EP0313516B1 - Vorrichtung und Verfahren zum Kühlen von Walzen - Google Patents
Vorrichtung und Verfahren zum Kühlen von Walzen Download PDFInfo
- Publication number
- EP0313516B1 EP0313516B1 EP88810680A EP88810680A EP0313516B1 EP 0313516 B1 EP0313516 B1 EP 0313516B1 EP 88810680 A EP88810680 A EP 88810680A EP 88810680 A EP88810680 A EP 88810680A EP 0313516 B1 EP0313516 B1 EP 0313516B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- cooling medium
- rolls
- hood
- roll surface
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
- B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/08—Lubricating, cooling or heating rolls internally
- B21B2027/083—Lubricating, cooling or heating rolls internally cooling internally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
- B21B27/03—Sleeved rolls
Definitions
- the invention relates to a device and a method for cooling rolls according to the preamble of patent claims 1 and 7.
- the casting mold is essentially formed by the casting gap between the rolls and by side end walls.
- the action time of the rollers is relatively short, a large amount of heat has to be dissipated over a short distance, in particular the heat of solidification, friction and / or deformation.
- the rolls are cooled using special devices or processes, namely by injection from the outside or by internal cooling.
- the specialist in strip casting systems prefers the internal cooling of the rolls, in which cooling channels are generally arranged between a roll core and a roll jacket, through which a cooling medium flows.
- This cooling medium usually water
- This cooling medium extracts the heat absorbed from the roll shell.
- Great attention must be paid to the arrangement of the cooling ducts, since they are not only responsible for the amount of heat that is extracted from the material to be cooled, but can also determine the shape or dimensions of the roller itself during operation.
- Will a roller along its length or cooled to different extents stresses arise due to different thermal expansion. Among other things, this leads to a different deflection of the roll, which has a negative effect on the quality of the rolling stock.
- the uniform or pre-programmed cooling of the casting material lengthways and crossways must be given the greatest attention.
- An advantage of all known embodiments of the internal cooling is that the contact of water with the rolling stock is ruled out beforehand, which can be particularly important in the case of roll casting. For example, when aluminum is cast, contact with water leads to a violent reaction which leaves marks on the surface of the rolling stock or can even lead to accidents.
- a roll with a cooling or heating device for the roll surface is known.
- This apparatus has one or more chambers which are open against the roll surface.
- the chambers have a substantially square cross section.
- a fluid is introduced through the inlet channels.
- Turbulence forms in the chambers during the actuation of the roller in question. This turbulence causes the fluid to remain in the chambers for a longer period of time and thus to achieve a greater cooling or heating effect. Although this turbulence increases efficiency, this system is sufficient, among other things. not for efficient casting rolls. New materials and high production rates also require increased heat dissipation with low material stress.
- JP-A 57-177863 describes a device for cooling the outside of a roll of a roll caster for vertically cast known thin bands.
- Spray nozzles for water and air supply nozzles are arranged in a hood arranged along the circumferential surface of the roller after the roll gap.
- Scraper devices and compressed air prevent water residues from escaping from the hood and thus prevent water from coming into contact with the molten metal.
- a suction device for the cooling medium is not provided.
- separating plates arranged adjacent to the side walls of the hood are pressed onto the roller by means of spring force to prevent leakage.
- the inventors have set themselves the task of creating a device and a method of the type described in JP-A 57-177863, which can apply the advantages of effective external cooling with higher efficiency, but it should be worked with simple means and - how for internal cooling - there is no impairment of the cast or rolled strip.
- the terminal means for removing the cooling medium ensure that no liquid cooling medium reaches the cast or rolled strip. This is of fundamental importance, in particular when strip casting, with or without plating strips.
- the end of the hood facing away from the roll gap is preferably designed as a drying chamber, with e.g. warm or cold drying air can be used.
- the hoods can be followed by a cleaning device, in particular a brush or a bar, which acts on the roller surface.
- a spray device for applying a separating and / or lubricant preferably a size or a rolling oil
- the size can e.g. a graphite suspension.
- the roll geometry and the strip profile transverse to the rolling direction can be influenced by the zone cooling by dividing the hoods by radial partitions.
- the chambers formed in this way can contain different amounts of cooling medium, cooling media with different heat capacity and / or cooling media are supplied at different temperatures.
- the method according to the invention for operating a device is characterized in that the roll surface is cooled with increasing intensity in the direction pointing away from the roll gap.
- the externally cooled rollers can additionally be internally cooled, with the process being carried out in a closed circuit in a known manner.
- the release agent can be added to the coolant and applied together with it.
- the plant for casting aluminum shown in FIG. 1 comprises two rollers 10, 12 which rotate in the direction of the arrows 14, 16.
- the liquid metal 18 is fed into a casting trough 20 and flows into the roll gap 26 via a casting nozzle 24 carried by a nozzle holder 22.
- each roller 10, 12 is partially covered with a device for cooling the rollers extending from the area of the roller gap 26.
- This device essentially consists of a hood 30 with a combination of spray nozzles 32 for the cooling medium 56 and suction elements 34 and a drying chamber 36, all of which extend at least over the entire length of the rollers.
- the suction elements 34 are designed as strips which are U-shaped in cross section and open towards the roller surface 28 and which are closed laterally.
- the suction connection 38 opens into a peripheral jacket space 42, which is separated by an intermediate wall 40, in which the suction negative pressure is generated and in which the cooling medium, in particular water, which is drawn off collects and through drain pipe, not shown, is discharged.
- the supply lines 44 to the spray nozzles 32 pass through the jacket space 42.
- the supply of cooling medium to these supply lines takes place individually through one or common lines (not shown).
- the device for cooling rolls shown in FIG. 1 with alternating spray nozzles and suction elements draws a lot of energy from the roll surface 28.
- the effective sealing also ensures that no cooling medium, in particular water, comes into contact with the metal strip 52, which in the present case is made of aluminum.
- the cooling medium for example water, a rolling oil, an emulsion or a suspension
- the cooling medium can be fed through all nozzles 32 in the same composition, the same amount and at the same temperature.
- the parameters can also be freely combined with one another in such a way that the intensity of the cooling increases in the direction of the arrows 14, 16.
- the cleaning brush 54 does not remove or only partially removes the release agent applied with the cooling medium 56; rather, it is distributed regularly.
- the device for cooling rolls shown in FIG. 3 comprises a hood 30 with negative pressure and a jacket space 42 separated by an intermediate wall 40, in which the suction nozzle 38 of the suction elements 34 open.
- a mixture of water and air is fed as cooling medium 56 into the two lower feed lines 44, and only water into the two upper feed lines 44.
- the roller surface 28 thus becomes more distant from the nip Towards first gently, then cooled more abruptly.
- the water supplied by the upper spray nozzles 32 is removed by the suction elements 34, the water in the lowermost spray nozzle 32 by a scraper 58 from the roller surface 28 and fed into the jacket space 42, from where it flows through an outlet 60.
- Compressed air is supplied through terminal compressed air pipes 65 with nozzles 63 and the roller surface 28 is completely dried.
- the roller 10, 12 shown in Fig. 4 for strip casting of metals is formed in two parts. It consists of a roller core 66 and a roller jacket 68.
- the cooling medium is supplied or removed via the roller neck 70, through bores 72. In a closed circuit, the cooling medium is brought radially into the surface area, where it is guided into circumferential cooling grooves 74 in the roller core 66, which are delimited by the roller jacket 68.
- the cast tape is labeled 76.
- cooling grooves 78 run in the axial direction according to FIG. 5 and work in the counterflow principle.
- the cooling medium is brought into the roll neck 70 in a pipe 80 and flows off in an annular space 82 delimited by this pipe 80 and a coaxial bore in the roll neck 70.
- FIGS. 4 and 5 are known per se; they document, for example, usable exemplary embodiments of internally cooled rollers with the external cooling according to the invention.
- the hoods 30 shown in FIG. 6 are designed as zone coolers, they subdivide the hood in the axial direction into the chambers 1-16.
- the cooling medium can be fed separately to each of the 16 chambers. This allows the temperature profile to be influenced in the axial direction. Because a temperature profile the roll diameter changed accordingly, the strip profile can be influenced transversely to the rolling or casting direction with the zone cooling shown. This type of strip influencing is known per se in rolling mills, but it corresponds to external cooling without sealing.
- the effect of the cooling medium is varied by regulating the amount, the temperature and / or at most the heat capacity of the coolant. 6 also shows that the cleaning brush 54 can also be arranged in front of the drying chamber 36.
- the device according to the invention and the method for cooling rolls are primarily used for roll casting, for dissipating the heat of solidification, and for rolling metals, for dissipating the heat of deformation and friction.
- the device and the method can also be used in similar systems for processing non-metallic materials, e.g. Plastics, paper, rubber, etc. are used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Rolls And Other Rotary Bodies (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88810680T ATE74807T1 (de) | 1987-10-23 | 1988-10-03 | Vorrichtung und verfahren zum kuehlen von walzen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4167/87A CH675974A5 (ko) | 1987-10-23 | 1987-10-23 | |
CH4167/87 | 1987-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0313516A1 EP0313516A1 (de) | 1989-04-26 |
EP0313516B1 true EP0313516B1 (de) | 1992-04-15 |
Family
ID=4271056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88810680A Expired - Lifetime EP0313516B1 (de) | 1987-10-23 | 1988-10-03 | Vorrichtung und Verfahren zum Kühlen von Walzen |
Country Status (6)
Country | Link |
---|---|
US (1) | US4934444A (ko) |
EP (1) | EP0313516B1 (ko) |
AT (1) | ATE74807T1 (ko) |
BR (1) | BR8801801A (ko) |
CH (1) | CH675974A5 (ko) |
DE (1) | DE3870145D1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101912881A (zh) * | 2010-07-27 | 2010-12-15 | 大连华锐股份有限公司 | 轧机轧辊盒式分段冷却装置 |
DE102012101474A1 (de) * | 2012-02-23 | 2013-08-29 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung von Metallbauteilen sowie Vorrichtung zur Durchführung des Verfahrens |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5046347A (en) * | 1989-10-10 | 1991-09-10 | Alcan International Limited | Coolant containment apparatus for rolling mills |
KR920019450A (ko) * | 1991-04-10 | 1992-11-19 | 라우에너 엔지니어링 악티엔게젤샤프트 | 롤 캐스팅 방법 |
US6354364B1 (en) | 1994-03-30 | 2002-03-12 | Nichols Aluminum-Golden, Inc. | Apparatus for cooling and coating a mold in a continuous caster |
US6125915A (en) * | 1994-03-30 | 2000-10-03 | Golden Aluminum Company | Method of and apparatus for cleaning a continuous caster |
US5697423A (en) * | 1994-03-30 | 1997-12-16 | Lauener Engineering, Ltd. | Apparatus for continuously casting |
DE20006508U1 (de) * | 2000-04-08 | 2000-08-31 | Achenbach Buschhütten GmbH, 57223 Kreuztal | Walzenkühl- und/oder Schmiervorrichtung für Kaltbandwalzwerke, insbesondere Feinband- und Folienwalzwerke |
IT1315084B1 (it) * | 2000-04-20 | 2003-02-03 | Danieli Off Mecc | Dispositivo di raffreddamento per anelli di laminazione e relativoprocedimento. |
US6892793B2 (en) * | 2003-01-08 | 2005-05-17 | Alcoa Inc. | Caster roll |
CN100335203C (zh) * | 2003-01-08 | 2007-09-05 | 阿尔科公司 | 连铸机辊 |
ES2292330B1 (es) * | 2003-12-10 | 2008-12-01 | Alcoa Inc. | Rodillo de colada. |
DE102004048619A1 (de) † | 2004-10-06 | 2006-04-13 | Sms Demag Ag | Verfahren und Vorrichtung zum Reinigen von Walzen |
EP2014379A1 (en) * | 2007-06-04 | 2009-01-14 | ArcelorMittal France | Rolling mill with cooling device and rolling process |
JP5428173B2 (ja) * | 2008-03-21 | 2014-02-26 | 株式会社Ihi | 圧延機及び圧延方法 |
DE102009053073A1 (de) * | 2009-03-03 | 2010-09-09 | Sms Siemag Aktiengesellschaft | Verfahren und Kühlvorrichtung zum Kühlen der Walzen eines Walzgerüstes |
CN102310175B (zh) * | 2010-06-30 | 2013-06-19 | 宝山钢铁股份有限公司 | 开有环形冷却槽的连铸机驱动辊 |
EP2489446A1 (en) * | 2011-02-17 | 2012-08-22 | Linde Aktiengesellschaft | Nozzle header |
EP2581150A1 (de) | 2011-10-12 | 2013-04-17 | Siemens Aktiengesellschaft | Gießwalzvorrichtung mit kryogener Kühlung der Gießwalzen |
GB2495512B (en) * | 2011-10-12 | 2013-12-11 | Siemens Plc | Rolling apparatus |
DE102014004487A1 (de) | 2014-03-28 | 2015-10-15 | Thyssenkrupp Ag | Vorrichtung zur berührungslosen Walzenreinigung und Verfahren hierfür |
DE102014213401A1 (de) * | 2014-03-28 | 2015-10-01 | Sms Group Gmbh | Vorrichtung zum Aufbringen und Absaugen von Betriebsstoffen im Einlauf von Kaltwalzanlagen |
JP6194874B2 (ja) * | 2014-12-08 | 2017-09-13 | スターライト工業株式会社 | 製鋼用メンテナンスワイパー |
GB2537162B (en) * | 2015-04-10 | 2017-04-19 | Primetals Technologies Austria GmbH | Work roll cooling apparatus and method |
BE1025125B1 (fr) * | 2017-09-04 | 2018-10-31 | Centre de Recherches Métallurgiques asbl-Centrum voor Research in de Metallurgie vzw | Essuyeur sans contact et installation industrielle comportant un tel essuyeur |
CN108421828A (zh) * | 2018-05-16 | 2018-08-21 | 嘉兴市乍浦杭湾重型机械有限公司 | 一种轧棍冷却装置锻件 |
CN111050936B (zh) | 2018-06-13 | 2022-08-30 | 诺维尔里斯公司 | 在辊加工中用于容纳粘性材料的***和方法 |
EP3784420A1 (en) | 2018-06-13 | 2021-03-03 | Novelis, Inc. | Systems and methods for removing viscous materials in metal article processing |
BR112020001891A2 (pt) * | 2018-06-13 | 2020-08-04 | Novelis Inc. | sistemas e métodos para refrigerar um rolo no processamento de metais |
DE102018212168A1 (de) | 2018-07-23 | 2020-01-23 | Sms Group Gmbh | Walzgerüst und Verfahren zum Kühlen der oberen Arbeitswalze eines Walzlgerüstes |
CN110026436A (zh) * | 2019-05-20 | 2019-07-19 | 安徽协同创新设计研究院有限公司 | 一种带材轧机轧辊碎屑处理方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US21261A (en) * | 1858-08-24 | Washing-machine | ||
US49053A (en) * | 1865-07-25 | Improvement in the manufacture of iron and steel | ||
DD55925A (ko) * | ||||
GB429005A (en) * | 1934-01-11 | 1935-05-22 | Finspongs Metallverks Aktiebol | Method of and means for manufacturing sheet metal, strips, tubes, section bars and the like directly from a molten material |
US2075394A (en) * | 1934-12-21 | 1937-03-30 | Clarence W Hazelett | Method of surfacing metallic rolls for rolling metals and apparatus therefor |
GB645305A (en) * | 1947-07-07 | 1950-10-25 | Robertshaw Fulton Controls Co | Continuous casting of metal |
US3670400A (en) * | 1969-05-09 | 1972-06-20 | Nat Res Dev | Process and apparatus for fabricating a hot worked metal layer from atomized metal particles |
CH536151A (de) * | 1971-10-04 | 1973-04-30 | Vni I Pk I Metallurgischeskogo | Walzenkokille zum Erzeugen von Blechstreifen aus geschmolzenem Metall |
US3757847A (en) * | 1971-10-07 | 1973-09-11 | P Sofinsky | Roll mould with cooling system |
GB1511247A (en) * | 1974-06-11 | 1978-05-17 | Alcan Res & Dev | Method and apparatus for cooling the rolls of rolling mills |
IT1135049B (it) * | 1980-01-25 | 1986-08-20 | Escher Wyss Sa | Cilindro con una superficie cilindrica da riscaldare o raffreddare |
DE3005526A1 (de) * | 1980-02-12 | 1981-10-01 | Escher Wyss AG, Zürich | Walze mit einer zu heizenden oder zu kuehlenden walzenoberflaeche |
JPS57177863A (en) * | 1981-04-28 | 1982-11-01 | Kawasaki Steel Corp | Cooler for outside circumferential surface of roll for production of quickly cooled thin metallic strip |
JPS58176009A (ja) * | 1982-04-07 | 1983-10-15 | Kawasaki Steel Corp | ロ−ル冷却装置 |
GB2156255A (en) * | 1984-03-23 | 1985-10-09 | Davy Mckee | Rolling mill |
JPS60231511A (ja) * | 1984-04-27 | 1985-11-18 | Kawasaki Steel Corp | 圧延ロ−ルの冷却方法 |
FR2568495B1 (fr) * | 1984-08-02 | 1986-10-24 | Cegedur | Dispositif de brossage et le lubrification en continu de cylindres de laminoirs pour produits plats lamines. |
US4614220A (en) * | 1984-11-16 | 1986-09-30 | The United States Of America As Represented By The Secretary Of The Air Force | Method for continuously casting thin sheet |
-
1987
- 1987-10-23 CH CH4167/87A patent/CH675974A5/de not_active IP Right Cessation
-
1988
- 1988-04-14 BR BR8801801A patent/BR8801801A/pt not_active IP Right Cessation
- 1988-10-03 EP EP88810680A patent/EP0313516B1/de not_active Expired - Lifetime
- 1988-10-03 AT AT88810680T patent/ATE74807T1/de not_active IP Right Cessation
- 1988-10-03 DE DE8888810680T patent/DE3870145D1/de not_active Expired - Fee Related
- 1988-11-04 US US07/267,012 patent/US4934444A/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101912881A (zh) * | 2010-07-27 | 2010-12-15 | 大连华锐股份有限公司 | 轧机轧辊盒式分段冷却装置 |
DE102012101474A1 (de) * | 2012-02-23 | 2013-08-29 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung von Metallbauteilen sowie Vorrichtung zur Durchführung des Verfahrens |
Also Published As
Publication number | Publication date |
---|---|
ATE74807T1 (de) | 1992-05-15 |
US4934444A (en) | 1990-06-19 |
EP0313516A1 (de) | 1989-04-26 |
DE3870145D1 (de) | 1992-05-21 |
BR8801801A (pt) | 1989-05-23 |
CH675974A5 (ko) | 1990-11-30 |
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