Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/14—Plants for continuous casting
  • B22D11/141—Plants for continuous casting for vertical casting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
  • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
  • B22D11/043—Curved moulds
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
  • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
  • B22D11/0631—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by a travelling straight surface, e.g. through-like moulds, a belt
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/14—Plants for continuous casting
  • B22D11/142—Plants for continuous casting for curved casting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/14—Plants for continuous casting
  • B22D11/143—Plants for continuous casting for horizontal casting
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B22—CASTING; POWDER METALLURGY
  • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
  • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D11/14—Plants for continuous casting
  • B22D11/147—Multi-strand plants
• • 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
  • 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
  • B21B39/14—Guiding, positioning or aligning work
  • B21B39/18—Switches for directing work in metal-rolling mills or trains

Definitions

• the invention relates to an apparatus and a method for casting and rolling of metal, in particular steel, by means of casting plants and downstream rolling mill.
• thin slabs and “slabs” refer to thin slabs (5-35 mm thick), thin slabs (35-90 mm thick), medium thick slabs (90-150 mm thick) or pre-ribbons (20-50 mm thick).
• horizontal thin-slab casting plant in the context of the present description is synonymous with a horizontal strip casting plant, in particular a BCT plant (Belt Casting Technology) or a DSC plant (Direct Strip Casting).
• vertical thin-slab casting plant covers in particular the following plant types: thin-slab casting plants in a "compact strip production", a vertical casting plant with subsequent bending and straightening device for a strand with still liquid bottoms, a vertical casting plant with subsequent turning and straightening device for a solidified strand (eg a CSP plant) or a circular arc casting plant.
• the document EP 1 708 830 B1 shows a CSP plant which is designed for the production of thin slabs having a thickness of about 50 mm.
• a two-strand system is shown.
• the strands produced in this plant are fed to a common rolling mill.
• the transport of the strands is done by so-called pivoting ferries.
• a parallel rolling mill for conventional thick slabs or medium-thick slabs is arranged, which is preceded by a saugerüstige roughing, are reduced to be introduced into the CSP line slabs to a thickness of about 50 mm.
• a roughing stand or a sheet rolling mill stand is connected upstream.
• the metal pouring and rolling apparatus which comprises at least a first and a second casting line for casting slabs and means for transporting slabs cast in the first casting line into the second casting line and a rolling line
• Rolling of the cast slabs comprises, wherein the first casting line is formed as a horizontal thin slab casting plant, the at least one task vessel for a melt and in the casting direction behind the
• the second casting line is likewise designed as a horizontal thin slab casting installation or is designed as a vertical thin slab casting installation comprising at least one mold for vertical casting of slabs and a bending and straightening device for bending the vertical and wherein one of the two casting lines is followed by a rolling line for rolling the cast slabs and the at least two casting lines and the means for transport are formed such that the respectively cast with one of the at least two casting lines slab fed to the rolling train can be.
• a rolling train can be better utilized.
• even an existing rolling mill can be better utilized by expansion with additional casting lines.
• by providing a horizontal thin-slab caster it is possible to produce high or high-alloy steels, as well as crack-sensitive steels and in particular steels with a high aluminum content, since the thin slabs in the horizontal thin-slab caster are driven by the moving mold or belt do not come into contact with casting powder.
• the combination with the horizontal thin-slab casting plant also achieves a fine grain structure through fast solidification and a low tendency to segregation.
• oscillation marks on the cast product can be avoided by a co-rotating mold. Any cracks, bending or straightening damages are also avoided.
• each of the at least two casting lines is designed as a horizontal thin-slab casting plant, which is followed by the rolling train to m rolls of the slabs cast in the horizontal sludge casting plants.
• the at least two casting lines are designed to cast slabs of such a small thickness that no roughing stand for rolling the slabs prior to entry into the rolling train is necessary for the cast slabs.
• the thin slab caster is designed for casting and rolling slabs having a thickness between 40 mm and 1 20 mm and / or the horizontal thin slab caster for casting and rolling slabs with a thickness between 5 mm and 35 mm (preferably 10 mm and 20 mm) formed.
• the at least one horizontal thin-slab casting installation is designed for casting high-alloy and highest-alloyed steels.
• At least one tempering device in particular a furnace, is arranged in the casting direction behind the conveyor belt of the at least one thin-slab casting plant and / or at least one tempering device, in particular an oven, behind the bending device of the at least one thin-slab casting plant in the casting direction
• the means for transporting slabs cast in one of the at least two casting lines are men in another of the at least two casting lines by ferries, in particular pivoting, formed and / or the ferries designed such that the transport takes place in a portion of the temperature control of the other casting line of the at least two casting lines.
• the at least two casting lines are arranged parallel to one another and / or next to one another.
• the apparatus comprises a total of three casting lines, which are arranged parallel to one another, wherein in the casting direction behind the middle of the three casting lines, the rolling mills is arranged for rolling the slabs cast in the casting lines.
• the invention comprises a method for casting and rolling metal with at least two casting lines, also referred to as first and second casting line, for casting slabs, in particular with the device according to one of the preceding claims, wherein thin slabs are cast horizontally in at least one of the casting lines and in at least one other casting line also thin slabs are cast horizontally and / or slabs poured vertically and / or in the arc and bent during or after casting in a horizontal direction, the cast slabs are then fed exactly to a rolling mill.
• the advantages of the method according to the invention largely correspond to those of the device according to the invention.
• the horizontally cast thin slabs are formed by steels having an aluminum content of up to 10%. In a further preferred embodiment of the method, the horizontally cast thin slabs are formed by steels having an aluminum content between 1% and 3%.
• the horizontally cast thin slabs are formed by carbon steels, low alloy steels, high alloy steels or peritectic steels.
• FIG. 1 a shows a schematic plan view of an exemplary embodiment of a device according to the invention in which a horizontal thin-slab casting installation can be connected via pivoting ferries to a two-strand thin-slab casting installation;
• FIG. 1 b shows a perspective view of the device according to FIG. 1 a, but with a common distributor channel for the two-strand vertical thin-slab casting installation;
• FIG. 1c shows a schematic plan view of an exemplary embodiment of a device according to the invention analogous to FIG. 1a, but with a shorter tempering section;
• FIG. 1 d a perspective view of the device according to FIG. 1 c;
• FIG. 2a shows a schematic plan view of an exemplary embodiment according to the invention with a thin-slab casting plant, including orderly rolling mill and two horizontal thin slab casters which can be connected to this plant via swivel ferries;
• FIG. 2b shows a perspective view of the device according to FIG. 2a
• 3a shows a schematic plan view of an embodiment according to the invention with a horizontal thin-slab casting plant including downstream rolling mill and two other connectable with this system via pivoting horizontal thin slab casting plants;
• FIG. 3b shows a perspective view of the device according to FIG. 3a
• Figure 4a is a schematic plan view of an embodiment according to the invention of three horizontal thin slab casting plants, which are fed via a common distribution channel and can be connected to each other by pivoting ferries and which a common rolling line is arranged downstream;
• FIG. 4b a perspective view of the device according to FIG. 4b.
• FIG. 1a shows an embodiment of a device according to the invention with two CSP plants 2 or vertical thin slab casting plants 2.
• These vertical thin slab casting plants 2 are known per se.
• a strand is first cast vertically with a mold 4 and subsequently bent by means of a bending device 7 and finally directed with a straightening unit.
• a separating device 8 or a pair of scissors 8 is provided further in the casting direction.
• the slabs reach a downstream tempering device 9, in particular a Oven 9.
• the braziers can be heated or kept at a certain temperature.
• a horizontal thin slab casting plant 1 is arranged. This is preferably located parallel to one of the vertical thin-slab casting plant 2.
• the plant 1 shown above in FIG. 1a has a feed vessel 5 for the melt and a conveyor belt 6 onto which the liquid melt is passed and on which Metal band begins to solidify.
• the subordinate is provided in Figure 1 a, a tempering zone or device 9.
• swinging ferries 10 are furthermore provided in order to transport the slabs from the end of the two outer casting lines to the casting line arranged in the middle.
• panning ferries 10 is known to those skilled in the art.
• parallel ferries may also be provided according to the invention, as they are also generally known.
• the temperature control regions 9 may be designed as roller hearth furnaces, in particular the ferries 10 are designed as (tunnel) furnace ferries.
• FIG. 1 1 is preferably in line with the middle of the three casting lines.
• the slabs produced by the outer lines can then be transported by means of the ferries 10 into a section of the tempering device 9 which is in line with the rolling train 11.
• an additional roughing stand can also be provided in order to roll introduced slabs.
• the design of the casting plants 1, 2 downstream rolling train 1 1, including preferably several rolling stands 12, is not in the focus of the invention and is carried out in a known manner.
• FIG. 1 b shows the device according to FIG.
• Figures 1 c and 1 d show a similar inventive embodiment of a device such as Figures 1 a and 1 b.
• the horizontal thin-slab casting installation 1 shown at the top in FIGS. 1 b and 1 c
• Such systems can now be operated more economically, although they have only a relatively short Tem per réelles Scheme 9 for temporary storage of thin or thin slabs.
• the remaining arrangement is equivalent to the arrangement shown in Figures 1 a and 1 b.
• FIG 2a shows a vertical thin slab casting plant 2, which is downstream of a rolling mill 1 1 in line.
• horizontal thin slab casting plants 1 of a type are arranged on both sides, as it is already shown in Figures 1 b and 1 c.
• slabs can be transported by means of ferries 10 from the two external Thin slab casting plants 1 or casting lines via the ferries 10, preferably from the end of the respective temperature control device 9, are transported or passed into a section of the temperature control region 9 of the central casting line or the thin slab casting plant 2. This section is preferably, seen in the casting, in a central region of the tempering device 9 of the vertical thin slab casting 2.
• FIG. 2b shows the same arrangement as FIG. 2a, but in a perspective view.
• the reference numbers are to be understood analogously to the characters in FIGS. 1 a to 1 d.
• Figures 3a and 3b show a further embodiment of an inventive device in a plan view and in a perspective view.
• three horizontal Dünnbrammen- casting machines 1 are arranged side by side, wherein the arranged in the middle of the three plants thin slab casting plant 1 in line or in the same flight a rolling mill 1 1 is arranged downstream.
• a ferry system 10 is provided for transporting slabs from the external systems to the centrally arranged system or casting line.
• Figures 4a and 4b are to be regarded as analogous to Figures 3a and 3b, but all casting lines are supplied by a common distributor trough 3 with melt.
• a common distributor trough 3 with melt One can also speak in this case of a three- or multi-strand system that supplies a rolling mill 1 1.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Metal Rolling (AREA)
• Continuous Casting (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (14)

Families Citing this family (7)

Family Cites Families (19)

• 2010
  • 2010-11-09 DE DE102010050647A patent/DE102010050647A1/de not_active Withdrawn
  • 2010-11-18 WO PCT/EP2010/067771 patent/WO2011061262A1/de active Application Filing
  • 2010-11-18 TW TW099139681A patent/TW201127509A/zh unknown
  • 2010-11-18 CN CN2010800106538A patent/CN102341198A/zh active Pending
  • 2010-11-18 AU AU2010320921A patent/AU2010320921A1/en not_active Abandoned
  • 2010-11-18 JP JP2011550610A patent/JP2012518541A/ja not_active Ceased
  • 2010-11-18 EP EP10781495A patent/EP2501506A1/de not_active Withdrawn
  • 2010-11-18 MX MX2011011319A patent/MX2011011319A/es unknown
  • 2010-11-18 RU RU2011138386/02A patent/RU2461442C1/ru not_active IP Right Cessation
  • 2010-11-18 US US13/257,088 patent/US20120006502A1/en not_active Abandoned
  • 2010-11-18 UA UAA201111315A patent/UA102591C2/ru unknown
  • 2010-11-18 CA CA2753152A patent/CA2753152A1/en not_active Abandoned
  • 2010-11-18 KR KR1020117018615A patent/KR20110103465A/ko not_active Application Discontinuation
  • 2010-11-19 AR ARP100104299A patent/AR080066A1/es not_active Application Discontinuation

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