EP0979154A1 - Giesswalze - Google Patents
GiesswalzeInfo
- Publication number
- EP0979154A1 EP0979154A1 EP98924242A EP98924242A EP0979154A1 EP 0979154 A1 EP0979154 A1 EP 0979154A1 EP 98924242 A EP98924242 A EP 98924242A EP 98924242 A EP98924242 A EP 98924242A EP 0979154 A1 EP0979154 A1 EP 0979154A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- guide element
- roll
- coolant
- cooling
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 52
- 239000002826 coolant Substances 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000009749 continuous casting Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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 roll core and a roll shell made of thermally conductive material mounted on the roll core, wherein cooling slots are arranged between the roll core and the roll shell , which are connected to supply and discharge lines for the coolant.
- a casting roll of this type as used for the two-roll casting process, is known from IT-PS 1 255817. It consists of a roller core and a roller shell shrunk onto the roller core, into which cooling slots that are circular on the inside are machined, but do not run all the way around. Coolant is fed centrally through the casting roll neck and is fed to the circular cooling slots via radially arranged collecting channels and is removed again in an analogous manner.
- the roll shell has a change in thickness which is caused by the cooling slots which do not run all the way around, in order to ensure the separation of incoming and outgoing coolant and which in operation leads to different radial and axial deformations of the Roll jacket leads here, which are disadvantageous both for the production process itself and for the product produced.
- the deformations lead to deviations in the thickness of the product produced, on the other hand, it has been found that the alternating heating and cooling of the roll shell following the roll rotation leads to a slow rotation of the roll shell relative to the roll core, which is also unsatisfactory due to the installation of a positive locking device could be remedied. This twisting can to a large extent lead to a short-circuit flow between the inlet and outlet, which must absolutely be avoided.
- a solution is already known from DE-OS 196 12202 which no longer has these disadvantages.
- a generic casting roller is proposed, in which a roller shell with cooling slots that are circularly and continuously incorporated into the roller shell is shrunk onto a casting drum. Starting from the collecting channels, the coolant is distributed on both sides into the cooling slots and exits into collecting channels on the opposite side of the casting roll after traveling through a path of 180 °.
- a serious disadvantage of this solution is the doubling of the amount of coolant required for cooling while keeping the flow rate necessary for the desired cooling effect constant, which results from the branching of the coolant flows.
- the additional need for coolant can be counteracted by using it twice, as is also addressed in DE-OS 196 12202 in a special embodiment.
- the invention aims at avoiding these disadvantages and difficulties and has as its object to provide a casting roll of the type described in the introduction which, with minimized coolant consumption and clearly defined flow behavior, enables uniform heat dissipation from the roll shell and permits the thermally induced migration efforts of the roll shell relative to the roll core
- Another object of the invention is to propose a casting roll, which is simple in terms of construction and production technology, with a roll jacket of rotationally symmetrical design, the thermal expansion of which is possible without mechanical obstructions
- a guide element is assigned to each cooling slot.
- a preferred embodiment which is characterized by easy assembly, is characterized in that a plurality of adjacent cooling guards is assigned a common guide element
- the guide element is comb-like, the width and depth of the individual teeth of which essentially correspond to the width and depth of the cooling slots.
- a simple design in terms of production technology results from the fact that the guide element is made up of plate-shaped individual elements which alternately form teeth and spaces and are held together with a connecting element, preferably a bolt, passing through the plate-shaped individual elements
- 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 a desired leakage flow between the inflow region and the outflow region, the extent of which is desired, thereby ensuring an axially symmetrical operating behavior of the Roll jacket is achieved
- Particularly favorable conditions are achieved that the gap is dimensioned as a function of the depth-variable guide element length so that the average coolant flow rate in the gap corresponds to the coolant flow rate in the other areas of the cooling slots.
- the gap between the guide element and the roller jacket is accordingly dimensioned such that similar cooling conditions are achieved in the area of the guide elements as anywhere else on the roller jacket. For a gap length of 50 mm, calculations result in gap thicknesses of approx. 0.3 to 0.8 mm depending on the pressure difference and average coolant flow rate (4 to 15 m / s).
- a fluidically favorable deflection of the coolant from the radial feed line into the circular cooling slots and back is achieved in that the teeth of the guide element are widened in an arc in the radial direction towards the cooling slot base.
- the teeth of the guide element are preferably tapered in an arc shape in the radial direction. Since such a very narrow end face of the guide element lies opposite the cooling slot base, the risk of a blockage of the gap between these two components is minimized or insignificant and the risk that strong deformation asymmetries arise due to non-axially symmetrical thermal conditions is kept extremely small.
- the thermal conditions in the roll shell are further equalized in that individual guide elements or groups of several guide elements arranged next to one another in the direction of the longitudinal axis of the casting roll are arranged at an angle to one another with respect to the longitudinal axis of the casting roll.
- a simply structured casting roller results from the fact that all guide elements are aligned in a line parallel to the longitudinal axis of the casting roller.
- the guide element is connected to the roller core by a plug-in connection for easy assembly and positioning.
- the guide element is preferably connected by a plug connection to a partition between the supply line and the discharge line for the coolant.
- the partition is part of the roll core.
- the plug connection is essentially formed by a groove arranged parallel to the longitudinal axis of the casting roll.
- the guide element preferably consists of a material of the same or lower thermal conductivity as the roller jacket in order to reliably avoid assembly problems and jamming in the cooling slot.
- Fig. 1 is a schematic representation of a two-roll casting machine with the casting roll according to the invention.
- FIG. 2 shows a detail section of a casting roll with a first embodiment of the guide element according to the invention
- Fig. 4 shows a detail section of a casting roll analogous to Fig. 1 with a second
- Fig. 6 shows a detail section of a casting roll analogous to FIG. 1 with a third
- FIG. 7 is an oblique view of a guide element constructed from individual elements.
- a two-roll casting plant for the continuous casting of a steel strip in a thickness range from 1 mm to 12 mm consists of two driven casting rolls 1 rotating in opposite directions in the direction of the arrow, with parallel casting roll longitudinal axes 2.
- the casting chamber 3, into which the melt is continuously introduced, is of the two casting rolls 1 and the side walls 4 which can be placed on the end faces thereof.
- the continuously produced steel strip 5 is pulled off. Coolant is supplied in the direction of the arrow 7 through the roll neck 6 and, after passing through and cooling the casting roll surface, is removed again in the direction of the arrow 8.
- a two-roll caster of this type is also shown, for example, in IT-PS 1 255 817 in FIG. 1.
- the roller core 9 consists of a steel drum 11 which is produced as a welded construction with the roll neck (not shown here) and various side walls and reinforcing ribs.
- the steel drum 11 contains passage openings which form supply lines 12 and discharge lines 13 for the coolant which is caused by the Roll pin 6 is fed in and out.
- the details of the coolant circuit between the roll neck 6 and the feed line 12 and the discharge line 13 are not shown, but can be designed analogously to the embodiment shown in IT-PS 1 255 817.
- the roller jacket 10 which is made, for example, of copper or a copper alloy, has on its inside circular, uninterrupted, circumferential cooling slots 14, to which the coolant is fed in the direction of the arrow via the feed line 12 and, after flowing through the cooling slot 14 in the arrow direction, is discharged again through the discharge line 13.
- a plurality of the circular cooling slots 14 arranged next to one another is assigned a coolant distribution chamber 15 which extends in the direction of the longitudinal axes 2 of the casting rolls and to which the feed line 12 is expanded.
- the derivation 13 is expanded in its transition region from the cooling slots 14 to a coolant collecting chamber 16. This results in a mechanically simple construction of the roller core 9.
- the cooling slots 14 can also be machined into the roller shell 10 in a helical shape.
- a guide element 17 is provided for the defined deflection of the coolant and the separation of the coolant flows between the supply line 12 and the discharge line 13.
- the guide element 17 is connected by a plug connection 18 to the partition 19 between the feed line 12 and the drain line 13.
- the guide element 17 has a plurality of teeth 20 which protrude from a base 21 and whose distance, width and depth are matched to the distance, width and depth of the cooling slots 14.
- the guide element 17 can be constructed from plate-shaped individual elements 26, 27, which alternately form teeth and spaces or base parts and are held together with a connecting element, preferably a bolt 28, which penetrates the plate-shaped individual elements.
- the teeth 20, as shown in FIG. 2, are widened in an arc shape for improved coolant diversion to the cooling base 22.
- the base 21 is the plug connection 18 designed accordingly and slidably connected to the partition 19 at the end.
- the guide element 17 is glued to the roller jacket 10 in the cooling slots 14.
- the adhesive connection should only have low strength.
- 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 the roller jacket 10.
- the teeth 20 are on the end face and on their side walls with inserted in blind holes Spacers 24 equipped.
- the blind holes are indicated by their center lines 25.
- FIG. 6 shows an embodiment of the guide element 17 with teeth 20 tapering in the radial direction to the cooling slot base 22. In all other components, this embodiment corresponds to the embodiment according to FIG. 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Glass Compositions (AREA)
- Ink Jet (AREA)
- Paper (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Braking Arrangements (AREA)
- Gear Transmission (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Vehicle Body Suspensions (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT97RM000257A IT1290603B1 (it) | 1997-05-02 | 1997-05-02 | Cilindro di colata |
| ITRM970257 | 1997-05-02 | ||
| PCT/EP1998/002533 WO1998050183A1 (de) | 1997-05-02 | 1998-04-29 | Giesswalze |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0979154A1 true EP0979154A1 (de) | 2000-02-16 |
| EP0979154B1 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 (5)
| 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 |
| UA76605C2 (en) * | 2004-10-15 | 2006-08-15 | Viktor Oleksandrov Dzenzerskyi | Method for continuously producing current leads of lead-acid accumulators |
| 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 (18)
| 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 |
| DE3440235C2 (de) * | 1984-11-03 | 1986-11-06 | Mannesmann AG, 4000 Düsseldorf | Verfahren und Vorrichtung zum Bandstranggießen von Metallen, insbesondere von Stahl |
| 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 | |
| SU1706114A1 (ru) * | 1988-01-06 | 1996-02-10 | Уральский политехнический институт им.С.М.Кирова | Машина для непрерывного получения металлической полосы |
| DE3802202A1 (de) * | 1988-01-26 | 1989-08-03 | Voest Alpine Ag | Verfahren zum stranggiessen eines duennen bandes oder einer duennen bramme sowie vorrichtung zur durchfuehrung des verfahrens |
| ATE81042T1 (de) * | 1988-07-14 | 1992-10-15 | Thyssen Stahl Ag | Verfahren zum herstellen eines stahlbandes mit einer dicke von weniger als 10 mm. |
| 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 KR KR1019997010064A patent/KR100541508B1/ko not_active Expired - Lifetime
- 1998-04-29 AU AU76506/98A patent/AU727886B2/en not_active Ceased
- 1998-04-29 EP EP98924242A patent/EP0979154B1/de not_active Expired - Lifetime
- 1998-04-29 CA CA002288279A patent/CA2288279C/en not_active Expired - Fee Related
- 1998-04-29 AT AT98924242T patent/ATE220585T1/de active
- 1998-04-29 DE DE59804811T patent/DE59804811D1/de not_active Expired - Lifetime
- 1998-04-29 CN CN98804778A patent/CN1072057C/zh not_active Expired - Lifetime
- 1998-04-29 CZ CZ19993850A patent/CZ289285B6/cs not_active IP Right Cessation
- 1998-04-29 UA UA99105930A patent/UA46899C2/uk unknown
- 1998-04-29 ID IDW991194A patent/ID22912A/id unknown
- 1998-04-29 WO PCT/EP1998/002533 patent/WO1998050183A1/de not_active Ceased
- 1998-04-29 ES ES98924242T patent/ES2182313T3/es not_active Expired - Lifetime
- 1998-04-29 US US09/423,067 patent/US6776216B1/en not_active Expired - Lifetime
- 1998-04-29 JP JP54770198A patent/JP4130482B2/ja not_active Expired - Fee Related
- 1998-04-29 BR BR9809346-0A patent/BR9809346A/pt not_active IP Right Cessation
- 1998-04-29 RU RU99125658/02A patent/RU2198063C2/ru not_active IP Right Cessation
- 1998-05-02 MY MYPI98001970A patent/MY132889A/en unknown
- 1998-05-04 ZA ZA983727A patent/ZA983727B/xx unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9850183A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ID22912A (id) | 1999-12-16 |
| DE59804811D1 (de) | 2002-08-22 |
| UA46899C2 (uk) | 2002-06-17 |
| ITRM970257A1 (it) | 1998-11-02 |
| US6776216B1 (en) | 2004-08-17 |
| AU727886B2 (en) | 2001-01-04 |
| KR100541508B1 (ko) | 2006-01-10 |
| AU7650698A (en) | 1998-11-27 |
| BR9809346A (pt) | 2000-07-04 |
| ES2182313T3 (es) | 2003-03-01 |
| CZ9903850A3 (cs) | 2001-08-15 |
| CN1072057C (zh) | 2001-10-03 |
| ZA983727B (en) | 1999-06-23 |
| MY132889A (en) | 2007-10-31 |
| CA2288279C (en) | 2007-03-13 |
| ITRM970257A0 (it) | 1997-05-02 |
| CA2288279A1 (en) | 1998-11-12 |
| EP0979154B1 (de) | 2002-07-17 |
| RU2198063C2 (ru) | 2003-02-10 |
| WO1998050183A1 (de) | 1998-11-12 |
| JP4130482B2 (ja) | 2008-08-06 |
| CZ289285B6 (cs) | 2001-12-12 |
| CN1255077A (zh) | 2000-05-31 |
| JP2001526590A (ja) | 2001-12-18 |
| KR20010020434A (ko) | 2001-03-15 |
| IT1290603B1 (it) | 1998-12-10 |
| ATE220585T1 (de) | 2002-08-15 |
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