- Gießwalze nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zähne (20) des Leitelmentes (17) in radialer Richtung vorzugsweise bogenförmig verjüngt ausgebildet sind.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 9, dadurch gekennzeichnet, daß einzelne Leitelemente (17) oder Gruppen von mehreren nebeneinander in Richtung der Gießwalzenlängsachse (2) angeordneten Leitelementen (17) im Bezug auf die Gießwalzenlängsachse (2) um einen Winkel versetzt zueinander angeordnet sind.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 9, dadurch gekennzeichnet, daß sämtliche Leitelemente (17) in einer Linie parallel zur Gießwalzenlängsachse (2) ausgerichtet sind.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das Leitelement (17) durch eine Steckverbindung (18) mit dem Walzenkern (9) verbunden ist.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das Leitelement (17) durch eine Steckverbindung (18) mit einer Trennwand (19) zwischen der Zuleitung (12) und der Ableitung (13) für das Kühlmittel verbunden ist.
- Gießwalze nach einem der Ansprüche 12 oder 13, dadurch gekennzeichnet, daß die Steckverbindung (18) im wesentlichen von einer zur Gießwalzenlängsachse (2) parallel angeordneten Nut gebildet ist.
- Gießwalze nach einem der vorhergehenden Ansprüche 1 bis 14, dadurch gekennzeichnet, daß das Leitelement (17) aus einem Material gleicher oder geringerer Wärmeleitfähigkeit wie der Walzenmantel (10) besteht.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM970257 | 1997-05-02 | ||
IT97RM000257A IT1290603B1 (it) | 1997-05-02 | 1997-05-02 | Cilindro di colata |
PCT/EP1998/002533 WO1998050183A1 (de) | 1997-05-02 | 1998-04-29 | Giesswalze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0979154A1 EP0979154A1 (de) | 2000-02-16 |
EP0979154B1 true EP0979154B1 (de) | 2002-07-17 |
Family
ID=11405034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98924242A Expired - Lifetime EP0979154B1 (de) | 1997-05-02 | 1998-04-29 | Giesswalze |
Country Status (19)
Country | Link |
---|---|
US (1) | US6776216B1 (de) |
EP (1) | EP0979154B1 (de) |
JP (1) | JP4130482B2 (de) |
KR (1) | KR100541508B1 (de) |
CN (1) | CN1072057C (de) |
AT (1) | ATE220585T1 (de) |
AU (1) | AU727886B2 (de) |
BR (1) | BR9809346A (de) |
CA (1) | CA2288279C (de) |
CZ (1) | CZ289285B6 (de) |
DE (1) | DE59804811D1 (de) |
ES (1) | ES2182313T3 (de) |
ID (1) | ID22912A (de) |
IT (1) | IT1290603B1 (de) |
MY (1) | MY132889A (de) |
RU (1) | RU2198063C2 (de) |
UA (1) | UA46899C2 (de) |
WO (1) | WO1998050183A1 (de) |
ZA (1) | ZA983727B (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100335203C (zh) * | 2003-01-08 | 2007-09-05 | 阿尔科公司 | 连铸机辊 |
DE10316673A1 (de) * | 2003-04-10 | 2004-11-18 | Georg Springmann Industrie- Und Bergbautechnik Gmbh | Vorrichtung zum Ankuppeln einer Kühlmittelzuführung an eine Walze |
CN102990021B (zh) * | 2012-12-18 | 2016-01-13 | 江苏三环实业股份有限公司 | 对滚式铅带成型机 |
CN103464701B (zh) * | 2013-09-05 | 2015-10-28 | 青岛云路新能源科技有限公司 | 非晶结晶器 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3537506A (en) * | 1968-08-08 | 1970-11-03 | United States Steel Corp | Fixed internal guides for cooling water in rotary strip-casting drum |
JPS57165355U (de) * | 1981-04-13 | 1982-10-18 | ||
US4537239A (en) * | 1982-07-13 | 1985-08-27 | Allied Corporation | Two piece casting wheel |
FR2587247B1 (fr) | 1985-09-17 | 1988-08-12 | Siderurgie Fse Inst Rech | Cylindre pour coulee continue entre cylindres, a circulation de fluide de refroidissement |
CH674166A5 (de) * | 1986-12-22 | 1990-05-15 | Lauener Eng Ag | |
US4842040A (en) * | 1988-08-10 | 1989-06-27 | Battelle Development Corporation | Uniform cooling of cast strip |
FR2654372B1 (fr) * | 1989-11-16 | 1992-01-17 | Siderurgie Fse Inst Rech | Cylindre pour un dispositif de coulee continue sur un ou entre deux cylindres. |
US4993478A (en) * | 1990-03-16 | 1991-02-19 | Battelle Development Corporation | Uniformly-cooled casting wheel |
US5651410A (en) * | 1991-01-04 | 1997-07-29 | Davy Mckee (Sheffield) Limited | Cooling roll |
IT1255817B (it) | 1992-08-10 | 1995-11-16 | Rullo per macchina di colata continua a rulli controrotanti, in particolare per la produzione di nastri | |
JPH06182499A (ja) * | 1992-12-22 | 1994-07-05 | Mitsubishi Heavy Ind Ltd | 連続鋳造装置の冷却ドラム及びその製造方法 |
US5522448A (en) * | 1994-09-27 | 1996-06-04 | Aluminum Company Of America | Cooling insert for casting mold and associated method |
IT1276656B1 (it) | 1995-04-03 | 1997-11-03 | Innocenti Eng Spa | Rullo per lingottiera di colata continua a rulli controrotanti per spessori sottili |
GB2324488A (en) * | 1997-04-24 | 1998-10-28 | Kvaerner Tech & Res Ltd | A casting roll with an interference fit between its inner core and outer shell |
-
1997
- 1997-05-02 IT IT97RM000257A patent/IT1290603B1/it active IP Right Grant
-
1998
- 1998-04-29 AU AU76506/98A patent/AU727886B2/en not_active Ceased
- 1998-04-29 ID IDW991194A patent/ID22912A/id unknown
- 1998-04-29 DE DE59804811T patent/DE59804811D1/de not_active Expired - Lifetime
- 1998-04-29 JP JP54770198A patent/JP4130482B2/ja not_active Expired - Fee Related
- 1998-04-29 RU RU99125658/02A patent/RU2198063C2/ru not_active IP Right Cessation
- 1998-04-29 UA UA99105930A patent/UA46899C2/uk unknown
- 1998-04-29 EP EP98924242A patent/EP0979154B1/de not_active Expired - Lifetime
- 1998-04-29 ES ES98924242T patent/ES2182313T3/es not_active Expired - Lifetime
- 1998-04-29 CN CN98804778A patent/CN1072057C/zh not_active Expired - Lifetime
- 1998-04-29 BR BR9809346-0A patent/BR9809346A/pt not_active IP Right Cessation
- 1998-04-29 US US09/423,067 patent/US6776216B1/en not_active Expired - Lifetime
- 1998-04-29 AT AT98924242T patent/ATE220585T1/de active
- 1998-04-29 KR KR1019997010064A patent/KR100541508B1/ko not_active IP Right Cessation
- 1998-04-29 WO PCT/EP1998/002533 patent/WO1998050183A1/de active IP Right Grant
- 1998-04-29 CZ CZ19993850A patent/CZ289285B6/cs not_active IP Right Cessation
- 1998-04-29 CA CA002288279A patent/CA2288279C/en not_active Expired - Fee Related
- 1998-05-02 MY MYPI98001970A patent/MY132889A/en unknown
- 1998-05-04 ZA ZA983727A patent/ZA983727B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AU727886B2 (en) | 2001-01-04 |
RU2198063C2 (ru) | 2003-02-10 |
ITRM970257A0 (it) | 1997-05-02 |
CZ289285B6 (cs) | 2001-12-12 |
JP4130482B2 (ja) | 2008-08-06 |
EP0979154A1 (de) | 2000-02-16 |
ES2182313T3 (es) | 2003-03-01 |
CN1072057C (zh) | 2001-10-03 |
CZ9903850A3 (cs) | 2001-08-15 |
ITRM970257A1 (it) | 1998-11-02 |
CN1255077A (zh) | 2000-05-31 |
ID22912A (id) | 1999-12-16 |
MY132889A (en) | 2007-10-31 |
US6776216B1 (en) | 2004-08-17 |
DE59804811D1 (de) | 2002-08-22 |
IT1290603B1 (it) | 1998-12-10 |
BR9809346A (pt) | 2000-07-04 |
CA2288279A1 (en) | 1998-11-12 |
WO1998050183A1 (de) | 1998-11-12 |
KR100541508B1 (ko) | 2006-01-10 |
CA2288279C (en) | 2007-03-13 |
ZA983727B (en) | 1999-06-23 |
JP2001526590A (ja) | 2001-12-18 |
AU7650698A (en) | 1998-11-27 |
KR20010020434A (ko) | 2001-03-15 |
ATE220585T1 (de) | 2002-08-15 |
UA46899C2 (uk) | 2002-06-17 |
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