EP1057557A1 - Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall - Google Patents
Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall Download PDFInfo
- Publication number
- EP1057557A1 EP1057557A1 EP99810488A EP99810488A EP1057557A1 EP 1057557 A1 EP1057557 A1 EP 1057557A1 EP 99810488 A EP99810488 A EP 99810488A EP 99810488 A EP99810488 A EP 99810488A EP 1057557 A1 EP1057557 A1 EP 1057557A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- metal level
- cup
- mold
- metal
- 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
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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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0602—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a casting wheel and belt, e.g. Properzi-process
-
- 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
- B22D11/064—Accessories therefor for supplying molten metal
Definitions
- the invention relates to a method for the continuous casting of metal a strand by means of a casting machine with a closed one Cross-section with a mold forming an inlet and an outlet opening with constantly moving, cooled mold walls, with which method liquid metal is fed into and out of a pouring cup via a pouring spout the pouring cup and through a passage opening with training one depending on the metallostatic pressure in the mold pouring free meniscus into the opening of the mold and the strand solidifying in the casting mold emerges from the outlet opening, wherein the supply of liquid metal to the casting mold by a first setting of the metal level in the pouring cup and a second shot of the Metal level is regulated above the passage opening.
- Known casting machines with a mold with a closed cross-section and with constantly migrating mold walls are, for example, the under the name Rotary known casting machines with a casting wheel and a circumferential steel band as mold walls for the production of metal bands made of aluminium.
- the casting tape emerging from the casting machine is rolled in line to the desired final thickness and coiled. From such Metal strips produced are slugs, for example, by punching for tubes, cans and technical extrusion parts as well as circular blanks for pan bases manufactured.
- the casting cup has an open discharge channel, in which a weir is additionally arranged with a passage opening is. Via a flap control upstream of the weir in the discharge channel can the metal level on the weir and thus the supply of liquid metal into the casting machine.
- the regulation takes place, for example via a surface camera, which covers the surface of the liquid metal in front of the Measures the inlet opening, compares it with a target value and compares the actual value with the Flap position controls.
- the invention is therefore based on the object of a method of the beginning to create the type with which the disadvantages mentioned avoided can be.
- the task also includes creating a suitable one Casting machine.
- the method according to the invention leads to the achievement of the object, that the passage opening is arranged in the casting cup and for adjusting the Metal level above the opening the metal level in the pouring cup changed becomes.
- this is through the passage opening one of the mold walls running liquid metal free of an oxide skin.
- the metallostatic pressure and thus the supply of liquid Metal placed in the casting machine within a wide range can be what a change in casting speed within of a larger area.
- in the liquid metal before entering the mold set a substantially laminar flow.
- the metal level above the passage opening is expediently dependent on the location of the mold in the area of the inlet opening forming free meniscus of liquid metal set.
- the object is achieved according to the invention by a casting machine for the continuous casting of metal into a strand, with a closed cross section with an inlet and an outlet opening forming mold with constantly moving, cooled mold walls, with a pouring cup and a passage opening, with liquid Metal is fed to the casting cup via a pouring trough and out of the Giessbecher and through the passage opening with training one depending on the metallostatic pressure in the mold free meniscus is poured into the inlet opening of the mold and the strand solidifying in the casting mold emerges from the outlet opening, with a first control arrangement for setting the metal level in the casting cup and a second control arrangement for setting the metal level above the passage opening to regulate the supply of liquid metal for Mold.
- the casting machine is characterized in that the passage opening is arranged in the pouring cup and with the second control arrangement to adjust the metal level above the opening the metal level is changeable in the pouring cup.
- the pouring cup can expediently be tilted about a tilting axis.
- the passage opening can be used to form an essentially laminar flow to be configured as a nozzle, with a particularly preferred one Embodiment the nozzle over its length essentially one Mold wall is simulated.
- the tilt axis is preferably arranged in the area of the nozzle tip and the Giessbecher is expediently in the area of the tilt axis with support rollers fitted.
- the first control arrangement preferably includes for setting the metal level in the pouring cup a first distance measuring device for metal level measurement and the second control arrangement for setting the metal level above the Passage opening a second distance measuring device for determining the position of the free meniscus of the liquid metal in the area of the inlet opening of the Mold.
- a casting machine 10 shown in FIG. 1 instructs a casting wheel 12 with one the circumferential groove 14 arranged on its circumference.
- An endless circulation Steel strip 16 is on the edge areas 20, 22 of the peripheral surface of the casting wheel 12 guided guide roller 18 and covers the groove 14 over about half of the casting wheel circumference to form a casting mold 24 with a rectangular cross section.
- the rectangular cross section of the Casting mold 24 results from the width b of the groove 14, for example 230 mm and the depth a of the groove 14 of, for example, 25 mm.
- the casting wheel 12 rotates and synchronously with this the casting wheel 12 lying thereon Steel band 16, i.e.
- the mold 24 has between an inlet opening 26 for liquid metal 28 and an outlet opening 30 for one in the Casting mold 24 solidified metal strip 32 continuously moving along through the groove 14 and the steel band 16 formed mold wall 34, 36.
- the casting wheel 12 and the steel strip 16 are cooled with water. From time to time they will Surface of the steel strip 16 and the groove 14 of the casting wheel 12 with a Release agents - such as graphite - provided.
- the supply of liquid metal 28 to the casting machine 10 takes place via a Casting channel 42, at the end of which a feed pipe protruding into the casting cup 40 44 for transferring the liquid metal 28 from the pouring spout 42 is provided in the pouring cup 40.
- a plug rod 46 arranged plug 48 the cross section in the feed pipe 44 for setting the desired flow rate by appropriate Positioning of the plug 48 can be adjusted.
- the lifting and lowering of the stopper takes place via a linkage articulated on the stopper rod 46 50 by a lever movement about an axis of rotation f by means of a with the threaded spindle 54 connected stepper motor 56.
- the regulation of the metal level M in the pouring cup 40 takes place via a fixed, contactless distance measuring device, the metal level, for example, by means of a laser beam M measures and in the event of a deviation from a predefined setpoint a corresponding signal to the stepper motor 56 the position of the plug 48 in Supply pipe 44 changed until the actual value of the metal level M the Corresponds to the setpoint.
- An alternative regulation of the metal level M comprises a float, whose vertical position is determined capacitively using a displacement sensor.
- the supply of liquid metal 28 - for example aluminum - from the Pouring cup 40 into the casting mold is carried out via a slot die 38 Length I of, for example, 180 mm and a width s of, for example, 130 mm.
- the nozzle 38 is fixed interchangeably on the casting cup 40.
- the casting cup 40 has tab-shaped ends at its end remote from the nozzle 38 Brackets 60 arranged, which are connected to one another via a yoke 62 are.
- This tilting device for the pouring cup 40 and its mode of operation are clearly evident from FIGS. 1 and 3.
- FIGS. 1 and 2 there are 40 supports 70, 72 on the side of the casting cup with a first pair of opposing rollers 74, 76 in the area the tip of the nozzle 38 and a second pair facing each other and rollers 78, 80 set back relative to the first pair of rollers.
- the first pair of rollers 74, 76 lies in the casting operation, the groove 14 delimiting Edge areas 20, 22 on the circumference of the casting wheel 12 and defined thus a turning or tilting axis t of the pouring cup during the above-mentioned Height adjustment of the pouring cup 40, i.e. when executing the Tilting movement.
- the second pair of rollers set back from the first 78, 80 lies the edge regions 20, 22 of the casting wheel 12 at maximum lowering the pouring cup - for example during a pouring interruption - to protect the pouring cup from damage.
- this is the height adjustment device coupled pouring cups 40 via push rods 84 guided in bearing blocks 82 to the casting wheel 12 and movable away from it.
- the wall 88 of the pouring cup 40 which is adjacent to the nozzle 38, is close to the floor an opening slot 90 which merges into the slot 39 of the nozzle 38.
- the metal level M is always set so that it is above the Opening slot 90 is.
- the pouring cup 40 is removed at its nozzle 38 End raised by means of the threaded spindle 64, the metal level rises M on the front wall 88 above the opening slot 90, which is an increase the metallostatic pressure in the area of the opening slot 90 as well as at the tip of the nozzle 38, causing the flow rate of the liquid metal 28 in the nozzle 38 and thus the supply of liquid metal 28 increased in the mold 24.
- Fig. 5 shows the pouring cup 40 in the tilted position with a high metal level M on the wall 88 the opening slot 90.
- the upper edge 96 of the side walls 94 of the pouring cup 40 is V-shaped formed and at its lowest point with one shown in Fig. 4 Overflow channel 98 equipped. In casting operation with a maximum high metal level M on the wall 88 of the pouring cup 40 near the nozzle 38 is the upper edge 96 approximately parallel to the metal bath level.
- a closable opening near the bottom 100 provided for emptying the pouring cup when the pouring is stopped.
- the nozzle 38 is adapted in its longitudinal direction to the curvature of the casting wheel 12. This allows the metal level M in the casting cup 40 to be horizontal Position are kept as deep as possible, so that by the tilting movement of the Giessbechers 40 a maximum increase in the metal level M on the wall 88 can be set.
- the width s of the nozzle 38 is smaller than the width b of the Groove 14. This leaves a nozzle not covered on both sides of the nozzle
- the area in front of the inlet opening 26 of the mold 24 is freely accessible. In this Area forms the meniscus 29 of the flowing into the mold 24 liquid metal 28.
- the tilting movement of the pouring cup 40 is dependent on the Casting speed by measuring the position of the liquid metal meniscus 29, which by means of a further distance measuring device 92 - for example one Area scan camera or a laser probe - determined and with a given Setpoint is compared. If the actual and target values differ, a corresponding signal of the stepper motor 66 with the threaded spindle 64 in motion set and the pouring cup 40 according to the required increase or Lowering of the metallostatic pressure raised or lowered. There the height movement of the pouring cup 40 through the control system for the meniscus 29 for a change in the distance between the distance measuring device 58 for the stopper control and the metal level M leads to this Distance change in the distance measuring device 58 is compensated accordingly or balanced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
- Fig. 1 einen Längsschnitt durch einen Teil einer Giessmaschine;
- Fig. 2 eine teilweise geschnittene Draufsicht auf den Giessbecher der Giessmaschine von Fig. 1;
- Fig. 3 einen Querschnitt durch die Giessmaschine von Fig. 1 nach deren Linie A-A;
- Fig. 4 einen Querschnitt durch die Giessmaschine von Fig. 1 nach deren Linie B-B;
- Fig. 5 einen Längsschnitt durch einen Teil der Giessmaschine von Fig. 1 mit gekipptem Giessbecher.
Claims (12)
- Verfahren zum kontinuierlichen Giessen von Metall (28) zu einem Strang (32) mittels einer Giessmaschine (10) mit einer einen geschlossenen Querschnitt mit einer Eintritts (26)- und einer Austrittsöffnung (30) bildenden Giessform (24) mit stetig mitwandernden, gekühlten Formwandungen (34,36), bei welchem Verfahren flüssiges Metall (28) über eine Giessrinne (42) einem Giessbecher (40) zugeführt und aus dem Giessbecher sowie durch eine Durchtrittsöffnung (90) hindurch unter Ausbildung eines sich in Abhängigkeit vom metallostatischen Druck in der Giessform (24) einstellenden freien Meniskus (29) in die Eintrittsöffnung (26) der Giessform (24) gegossen wird und der in der Giessform erstarrende Strang (32) aus der Austrittsöffnung (30) austritt, wobei die Zufuhr von flüssigem Metall (28) zur Giessform (24) durch eine erste Einstellung des Metallstandes (M) im Giessbecher (40) und eine zweite Einstellung des Metallstandes über der Durchtrittsöffnung (90) geregelt wird,
dadurch gekennzeichnet, dass
die Durchtrittsöffnung (90) im Giessbecher (40) angeordnet ist und zur Einstellung des Metallstandes über der Durchtrittsöffnung (90) der Metallstand (M) im Giessbecher (40) verändert wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zur Veränderung des Metallstandes (M) im Giessbecher (40) der Giessbecher gekippt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass zur Veränderung des Metallstandes (M) im Giessbecher (40) die Zufuhr von flüssigem Metall (28) aus der Giessrinne (42) verändert wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass im flüssigen Metall (28) vor Eintritt in die Giessform (24) eine im wesentlichen laminare Strömung eingestellt wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Metallstand (M) über der Durchtrittsöffnung (90) in Abhängigkeit von der Lage des sich im Bereich der Eintrittsöffnung (26) der Giessform (24) ausbildenden freien Meniskus (29) des flüssigen Metalls (28) eingestellt wird.
- Giessmaschine zum kontinuierlichen Giessen von Metall (28) zu einem Strang (32), mit einer einen geschlossenen Querschnitt mit einer Eintritts (26)- und einer Austrittsöffnung (30) bildenden Giessform (24) mit stetig mitwandernden, gekühlten Formwandungen (34,36), mit einem Giessbecher (40) und einer Durchtrittsöffnung (90), wobei flüssiges Metall (28) über eine Giessrinne (42) dem Giessbecher (40) zugeführt und aus dem Giessbecher sowie durch die Durchtrittsöffnung (90) hindurch unter Ausbildung eines sich in Abhängigkeit von metallostatischem Druck der Giessform (24) einstellenden freien Meniskus (29) in die Eintrittsöffnung (26) der Giessform (24) gegossen wird und der in der Giessform erstarrende Strang (32) aus der Austrittsöffnung (30) austritt, mit einer ersten Regelanordnung (58) zur Einstellung des Metallstandes (M) im Giessbecher (40) und einer zweiten Regelanordnung (92) zur Einstellung des Metallstandes über der Durchtrittsöffnung (90) zur Regelung der Zufuhr von flüssigem Metall (28) zur Giessform (24),
dadurch gekennzeichnet, dass
die Durchtrittsöffnung (90) im Giessbecher (40) angeordnet ist und mit zweiten Regelanordnung (92) zur Einstellung des Metallstandes über der Durchtrittsöffnung (90) der Metallstand (M) im Giessbecher (40) veränderbar ist. - Giessmaschine nach Anspruch 6, dadurch gekennzeichnet, dass der Giessbecher zur Veränderung des Metallstandes (M) um eine Kippachse (t) kippbar ist.
- Giessmaschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Durchtrittsöffnung (90) zur Ausbildung einer im wesentlichen laminaren Strömung zu einer Düse (38) ausgestaltet ist.
- Giessmaschine nach Anspruch 8, dadurch gekennzeichnet, dass die Düse (38) über ihre Länge (I) im wesentlichen einer Formwandung (34) nachgebildet ist.
- Giessmaschine nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass die Kippachse (t) im Bereich der Spitze der Düse (38) angeordnet ist.
- Giessmaschine nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass der Giessbecher (40) im Bereich der Kippachse (t) mit Auflagerollen (74,76) ausgestattet ist.
- Giessmaschine nach einem der Ansprüche 6 bis 11, dadurch gekennzeichnet, dass die erste Regelanordnung zur Einstellung des Metallstandes (M) im Giessbecher (40) ein erstes Abstandsmessgerät zur Metallstandsmessung und die zweite Regelanordnung zur Einstellung des Metallstandes über der Durchtrittsöffnung (90) ein zweites Abstandsmessgerät zur Bestimmung der Lage des freien Meniskus des flüssigen Metalls im Bereich der Eintrittsöffnung der Giessform umfasst.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT99810488T ATE273092T1 (de) | 1999-06-03 | 1999-06-03 | Verfahren und vorrichtung zum kontinuierlichen giessen von metall |
SI9930659T SI1057557T1 (en) | 1999-06-03 | 1999-06-03 | Process and device for continuous casting of metal |
EP99810488A EP1057557B1 (de) | 1999-06-03 | 1999-06-03 | Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall |
DE59910202T DE59910202D1 (de) | 1999-06-03 | 1999-06-03 | Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99810488A EP1057557B1 (de) | 1999-06-03 | 1999-06-03 | Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1057557A1 true EP1057557A1 (de) | 2000-12-06 |
EP1057557B1 EP1057557B1 (de) | 2004-08-11 |
Family
ID=8242865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99810488A Expired - Lifetime EP1057557B1 (de) | 1999-06-03 | 1999-06-03 | Verfahren und Vorrichtung zum kontinuierlichen Giessen von Metall |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1057557B1 (de) |
AT (1) | ATE273092T1 (de) |
DE (1) | DE59910202D1 (de) |
SI (1) | SI1057557T1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108594751A (zh) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | 一种铝线轧机浇铸液位监控装置 |
CN108580826A (zh) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | 一种铝线轧机浇铸液位控制驱动机构 |
CN109396366A (zh) * | 2018-10-09 | 2019-03-01 | 青田美进家五金锁业有限公司 | 一种铝带熔铸成型装置 |
CN111570737A (zh) * | 2020-06-23 | 2020-08-25 | 涿州北方重工设备设计有限公司 | 浇铸机 |
CN114985689A (zh) * | 2022-05-16 | 2022-09-02 | 浙江天能电源材料有限公司 | 铅锭连铸机组 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103212677B (zh) * | 2013-05-13 | 2014-10-15 | 德阳宏广科技有限公司 | 一种浇煲调节装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1067114A (en) * | 1964-04-20 | 1967-05-03 | Alusuisse | Methods of and machines for continuously casting metal |
US3921697A (en) * | 1973-03-22 | 1975-11-25 | Hazelett Strip Casting Corp | Method and apparatus for controlling the operating conditions in continuous metal casting machines having a revolving endless casting belt |
US4276921A (en) * | 1978-04-06 | 1981-07-07 | Metallurgie Hoboken-Overpelt | Process and apparatus for the continuous casting of metal |
JPS6114059A (ja) * | 1984-06-29 | 1986-01-22 | Sumitomo Metal Ind Ltd | ツインベルトキヤスタの湯面レベル制御装置 |
EP0194327A1 (de) * | 1985-03-09 | 1986-09-17 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Einrichtung zur Regelung der Lage des Giessspiegels innerhalb einer Doppelbandstranggiesskokille |
-
1999
- 1999-06-03 DE DE59910202T patent/DE59910202D1/de not_active Expired - Fee Related
- 1999-06-03 SI SI9930659T patent/SI1057557T1/xx unknown
- 1999-06-03 EP EP99810488A patent/EP1057557B1/de not_active Expired - Lifetime
- 1999-06-03 AT AT99810488T patent/ATE273092T1/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1067114A (en) * | 1964-04-20 | 1967-05-03 | Alusuisse | Methods of and machines for continuously casting metal |
US3921697A (en) * | 1973-03-22 | 1975-11-25 | Hazelett Strip Casting Corp | Method and apparatus for controlling the operating conditions in continuous metal casting machines having a revolving endless casting belt |
US4276921A (en) * | 1978-04-06 | 1981-07-07 | Metallurgie Hoboken-Overpelt | Process and apparatus for the continuous casting of metal |
JPS6114059A (ja) * | 1984-06-29 | 1986-01-22 | Sumitomo Metal Ind Ltd | ツインベルトキヤスタの湯面レベル制御装置 |
EP0194327A1 (de) * | 1985-03-09 | 1986-09-17 | Fried. Krupp Gesellschaft mit beschränkter Haftung | Einrichtung zur Regelung der Lage des Giessspiegels innerhalb einer Doppelbandstranggiesskokille |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 159 (M - 486) 7 June 1986 (1986-06-07) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108594751A (zh) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | 一种铝线轧机浇铸液位监控装置 |
CN108580826A (zh) * | 2018-05-29 | 2018-09-28 | 上海中天铝线有限公司 | 一种铝线轧机浇铸液位控制驱动机构 |
CN109396366A (zh) * | 2018-10-09 | 2019-03-01 | 青田美进家五金锁业有限公司 | 一种铝带熔铸成型装置 |
CN111570737A (zh) * | 2020-06-23 | 2020-08-25 | 涿州北方重工设备设计有限公司 | 浇铸机 |
CN114985689A (zh) * | 2022-05-16 | 2022-09-02 | 浙江天能电源材料有限公司 | 铅锭连铸机组 |
Also Published As
Publication number | Publication date |
---|---|
SI1057557T1 (en) | 2004-12-31 |
DE59910202D1 (de) | 2004-09-16 |
EP1057557B1 (de) | 2004-08-11 |
ATE273092T1 (de) | 2004-08-15 |
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