EP1196256A1 - Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-strip - Google Patents
Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-stripInfo
- Publication number
- EP1196256A1 EP1196256A1 EP99917048A EP99917048A EP1196256A1 EP 1196256 A1 EP1196256 A1 EP 1196256A1 EP 99917048 A EP99917048 A EP 99917048A EP 99917048 A EP99917048 A EP 99917048A EP 1196256 A1 EP1196256 A1 EP 1196256A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- coiling
- fact
- uncoiling
- per
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B21B1/463—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
- B21B45/08—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 hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
-
- 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
-
- 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
- C21D9/68—Furnace coilers; Hot coilers
-
- 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
- C21D8/0215—Rapid solidification; Thin strip casting
-
- 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
- C21D8/0242—Flattening; Dressing; Flexing
-
- 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
- C21D8/0252—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment with application of tension
Definitions
- the present invention concerns an integrated continuous casting and in-line hot rolling process, as well as the relative plant, for the manufacture of ultrathin steel strip in gauges down to 0.6 mm with such characteristics that, for particular uses such as deep drawing for car body parts, the rolled product obtained may replace a cold rolled product.
- a process and plant are known for the manufacture of a pre-strip from 6 to 15 mm thick starting from a thin steel slab less than 60 mm thick.
- the process as per the present invention may be used for example downstream of this known process, expressly concerning a coiling and subsequent uncoiling system of the pre-strip 6- 15 mm thick, such as to make possible in the subsequent hot rolling step the manufacture of ultrathin gauge coils but with characteristics similar to those of a cold rolled product.
- One of the aims of the present invention is therefore to provide a process for the manufacture of ultrathin gauge hot rolled coils with cold rolled characteristics which do not present the above-mentioned problems of the prior art; this process includes the operating steps listed in claim 1, providing therefore a pre-strip coiling and uncoiling step between the roughing and finishing rolling, followed by plastic stretching of the material which facilitates the elimination of scale in a subsequent descaling step. Additional operating steps, preferred or optional, are listed in the claims dependent on this.
- the invention also includes a plant adapted to carry out the above- mentioned process.
- Figure la is a schematic, perspective view of a complete plant including the part of Fig. 1;
- Suitable means of control cause rotation of a deviating element 36, pivoting on the roller table 1 , until it is directed towards the opening 34 so as to invite the pre-strip 10 to enter the device 11 and, pushed by the wrapper rolls 33, 33', 33", to enter, inserting itself into pocket 21, and be held by the mandrel 20 which, rotating anti-clockwise, as shown in Figure lc, determines coiling on itself.
- an element 37 also having an end normally outside the opening, in a retracted position, can be caused to extend until it inserts this end into the opening so as to form the invitation to the tail of the pre-strip 10 to come out at the start of the uncoiling step, as shown in Fig. Id, with the mandrel 20 rotating clockwise.
- the deviating or coiling invitation element 36 as also the extendable and retractable element 37 for uncoiling the pre-strip 10, may of course be made in any other equivalent way suitable for this purpose.
- FIG. 21 is cooled by water flowing through the axial hole 24 and externally presents a layer of insulation 25 which, limiting the passage of heat between the shaft and the central body 22, reduces to a minimum cooling of the first section of the strip being coiled and corresponding to the uncoiling tail in subsequent rolling.
- Figures 4 and 5, above all the first of these, show a preferred embodiment, of interlocking fit, to join the central body 22 to the side segments 23 by means of shaped fasteners 26, 26', which engage thicknesses 27 inserted to allow assembly, without the need for tie-rods or bolts as required in traditional constructions. These were particularly unreliable because of possible breaking of the tie-rods every 2-3 months, considering that the necessary replacement of the broken tie- rods each time led to a downtime of about two days so as to allow cooling of the refractory material and its subsequent heating.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IT1999/000082 WO2000059650A1 (en) | 1999-04-07 | 1999-04-07 | Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-strip |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196256A1 true EP1196256A1 (en) | 2002-04-17 |
EP1196256B1 EP1196256B1 (en) | 2003-07-02 |
Family
ID=11333093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99917048A Expired - Lifetime EP1196256B1 (en) | 1999-04-07 | 1999-04-07 | Integrated continuous casting and in-line hot rolling process, as well as relative process with intermediate coiling and uncoiling of the pre-strip |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1196256B1 (en) |
AT (1) | ATE244078T1 (en) |
AU (1) | AU3532199A (en) |
DE (1) | DE69909332T2 (en) |
WO (1) | WO2000059650A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1657004A1 (en) | 2004-10-28 | 2006-05-17 | ARVEDI, Giovanni | Process and production line for manufacturing hot ultrathin steel strips with two casting lines for a single endless rolling line |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITMI20021996A1 (en) * | 2002-09-19 | 2004-03-20 | Giovanni Arvedi | PROCESS AND PRODUCTION LINE FOR THE MANUFACTURE OF ULTRA-THIN HOT TAPE BASED ON THE TECHNOLOGY OF THE THIN SHEET |
US7823431B2 (en) * | 2003-06-13 | 2010-11-02 | Siemens Industry, Inc. | Method and apparatus for temporarily interrupting the passage of long products between upstream and downstream paths in a rolling mill |
DE102004062636B4 (en) | 2004-12-21 | 2007-05-24 | Salzgitter Flachstahl Gmbh | Device for horizontal strip casting of steel |
WO2007072516A1 (en) * | 2005-12-22 | 2007-06-28 | Giovanni Arvedi | Process and related plant for producing steel strips with solution of continuity |
DE102006013607B4 (en) * | 2006-03-22 | 2008-08-14 | Thyssenkrupp Steel Ag | Method for producing a magnesium strip |
DE102006057858A1 (en) | 2006-12-08 | 2008-08-21 | Vladimir Volchkov | Continuous casting method for steels which are highly alloyed and have high carbon content comprises casting melt on to strip of unalloyed, low-carbon steel whose edges are brought together around it and welded together |
CN102747204B (en) * | 2012-07-13 | 2013-11-27 | 洛阳用功高频感应加热设备有限公司 | Inducing heating device for thin steel strip coil and heat treatment process thereof |
DE102012017682A1 (en) | 2012-08-31 | 2014-03-06 | Vladimir Volchkov | Continuous casting of non-ferrous metals involves pouring melt of non-ferrous metal in continuously formed movable metallic sheath, forming continuous cast block, and continuously welding edge strips in controlled protective atmosphere |
DE102012017684A1 (en) | 2012-08-31 | 2014-03-06 | Vladimir Volchkov | Continuous casting of non-ferrous metals, comprises casting a melt of non-ferrous metal on movable metallic sheath, which is made of band, subjecting band edges to continuous welding to form melt, and wrapping continuous cast block |
RS58044B1 (en) | 2014-06-11 | 2019-02-28 | Arvedi Steel Eng S P A | Thin slab nozzle for distributing high mass flow rates |
EP2982453A1 (en) | 2014-08-06 | 2016-02-10 | Primetals Technologies Austria GmbH | Adjustment of a targeted temperature profile on the strip head and strip foot before transversally cutting a metal strip |
CN111842483B (en) * | 2020-07-02 | 2022-03-01 | 武汉科技大学 | Multi-mode energy-saving hot-rolled strip steel production line and using method thereof |
CN117165751B (en) * | 2023-08-08 | 2024-04-16 | 北京科技大学 | Method for improving full-length tissue uniformity of microalloyed high-strength steel cold-rolled base stock |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2110317A1 (en) * | 1971-03-04 | 1972-09-07 | Bergische Stahlindustrie | Furnace reel, especially for Steckel mills |
JPS5736013A (en) * | 1980-08-12 | 1982-02-26 | Sumitomo Metal Ind Ltd | Descaling method for high-temperature rolled material |
JPS6130224A (en) * | 1984-07-23 | 1986-02-12 | Nippon Steel Corp | Sheet-width regulating scale breaker |
JPS61269925A (en) * | 1985-05-24 | 1986-11-29 | Kawasaki Steel Corp | Descaling method in hot rolling |
AT382394B (en) | 1985-08-21 | 1987-02-25 | Voest Alpine Ag | REEL STOVE |
DE4013582C1 (en) | 1990-04-24 | 1991-07-11 | Mannesmann Ag, 4000 Duesseldorf, De | |
DE4121489C2 (en) * | 1991-06-26 | 1994-08-04 | Mannesmann Ag | Furnace plant as a buffer behind a thin slab caster |
IT1271570B (en) * | 1993-06-04 | 1997-05-30 | Giovanni Arvedi | INTERCONNECTION UNIT BETWEEN ONE OR MORE HOT MANUFACTURING LINES OF FLAT PRODUCTS OF STEEL TYPE, SLIM OR TAPE SLABS AND UNALINEA AT THE VALLEY OF LAMINATION OF BELT OR SIMILAR FINISH |
NL1000694C2 (en) * | 1995-06-29 | 1997-01-08 | Hoogovens Staal Bv | Method and device for manufacturing a deformable steel strip. |
NL1003293C2 (en) * | 1996-06-07 | 1997-12-10 | Hoogovens Staal Bv | Method and device for manufacturing a steel strip. |
-
1999
- 1999-04-07 EP EP99917048A patent/EP1196256B1/en not_active Expired - Lifetime
- 1999-04-07 WO PCT/IT1999/000082 patent/WO2000059650A1/en active IP Right Grant
- 1999-04-07 DE DE69909332T patent/DE69909332T2/en not_active Expired - Lifetime
- 1999-04-07 AU AU35321/99A patent/AU3532199A/en not_active Abandoned
- 1999-04-07 AT AT99917048T patent/ATE244078T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO0059650A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1657004A1 (en) | 2004-10-28 | 2006-05-17 | ARVEDI, Giovanni | Process and production line for manufacturing hot ultrathin steel strips with two casting lines for a single endless rolling line |
Also Published As
Publication number | Publication date |
---|---|
DE69909332T2 (en) | 2004-05-27 |
EP1196256B1 (en) | 2003-07-02 |
ATE244078T1 (en) | 2003-07-15 |
WO2000059650A1 (en) | 2000-10-12 |
AU3532199A (en) | 2000-10-23 |
DE69909332D1 (en) | 2003-08-07 |
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