EP0167056A2 - Dispositif pour la coulée continue de métaux - Google Patents
Dispositif pour la coulée continue de métaux Download PDFInfo
- Publication number
- EP0167056A2 EP0167056A2 EP85107527A EP85107527A EP0167056A2 EP 0167056 A2 EP0167056 A2 EP 0167056A2 EP 85107527 A EP85107527 A EP 85107527A EP 85107527 A EP85107527 A EP 85107527A EP 0167056 A2 EP0167056 A2 EP 0167056A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- insulating
- mold
- continuous casting
- release agent
- 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
- 238000009749 continuous casting Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 150000002739 metals Chemical class 0.000 title claims abstract description 5
- 239000002826 coolant Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 36
- 238000005266 casting Methods 0.000 claims description 10
- 229910001651 emery Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0401—Moulds provided with a feed head
-
- 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
- B22D11/07—Lubricating the moulds
Definitions
- the invention relates to a device for the continuous casting of metals with a continuous casting mold which can be cooled in particular by coolant and with a thermally insulating insulating attachment.
- the coolant that cools the mold is often also used to be directed against the outer shell of the cast strand in order to ensure accelerated cooling thereof.
- release agents which simultaneously serve as lubricants, this results in an even better continuous casting or ingot surface quality. It has been shown, however, that the release agent is to be supplied in a very dosed manner within very narrow limits.
- the invention has for its object to improve the device with simple means in such a way that a simple and optimal dosage according to the respective application of the supply of release agents takes place.
- the invention consists in that the release agent feed channel or the release agent feed channels are formed in that the unevenness and depressions of an insert which is grainy on at least one surface serve to feed the release agent to the effective point.
- an insert which is grainy on at least one surface serve to feed the release agent to the effective point.
- This insert can for example be simply inserted axially between two abutting parts of the device in the manner of a washer.
- the feed channels formed by the "labyrinth" of the unevenness between an interface of such a device part and the insert guide the release agent, in particular under the force of gravity, to the decisive point between the inner wall and the casting strand.
- the release agent requirement is low, a very fine micro-grain size of 1000 (18fm) is recommended and if the release agent requirement is large, a grain size of 180 (75 ⁇ m) grain, for example, while emery paper with a grain size of 320 (46 ⁇ m) allows good optimization.
- the consumption of release agents per cast strand of 200 mm 0 and 7,500 mm in length is only 2 gr when using rapeseed oil.
- ceramic insulating rings in particular are stacked axially one behind the other in order to form the insulating insert.
- the insulating rings are held radially within an essentially tubular sensor.
- the insulating rings are substantially prevented from expanding radially during operation, as a result of which the risk of cracks can be countered well, without any significant additional costs.
- the longer service life of the insulation insert significantly reduces the overall costs. In addition, this enables a quick change of insulating rings.
- the transducer also protects the thermally insulating insulating rings from "impregnation" with release agents, so that the risk of cracks is further reduced and unnecessary release agent consumption is avoided.
- a graphite insert is arranged below the hot head, the friction between the mold wall running surface and the solidifying metal is reduced in connection with the separating agent guided along its inner wall; In addition, indirect cooling is reduced in that area, which has an even better surface quality of the cast strand.
- the device for casting round bars is formed.
- the cast strand (not shown) slides along the inner lateral surface la of the mold 1 before it comes into contact with coolant KM, which emerges from the mold 1 through the coolant supply channel 16 from a coolant supply chamber 15.
- the coolant storage chamber 15 of the mold 1 is also limited by the device parts 12, 13 and 14; the annular device part 14 is provided with an opening 17 for supplying coolants KM.
- the mold 1 is turned out above the inner circumferential surface la, specifically for receiving a shrunk-in annular insert 2 made of graphite and for receiving the insulating attachment or insert serving as a hot head.
- This insulating attachment is formed by the essentially tubular sensor 4, which has a collar 4a at the bottom, on which the lower of the four insulating rings 3 is supported.
- the insulating rings 3 are together between this collar 4a and the clamping ring 9 amount that is clamped with the help of a torque wrench in the axial direction on the insulating rings 3, which are made of ceramic material. After unscrewing the clamping ring 9, the insulating rings 3 can be removed from the tubular sensor 4 and exchanged.
- the outer circumferential surface 4b of the sensor 4 is located at a radial distance from the inner circumferential surface 1b of the mold 1, so that there is an annular connecting line 10 between the separating agent chamber 6 and the area which is between the lower part of the connecting line 10 and the lower part of the lowest insulating ring 3 or the upper part of the insert 2 made of graphite.
- the feed channel 18 - in reality consisting of an abundance of individual labyrinth-like tubules - is formed by the unevenness and depressions on the underside of the granular surface 7a of the insert 7 consisting of emery paper, which on the underside by means of the adhesive on the back 7b of the transducer 4 is also glued in the region of its collar 4a.
- the release agent which in particular should also have lubricant properties, is filled into the release agent chamber 6 via the opening 5, so that the gravity of the liquid column of the release agent above the insert 7 drives the release agent in a metered manner radially inward through the feed channel 18.
- the insert 7 therefore serves at the same time as a kind of "distributor ring" for the uniform supply of release agents to all the outer surfaces of the casting strand.
- the opening 5 is closed and the sealing ring 8, in particular an O-ring, is prevented. the passage of release agent from the gap between the sensor 4 and the mold 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85107527T ATE31644T1 (de) | 1984-07-03 | 1985-06-18 | Vorrichtung zum stranggiessen von metallen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843424457 DE3424457A1 (de) | 1984-07-03 | 1984-07-03 | Vorrichtung zum stranggiessen von metallen |
DE3424457 | 1984-07-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0167056A2 true EP0167056A2 (fr) | 1986-01-08 |
EP0167056A3 EP0167056A3 (en) | 1986-10-08 |
EP0167056B1 EP0167056B1 (fr) | 1988-01-07 |
Family
ID=6239732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85107527A Expired EP0167056B1 (fr) | 1984-07-03 | 1985-06-18 | Dispositif pour la coulée continue de métaux |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0167056B1 (fr) |
AT (1) | ATE31644T1 (fr) |
DE (2) | DE3424457A1 (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0372946A2 (fr) * | 1988-12-08 | 1990-06-13 | Alcan International Limited | Lubrication des lingotières de coulée continue |
US5033535A (en) * | 1990-03-26 | 1991-07-23 | Alcan International Limited | Lubrication system for casting moulds |
EP0566865A1 (fr) * | 1992-04-15 | 1993-10-27 | VAW Aluminium AG | Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue |
FR2704786A3 (fr) * | 1993-03-30 | 1994-11-10 | Lorraine Laminage | Procédé de coulée continue en charge des métaux, notamment de l'acier, et lingotière pour sa mise en Óoeuvre. |
US5678623A (en) * | 1995-05-12 | 1997-10-21 | Norsk Hydro A.S. | Casting equipment |
EP0811446A1 (fr) * | 1996-06-06 | 1997-12-10 | Alusuisse Technology & Management AG | Lingotière de coulée continue |
US5873405A (en) * | 1997-06-05 | 1999-02-23 | Alcan International Limited | Process and apparatus for direct chill casting |
WO2002074471A1 (fr) * | 2001-03-20 | 2002-09-26 | Sms Demag Aktiengesellschaft | Coquille de coulee continue pour metaux liquides, notamment pour acier liquide |
WO2002100572A1 (fr) * | 2001-06-12 | 2002-12-19 | Calsitherm Silikatbaustoffe Gmbh | Anneau de tete chaude a centrage automatique |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6397925B1 (en) * | 1998-03-05 | 2002-06-04 | Honda Giken Kogyo Kabushiki Kaisha | Agitated continuous casting apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT264739B (de) * | 1965-07-24 | 1968-09-10 | Vaw Ver Aluminium Werke Ag | Verfahren und Einrichtung zur Zuführung des Schmiermittels beim vollkontinuierlichen Gießen von Metallen in stationären Kokillen |
DE1296315B (de) * | 1964-12-02 | 1969-05-29 | Aluminium Lab Ltd | Thermisch isolierender Schutzueberzug |
DE2538765A1 (de) * | 1975-09-01 | 1977-03-10 | Willi Cremerius | Dichtungsschnur fuer die verwendung bei hohen temperaturen |
US4057100A (en) * | 1975-06-07 | 1977-11-08 | Vereinigte Aluminum-Werke Aktiengesellschaft | Apparatus for the lubrication of hot head continuous casting molds |
-
1984
- 1984-07-03 DE DE19843424457 patent/DE3424457A1/de active Granted
-
1985
- 1985-06-18 EP EP85107527A patent/EP0167056B1/fr not_active Expired
- 1985-06-18 AT AT85107527T patent/ATE31644T1/de not_active IP Right Cessation
- 1985-06-18 DE DE8585107527T patent/DE3561290D1/de not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1296315B (de) * | 1964-12-02 | 1969-05-29 | Aluminium Lab Ltd | Thermisch isolierender Schutzueberzug |
AT264739B (de) * | 1965-07-24 | 1968-09-10 | Vaw Ver Aluminium Werke Ag | Verfahren und Einrichtung zur Zuführung des Schmiermittels beim vollkontinuierlichen Gießen von Metallen in stationären Kokillen |
US4057100A (en) * | 1975-06-07 | 1977-11-08 | Vereinigte Aluminum-Werke Aktiengesellschaft | Apparatus for the lubrication of hot head continuous casting molds |
DE2538765A1 (de) * | 1975-09-01 | 1977-03-10 | Willi Cremerius | Dichtungsschnur fuer die verwendung bei hohen temperaturen |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0372946A2 (fr) * | 1988-12-08 | 1990-06-13 | Alcan International Limited | Lubrication des lingotières de coulée continue |
EP0372946A3 (fr) * | 1988-12-08 | 1991-02-06 | Alcan International Limited | Lubrication des lingotières de coulée continue |
AU620180B2 (en) * | 1988-12-08 | 1992-02-13 | Alcan International Limited | Lubrication of continuous casting moulds |
US5033535A (en) * | 1990-03-26 | 1991-07-23 | Alcan International Limited | Lubrication system for casting moulds |
EP0566865A1 (fr) * | 1992-04-15 | 1993-10-27 | VAW Aluminium AG | Système d'alimentation et de distribution pour gaz et fluide de lubrification pour un dispositif de coulée continue |
US5320159A (en) * | 1992-04-15 | 1994-06-14 | Vaw Aluminum Ag | Continuous casting apparatus having gas and mold release agent supply and distribution plate |
FR2704786A3 (fr) * | 1993-03-30 | 1994-11-10 | Lorraine Laminage | Procédé de coulée continue en charge des métaux, notamment de l'acier, et lingotière pour sa mise en Óoeuvre. |
US5678623A (en) * | 1995-05-12 | 1997-10-21 | Norsk Hydro A.S. | Casting equipment |
EP0811446A1 (fr) * | 1996-06-06 | 1997-12-10 | Alusuisse Technology & Management AG | Lingotière de coulée continue |
US5873405A (en) * | 1997-06-05 | 1999-02-23 | Alcan International Limited | Process and apparatus for direct chill casting |
WO2002074471A1 (fr) * | 2001-03-20 | 2002-09-26 | Sms Demag Aktiengesellschaft | Coquille de coulee continue pour metaux liquides, notamment pour acier liquide |
WO2002100572A1 (fr) * | 2001-06-12 | 2002-12-19 | Calsitherm Silikatbaustoffe Gmbh | Anneau de tete chaude a centrage automatique |
Also Published As
Publication number | Publication date |
---|---|
EP0167056B1 (fr) | 1988-01-07 |
DE3424457C2 (fr) | 1989-05-24 |
EP0167056A3 (en) | 1986-10-08 |
DE3561290D1 (en) | 1988-02-11 |
ATE31644T1 (de) | 1988-01-15 |
DE3424457A1 (de) | 1986-01-16 |
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