EP1058588B1 - Installation de fabrication de bandes d'acier inoxydable laminees a froid - Google Patents
Installation de fabrication de bandes d'acier inoxydable laminees a froid Download PDFInfo
- Publication number
- EP1058588B1 EP1058588B1 EP99904921A EP99904921A EP1058588B1 EP 1058588 B1 EP1058588 B1 EP 1058588B1 EP 99904921 A EP99904921 A EP 99904921A EP 99904921 A EP99904921 A EP 99904921A EP 1058588 B1 EP1058588 B1 EP 1058588B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- plant
- installation
- annealing
- 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.)
- Expired - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 17
- 239000010935 stainless steel Substances 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims description 85
- 238000000137 annealing Methods 0.000 claims description 27
- 238000005097 cold rolling Methods 0.000 claims description 23
- 238000005266 casting Methods 0.000 claims description 22
- 238000005098 hot rolling Methods 0.000 claims description 22
- 238000009749 continuous casting Methods 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 7
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 2
- 238000005304 joining Methods 0.000 claims 1
- 238000005554 pickling Methods 0.000 description 20
- 238000004804 winding Methods 0.000 description 13
- 238000011282 treatment Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000002184 metal Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 235000014692 zinc oxide Nutrition 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 229940105847 calamine Drugs 0.000 description 4
- 229910052864 hemimorphite Inorganic materials 0.000 description 4
- 239000004848 polyfunctional curative Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- CPYIZQLXMGRKSW-UHFFFAOYSA-N zinc;iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+3].[Fe+3].[Zn+2] CPYIZQLXMGRKSW-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001080024 Telles Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000287107 Passer Species 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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- 238000000866 electrolytic etching Methods 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
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- 230000000930 thermomechanical effect Effects 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Definitions
- the invention relates to the manufacture of stainless steel strips. More specifically, it relates to a production facility for such tapes bringing together all the stages of this production, from casting to cold rolling.
- Annealing and pickling after cold rolling can be replaced by a bright annealing, depending on the condition and surface appearance desired for the strip.
- EP 0 695 808 presents an example.
- the object of the invention is to propose a method of manufacturing steel strips cold rolled stainless steel to regularly ensure a very good quality of surface of said strips, as well as a manufacturing installation adapted to this method.
- the installation also includes a hot rolling mill arranged after the installation of continuous casting.
- This hot rolling mill can be followed by a annealing installation.
- the casting installation can be of the “casting between two cylinders” type.
- the invention consists in continuously executing, on a line single manufacturing, all stages of manufacturing a stainless steel strip cold rolled made from a thin strip cast directly from metal liquid, from casting to finishing operations and packaging of the strip in reel form ready to be sent to the customer.
- the inventors have realized that the residual scale inlays and surface cracks, which are too often found on the strips cold rolled obtained by conventional batch plants, are considerably reduced if we remove all the intermediate windings that must normally undergo the tape before its transfers from one workshop to another.
- the implementation reel can only be done by subjecting the strip to a tension which, in the case of nuances particularly fragile, may be sufficient to damage it, during the winding itself or during the time that the cooled strip, therefore not very malleable, passes in the form of coil.
- the stay of the strip in the form of tight turns on each others helps to build up calamine deep in its surface layers residual which may remain on its surface if it has been imperfectly cleaned before winding.
- the elimination of all the intermediate windings allowed by the process and the entirely continuous line according to the invention therefore gives the possibility of eliminating important causes of deterioration of the surface quality of the strips.
- the treatment line according to the invention can be relatively compact, and it occupies less floor space anyway than the set of discontinuous installations (and often very distant geographically) which it replaces. In addition, it becomes easy to group on a single site close to the line the different workshops that fulfill functions common to different parts of the installation.
- the attached single figure schematically shows an example of installation according to the invention.
- an installation 1 for continuous strip casting thin itself composed of a pocket 2 containing the liquid steel to be poured, of a distributor 3 collecting a jet 4 of liquid steel, and supplying a jet 5 of liquid steel with a ingot mold composed of two cylinders 6, 6 'with horizontal axes, internally cooled and rotated in opposite directions.
- Their cylindrical side surfaces define a space casting with the smallest width corresponding to the thickness of the strip to be cast and which is laterally closed by plates 7 of refractory material applied against ends of cylinders 6, 6 '.
- the liquid steel solidifies in the mold in the form of a thin strip 8 of stainless steel, the thickness of which is of the order of 1 to 10 mm for this type of a casting machine, which is continuously extracted from the mold by rollers pincers not shown.
- the strip 8 then preferably passes through an enclosure 9 to the interior of which an atmosphere is kept as little oxidizing as possible at the by inerting with a neutral gas such as argon or nitrogen, or with a reducing gas such as hydrogen, in order to limit the formation of scale on its surface.
- the walls of the enclosure 9 also makes it possible to return the radiation which results therefrom to the strip 8, and thus limit the thermal losses of the strip 8.
- the latter then passes, so known in a hot rolling mill 10 whose function is to reduce its thickness, close any internal porosities and cause recrystallization of the grains which is favorable, in particular, to avoid the appearance of ragging on the stretched products which will subsequently be produced from strip 8. Then, in a manner which is also known here, the strip 8 passes through an annealing furnace 11 if it is desired to carry out such a heat treatment.
- the part of the installation just described corresponds to the description usual of a thin strip continuous casting installation and treatment which can conventionally be directly connected to it.
- the casting installation can be of a different type from a casting between cylinders, for example example a casting between running bands, or on a single cylinder, and produce bands a little thicker or thinner than the 1 to 10 mm previously mentioned.
- the presence of the hot rolling mill 10 is only optional, as is that of the annealing furnace 11, the presence and use of which is not necessarily linked to that of the hot rolling mill 10.
- it is desired to carry out treatments on the strip 8 which has just been poured more complex thermal / thermomechanical it is possible to install on the manufacture of other devices such as additional ovens and coolers.
- the strip 8 then passes through a first strip accumulator 12, which separates the "heat treatment" part of the next part of the line, in which performed descaling of the strip 8.
- This accumulator 12 makes it possible to independent of each other the running speeds of the strip 8 in these two parts of the line, as well as continuing to supply metal to one of the two parts when the other is temporarily stopped.
- the strip 8 On leaving the accumulator 12, the strip 8 enters an oxide breaker 13, of a type known in itself, to crack and weaken the layer of scale which may have formed on the surface of the strip 8 despite the precautions taken. Then she goes into a shot blasting machine 14, where the scale is disintegrated by the projection of metal balls or ceramic on the surface of the strip 8. The latter is then preferably freed of its scale residues, or even beads which may have become embedded in it, by a brushing installation 15 to which can, for example, be added or substituted installation where a pressurized fluid is sprayed onto the strip.
- a brushing installation 15 to which can, for example, be added or substituted installation where a pressurized fluid is sprayed onto the strip.
- cleaning of the surface of the strip 8 is completed by the passage of the strip 8 inside one or more several tanks 16, 17 containing pickling baths (chemical and / or electrolytic), whose natures are conditioned in a known manner by the composition of the band 8, the desirable length of stay of strip 8 in baths 16, 17, type of surface finish desired for band 8 etc. If necessary, precede the first pickling tank 16 with a strip cooling installation 8. Preferably, these tanks are equipped with means allowing the strip 8 to penetrate there or not, according to the precise needs of the moment. A rinsing installation 18 and a drying installation 19 (and / or any other adapted installation) then remove from the surface of the strip 8 the remaining traces of the pickling baths.
- pickling baths chemical and / or electrolytic
- the strip 8 then passes into a second strip accumulator 20, which separates the “descaling” part of the line from its “cold rolling” part and makes their independent operations.
- the “cold rolling” part of the installation according to the invention comprises a single rolling mill of the conventional type with three stands ensuring the its almost definitive thickness of the strip 8, it being understood that this configuration is not nothing limiting. You can use a smaller or larger number of cages, or a rolling mill Sendzimir type.
- the rolling mill 21 is preceded by a shear 22 by which, at when changing the rolls of the rolling mill 21, the strip 8 is cut so as to interrupt the supply to the rolling mill 21. During this interruption of the operation of the rolling mill 21, it is not necessary to stop the upstream part of the installation since the strip 8 can continue to fill the first and second accumulators 12, 20.
- the rolling mill 21 is, in known manner, followed by a degreasing installation 23 and an installation for drying 24.
- the “cold rolling” section of the installation includes a second cold rolling mill if the strip enters this section at a relatively high temperature, especially if no installation is used pickling.
- the strip 8 then passes into a third accumulator 25 which separates the part “Cold rolling” of the “annealing-pickling” part of the line and makes their independent operations.
- the “annealing-pickling” part of the line comprises first an annealing oven 26 of conventional type, which is followed by a cooler 27. then the strip 8 penetrates into pickling tanks 28, 29 of chemical and / or electrolytic type, containing baths of compositions known in themselves. Preferably, these tanks 28, 29 are each equipped with means making it possible for the choice of operators, band 8 transits or avoids them.
- the single figure shows two baths pickling, but of course, as needed, they can be more or less numerous.
- the annealing-pickling treatments carried out at this location of the installation according to the invention do not differ particularly from the treatments which it is usual to carry out on conventional cold rolled strip manufacturing facilities.
- Band 8 then passes in a rinsing installation 30 and a drying installation 31.
- the annealing furnace 26 may comprise at its inlet a device for heating by induction. This provides significant instantaneous heating power which allows quickly bring the strip 8 to its nominal treatment temperature. That power is, moreover, easily modular, which gives the possibility of easily varying the residence time of the strip 8 in the annealing furnace 26 necessary for the execution of the desired metallurgical treatment, by varying the amount of energy supplied to the strip 8 in the induction device. We thus give our an additional degree of freedom in the management of the entire line.
- the “annealing-pickling” part that we have just described can be replaced by a bright annealing system, depending on the type of product you want manufacture.
- the strip 8 then passes through a fourth accumulator 32 which separates the part “Annealing-pickling” of the hardener rolling mill 33 and makes their operations independent.
- the hardener rolling mill (or “skin-pass”) 33 which can be supplemented by a leveler under tension 34, conventionally has the function of giving the strip its structure metallurgical and its final surface condition, which goes hand in hand with a very slight reduction of its thickness. Again, that of the installation according to the invention is not distinguished not those which it is conventional to use on the cold rolling lines of the prior art.
- the strip 8 then passes into a fifth accumulator 35 which separates the rolling mill hardener 33 of the “winding” part of the line, and makes it possible to adjust the speed and web winding tension 8 regardless of the web running speed in the hardener rolling mill 33.
- the strip preferentially passes through a edge shears 36, which cuts the edges of the strip not having a quality metallurgical sufficient to be exploited. It is then packaged on a winder 37, preceded by a shear 38 which cuts the strip 8 when the winder 37 is on the not to be fully filled. Only one winder 37 has been shown, but it is of course there must be at least two, so that you can orient the strip towards the winder is empty as soon as the other is filled, as is the case on the rolling lines traditional cold.
- This second cold rolling mill can itself be followed by another section of annealing-pickling.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Finishing Walls (AREA)
- Heat Treatment Of Steel (AREA)
Description
- coulée continue de brames d'une épaisseur de 15 à 25 cm environ à partir d'acier liquide dans une lingotière sans fond à parois fixes refroidies ;
- laminage à chaud sous forme d'une bande de quelques mm d'épaisseur ;
- éventuellement recuit initial de la bande ;
- décalaminage et nettoyage de la surface de la bande, par des moyens mécaniques, chimiques ou électrochimiques, ou une succession de tels moyens ;
- laminage à froid de la bande à son épaisseur quasi définitive, effectué généralement dans un laminoir comportant plusieurs cages ;
- recuit ;
- décapage ;
- passage dans un laminoir écrouisseur (appelé aussi «skin-pass») avant conditionnement définitif en bobines.
- la coulée continue directement à partir de métal liquide d'une bande d'acier inoxydable ;
- un décalaminage de ladite bande ;
- un laminage à froid de ladite bande ;
- une opération de recuit-décapage ou de recuit brillant de ladite bande;
- une opération de mise en forme finale de ladite bande, telle qu'un passage dans un laminoir écrouisseur ;
- un bobinage de ladite bande.
- une installation de coulée continue de bandes minces directement à partir de métal liquide ;
- une installation de décalaminage ;
- une installation de laminage à froid ;
- une installation de recuit-décapage ou de recuit brillant ;
- une installation de mise en forme finale de la bande telle qu'un laminoir écrouisseur;
- une installation de bobinage de la bande ;
- un brise-oxydes, dans lequel la bande laminée à chaud est soumise à des flexions et à un léger allongement, qui ont pour effet de fracturer la couche de calamine ;
- un ou des outils de décalaminage mécanique pouvant comprendre, seuls ou en cascade, une installation de grenaillage, une installation de brossage, une installation de projection d'un fluide sous pression, la fonction de ces deux derniers outils étant essentiellement de parachever l'enlèvement d'une part des résidus de calamine arrachés par les grenailles et d'autre part des grenailles qui subsisteraient à la surface de la bande ;
- une installation de décapage chimique et/ou électrolytique pouvant comporter un ou plusieurs bains semblables ou différents, dont la composition est à choisir en fonction de paramètres habituels tels que la nuance de l'acier (qui détermine en partie la composition et le comportement de la calamine), le type de fini de surface désiré pour la bande, la durée souhaitée pour le traitement ; si la température de la bande à sa sortie du décalaminage mécanique est relativement élevée (ce peut être le cas notamment si elle a subi un laminage à chaud suivi d'un recuit intermédiaire), il peut être nécessaire de refroidir la bande avant son entrée dans les bains de décapage.
- se passer du brise-oxydes ou limiter la sévérité de son action, ce qui serait favorable à la réduction du risque d'apparition de fissures superficielles sur les bandes les plus fragiles ;
- diminuer l'intensité du grenaillage ou le supprimer totalement, et obtenir ainsi une surface de bande moins rugueuse et moins écrouie ;
- diminuer le nombre d'outils de décalaminage mécanique et/où le nombre de bains de décapage.
- la vitesse de coulée de la bande 8 dans la machine de coulée continue 1 et son épaisseur à la sortie de ladite machine 1 ;
- la répartition de la réduction d'épaisseur de la bande 8 entre l'étape de laminage à chaud dans le laminoir à chaud 10 (s'il y en a un sur l'installation) et la ou les étapes de laminage à froid dans le laminoir 21 ;
- les longueurs de bande 8 présentes dans les divers accumulateurs 12, 20, 25, 32, 35 ; ces accumulateurs (il peut y en avoir davantage ou moins que ce qui a été donné en exemple) confèrent une souplesse de fonctionnement adéquate à l'installation; ils permettent d'éviter, par exemple, que la bande 8 ne séjourne pas assez ou trop longtemps dans les bacs de décapage 16, 17, 28, 29, ce qui entraínerait des décapages insuffisants ou, au contraire, des surdécapages qui consommeraient inutilement du métal.
Claims (19)
- Procédé de fabrication de bandes minces en acier inoxydable selon lequel on réalise successivement et de manière continue sur une ligne de traitement unique :la coulée continue directement à partir de métal liquide d'une bande d'acier inoxydable ;un décalaminage de ladite bande ;un laminage à froid de ladite bande ;une opération de recuit et de décapage ou de recuit brillant de ladite bande ;une opération de mise en forme finale de ladite bande, telle qu'un passage dans un laminoir écrouisseur ;un bobinage de ladite bande.
- Procédé selon la revendication 1, caractérisé en ce que la coulée continue de ladite bande est effectuée par coulée continue entre deux cylindres horizontaux refroidis intérieurement et tournant en ses contraires.
- Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on réalise un laminage à chaud de ladite bande après sa coulée continue.
- Procédé selon l'une des revendications 1 à 3, caractérisé en ce qu'on réalise un recuit de ladite bande après sa coulée ou après son laminage à chaud.
- Procédé selon l'une des revendications 1 à 4, caractérisé en ce qu'on effectue le décalaminage de ladite bande par grenaillage et/ou brossage et/ou projection d'un fluide.
- Procédé selon la revendication 5, caractérisé en ce qu'on fait précéder le décalaminage par un passage de la bande dans un brise-oxydes.
- Procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'il comporte une deuxième étape de laminage à froid de ladite bande, éventuellement suivie par une étape de recuit et de décapage.
- Procédé selon l'une des revendications 1 à 7, caractérisé en ce qu'on gère le fonctionnement de ladite ligne de traitement en fonction de la durée désirée pour l'opération de recuit de ladite bande.
- Installation pour la production de bandes (8) d'acier inoxydable laminées à froid, comportant successivement :toutes ces installations étant disposées sur une même ligne continue, et au moins certaines d'entre elles étant séparées par un accumulateur de bande (12, 20, 25, 32, 35).une installation de coulée continue de bandes minces (8) directement à partir de métal liquide ;une installation de décalaminage ;une installation de laminage à froid (21) ;une installation de recuit-décapage (26, 27, 28, 29, 30, 31) ou de recuit brillant ;une installation de mise en forme finale de la bande (8) telle qu'un laminoir écrouisseur (39) ;une installation (37) de bobinage de la bande (8) ;
- Installation selon la revendication 9, caractérisée en ce que ladite installation de coulée continue est une installation (1) de coulée entre deux cylindres (6, 6') horizontaux refroidis intérieurement et mis en rotation en sens contraires.
- Installation selon la revendication 9 ou 10, caractérisée en ce qu'elle comporte un laminoir à chaud (10) après l'installation de coulée continue.
- Installation selon l'une des revendications 9 à 11, caractérisée en ce qu'elle comporte un four de recuit (11) après l'installation de coulée ou le laminoir à chaud (10).
- Installation selon l'une des revendications 9 à 12, caractérisée en ce que l'installation de décalaminage comporte une installation de grenaillage (14) et/ou une installation de brossage (15) et/ou une installation de projection d'un fluide sur la surface de la bande (8).
- Installation selon la revendication 13, caractérisée en ce que l'installation de décalaminage est précédée par un brise-oxydes (13).
- Installation selon l'une des revendications 9 à 14, caractérisée en ce que l'installation de décalaminage est suivie par une installation de décapage (16, 17, 18, 19) de la bande (8).
- Installation selon l'une des revendications 9 à 15, caractérisée en ce que le four de recuit (26) comporte à son entrée un dispositif de chauffage de la bande (8) par induction.
- Installation selon l'une des revendications 9 à 16, caractérisée en ce qu'elle comporte une deuxième installation de laminage à froid de la bande (8), éventuellement suivie par une deuxième installation de recuit-décapage.
- Installation selon l'une des revendications 9 à 17, caractérisée en ce que le laminoir écrouisseur (33) est suivi par une planeuse sous traction (34).
- Installation selon l'une des revendications 9 à 18, caractérisée en ce qu'elle comporte une deuxième installation de coulée continue et une installation de raboutage permettant de raccorder le début de la bande coulée par l'une des installations de coulée continue à la fin de la bande coulée par l'autre installation de coulée continue.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9802264 | 1998-02-25 | ||
| FR9802264A FR2775205B1 (fr) | 1998-02-25 | 1998-02-25 | Installation de fabrication de bandes d'acier inoxydable laminees a froid |
| PCT/FR1999/000388 WO1999043451A1 (fr) | 1998-02-25 | 1999-02-22 | Installation de fabrication de bandes d'acier inoxydable laminees a froid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1058588A1 EP1058588A1 (fr) | 2000-12-13 |
| EP1058588B1 true EP1058588B1 (fr) | 2002-09-18 |
Family
ID=9523345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99904921A Expired - Lifetime EP1058588B1 (fr) | 1998-02-25 | 1999-02-22 | Installation de fabrication de bandes d'acier inoxydable laminees a froid |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US6478899B1 (fr) |
| EP (1) | EP1058588B1 (fr) |
| JP (1) | JP2002504434A (fr) |
| KR (1) | KR20010041309A (fr) |
| CN (1) | CN1291922A (fr) |
| AT (1) | ATE224246T1 (fr) |
| AU (1) | AU2525899A (fr) |
| BR (1) | BR9908239A (fr) |
| CA (1) | CA2320942A1 (fr) |
| DE (1) | DE69903001D1 (fr) |
| FR (1) | FR2775205B1 (fr) |
| ID (1) | ID28239A (fr) |
| TW (1) | TW431916B (fr) |
| WO (1) | WO1999043451A1 (fr) |
| ZA (1) | ZA991471B (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052779A1 (de) | 2009-11-11 | 2011-05-12 | Sms Siemag Ag | Verfahren und Vorrichtung zum Walzen und Glühen von Edelstahlband |
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| SI2067541T1 (sl) | 2007-12-05 | 2012-09-28 | Yieh United Steel Copr | Postopek za neprekinjeno proizvodnjo hladno valjanjega jekla |
| KR100983762B1 (ko) * | 2008-01-11 | 2010-09-24 | 이에 유나이티드 스틸 코포레이션 | 냉간 압연강의 연속 제조방법 |
| KR101053414B1 (ko) * | 2008-07-04 | 2011-08-01 | 주식회사 포스코 | 열연강대의 스케일 제거방법 및 제거설비 |
| TW201006934A (en) * | 2008-08-14 | 2010-02-16 | Yieh United Steel Corp | Method for manufacturing stainless steel ultra thin white coil |
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| DE102009018683A1 (de) * | 2009-04-23 | 2010-10-28 | Sms Siemag Ag | Verfahren und Vorrichtung zum Stranggießen einer Bramme |
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| EP2719800B1 (fr) * | 2011-06-09 | 2018-03-21 | Tokyo Stainless Grinding Co., Ltd. | Procédé de production d'acier |
| RU2499640C1 (ru) * | 2012-06-14 | 2013-11-27 | Открытое акционерное общество "Северсталь" (ОАО "Северсталь") | Способ производства холоднокатаного проката для упаковочной ленты |
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| AT516956B1 (de) * | 2015-06-29 | 2016-10-15 | Andritz Ag Maschf | Vorrichtung und verfahren zur herstellung eines verzinkten stahlbandes |
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| FI128282B (en) * | 2019-01-28 | 2020-02-28 | Outokumpu Oy | Method for manufacturing of stainless steel strips |
| CN111283438A (zh) * | 2019-12-30 | 2020-06-16 | 无锡市巨燊科技有限公司 | 一种利用碳钢或不锈钢制备槽道的冷轧成形设备与方法 |
| RU2757640C1 (ru) * | 2020-10-28 | 2021-10-19 | Акционерное общество "Металлургический завод "Электросталь" | Способ изготовления холоднокатаной ленты из прецизионного сплава 14Х6Н4ГДМТ толщиной 0,1-0,5 мм |
| CN114210728B (zh) * | 2022-02-21 | 2022-05-17 | 山西太钢不锈钢精密带钢有限公司 | 一种背光板超平超薄精密带钢消除表面橘皮印的控制方法 |
| CN115044912B (zh) * | 2022-05-17 | 2024-07-05 | 天津太钢天管不锈钢有限公司 | 一种高粗糙度高强度建筑用不锈钢的制造方法 |
| CN115780541A (zh) * | 2022-11-17 | 2023-03-14 | 广西北港新材料有限公司 | 热轧不锈带钢预处理机组与热轧不锈带钢预处理方法 |
| CN117620625A (zh) * | 2024-01-08 | 2024-03-01 | 武汉乾冶工程技术有限公司 | 一种不锈钢带钢全流程连续生产工艺及生产线 |
| DE102024126049A1 (de) * | 2024-09-11 | 2026-03-12 | Sms Group Gmbh | Vorrichtung zur Behandlung eines metallischen Bands, Oberflächenbehandlungsvorrichtung, Kühleinrichtung, Anordnung aus einer Kühleinrichtung und einer Oberflächenbehandlungsvorrichtung, Produktionslinie, Verfahren zum kontinuierlichen Behandeln eines metallischen Bands, Verwendung einer Oberflächenbehandlungsvorrichtung und Verwendung einer Kühleinrichtung |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5680358A (en) * | 1979-12-03 | 1981-07-01 | Hitachi Ltd | Method and apparatus for continuous production of sheet |
| JPS56122611A (en) * | 1980-03-03 | 1981-09-26 | Kawasaki Steel Corp | Method and apparatus for manufacture cold rolled sheet product |
| NL8702050A (nl) * | 1987-09-01 | 1989-04-03 | Hoogovens Groep Bv | Werkwijze en inrichting voor de vervaardiging van bandvormig vervormingsstaal met goede mechanische en oppervlakte-eigenschappen. |
| US5286315A (en) * | 1989-03-30 | 1994-02-15 | Nippon Steel Corporation | Process for preparing rollable metal sheet from quenched solidified thin cast sheet as starting material |
| JPH0757891B2 (ja) * | 1989-08-17 | 1995-06-21 | 新日本製鐵株式会社 | 表面性状の優れたCr系ステンレス鋼板BA製品の製造方法 |
| JPH03254336A (ja) * | 1990-02-28 | 1991-11-13 | Nisshin Steel Co Ltd | 表面性状が良好なオーステナイト系ステンレス薄鋼帯の製造方法 |
| JP2630530B2 (ja) * | 1991-11-15 | 1997-07-16 | 株式会社山喜 | オーステナイト系ステンレス線材の処理方法 |
| TW296988B (fr) * | 1993-09-17 | 1997-02-01 | Hitachi Ltd | |
| DE4423664A1 (de) * | 1994-07-07 | 1996-05-15 | Bwg Bergwerk Walzwerk | Verfahren zum Herstellen von kaltgewalzten Stahlbändern aus nichtrostendem Stahl und Metallbändern, insbesondere aus Titanlegierungen |
| FI954819A7 (fi) * | 1994-10-14 | 1996-04-15 | Mannesmann Ag | Prosessi ja väline korkealuokkaisen kylmänä valssatun vanneteräksen valmistamiseksi kuumavalssatusta karkeasta vanneteräksestä |
| JPH093543A (ja) * | 1995-06-26 | 1997-01-07 | Sumitomo Metal Ind Ltd | オーステナイト系ステンレス熱延鋼板および冷延鋼板の製造方法 |
| DE19532278B4 (de) * | 1995-09-01 | 2006-07-27 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Verfahren zur Herstellung eines kaltgewalzten Bandes in einem Durchlauf |
-
1998
- 1998-02-25 FR FR9802264A patent/FR2775205B1/fr not_active Expired - Fee Related
-
1999
- 1999-02-22 DE DE69903001T patent/DE69903001D1/de not_active Expired - Lifetime
- 1999-02-22 AT AT99904921T patent/ATE224246T1/de not_active IP Right Cessation
- 1999-02-22 WO PCT/FR1999/000388 patent/WO1999043451A1/fr not_active Ceased
- 1999-02-22 ID IDW20001622A patent/ID28239A/id unknown
- 1999-02-22 AU AU25258/99A patent/AU2525899A/en not_active Abandoned
- 1999-02-22 US US09/623,015 patent/US6478899B1/en not_active Expired - Fee Related
- 1999-02-22 CA CA002320942A patent/CA2320942A1/fr not_active Abandoned
- 1999-02-22 CN CN99803325A patent/CN1291922A/zh active Pending
- 1999-02-22 BR BR9908239-0A patent/BR9908239A/pt unknown
- 1999-02-22 KR KR1020007009411A patent/KR20010041309A/ko not_active Withdrawn
- 1999-02-22 EP EP99904921A patent/EP1058588B1/fr not_active Expired - Lifetime
- 1999-02-22 JP JP2000533239A patent/JP2002504434A/ja active Pending
- 1999-02-24 ZA ZA9901471A patent/ZA991471B/xx unknown
- 1999-05-03 TW TW088102717A patent/TW431916B/zh not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052779A1 (de) | 2009-11-11 | 2011-05-12 | Sms Siemag Ag | Verfahren und Vorrichtung zum Walzen und Glühen von Edelstahlband |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9908239A (pt) | 2000-10-31 |
| FR2775205A1 (fr) | 1999-08-27 |
| DE69903001D1 (de) | 2002-10-24 |
| CA2320942A1 (fr) | 1999-09-02 |
| FR2775205B1 (fr) | 2000-03-24 |
| ATE224246T1 (de) | 2002-10-15 |
| ID28239A (id) | 2001-05-10 |
| TW431916B (en) | 2001-05-01 |
| JP2002504434A (ja) | 2002-02-12 |
| ZA991471B (en) | 1999-08-24 |
| EP1058588A1 (fr) | 2000-12-13 |
| CN1291922A (zh) | 2001-04-18 |
| AU2525899A (en) | 1999-09-15 |
| WO1999043451A1 (fr) | 1999-09-02 |
| US6478899B1 (en) | 2002-11-12 |
| KR20010041309A (ko) | 2001-05-15 |
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