EP1469954B1 - Procede et dispositif de production de feuillard lamine a chaud a partir d'aciers austenitiques inoxydables - Google Patents
Procede et dispositif de production de feuillard lamine a chaud a partir d'aciers austenitiques inoxydables Download PDFInfo
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- EP1469954B1 EP1469954B1 EP03702404A EP03702404A EP1469954B1 EP 1469954 B1 EP1469954 B1 EP 1469954B1 EP 03702404 A EP03702404 A EP 03702404A EP 03702404 A EP03702404 A EP 03702404A EP 1469954 B1 EP1469954 B1 EP 1469954B1
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- rolling
- temperature
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- cast product
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- 238000000034 method Methods 0.000 title claims description 28
- 229910000831 Steel Inorganic materials 0.000 title claims description 12
- 239000010959 steel Substances 0.000 title claims description 12
- 238000009434 installation Methods 0.000 title 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title 1
- 238000005096 rolling process Methods 0.000 claims abstract description 106
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 230000007797 corrosion Effects 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910003470 tongbaite Inorganic materials 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005266 casting Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 230000000171 quenching effect Effects 0.000 claims description 7
- 238000001953 recrystallisation Methods 0.000 claims description 7
- 238000009749 continuous casting Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims 6
- 238000007669 thermal treatment Methods 0.000 claims 6
- 238000010494 dissociation reaction Methods 0.000 claims 3
- 230000005593 dissociations Effects 0.000 claims 3
- 230000002265 prevention Effects 0.000 claims 3
- 206010013457 Dissociation Diseases 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 208000018459 dissociative disease Diseases 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000001556 precipitation Methods 0.000 abstract description 3
- 239000011651 chromium Substances 0.000 description 22
- 239000000047 product Substances 0.000 description 13
- 229910052804 chromium Inorganic materials 0.000 description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 10
- 238000000137 annealing Methods 0.000 description 10
- 150000001247 metal acetylides Chemical class 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- -1 chromium carbides Chemical class 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- B21B1/26—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 hot-rolling, e.g. Steckel hot 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
- B21B1/466—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 non-continuous process, i.e. the cast being cut before rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- B21B45/004—Heating the product
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
Definitions
- the invention relates to a method for producing hot strip of austenitic stainless steels, wherein in a first step a cast product is subjected to a rolling operation in a rolling mill with a finishing train and in a second step a heat treatment to prevent susceptibility to corrosion, in particular with respect to an intercrystalline corrosion due to Chromium carbide precipitates, is performed.
- the invention relates to a plant for the production of hot strip of austenitic stainless steels, which are not susceptible to a selective, especially intergranular corrosion.
- austenitic stainless steels among which steel grades of at least 10.5% chromium and nickel are generally found, are particularly susceptible to intergranular corrosion due to chromium depletion of the near-comer regions of the structure during formation chromium-rich precipitates on the grain boundaries and the associated reduction in the corrosion resistance of these areas against microstructure areas with high content of dissolved chromium based. This happens in particular if they pass through critical Temperaur Schemee during cooling too slowly. Therefore, such austenitic Cr-Ni steels are adjusted in the solution-annealed and quenched state.
- solution annealing with subsequent quenching is a heat treatment in which at solution annealing temperatures between about 1,000 and 1,100 ° C, the chromium of the precipitated Cr carbides goes back into solution and is prevented by the subsequent quenching that form again chromium carbides by placing the C atoms in forced solution in the matrix being held.
- solution annealing followed by quenching is carried out in a separate from the rolling heat treatment process.
- the rolled products are transported to separate heat treatment plants and subjected there for the heat treatment of annealing and rapid cooling.
- solution heat treatment also improves the cold formability of austenitic Cr-Ni steels.
- EP 0 415 987 B2 discloses a method for the continuous production of strip steel or sheet steel from thin slabs of approximately 50 mm thickness produced by sheet casting with horizontal discharge direction with the rolling thin slab after solidification of the strand in the arcuate guide shaft at temperatures of more as 1,100 ° C, temperature drop of the slabs by radiation or Entzundem, inductive re-heating to a temperature of about 1,100 ° C and rolling the thin slab in at least one rolling mill.
- a temperature is set in the slabs, so that adjusts a temperature gradient at the deformation means of the rolling train in such a way that when tapping into the last roll stand, the temperature is within a sufficient deformation for a good order.
- the rolling stock temperature has dropped, for example, to 988 ° C and sufficient as a tapping temperature for the last rolling.
- the rolling stock leaves the last stand with a temperature of 953 ° C or less and is then separated at further lowered temperature in desired lengths and stacked or reeled.
- the outlet temperature from the roller hearth furnace is about 1,100 ° C.
- the heat energy required for the rolling process is thus almost completely covered by the amount of heat contained in the cast strand.
- the heat losses are controlled by cooling in the rolling train and from the roller contact, so that sets a desired final rolling temperature, for example, 880 ° C. This is followed by a slow cooling in the cooling section and a subsequent coiling.
- Both known methods have in common that a slab temperature is set as the inlet temperature in the finishing stand, which is just sufficient to ensure rolling in the last frame of the finishing train.
- the invention has for its object to propose a method and a system with which austenitic stainless steels can be produced while saving energy and time.
- the heat treatment to prevent corrosion susceptibility is carried out directly from the rolling heat, ie immediately after the rolling process, taking advantage of the fact that the temperatures in the strip are so high that no Cr carbides have precipitated or that, starting from the rolling temperatures, only very small temperature differences have to be overcome in order to set temperatures for dissolution of the chromium.
- the rolled product is no longer solution heat treated in a separate heat treatment step, which includes annealing from room temperature to solution annealing temperature, but using the rolling heat and thus saving the high energy annealing process.
- the steels can therefore be produced without subsequent separately performed heat treatment, consisting of solution annealing and quenching treatment, while saving energy and time.
- this desired relatively high final rolling temperature at the end of the finishing train is achieved by setting a higher inlet temperature of the cast product in the finishing mill of the rolling mill, which is above 1,150 ° C., preferably above 1,200 ° C. Then, the temperature level of the rolling stock despite the temperature gradient during the rolling process is always above the temperature at which Cr carbides could excrete.
- the cast product is subjected to a multi-stage, in particular two-stage, heating, which comprises a preheating stage and an intensive heating stage.
- the final rolling temperature of the rolling stock is set at temperatures above 1000 ° C, preferably above 1050 ° C, ie at temperatures at which the carbide precipitating chromium of the chromium-containing stainless steels is in solution.
- the final rolling temperature should be at a level at which no precipitate Cr carbides, but in which the structure still recrystallized.
- the term final rolling temperature refers to the temperature of the rolling stock in the last or last stands of the finishing train.
- the rolling stock is quenched to temperatures below 600 ° C, preferably below 450 ° C, with a precipitation of particular Cr carbides is suppressed.
- a rolled, already heat treated product is available, compared to a product that is a separate one Solution heat treatment and a quenching process has the advantage of energy and time savings in its production.
- the temperature of the cast product is set to values between 1000 and 1150 ° C., wherein the temperature is raised to values of above 1200 ° C. only in the subsequent intensive heating zone.
- the pre-heat stage is preferably carried out in a gas- or oil-heated oven and the subsequent intensive heating stage in an induction oven or in an induction heating zone.
- the slab temperature is increased to temperatures between 1,000 and 1,150 ° C without exceeding the load capacity of the furnace elements.
- the casting product surface in particular the slab surface
- a Entzu minimums device is provided between the Vorümlab and the Intensivffymark.
- the inlet temperature is then set in the inductive intensive heating zone. It is also proposed, in addition or alone, to carry out a descaling even before the roller hearth of the preheating to protect the roles of the furnace from scale and thus the surfaces of the slabs against unwanted scale marks and to improve the heat transfer into the slab.
- the rolling stock with the defined final rolling temperature is passed through a - preferably inductive heating section adjoining the finishing line for further holding at temperatures at which accelerated recrystallization processes take place and only then is quenched.
- This heating section can be used when it is determined that the desired Endwalztemperatur despite high inlet temperatures could not be achieved, for example by an unwanted unfavorable rolling process.
- a plant according to the invention for carrying out the proposed method is characterized in that the temperature adjustment means for preheating of the cast product and a device for intensive heating for setting the inlet temperature above 1150 ° C, preferably (T a) of the cast product into the finishing train of the rolling mill above 1200 ° C to set a desired final rolling temperature (T we ) to make a heat treatment directly from the rolling heat can.
- the means for setting the desired high Endwalztemperatur part of the temperature-adjustment system ie by setting a high inlet temperature and a high final rolling temperature is set taking into account the temperature gradient during the rolling process.
- a temperature adjustment system is composed of the preheating device and a subsequent inductive intensive heating zone.
- a heating zone is arranged downstream of the rolling mill. This heating zone is preferably heated inductively; and temperatures above 1000 ° C can be set. It can also be a tunnel oven.
- Fig. 1 shows a plant for the production of sheets or strips of chromium and nickel alloyed steel grades, which are rolled to room temperature without cooling and heat treated, so that the final product is already solution-annealed and quenched available.
- Such a plant 1 comprises a continuous casting plant 2, which is shown here schematically with the aid of a ladle 3 for the molten steel, a distributor 4 and a mold 5.
- the near-final cast strand or cast product 6 is cut into slabs in front of the roller hearth furnace or preheating furnace 7 with the aid of scissors 8, and these then enter the furnace 7 in order to be heated to temperatures of between 1,000 and 1,150 ° C. to experience a temperature compensation.
- the heated slabs pass through a descaling device 9, in order then to run into an inductive intensive heating zone 10.
- the slabs are raised to temperatures in an interval of 1,000-1,300 ° C, preferably above 1,200 ° C, in a short, rapid heating process.
- the set in the intensive heating zone 10 Temperature must be sufficient to set the desired final rolling temperatures above 1000 ° C. Possibly. It may also be sufficient to heat to temperatures around 1000 ° C., provided that only a very small temperature loss occurs during the rolling process.
- the preheating furnace 7 and the intensive heating zone 10 form the temperature adjusting system 11.
- the means for performing the heat treatment are the preheating furnace 7 and the intensive heating zone 10 and the cooling section for rapid cooling.
- the hot slabs are again descaled (second descaling device 12) and introduced into the finishing train 13, which here consists of six stands 13a-f.
- the inlet temperatures are in the temperature range of 1,050-1,250 ° C, preferably at temperatures above 1,200 °. Temperatures of 1050 ° C are also adjustable, provided that the temperature loss in the rolling mill is low and the desired Endwalztemperaturen be achieved.
- an emergency shear 14 is provided for incidents.
- the temperatures of the slabs decrease by radiation and cooling, but do not sink to the end of the rolling train 13 to temperatures below 1000 to 1100 ° C, so that the chromium always remains in solution and no Cr carbides on the grain boundaries can excrete the structure and a complete recrystallization takes place.
- the rolling stock 15 enters the means for cooling 16 or in a cooling section, the cooling parameters are set so that the rolling stock is cooled rapidly to temperatures in an interval of 400-650 ° C, preferably below 600 ° C, to keep the dissolved Cr atoms in forced solution.
- the cooling section shown here is cooling bar 17 with water cooling, other types of cooling are also conceivable.
- the thus rolled and already heat-treated and thus corrosion-resistant tape is reeled in a coiler 18.
- Fig. 2 illustrates, by way of comparison, a prior art casting heat rolling apparatus in which the strip must be solution annealed in a separate process.
- the Fig. 1 corresponding system parts are provided with corresponding reference numerals.
- usual slab or strip temperatures which prevail or are set in the individual system parts are mentioned.
- the cast product 106 is cut and then fed into an equalizing furnace 107 to be subsequently rolled. The held in a separate part of the plant with annealing solution annealing with subsequent quenching process is not shown.
- the invention particularly relates to austenitic stainless steels, i. Steels with a mass fraction of at least 10.5% Cr and not more than 1.2% C
- the invention is particularly directed to stainless steels in which intercrystalline corrosion by Cr depletion upon precipitation of Cr carbides is to be prevented.
- With the aid of the proposed method it is achieved that stainless steels already present in the solution-annealed state and thus corrosion-resistant after passing through an in-line casting and rolling plant. This saves energy and time and therefore costs.
- the process chain for the production of stainless corrosion-resistant steels is shortened.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Claims (16)
- Procédé de fabrication de feuillard laminé à chaud à partir d'aciers austénitiques inoxydables, par lequel, dans une première étape, un produit de fonderie (6) est soumis à une opération de laminage dans un laminoir équipé d'un train finisseur et, dans une deuxième étape, un traitement thermique destiné à empêcher une incidence de corrosion, notamment au niveau d'une corrosion intercristalline due à des dégagements de carbure de chrome, est réalisé,
caractérisé en ce que,
pour régler la température de laminage finale (Twe), on règle une température d'entrée (Tein) du produit de fonderie dans le train finisseur du laminoir au dessus de 1.150 °C, de préférence au dessus de 1.200 °C, par un réchauffement sur plusieurs étages, notamment deux étages, qui comprend un étage de préchauffage et un étage de chauffage intensif, et qu'on effectue le traitement thermique directement à partir de la chaleur de laminage. - Procédé selon la revendication 1,
caractérisé en ce que
la température de laminage finale (Twe) du produit laminé (15) est réglée à des valeurs auxquelles il y a encore une recristallisation dynamique complète de l'acier et que le produit laminé (15), après la dernière passe dans le train finisseur, est trempé de la température de laminage finale (Twe) jusqu'à une température (Ta) de manière à stopper le dégagement de carbure de chrome. - Procédé selon la revendication 2,
caractérisé en ce que
la température de laminage finale (Twe) du produit laminé (15) est réglée à des températures supérieures à 1.000°, de préférence supérieures à 1.050 °C, et que le produit laminé est ensuite trempé jusqu'à des températures (Ta) inférieures à 600 °C, de préférence inférieures à 450 °C, pendant 20 s. - Procédé selon une des revendications 1 à 3,
caractérisé en ce que,
dans l'étage de préchauffage, la température du produit de fonderie est réglée à des valeurs allant de 1.000 à 1.150 °C et que, dans la zone de chauffage intensif consécutive, la température est augmentée jusqu'à des valeurs supérieures à 1.200 °C. - Procédé selon une des revendications 1 à 4,
caractérisé en ce que
l'étage de préchauffage est réalisé dans un four (7) chauffé au gaz ou au fuel (7) et l'étage de chauffage intensif consécutif dans une zone de chauffage par induction (10). - Procédé selon une des revendications 1 à 5,
caractérisé en ce que,
entre l'étage de préchauffage et l'étage de chauffage intensif, on procède à un décalaminage. - Procédé selon une des revendications 1 à 6,
caractérisé en ce que
un chauffage supplémentaire du produit laminé a lieu dans la dernière section du train finisseur (13), de préférence par induction, de sorte que, pendant l'opération de laminage, la température est maintenue dans la plage de recristallisation dynamique. - Procédé selon une des revendications 1 à 7,
caractérisé en ce que
le produit laminé ayant la température de laminage finale définie (Twe) est guidé dans une zone de chauffage se raccordant au laminoir pour continuer à le maintenir à des températures auxquelles a lieu la recristallisation complète du produit laminé et n'est trempé qu'ensuite. - Procédé selon une des revendications 1 à 8,
caractérisé en ce que
le traitement thermique destiné à empêcher l'incidence de corrosion est réalisé directement à partir de la chaleur de laminage sur un produit de fonderie (6) coulé approchant des dimensions finales et sortant de la chaleur de laminage. - Procédé selon une des revendications 1 à 8,
caractérisé en ce que
le traitement thermique destiné à empêcher l'incidence de corrosion est réalisé directement à partir de la chaleur de laminage sur un produit laminé coulé en continu et laminé sur un train de laminoir de feuillard large à chaud. - Installation (1) de fabrication de feuillard à chaud à partir d'aciers austénitiques inoxydables pour la réalisation du procédé selon une des revendications 1 à 10, par lequel, dans une première étape, un produit de fonderie (6) est soumis à une opération de laminage dans un laminoir équipé d'un train finisseur et, dans une deuxième étape, un traitement thermique destiné à empêcher une incidence de corrosion, notamment au niveau d'une corrosion intercristalline due à des dégagements de carbure de chrome, est réalisé, cette installation comprenant
une installation de coulée continue (2) pour la fabrication d'un produit de fonderie (6) ainsi qu'un laminoir (13) comportant un système de réglage de température placé en amont (11) et un dispositif de refroidissement (16) du produit laminé (15) placé en aval,
caractérisée en ce que
le système de réglage de température (11) comporte un dispositif de préchauffage (7) du produit de fonderie et un dispositif de chauffage intensif (10) pour le réglage de la température d'entrée (Tein) du produit de fonderie dans le train finisseur du laminoir au dessus de 1.150 °C, de préférence au dessus de 1.200 °C, pour le réglage d'une température de laminage finale (Twe) afin de procéder au traitement thermique directement à partir de la chaleur de laminage. - Installation selon la revendication 11,
caractérisée en ce que
le dispositif de refroidissement (16) du produit laminé comporte des moyens de trempe (16) du produit laminé jusqu'à des températures inférieures à 600 °C, de préférence inférieures à 450 °C, afin de stopper le dégagement de carbures de chrome lors du refroidissement. - Installation selon la revendication 12,
caractérisée en ce que
celle-ci présente, après le laminoir, une zone de chauffage servant à maintenir la température de laminage finale (Twθ) du produit laminé à des températures supérieures à 1.000 °C, de préférence supérieures à 1.050 °C. - Installation selon la revendication 12 ou 13,
caractérisée en ce que
celle-ci comporte des moyens permettant de continuer à chauffer le produit laminé pendant le laminage afin de régler une température de laminage finale (Twθ). - Installation selon une des revendications 11 à 14,
comportant une machine de coulée continue (2) pour la coulée de produits de fonderie approchant des dimensions finales (6),
un dispositif (8) de sectionnement du produit de fonderie (6) avant le système de réglage de température (11),
facultativement un premier dispositif de décalaminage (6) entre le dispositif de préchauffage (7) et le dispositif de chauffage intensif (10),
un deuxième dispositif de décalaminage (12) entre le système de réglage de température (11) et le train finisseur (13),
un dispositif de refroidissement rapide (16) se raccordant directement au train finisseur (13) ou à un four de maintien de température ainsi qu'un dispositif de bobinage (18) de bande ou qu'un dispositif de division et d'empilement du produit laminé traité thermiquement. - Installation selon la revendication 11,
comprenant
un système de réglage de température pour le chauffage de brames ou billettes coulées en continu, éventuellement une cage d'ébauche ainsi qu'un train de laminoir de feuillard large à chaud ou un train à fil s'y raccordant,
un dispositif de refroidissement rapide se raccordant directement au train de laminoir de feuillard large à chaud ou au train à fil ou à un four de maintien de température ainsi
qu'un dispositif de bobinage de bande ou qu'un dispositif de division et d'empilement ou d'enroulement du produit laminé traité thermiquement.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10203711A DE10203711A1 (de) | 2002-01-31 | 2002-01-31 | Verfahren und Anlage zur Herstellung von Warmband aus austenitischen nichtrostenden Stählen |
DE10203711 | 2002-01-31 | ||
PCT/EP2003/000119 WO2003064069A1 (fr) | 2002-01-31 | 2003-01-09 | Procede et dispositif de production de feuillard lamine a chaud a partir d'aciers austenitiques inoxydables |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1469954A1 EP1469954A1 (fr) | 2004-10-27 |
EP1469954B1 true EP1469954B1 (fr) | 2006-03-22 |
EP1469954B2 EP1469954B2 (fr) | 2009-03-11 |
Family
ID=27588155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03702404A Expired - Lifetime EP1469954B2 (fr) | 2002-01-31 | 2003-01-09 | Procede de production de feuillard lamine a chaud a partir d'aciers austenitiques inoxydables |
Country Status (14)
Country | Link |
---|---|
US (3) | US7854884B2 (fr) |
EP (1) | EP1469954B2 (fr) |
JP (1) | JP4860110B2 (fr) |
KR (1) | KR100971902B1 (fr) |
CN (1) | CN1292847C (fr) |
AT (1) | ATE320866T1 (fr) |
CA (1) | CA2471481C (fr) |
DE (2) | DE10203711A1 (fr) |
ES (1) | ES2261914T5 (fr) |
RU (1) | RU2302304C2 (fr) |
TW (1) | TWI283613B (fr) |
UA (1) | UA78281C2 (fr) |
WO (1) | WO2003064069A1 (fr) |
ZA (1) | ZA200404829B (fr) |
Cited By (4)
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EP2441540A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Procédé et installation de production à efficience énergétique d'une bande chaude en acier |
EP2441539A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Procédé à sortie d'énergie optimisée et installation de production d'une bande chaude en acier |
EP2441538A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Dispositif de coulée continue doté d'une réduction de barre dynamique |
WO2013110754A2 (fr) | 2012-01-25 | 2013-08-01 | Sms Siemag Ag | Procédé et installation pour produire une bande métallique |
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DE102004040927A1 (de) | 2004-08-24 | 2006-03-02 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen von Metallbändern |
UA89871C2 (ru) * | 2005-10-31 | 2010-03-10 | Смс Зимаг Акциенгезелльшафт | СПОСОБ И ЛИНИЯ Чистовой Прокатки ДЛЯ горячей прокатки исХОДНОГО МАТЕРИАЛА |
DE102006054932A1 (de) | 2005-12-16 | 2007-09-13 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen |
ES2361610T5 (es) * | 2005-12-22 | 2022-12-19 | Giovanni Arvedi | Procedimiento e instalación correspondiente para producir flejes de acero con solución de continuidad |
WO2007072516A1 (fr) * | 2005-12-22 | 2007-06-28 | Giovanni Arvedi | Procede et installation associee pour la production de bandes d'acier avec solution de continuite |
DE102007005015A1 (de) * | 2006-06-26 | 2008-01-03 | Sms Demag Ag | Verfahren und Anlage zur Herstellung von Warmband-Walzgut aus Siliziumstahl auf der Basis von Dünnbrammen |
CN100435987C (zh) * | 2006-11-10 | 2008-11-26 | 广州珠江钢铁有限责任公司 | 一种基于薄板坯连铸连轧流程采用Ti微合金化工艺生产700MPa级高强耐候钢的方法 |
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DE102008020412A1 (de) * | 2007-08-24 | 2009-02-26 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen |
DE102008003222A1 (de) * | 2007-09-13 | 2009-03-19 | Sms Demag Ag | Kompakte flexible CSP-Anlage für Endlos-, Semi-Endlos- und Batchbetrieb |
US20090129967A1 (en) * | 2007-11-09 | 2009-05-21 | General Electric Company | Forged austenitic stainless steel alloy components and method therefor |
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EP2524971A1 (fr) | 2011-05-20 | 2012-11-21 | Siemens VAI Metals Technologies GmbH | Procédé et dispositif de préparation de produits de laminage en acier avant le laminage à chaud |
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EP3974072B1 (fr) * | 2020-09-24 | 2023-07-19 | Primetals Technologies Austria GmbH | Installation combinée de coulée et de laminage et procédé de fonctionnement de l'installation combinée de coulée et de laminage |
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CN115141920B (zh) * | 2022-07-06 | 2023-07-21 | 大冶特殊钢有限公司 | 一种奥氏体不锈钢棒材的感应加热热处理方法 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3969161A (en) * | 1973-11-07 | 1976-07-13 | Nippon Kokan Kabushiki Kaisha | Cr-Ni system austenitic heat-resisting steel |
JPS5922773B2 (ja) * | 1979-09-06 | 1984-05-29 | 新日本製鐵株式会社 | オ−ステナイト系ステンレス線材の直接熱処理方法 |
US4360391A (en) * | 1981-05-22 | 1982-11-23 | Nisshin Steel Co., Ltd. | Process for production of coil of hot rolled strip of austenitic stainless steel |
US4503697A (en) * | 1983-01-25 | 1985-03-12 | Tippins Machinery Company, Inc. | Method for hot rolling slabs |
JPS6216892A (ja) * | 1985-07-15 | 1987-01-26 | Nippon Kokan Kk <Nkk> | 耐食性および溶接性に優れた高強度ステンレスクラツド鋼板の製造方法 |
JPS6224803A (ja) * | 1985-07-24 | 1987-02-02 | Kawasaki Steel Corp | オーステナイト系ステンレス鋼スラブの熱間圧延方法 |
DE3742539A1 (de) * | 1987-12-16 | 1989-07-06 | Thyssen Stahl Ag | Verfahren zur herstellung von plattiertem warmband und danach hergestelltes plattiertes warmband |
JPH0723510B2 (ja) * | 1988-01-30 | 1995-03-15 | 日新製鋼株式会社 | 含硼素オーステナイト系ステンレス鋼のホットコイルの製造方法 |
US5307864A (en) * | 1988-05-26 | 1994-05-03 | Mannesmann Aktiengesellschaft | Method and system for continuously producing flat steel product by the continuous casting method |
IT1244295B (it) * | 1990-07-09 | 1994-07-08 | Giovanni Arvedi | Processo ed impianto per l'ottenimento di nastri di acciaio avvolti, aventi caratteristiche di laminati a freddo ottenuti direttamente in linea di laminazione a caldo |
JPH05345913A (ja) * | 1992-06-15 | 1993-12-27 | Nippon Steel Corp | 鋭敏化現象の感受性の小さいオーステナイト系ステンレス鋼溶融アルミ系メッキ鋼板の製造法 |
TW245661B (fr) * | 1993-01-29 | 1995-04-21 | Hitachi Seisakusyo Kk | |
JPH06306464A (ja) * | 1993-04-28 | 1994-11-01 | Nippon Steel Corp | オーステナイト系ステンレス鋼熱延板の製造方法 |
DE4402402B4 (de) † | 1994-01-27 | 2004-05-13 | Sms Demag Ag | Verfahren zur Herstellung von warmgewalztem Stahlband aus stranggegossenem Vormaterial und Anlage zur Durchführung des Verfahrens |
JPH08176676A (ja) * | 1994-12-27 | 1996-07-09 | Nippon Steel Corp | 表面品質の優れたCr−Ni系ステンレス鋼薄板の製造方法 |
NL1000694C2 (nl) * | 1995-06-29 | 1997-01-08 | Hoogovens Staal Bv | Werkwijze en inrichting voor het vervaardigen van een vervormbare stalen band. |
EP0761326B1 (fr) * | 1995-09-06 | 2000-02-09 | Sms Schloemann-Siemag Aktiengesellschaft | Installation pour la production d'une bande mince laminée à chaud |
DE19613718C1 (de) * | 1996-03-28 | 1997-10-23 | Mannesmann Ag | Verfahren und Anlage zur Herstellung von warmgewalztem Stahlband |
CA2275873C (fr) * | 1996-12-19 | 2005-02-08 | Hoogovens Staal B.V. | Procede et dispositif de production d'un ruban ou d'une tole d'acier |
IT1290743B1 (it) * | 1997-04-10 | 1998-12-10 | Danieli Off Mecc | Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione |
GB9803409D0 (en) * | 1998-02-19 | 1998-04-15 | Kvaerner Metals Davy Ltd | Method and apparatus for the manufacture of light gauge steel strip |
US6259071B1 (en) * | 1999-10-01 | 2001-07-10 | Bricmont, Inc. | Single-point temperature control system for a multi-section line furnace |
JP3691996B2 (ja) * | 1999-11-16 | 2005-09-07 | 株式会社日立製作所 | ステッケル熱間圧延設備 |
JP2002173742A (ja) * | 2000-12-04 | 2002-06-21 | Nisshin Steel Co Ltd | 形状平坦度に優れた高強度オーステナイト系ステンレス鋼帯およびその製造方法 |
US20040003876A1 (en) * | 2002-07-04 | 2004-01-08 | Jfe Steel Corporation, A Corporation Of Japan | Structural Fe-Cr steel sheet, manufacturing method thereof, and structural shaped steel |
-
2002
- 2002-01-31 DE DE10203711A patent/DE10203711A1/de not_active Withdrawn
- 2002-11-27 TW TW091134441A patent/TWI283613B/zh not_active IP Right Cessation
-
2003
- 2003-01-09 RU RU2004126316/02A patent/RU2302304C2/ru not_active IP Right Cessation
- 2003-01-09 ES ES03702404T patent/ES2261914T5/es not_active Expired - Lifetime
- 2003-01-09 AT AT03702404T patent/ATE320866T1/de active
- 2003-01-09 US US10/503,100 patent/US7854884B2/en not_active Expired - Fee Related
- 2003-01-09 DE DE50302735T patent/DE50302735D1/de not_active Expired - Lifetime
- 2003-01-09 CN CNB038031299A patent/CN1292847C/zh not_active Expired - Fee Related
- 2003-01-09 EP EP03702404A patent/EP1469954B2/fr not_active Expired - Lifetime
- 2003-01-09 WO PCT/EP2003/000119 patent/WO2003064069A1/fr active IP Right Grant
- 2003-01-09 CA CA2471481A patent/CA2471481C/fr not_active Expired - Fee Related
- 2003-01-09 KR KR1020047011574A patent/KR100971902B1/ko not_active IP Right Cessation
- 2003-01-09 JP JP2003563748A patent/JP4860110B2/ja not_active Expired - Fee Related
- 2003-09-01 UA UA20040807174A patent/UA78281C2/uk unknown
-
2004
- 2004-06-18 ZA ZA2004/04829A patent/ZA200404829B/en unknown
-
2007
- 2007-07-27 US US11/881,688 patent/US20080000559A1/en not_active Abandoned
-
2009
- 2009-05-15 US US12/454,318 patent/US7922840B2/en not_active Expired - Fee Related
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2441540A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Procédé et installation de production à efficience énergétique d'une bande chaude en acier |
EP2441539A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Procédé à sortie d'énergie optimisée et installation de production d'une bande chaude en acier |
EP2441538A1 (fr) | 2010-10-12 | 2012-04-18 | Siemens VAI Metals Technologies GmbH | Dispositif de coulée continue doté d'une réduction de barre dynamique |
WO2012049105A1 (fr) | 2010-10-12 | 2012-04-19 | Siemens Vai Metals Technologies Gmbh | Dispositif de coulée continue à réduction dynamique de l'épaisseur de la barre |
WO2012049107A1 (fr) | 2010-10-12 | 2012-04-19 | Siemens Vai Metals Technologies Gmbh | Procédé à énergie et rendement optimisés et installation de production d'une bande d'acier laminée à chaud |
WO2012049135A1 (fr) | 2010-10-12 | 2012-04-19 | Siemens Vai Metals Technologies Gmbh | Procédé et installation de production à efficacité énergétique pour une bande d'acier laminée à chaud |
US9289807B2 (en) | 2010-10-12 | 2016-03-22 | Siemens Vai Metals Technologies Gmbh | Energy and yield-optimized method and plant for producing hot steel strip |
US9296027B2 (en) | 2010-10-12 | 2016-03-29 | Siemens Vai Metals Technologies Gmbh | Method and plant for the energy-efficient production of hot steel strip |
WO2013110754A2 (fr) | 2012-01-25 | 2013-08-01 | Sms Siemag Ag | Procédé et installation pour produire une bande métallique |
Also Published As
Publication number | Publication date |
---|---|
CN1625447A (zh) | 2005-06-08 |
US7854884B2 (en) | 2010-12-21 |
RU2004126316A (ru) | 2005-06-10 |
ES2261914T5 (es) | 2009-05-25 |
US20050072499A1 (en) | 2005-04-07 |
TWI283613B (en) | 2007-07-11 |
CN1292847C (zh) | 2007-01-03 |
EP1469954B2 (fr) | 2009-03-11 |
JP2005525239A (ja) | 2005-08-25 |
CA2471481A1 (fr) | 2003-08-07 |
CA2471481C (fr) | 2010-08-17 |
DE10203711A1 (de) | 2003-08-14 |
TW200302143A (en) | 2003-08-01 |
ATE320866T1 (de) | 2006-04-15 |
DE50302735D1 (de) | 2006-05-11 |
JP4860110B2 (ja) | 2012-01-25 |
US20090260728A1 (en) | 2009-10-22 |
EP1469954A1 (fr) | 2004-10-27 |
US20080000559A1 (en) | 2008-01-03 |
ZA200404829B (en) | 2005-02-23 |
KR20040073597A (ko) | 2004-08-19 |
KR100971902B1 (ko) | 2010-07-23 |
WO2003064069A1 (fr) | 2003-08-07 |
RU2302304C2 (ru) | 2007-07-10 |
ES2261914T3 (es) | 2006-11-16 |
US7922840B2 (en) | 2011-04-12 |
UA78281C2 (en) | 2007-03-15 |
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