EP0787808B1 - Verfahren und Vorrichtung zum inline-Beizen von Warmbändern hinter Dünnbrammenerzeugungsanlagen - Google Patents
Verfahren und Vorrichtung zum inline-Beizen von Warmbändern hinter Dünnbrammenerzeugungsanlagen Download PDFInfo
- Publication number
- EP0787808B1 EP0787808B1 EP97250023A EP97250023A EP0787808B1 EP 0787808 B1 EP0787808 B1 EP 0787808B1 EP 97250023 A EP97250023 A EP 97250023A EP 97250023 A EP97250023 A EP 97250023A EP 0787808 B1 EP0787808 B1 EP 0787808B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- pickling
- plant
- rolled
- thin slab
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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
- B21B1/46—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0021—Cutting or shearing the product in the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/08—Braking or tensioning arrangements
-
- 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0278—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
Definitions
- the invention relates to a working method and a system for pickling in one Thin slab plant produced and subsequently hot rolled strip, especially low-carbon steel strip, in a directly to the Rolling process subsequent continuous process,
- a working process for pickling a and produced in a thin slab plant Subsequently hot-rolled strip is useful if there are large batch sizes can be processed, especially low-carbon steels are suitable for Execution of the procedure.
- the working method is characterized by the im Claim 1 specified process steps.
- these successive Process steps can be pickled a low-carbon steel strip inline, the through the thin slab caster and the subsequent hot strip mill given speeds are appropriate with appropriate coordination that To master temperature control in preparation for the pickling process as well the pickling process for the common rolling stock thicknesses and widths.
- the procedure can be perform inline, i.e. that following an endless rolling of the An endless pickling process is carried out. By cooling of the belt in several cooling sections and intervening recovery martensite formation in the band is guaranteed at the specified process stages avoid.
- the abrupt cooling of the strip from 480 ° C to 95 ° C also closes the danger of martensite formation because the transformation at 480 ° C is finished, but this cooling is helpful to form a readily detachable scale.
- the tape prepared in this way which is less than 100 ° C. cold, is replaced by a number of Pickling tank led, the number of which depends on the width and thickness of each tape to be treated, possibly with individual containers over Corresponding pump systems are drained or filled with acid.
- the working method is thereby designed that for inserting the tape into the treatment system previously threaded pilot tape is connected at the end to the tape beginning that the Pilot belt after passing through the treatment plant on one of two Coil mandrels wound up and off the belt after the winding process has ended is separated and that the tape separated from the pilot tape on the second reel dome is wound up.
- the stain threading process is rarely required, for example only twice in the year. Then the pilot strip leads the hot strip beginning through the pickling line and becomes even wound on one dome of a reel. Once the hot strip is through the stain and the subsequent system parts is drawn, the connection point separated between pilot strip and hot strip and the hot strip on the second mandrel wrapped.
- the pilot band is used by the first cathedral removed and reused at the next start.
- a pickling line for performing the working method according to the invention is in Claim 6 claimed
- the inline arrangement of the plant components mentioned there includes the significant one
- the system can thus be very compact and operate functionally, so that large batch sizes of a certain material can be treated economically.
- the device is in the form of a circulation chain frame designed with which the necessary transport and pulling forces can be easily applied are.
- the Winding mandrels arranged on a carousel reel with reversing freedom and empty space are.
- the pilot strip is opened by the stain when threading the beginning of the hot strip the mandrel 1 of the turning reel is wound up, the reel is turned. Once the Hot strip begins, the connection point between the pilot strip and Hot strip separated and the hot strip is on the second dome of the Reversible reel coiled.
- Known turbolence pickling tanks are preferably used as pickling tanks in the pickling system provided, is injected into the treatment acid.
- the containers are traversed by the belt in a horizontal direction, they are over in no time Filling or emptying pump systems, also for adaptation the temperature of the acid in the pickling tanks for different pickling tasks is controllable.
- the pickling plant can be realized particularly advantageously if after a preferred feature of the invention, the process parts of the pickling plant in at least three Layers are arranged one above the other, in which the double deflected by 180 ° Belt is guided by this measure, the system builds very compact, at correspondingly large distance between the individual floors for example, 4 meters, there are only tensions in the elastic for the tape Area.
- the present invention solves the coupling of a thin slab caster, a hot strip mill and a pickle for the production of thin hot strip in a surprisingly simple way.
- the facility is special suitable for processing low-carbon steels (e.g. ST 37, ST 52 and ST10), which can be economically manufactured in large batch sizes.
- the attachment is compact and simple to build and is also inexpensive to manufacture because of the Inline process, essential plant parts are only required once. The handling The system is simple and safe, so that a good cost performance ratio too is expected.
- 1 is the last stand of a hot strip mill referred to, which, located immediately behind a thin slab caster, the Thin slab into a band with final dimensions in the range between 2.5 mm and Rolled out 1 mm.
- a driver 2 for the tape is following the Hot strip mill a cooling device 3 is provided, in which the strip of approx. Is mildly cooled to 850 ° C. to 680 ° C.
- a roller driver 4 On the outlet side of the cooling device 3, followed by a roller driver 4 a 38 m long compensation section is provided, the 5 is designated and in which the tape over the entire tape cross-section through the Compensation of outside and inside temperature receives a temperature of 680 ° C.
- a further driver 6 for the belt is followed by a further cooling section 7 for a mild one Cooling of the belt from 680 ° C to 480 ° C, with which the belt, supported by a another driver 8 is introduced into the second compensation section 9.
- the strip cross-section is equalized to a temperature of 480 ° C equalized before the tape, supported by another driver 10 in one Loop storage is routed to where it is known in a multiple way Redirection around roles that can be changed in their intervals.
- the stapling device 12 is provided, in which the Start of the tape with the end of a pilot tape fed at 13 Stitch can be connected.
- the stapler 12 is a pair of scissors 14 upstream, in which the beginning of the band can be straightened.
- the band will turn 180 ° again redirected in its direction of passage and arrives, driven by a Circulating chain frame, which is designated 21, in the pickling device, the total of 22 is designated.
- the pickling system is composed of a total of 5, each 18 m long pickling tanks, which are used as turbulence pickling with a horizontal pass for the Tape are formed.
- the pickling tanks are designated 23 a to 23 e.
- Pump systems shown are the containers optionally filled with acid or drainable.
- the pickling device is followed by the known rinsing of the belt in the Rinsing devices 24 with subsequent drying in the drying device 25 and if necessary, trimming the band edges in the trimming shear 26
- Pickling device is a second circulating chain frame 27 is arranged, in which the necessary Belt tension between this and the first circulating chain frame 21 can be applied.
- the System ends with a drum shear 28 and the reel 29, in which the finished tape or the pilot tape can be wound up.
- this is done Threading the tape into the stain with the help of a wound at 13, in the Plant extending pilot tape, which in the stapler 12 at the beginning of Band is connected.
- the pilot tape is attached together with the tape pulled through the entire plant, including the pickling device 22, and at the end the system wound on the first reel dome of the turning reel 29.
- Pilot tape cut off and passed to the second reel dome of the reversible reel 29.
- the pilot tape can be unwound and returned to the next threading process be while the hot strip in a known manner on the reel is coiled up.
- a pilot tape it is expedient to use a flexible one Metal fabric tape is used, which is not when moving through the 180 ° bypasses large forces required.
- the entire system is in the preferred version between the last scaffolding the hot strip mill and the turning reel are 178 m long.
- This compact Construction can be achieved by arranging the entire system on three floors, which are 4 m apart.
- the first cooling section with a length of 10 m allows cooling with the specified in claim 2 Speeds, the compensation section 5 with a length of 38 m leads to the specified Temperatures.
- the second cooling section with a length of 15 m is the second Equalization route followed, for which a length of 38 m is also provided.
- For the pickling tanks are each provided for 18 m, which proved to be sufficient in order to pickle even the thickest strip to be produced in the system.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Claims (12)
- Arbeitsverfahren zum Beizen eines in einer Dünnbrammenanlage erzeugten und im Anschluß daran warmgewalzten Bandes, insbesondere kohlenstoffarmen Stahlbandes, in einem unmittelbar an den Walzvorgang anschließenden kontinuierlichen Prozeß, der durch die Abfolge der folgenden Verfahrensschritte in einer Behandlungsanlage gekennzeichnet ist:a) mildes Kühlen des den Walzvorgang mit ≥ 880°C verlassenden Bandes in einer ersten Kühlstrecke auf 850° bis 680°C,b) Ausgleich von Rand- und Kerntemperaturen in einer ersten Erholstrecke auf eine gleichmäßige Querschnittstemperatur von ca. 680°C,c) mildes Kühlen des Bandes in einer unmittelbar folgenden zweiten Kühlstrecke von 680° bis auf 480°C,d) Ausgleich von Rand- und Kerntemperaturen in einer zweiten Erholstrecke auf eine gleichmäßige Querschnittstemperatur von ca. 480°C,e) schroffes Abkühlen des Bandes von 480°C auf ca. 95°C in einer dritten Kühlstrecke,f) Ausgleich von Rand- und Kerntemperaturen in einer dritten Erholstrecke auf eine gleichmäßige Querschnittstemperatur von ca. 100°C,g) Führen des Bandes durch eine der Banddicke und/oder der Bandlaufgeschwindigkeit angepaßten Anzahl von zu- und abschaltbaren chemischen Beizbehältem bei entsprechend angepaßten Beiztemperaturen undf) Spülen, Trocknen und Aufhaspeln des gebeizten Bandes.
- Arbeitsverfahren zum Beizen eines in einer Dünnbrammenanlage erzeugten und im Anschluß daran warmgewalzten Bandes nach Anspruch 1,
dadurch gekennzeichnet, daß bei im wesentlichen konstanter gewalzter Bandbreite von 1300 mm die Endwalzgeschwindigkeiten des Bandes und damit dessen Durchlaufgeschwindigkeiten durch die Behandlungsanlage auf die Enddicke des gewalzten Bandes abgestimmt ist, wobei gilt:Enddicke des Bandes 1,0 mm ≙ Endwalzgeschwindigkeit von 4,0 m/s.Enddicke des Bandes 1,5 mm ≙ Endwalzgeschwindigkeit von 2,7 m/sEnddicke des Bandes 2,0 mm ≙ Endwalzgeschwindigkeit von 2,0 m/sEnddicke des Bandes 2,5 mm ≙Endwalzgeschwindigkeit von 1,6 m/s - Arbeitsverfahren zum Beizen eines in einer Dünnbrammenanlage erzeugten und im Anschluß daran warmgewalzten Bandes nach Anspruch 1 und 2, dadurch gekennzeichnet, daß zum Einführen des Bandes in die Behandlungsanlage ein zuvor eingefädeltes Pilotband endseitig mit dem Bandanfang verbunden wird, daß das Pilotband nach dem Durchlauf durch die Behandlungsanlage auf einem von zwei Haspeldornen aufgewickelt und nach Beendigung des Wickelvorganges vom Band getrennt wird, und daß das vom Pilotband getrennte Band auf dem zweiten Haspeldorn aufgewickelt wird.
- Arbeitsverfahren zum Beizen eines in einer Dünnbrammenanlage erzeugten und im Anschluß daran warmgewalzten Bandes nach Anspruch 3, dadurch gekennzeichnet, daß das Pilotband wiederverwendbar ist.
- Arbeitsverfahren zum Beizen eines in einer Dünnbrammenanlage erzeugten und im Anschluß daran warmgewalzten Bandes nach Anspruch 1, dadurch gekennzeichnet, daß beim Zustellen von Anlagenteilen, wie Walzenwechsel, Austausch von Gießrohren oder zu Reparaturzwecken das angehaltene Band in der Behandlungsanlage verbleibt und als Pilotband für die nächste Beizkampagne verwendet wird.
- Beizanlage zur Durchführung des Arbeitsverfahrens nach den Ansprüchen 1 bis 5 , die aus der Hintereinanderanordnung folgender kontinuierlich betreibbarer Prozeßteile besteht:a) drei Kühleinrichtungen (3,7,18) mit jeweils anschließender Ausgleichsstrecke (5, 9, 30)b) eine Beizeinrichtung (22) mit mehreren zu- und abschaltbaren Beizbehältem (23a bis 23 e), die das Band (B) horizontal durchläuftc) Spül- (24) und Trockeneinrichtungen (25) für das gebeizte Band (B)d) eine Querteilschere (28) unde) mindestens zwei Aufwickeldorne (29) für das Fertigband, wobei zwischen den Prozeßteilen a) und b) ein Schlingenspeicher (11) und eine Hefteinrichtung (12) zum Zusammenfügen eines Pilotbandes mit dem zu beizenden Band (B) vorgesehen ist, das als Metallgewebeband mit guter Kurvenfähigkeit ausgebildet ist.
- Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach Anspruch 6,
dadurch gekennzeichnet, daß jeweils vor und hinter der Beizeinrichtung (22) eine Einrichtung (21,27) zum Aufbringen von Zugspannung auf das Band (8) vorgesehen ist, die aus Umlaufkettengerüsten besteht. - Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach einem der Ansprüche 6 und 7,
dadurch gekennzeichnet, daß hinter der Beizeinrichtung (22) eine Besäumeinrichtung (26) für die Längskanten des gebeizten Bandes (B) vorgesehen ist. - Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach Anspruch 6,
dadurch gekennzeichnet, daß die Aufwickeldorne e) auf einem Karusselhaspel (29) mit Wendedom und Leerplatz für das Pilotband angeordnet sind. - Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach Anspruch 6,
dadurch gekennzeichnet, daß als Beizbehälter (23a bis 23e) ansich bekannte Turbulenz-Beizbehälter vorgesehen sind. - Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach Anspruch 8,
dadurch gekennzeichnet, daß innerhalb der Anlage verschiedene Treiber (2, 4, 6, 10, 15, 17, 19,) für das Band (B) vorgesehen sind. - Beizanlage für ein in einer Dünnbrammenanlage erzeugtes und im Anschluß daran warmgewalztes Band nach Anspruch 6,
dadurch gekennzeichnet, daß die Prozeßteile der Anlage in mindestens drei Etagen übereinander angeordnet sind, in denen das zweifach um 180° umgelenkte Band (B) geführt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19606305 | 1996-02-08 | ||
| DE19606305A DE19606305C1 (de) | 1996-02-08 | 1996-02-08 | Verfahren und Vorrichtung zum inline-Beizen von Warmbändern hinter Dünnbrammenerzeugungsanlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0787808A1 EP0787808A1 (de) | 1997-08-06 |
| EP0787808B1 true EP0787808B1 (de) | 2001-11-07 |
Family
ID=7785919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97250023A Expired - Lifetime EP0787808B1 (de) | 1996-02-08 | 1997-02-04 | Verfahren und Vorrichtung zum inline-Beizen von Warmbändern hinter Dünnbrammenerzeugungsanlagen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5876522A (de) |
| EP (1) | EP0787808B1 (de) |
| DE (2) | DE19606305C1 (de) |
| ES (1) | ES2163094T3 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1295566B1 (it) * | 1997-06-05 | 1999-05-13 | Danieli Off Mecc | Procedimento di trattamento termico per laminati |
| AT407755B (de) | 1998-07-15 | 2001-06-25 | Andritz Patentverwaltung | Verfahren zum beizen von edelstahl |
| DE102004045296A1 (de) | 2004-09-16 | 2006-03-23 | Röhm GmbH & Co. KG | Verwendung von Polyalkyl (meth) acrylat-Perlpolymerisaten und Formmasse zur Herstellung von extrudierten Formteilen mit mattierter Oberfläche |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1093867A (fr) * | 1953-02-24 | 1955-05-10 | Wuppermann Gmbh Theodor | Procédé de fabrication à chaud de fer feuillard totalement ou en grande partie exempt de battitures et dispositif pour la mise en oeuvre de ce procédé |
| DE1123879B (de) * | 1960-01-05 | 1962-02-15 | Thyssen Huette Ag | Verfahren und Anlage zur kontinuierlichen Entzunderung von Breitband in einer Durchlaufbeizanlage |
| US3623532A (en) * | 1969-03-20 | 1971-11-30 | Southwire Co | Continuous pickling of cast rod |
| BE843167A (fr) * | 1975-06-24 | 1976-10-18 | Refroidissement et decapage d'un fil machine lamine en continu | |
| US4007750A (en) * | 1975-07-14 | 1977-02-15 | Armco Steel Corporation | Continuous sheet pickling apparatus |
| JPS5997705A (ja) * | 1982-11-26 | 1984-06-05 | Hitachi Ltd | 連続式圧延法 |
| 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. |
| NL8802892A (nl) * | 1988-11-24 | 1990-06-18 | Hoogovens Groep Bv | Werkwijze voor het vervaardigen van vervormingsstaal en band vervaardigd daarmee. |
| AT404907B (de) * | 1993-07-13 | 1999-03-25 | Andritz Patentverwaltung | Verfahren und anlage zum herstellen von edelstahlband |
| JPH08294707A (ja) * | 1995-04-21 | 1996-11-12 | Nippon Steel Corp | 熱延鋼帯の製造方法 |
-
1996
- 1996-02-08 DE DE19606305A patent/DE19606305C1/de not_active Expired - Fee Related
-
1997
- 1997-02-04 DE DE59705232T patent/DE59705232D1/de not_active Expired - Lifetime
- 1997-02-04 ES ES97250023T patent/ES2163094T3/es not_active Expired - Lifetime
- 1997-02-04 EP EP97250023A patent/EP0787808B1/de not_active Expired - Lifetime
- 1997-02-05 US US08/795,889 patent/US5876522A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0787808A1 (de) | 1997-08-06 |
| DE59705232D1 (de) | 2001-12-13 |
| US5876522A (en) | 1999-03-02 |
| DE19606305C1 (de) | 1997-10-02 |
| ES2163094T3 (es) | 2002-01-16 |
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