CA2026244A1 - Cylinder for direct and continuous casting device fo thin sheets of liquid metal - Google Patents
Cylinder for direct and continuous casting device fo thin sheets of liquid metalInfo
- Publication number
- CA2026244A1 CA2026244A1 CA002026244A CA2026244A CA2026244A1 CA 2026244 A1 CA2026244 A1 CA 2026244A1 CA 002026244 A CA002026244 A CA 002026244A CA 2026244 A CA2026244 A CA 2026244A CA 2026244 A1 CA2026244 A1 CA 2026244A1
- Authority
- CA
- Canada
- Prior art keywords
- ferrule
- cylinder
- liquid metal
- shell
- continuous casting
- 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.)
- Abandoned
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title claims description 7
- 238000009749 continuous casting Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000002101 lytic effect Effects 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
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/0651—Casting wheels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Indole Compounds (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Glass Compositions (AREA)
- Metal Extraction Processes (AREA)
- Coating With Molten Metal (AREA)
- Metal Rolling (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
?~ 2 ~
CYLINDRE POUR DISPOSITIF De COULEE (`ONTINUE
DII~ECTE DE BANDES MINCES DE ~lETAL LIQUIDE
La presente .invention a pour objet un cylindre pour dispositif de coulée continue directe de bandes minces de métal liquide entre deux cylindres, ou sur un ~eul cylindre.
Comme on le sait, ces cylindres comportent un coeur cylindrique revêtu d'une virole généxalement en cuivre et sont refroidis par circulation d'un fluide de refroidissement, tel que l'eau, dans des canaux ménagés entre la virole et le coeur ou dans la virole. Or, on constate que les cylindres ainsi réalisés subissent en cours de coulée un bombage vers l'extérieur, de sorte que les produits coulés entre deux cylindres ainsi bombés présentent un profil en "os de chien". Leur épaisseur aux extrémités étant ainsi supérieure à leur épaisseur dans la zone média-ne, de tels produits ne sont donc pas satisfaisants.
Dans le cas de la coulée sur un seul cylindre, le bombage de celui-ci rend irrégulier le jeu entre le dispositif d'ali~entation en métal liquide et le cylindre. Ce dernier peut de ce fait venir au contact du réfractaire d'alimentation et le détérioxer.
L'invention a pour but de réaliser des cylindres permettant d'éliminer cet inconvénient et par conséquent d'obtenir des produits coulés de profil d'épaisseur satisfaisant.
Suivant l'invention, le cylindre comporte, autour de la premiere virole, une deuxième virole formant avec la première deux couches cylindriques superposées, et choisies en des matériaux tels que la virole intexne a un coefficient de dilatation plus élevé que celui de la virole externe, en contact avec le métal liquide.
Les coefficients de dilatation et donc les ~ ~ ~,3J '!;~ tJ 'V'~
matériaux correspondants sont choisis Pour que la dilatation différentielle entre les deux ma~ériaux compense la tendance qu'aurait la double virole ainsi réalisée à se bomber, en particulier au niveau de l'entraxe des cylindres.
La virole interne peut etre par exemple en cuivre tandis que la virole externe est en acier, ces deux viroles étant soudées l'une à l'autre.
D'autres particularités et avantages de l'invention apparaitront au cours de la description qui va suivre, faite en ré~érence aux dessins annexés qui en illustrent une forme de réalisation à titre d'exemple non limitatif.
La fiqure 1 est une vue en perspective d ' un cylindre comportant une double virole selon l'inven-tion et destiné à un dispositif de coulée continue de bandes minces de métal.
La figure 2 est une vue en coupe partielle axiale du cylindre de la Fig.1.
Le cylindre 1 représenté aux dessins est destiné à un dispositif pour la fabrication de bandes métalliques minces par coulée continue directe de métal liquide tel que de l'acier, entre deux cylindres 1 similaires. Un tel dispositif est bien connu en soi et n'a donc pas été représenté.
Le cylindre 1, d'axe XX, est constitué d'un coeur interne 2 cylindrique et de deux viroles annulaires 3, 4 superposées, qui entourent le coeur interne 2, dans lequel sont ménagés des canaux 5 de refroidissement où peut circuler de l'eau. Les deux couches superposées 3 et 4 sont choisies en des matériaux tels que la virole interne 3 a un coeffi-cient de dilatation thermique plus élevé que celui de la virole externe 4 en contact avec le métal liquide.
~ ~ J~I~3~L.i~
Les deux viroles 3 et 4 sont liées l'une à
l'autre, par exemple par soudage, par chargement de l'un des matériaux sur l'autre, ou par dépôt électro-lytique. A titre d'exemple non limitatif, la virole interne 3 est en cuivre et la virole externe 4 en acier, le cuivre ayant en effet un coefficient de dilatation supérieur à celui de l'acier.
Les épaisseurs des deux couches 3 et 4 sont ajustées en fonction des coefficients de dilatat.ion des matériaux choisis.
Ainsi, lorsque la double virole 3, 4 est soumise au fort gradient de température rencontré lors du contact de la couche externe 4 avec le métal liquide, la dilatation différentielle entre les deux matériaux des couches 3 et 4 compense la tendance de la double virole à se bomber, notamment au niveau de l'entraxe des deux cylindres du dispositif.
La virole interne 3 est de préférence en cuivre et a une épaisseur de 5 à 30mm. La virole externe peut être en acier, nickel ou chrome, et avoir une épaisseur de 1 à 10mm.
A titre d'exemple :
- cylindre : diamètre 1500~m, largeur : 800m~
- virole interne : cuivre, épaisseur 15mm - virole externe : acier ou nickel ; épaisseur 2mm - les viroles sont liées l'une à l'autre sur toute la surface tvirole externe constituée par un revêtement déposé sur la virole interne) - température de l'acier coulé : 1g50-- température à la paroi interne de la virole interne:
60~C (sensiblement égale à la température de l'eau de refroidissement).
résultat : le bombé du cylindre est de 0,3mm, alors ~ue si la virole est entièrement en - ~
, )J l,,Jc~1 cuivre, le bombé est d'environ 1mm.
On pourrait encore réduire le bombé restant en choisissant comme revêtement (virole externe) un matériau ayant un coefficient de dilatation plus faible et une meilleure conductibilité thermique, tel que le chrome.
Enfin, il convient de préciser que l'inven-tion n'est pas limitée à une disposition des canaux de refroidissement 5 sous la virole double (3, 4~, mais que ces canaux peuvent être forés dans la virole interne 3.
Il convient aussi de préciser que l'épais-seur de la virole en cuivre mentionnée i-dessus correspond au cas où les canaux de refroidissement sont ménagés sous cette virole. Dans le cas où les canaux sont ménagés dans la virole interne, l'épais-seur considérée est la distance radiale entre ces canaux et l'interface virole interne-virole extexne, car dans ce cas, l'épaisseur de virole interne située entre les canaux et le coeur est maintenue à basse température et n'influence que peu l'e~fet de dilata-tion diffé~entielle. ? ~ 2 ~
CYLINDER FOR CASTING DEVICE (`ONTINUOUS
DII ~ ECTE OF THIN STRIPS OF ~ LIQUID LETHAL
The purpose of this invention is to cylinder for direct continuous casting device thin strips of liquid metal between two cylinders, or on a ~ eul cylinder.
As we know, these cylinders have a cylindrical core coated with a ferrule genetically copper and are cooled by circulation of a coolant, such as water, in channels between the shell and the heart or in the ferrule. However, it can be seen that the cylinders thus produced undergo a bending during casting the outside, so that the products poured between two cylinders thus curved have a profile in "dog bone". Their thickness at the ends being thus greater than their thickness in the media area-ne, such products are therefore not satisfactory.
In the case of casting on a single cylinder, the bending of it makes the clearance between the metal feeding device liquid and the cylinder. The latter can therefore come into contact with the food refractory and the deteriorate.
The object of the invention is to produce cylinders to eliminate this drawback and therefore to get cast products in profile of satisfactory thickness.
According to the invention, the cylinder comprises, around the first ferrule, a second ferrule forming with the first two cylindrical layers superimposed, and chosen from materials such as internal ferrule has a higher coefficient of expansion higher than that of the outer shell, in contact with liquid metal.
The expansion coefficients and therefore the ~ ~ ~, 3J '!; ~ TJ' V '~
corresponding materials are chosen so that the differential expansion between the two ma ~ erals compensates for the tendency that the double ferrule would have as well performed to bulge, in particular at the level of the center distance of the cylinders.
The internal ferrule can be for example in copper while the outer shell is made of steel, these two ferrules being welded to each other.
Other features and advantages of the invention will appear during the description which will follow, made in re ~ erence to the accompanying drawings which illustrate an embodiment thereof as non-limiting example.
Figure 1 is a perspective view of a cylinder comprising a double ferrule according to the invention tion and intended for a continuous casting device thin metal strips.
Figure 2 is a partial sectional view axial of the cylinder of Fig. 1.
The cylinder 1 shown in the drawings is for a device for the production of strips thin metal by direct continuous casting of liquid metal such as steel, between two cylinders 1 similar. Such a device is well known in itself and was therefore not represented.
The cylinder 1, of axis XX, consists of a internal core 2 cylindrical and two ferrules annulars 3, 4 superimposed, which surround the heart internal 2, in which channels 5 are formed cooling where water can circulate. Both superimposed layers 3 and 4 are chosen in materials such as the inner shell 3 has a coefficient cient of thermal expansion higher than that of the outer shell 4 in contact with the liquid metal.
~ ~ J ~ I ~ 3 ~ Li ~
The two ferrules 3 and 4 are linked one to the other, for example by welding, by loading one of the materials on the other, or by electro- deposition lytic. By way of nonlimiting example, the ferrule internal 3 is made of copper and the external shell 4 is made of steel, copper having a coefficient of expansion greater than that of steel.
The thicknesses of the two layers 3 and 4 are adjusted according to the expansion coefficients chosen materials.
So when the double ferrule 3, 4 is subject to the strong temperature gradient encountered during of the contact of the outer layer 4 with the metal liquid, the differential expansion between the two materials of layers 3 and 4 compensates for the tendency of the double ferrule to be bulged, in particular at the level of the distance between the two cylinders of the device.
The internal ferrule 3 is preferably in copper and has a thickness of 5 to 30mm. The ferrule external can be steel, nickel or chrome, and have a thickness of 1 to 10mm.
For exemple :
- cylinder: diameter 1500 ~ m, width: 800m ~
- internal ferrule: copper, thickness 15mm - external ferrule: steel or nickel; thickness 2mm - the ferrules are linked to each other over the entire external tvirole surface constituted by a coating deposited on the internal shell) - temperature of the cast steel: 1g50-- temperature at the inner wall of the inner shell:
60 ~ C (substantially equal to the water temperature of cooling).
result: the crown of the cylinder is 0.3mm, then ~ ue if the shell is entirely in - ~
, ) J l ,, Jc ~ 1 copper, the bulge is about 1mm.
We could further reduce the remaining bulge by choosing as coating (external shell) a material with a higher coefficient of expansion low and better thermal conductivity, such than chrome.
Finally, it should be noted that the invention tion is not limited to a channel layout of cooling 5 under the double shell (3, 4 ~, but that these channels can be drilled in the shell internal 3.
It should also be noted that the thick-Sister of the copper ferrule mentioned above corresponds to the case where the cooling channels are provided under this shell. In case the channels are provided in the inner shell, the thick seur considered is the radial distance between these channels and the internal ferrule-external ferrule interface, because in this case, the thickness of the internal ferrule located between the channels and the heart is kept low temperature and has little influence on the dilation effect tion diffé ~ entielle.
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR898912855A FR2652525B1 (en) | 1989-10-02 | 1989-10-02 | CYLINDER FOR A DEVICE FOR DIRECT CONTINUOUS CASTING OF THIN STRIPS OF LIQUID METAL. |
| FR89.12855 | 1989-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2026244A1 true CA2026244A1 (en) | 1991-04-03 |
Family
ID=9386004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002026244A Abandoned CA2026244A1 (en) | 1989-10-02 | 1990-09-26 | Cylinder for direct and continuous casting device fo thin sheets of liquid metal |
Country Status (22)
| Country | Link |
|---|---|
| EP (1) | EP0421908B1 (en) |
| JP (1) | JP3262560B2 (en) |
| KR (1) | KR0169721B1 (en) |
| CN (1) | CN1034480C (en) |
| AT (1) | ATE102098T1 (en) |
| AU (1) | AU634818B2 (en) |
| BR (1) | BR9004911A (en) |
| CA (1) | CA2026244A1 (en) |
| CS (1) | CS9004774A3 (en) |
| DD (1) | DD298216A5 (en) |
| DE (1) | DE69007001T2 (en) |
| DK (1) | DK0421908T3 (en) |
| ES (1) | ES2050991T3 (en) |
| FI (1) | FI91134C (en) |
| FR (1) | FR2652525B1 (en) |
| HU (1) | HU208931B (en) |
| IE (1) | IE903457A1 (en) |
| NO (1) | NO904263L (en) |
| PL (1) | PL164353B1 (en) |
| PT (1) | PT95480A (en) |
| YU (1) | YU185390A (en) |
| ZA (1) | ZA907828B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69425960T2 (en) | 1994-06-13 | 2001-03-22 | Mitsubishi Jukogyo K.K., Tokio/Tokyo | Cooling roller for continuous casting and its production |
| AU659364B1 (en) * | 1994-06-21 | 1995-05-11 | Mitsubishi Jukogyo Kabushiki Kaisha | Cooling drum for a continuous casting system and method for manufacturing the same |
| US5598633A (en) * | 1994-07-12 | 1997-02-04 | Norandal Usa, Inc. | Method of manufacturing a caster roll core and shell assembly |
| WO1998052706A1 (en) * | 1997-05-23 | 1998-11-26 | Voest-Alpine Industrieanlagenbau Gmbh | Casting cylinder for thin-band continuous casting installation |
| DE10134074C1 (en) * | 2001-07-13 | 2003-01-23 | Thyssenkrupp Nirosta Gmbh | Casting roller used for casting molten metal, especially molten steel, comprises a metallic rolling body having a metallic layer which is harder than the material of the rolling body |
| EP2687303A1 (en) * | 2012-07-20 | 2014-01-22 | SMS Concast AG | Roll arrangement for a continuous casting apparatus |
| CN103611898B (en) * | 2013-12-10 | 2016-08-10 | 青岛云路先进材料技术有限公司 | Copper sheathing manufacture method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1844062A (en) * | 1930-05-27 | 1932-02-09 | Pittsburgh Plate Glass Co | Fluid cooled roll |
| FR1290938A (en) * | 1961-03-07 | 1962-04-20 | Saint Gobain | Rolls for laminating glass or other thermoplastic materials |
| FR2367557A1 (en) * | 1976-10-15 | 1978-05-12 | Usinor | GUIDANCE ROLLERS IMPROVEMENTS, ESPECIALLY FOR CONTINUOUS CASTING INSTALLATION |
| FR2467030A1 (en) * | 1979-10-09 | 1981-04-17 | Pont A Mousson | Bi:metallic steel barrel for continuous casting roller - having external layer of tempered martensite structure stainless steel and inner layer of low carbon manganese molybdenum- niobium steel |
| JPS5982149A (en) * | 1982-11-02 | 1984-05-12 | Nippon Steel Corp | Cooling roll for ultra-quenched metal production |
-
1989
- 1989-10-02 FR FR898912855A patent/FR2652525B1/en not_active Expired - Lifetime
-
1990
- 1990-09-20 KR KR1019900014896A patent/KR0169721B1/en not_active Expired - Fee Related
- 1990-09-21 DK DK90470053.1T patent/DK0421908T3/en active
- 1990-09-21 EP EP90470053A patent/EP0421908B1/en not_active Expired - Lifetime
- 1990-09-21 AT AT90470053T patent/ATE102098T1/en not_active IP Right Cessation
- 1990-09-21 ES ES90470053T patent/ES2050991T3/en not_active Expired - Lifetime
- 1990-09-21 DE DE69007001T patent/DE69007001T2/en not_active Expired - Fee Related
- 1990-09-25 AU AU63163/90A patent/AU634818B2/en not_active Ceased
- 1990-09-25 IE IE345790A patent/IE903457A1/en unknown
- 1990-09-26 CA CA002026244A patent/CA2026244A1/en not_active Abandoned
- 1990-09-28 CN CN90108041A patent/CN1034480C/en not_active Expired - Fee Related
- 1990-09-28 DD DD90344280A patent/DD298216A5/en not_active IP Right Cessation
- 1990-10-01 PT PT95480A patent/PT95480A/en not_active Application Discontinuation
- 1990-10-01 ZA ZA907828A patent/ZA907828B/en unknown
- 1990-10-01 BR BR909004911A patent/BR9004911A/en unknown
- 1990-10-01 CS CS904774A patent/CS9004774A3/en not_active IP Right Cessation
- 1990-10-01 HU HU906281A patent/HU208931B/en not_active IP Right Cessation
- 1990-10-01 FI FI904829A patent/FI91134C/en active IP Right Grant
- 1990-10-01 YU YU185390A patent/YU185390A/en unknown
- 1990-10-01 NO NO90904263A patent/NO904263L/en unknown
- 1990-10-02 PL PL90287149A patent/PL164353B1/en not_active IP Right Cessation
- 1990-10-02 JP JP26489590A patent/JP3262560B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| YU185390A (en) | 1993-10-20 |
| ATE102098T1 (en) | 1994-03-15 |
| BR9004911A (en) | 1991-09-10 |
| HUT57104A (en) | 1991-11-28 |
| FR2652525B1 (en) | 1994-06-10 |
| PL287149A1 (en) | 1991-09-23 |
| HU208931B (en) | 1994-02-28 |
| CN1050693A (en) | 1991-04-17 |
| ZA907828B (en) | 1992-05-27 |
| DE69007001T2 (en) | 1994-07-14 |
| NO904263D0 (en) | 1990-10-01 |
| IE903457A1 (en) | 1991-04-24 |
| DE69007001D1 (en) | 1994-04-07 |
| HU906281D0 (en) | 1991-03-28 |
| NO904263L (en) | 1991-04-03 |
| CN1034480C (en) | 1997-04-09 |
| DD298216A5 (en) | 1992-02-13 |
| DK0421908T3 (en) | 1994-06-06 |
| PL164353B1 (en) | 1994-07-29 |
| CS275363B2 (en) | 1992-02-19 |
| PT95480A (en) | 1991-06-25 |
| AU6316390A (en) | 1991-04-11 |
| AU634818B2 (en) | 1993-03-04 |
| FI91134C (en) | 1994-05-25 |
| FR2652525A1 (en) | 1991-04-05 |
| KR0169721B1 (en) | 1999-01-15 |
| FI904829A0 (en) | 1990-10-01 |
| ES2050991T3 (en) | 1994-06-01 |
| KR910007604A (en) | 1991-05-30 |
| JP3262560B2 (en) | 2002-03-04 |
| CS9004774A3 (en) | 1992-02-19 |
| EP0421908A1 (en) | 1991-04-10 |
| FI91134B (en) | 1994-02-15 |
| EP0421908B1 (en) | 1994-03-02 |
| JPH03133550A (en) | 1991-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |