CA2613975C - Method and production line for manufacturing metal strips made of copper or copper alloys - Google Patents
Method and production line for manufacturing metal strips made of copper or copper alloys Download PDFInfo
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- CA2613975C CA2613975C CA2613975A CA2613975A CA2613975C CA 2613975 C CA2613975 C CA 2613975C CA 2613975 A CA2613975 A CA 2613975A CA 2613975 A CA2613975 A CA 2613975A CA 2613975 C CA2613975 C CA 2613975C
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- continuous casting
- strip
- copper
- milling
- strip continuous
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 56
- 239000010949 copper Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 title claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 19
- 229910000881 Cu alloy Inorganic materials 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 28
- 238000005266 casting Methods 0.000 claims abstract description 59
- 238000003801 milling Methods 0.000 claims abstract description 45
- 238000005097 cold rolling Methods 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 239000000155 melt Substances 0.000 claims abstract description 4
- 238000000137 annealing Methods 0.000 claims description 33
- 238000009749 continuous casting Methods 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 99
- 238000010586 diagram Methods 0.000 description 7
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- -1 e.g. Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/003—Rolling non-ferrous metals immediately subsequent to continuous casting, i.e. in-line rolling
-
- 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
-
- 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
- B21B15/0035—Forging or pressing devices as units
- B21B15/005—Lubricating, cooling or heating means
-
- 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
- B21B2003/005—Copper or its alloys
-
- 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
- B21B2015/0014—Cutting or shearing the product transversely to 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
- 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
- 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
- B21B2015/0064—Uncoiling the rolled 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0242—Lubricants
-
- 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
- B21B45/02—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 lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Abstract
Disclosed are a method and a production line for manufacturing metal strips made of copper or copper alloys by means of casting and rolling. In order to lower the investment cost and operating expenses therefor, the melt (2) is cast into a copper strip (4) in a vertical and/or horizontal continuous strip casting process (3), and the hot copper strip (4) is cleaned by milling (5) the top and bottom face (5a, 5b) thereof, is subjected to a cold rolling process (6), and is prepared for shipping, or is subjected to an inspection (12) and then prepared for shipping after being annealed (7), pickled (8), washed (9), dried (10), and optionally temper rolled (11).
Description
TRANSLATION (HM-799PCT):
WO 2007/006,478 Al PCT/EP2006/006,590 METHOD AND PRODUCTION LINE FOR MANUFACTURING METAL STRIPS MADE
OF COPPER OR COPPER ALLOYS
The invention concerns a method and a production line for producing metal strip from copper or copper alloys by casting and rolling.
Until now, metal strip of this type made of soft metals, such as copper or copper alloys, has been produced by casting in slabs (DE 692 22 504 T2). After it has been cooled, the slab must be reheated and rolled out to the required thickness in a hot rolling process. The hot rolling is followed by milling of the upper and lower surfaces, inspection, and coiling into a coil. The metal strip is unwound from the coil and passed through a reversing mill. After a cold rolling operation, it is coiled into a coil and in this form is annealed in a box annealing installation for microstructural refinement or is continuously annealed in uncoiled form. It is then pickled, washed, dried, and temper rolled, and the surface is reinspected before the strip is coiled.
The operating costs to be expended for this and the investment costs for new construction and plant design with available useful floor space are basically very high. Metal strip made of copper or copper alloys are cast and rolled in horizontal casting processes at, for example, 15-20,000 t/year and with significantly lower investment costs.
Increased capacity, which is presently demanded by the market (30,000 to 70,000 t/year), can no longer be economically achieved with the present cost structure.
The objective of the invention is nevertheless to realize the increased capacity that is being demanded in combination with lower operating costs and reduced plant investment costs.
In accordance with the invention, the stated objective is achieved by casting the melt into copper strip in a vertical and/or horizontal continuous strip casting process, cleaning the copper strip by milling its upper side and underside, subjecting it to a cold rolling process, and preparing it for shipment, or first annealing, pickling, washing and drying it, and possibly subjecting it to a temper rolling step, and then inspecting it and preparing it for shipment. The advantages are that a slab casting installation, heating of the slab to rolling temperature, and hot rolling are completely eliminated. Furthermore, it is advantageous that the cold rolling process can be flexibly adapted to the planned production amounts, for example, by virtue of the fact that the cold rolling can be operated at optimum strip temperature on the delivery side.
In one embodiment, stacks of sheets can be produced from inspected coils by cutting the copper strip to length.
In another embodiment, coilable narrow copper strips can be produced from inspected coils by slitting the copper strip.
It is advantageous to effect temperature control during cold rolling by lubricating the copper strip with oil on the run-in side and cooling it with cold or cryogenic inert gases on the runout side. Various media can be used for cooling.
In this regard, it is advantageous if the set-point assignment for the rolling parameters is set to a maximum strip temperature of 120 C. In this way, the parameters (actual values) for casting and milling can be connected to the rolling process.
The method can be still further improved if the coils of copper strip that have been cold rolled under temperature control to final strip thickness are further refined in their microstructure either in a box annealing installation in the form of a coil or in a continuous annealing operation and then pickled, washed and dried, subjected to a surface inspection, and then further processed in coil form.
WO 2007/006,478 Al PCT/EP2006/006,590 METHOD AND PRODUCTION LINE FOR MANUFACTURING METAL STRIPS MADE
OF COPPER OR COPPER ALLOYS
The invention concerns a method and a production line for producing metal strip from copper or copper alloys by casting and rolling.
Until now, metal strip of this type made of soft metals, such as copper or copper alloys, has been produced by casting in slabs (DE 692 22 504 T2). After it has been cooled, the slab must be reheated and rolled out to the required thickness in a hot rolling process. The hot rolling is followed by milling of the upper and lower surfaces, inspection, and coiling into a coil. The metal strip is unwound from the coil and passed through a reversing mill. After a cold rolling operation, it is coiled into a coil and in this form is annealed in a box annealing installation for microstructural refinement or is continuously annealed in uncoiled form. It is then pickled, washed, dried, and temper rolled, and the surface is reinspected before the strip is coiled.
The operating costs to be expended for this and the investment costs for new construction and plant design with available useful floor space are basically very high. Metal strip made of copper or copper alloys are cast and rolled in horizontal casting processes at, for example, 15-20,000 t/year and with significantly lower investment costs.
Increased capacity, which is presently demanded by the market (30,000 to 70,000 t/year), can no longer be economically achieved with the present cost structure.
The objective of the invention is nevertheless to realize the increased capacity that is being demanded in combination with lower operating costs and reduced plant investment costs.
In accordance with the invention, the stated objective is achieved by casting the melt into copper strip in a vertical and/or horizontal continuous strip casting process, cleaning the copper strip by milling its upper side and underside, subjecting it to a cold rolling process, and preparing it for shipment, or first annealing, pickling, washing and drying it, and possibly subjecting it to a temper rolling step, and then inspecting it and preparing it for shipment. The advantages are that a slab casting installation, heating of the slab to rolling temperature, and hot rolling are completely eliminated. Furthermore, it is advantageous that the cold rolling process can be flexibly adapted to the planned production amounts, for example, by virtue of the fact that the cold rolling can be operated at optimum strip temperature on the delivery side.
In one embodiment, stacks of sheets can be produced from inspected coils by cutting the copper strip to length.
In another embodiment, coilable narrow copper strips can be produced from inspected coils by slitting the copper strip.
It is advantageous to effect temperature control during cold rolling by lubricating the copper strip with oil on the run-in side and cooling it with cold or cryogenic inert gases on the runout side. Various media can be used for cooling.
In this regard, it is advantageous if the set-point assignment for the rolling parameters is set to a maximum strip temperature of 120 C. In this way, the parameters (actual values) for casting and milling can be connected to the rolling process.
The method can be still further improved if the coils of copper strip that have been cold rolled under temperature control to final strip thickness are further refined in their microstructure either in a box annealing installation in the form of a coil or in a continuous annealing operation and then pickled, washed and dried, subjected to a surface inspection, and then further processed in coil form.
The production line for producing metal strip from copper or copper alloy with at least a melting installation, a casting installation, and a rolling installation is preferably designed for cold forming from 23 mm to 0.2 mm copper strip thickness.
To achieve the stated objective with respect to the equipment, it is proposed that the melting installation be followed in succession in the direction of production by at least one vertical continuous strip casting installation and/or one horizontal continuous strip casting installation, a milling installation immediately downstream, a strip uncoiler, a cold rolling installation, a strip coiler, and an annealing installation. A casting installation for slabs, which cool and then must be reheated to rolling temperature in a furnace, and a hot rolling mill itself are completely eliminated. This means not only lower capital expenditure for the construction of the production line but also lower operating expenses (lower repair costs and shorter repair times) and at the same time greater productivity of the plant.
Additional advantages are realized in the further course of the production line:
The cold rolling installation consists of a reversing mill.
To achieve the stated objective with respect to the equipment, it is proposed that the melting installation be followed in succession in the direction of production by at least one vertical continuous strip casting installation and/or one horizontal continuous strip casting installation, a milling installation immediately downstream, a strip uncoiler, a cold rolling installation, a strip coiler, and an annealing installation. A casting installation for slabs, which cool and then must be reheated to rolling temperature in a furnace, and a hot rolling mill itself are completely eliminated. This means not only lower capital expenditure for the construction of the production line but also lower operating expenses (lower repair costs and shorter repair times) and at the same time greater productivity of the plant.
Additional advantages are realized in the further course of the production line:
The cold rolling installation consists of a reversing mill.
The milling installation is located immediately downstream of the vertical continuous strip casting installation. It is advantageous that the copper strip runs directly into the next installation.
The vertical continuous strip casting installation, the milling installation, and the reversing mill follow one another in immediate succession. The copper strip runs into the following installation without interruption.
The cold rolling installation consists of a tandem mill.
The vertical continuous strip casting installation, the milling installation, and the tandem mill follow one another in immediate succession. The copper strip runs from installation to installation without interruption.
To realize higher rolling capacities, it is advantageous for two parallel upstream vertical continuous strip casting installations and milling installations to be assigned to the tandem mill.
To realize a higher casting capacity relative to the rolling installation, one vertical and one horizontal continuous strip casting installation, each with a milling installation installed immediately downstream of it, are installed upstream of the tandem mill.
When there are two casting installations, the production line is designed in such a way that with two parallel-casting vertical continuous strip casting installations, a reversing mill follows each milling installation.
In another combination for casting / milling and rolling, parallel-producing vertical and horizontal continuous strip casting installations are each followed by a reversing mill.
For all combinations of the production line, it is provided that the annealing installation consists either of a box annealing installation for coils or of a continuous annealing installation in the form of a strip floating furnace.
In one aspect, the present invention provides a method of producing metal strips from copper or copper alloys by casting and rolling, the method comprising: casting a melt in at least one of a vertical and horizontal strip continuous casting process to form copper strip; cleaning the copper strip by milling an upper side and a lower side of the copper strip; cold rolling the copper strip; annealing the copper strip; and inspecting the copper strip and making ready for despatch in the form of inspected coils.
In a further aspect, the present invention provides a finishing line for producing metal strips of copper or copper alloys, comprising a smelting device wherein arranged in sequence one after the other to follow the smelting device in succession in a finishing direction are at least one vertical strip continuous casting device and horizontal strip continuous casting device, directly succeeding a milling device, a coil unrolling device, a cold-rolling device, a coil rolling-up device and an annealing device..
The drawings illustrate specific embodiments of the invention, which are explained in greater detail below.
-- Figure 1 shows a modular view of the entire production line with the individual units.
-- Figure 2 shows a block diagram of a production line with a combination based on local conditions that consists of a continuous strip casting installation with a milling installation.
-- Figure 3 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation / reversing mill.
6a - Figure 4 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation / and tandem mill.
-- Figure 5 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation and tandem mill.
-- Figure 6 shows a block diagram of a production line with two parallel continuous strip casting installations, each of which is combined with a milling installation, and a tandem mill.
-- Figure 7 shows a block diagram of a production line with one vertical and one horizontal continuous strip casting installation, each of which is immediately followed by a milling installation, and a tandem mill.
-- Figure 8 shows a block diagram of a production line with parallel vertical continuous strip casting installations, followed by parallel milling installations and parallel reversing mills.
-- Figure 9 shows a production line with a parallel pair of vertical and horizontal continuous strip casting installations, each of which is followed by a reversing mill.
To produce a metal strip 1 from a soft material (Figure 1), molten metal 2, e.g., copper or a copper alloy, is cast from a melting furnace (not shown in detail) in a continuous strip casting process, and the copper strip 4 is descaled by milling 5 with support rollers arranged obliquely opposite each other on the upper side 5a and the underside 5b of the copper strip 4, subjected to a cold rolling process 6, subjected to a surface inspection 12, coiled into a coil 13, and then prepared for shipment.
A coil 13 can also be returned to the cold rolling process 6 for further reduction of the thickness 18 of the copper strip. The microstructure, which is thus very strongly compressed, is coiled into an inspected coil in a treatment by annealing 7, pickling 8, washing 9, drying 10 and possibly a temper rolling step 11, followed by an inspection 12.
Stacked sheets 14 are then produced from the coils 13, whose surfaces have been inspected, by cutting the copper strip 4 to length. The sheets are then sent for shipment.
Alternatively, coilable narrow copper strips 17 are produced from the inspected coils 13 by slitting 16 the copper strip and are then sent for shipment (in the arrow direction).
To produce a desired microstructure and analogous properties for the protection of the work rolls, the cold rolling process 6 can be carried out in such a way that the copper strip 4 is lubricated with oil on the run-in side (Figure 1, left) or cooled and cleaned with cold or cryogenic inert gases, e.g., nitrogen, on the runout side (Figure 1, right). The set points for the rolling parameters are set to a maximum strip temperature of 120 C on the runout side.
The final strip thickness 18 is obtained under temperature control on the basis of an advantageous process of this type, and the coils 13 of copper strip are treated either in a box annealing installation 31 with the strip in coil form 13 (upper part of Figure 1) or by a continuous annealing process 7 in order to refine the microstructure and to make the copper strip soft again. This is followed by pickling 8, washing 9, drying 10, and coiling into coils 13 that have been subjected to a surface inspection 12.
A melting installation 20 (e.g., an electric furnace) supplies melt to a casting installation 21, which consists of a vertical continuous strip casting installation 24a or may also consist of a horizontal continuous strip casting installation 24b in special cases or in cases in which such an installation is already present.
Cold deformation from 23 mm to 0.2 mm copper strip thickness 18 preferably takes place in a rolling installation 22 immediately downstream of the casting installation 21 and the milling 5.
The melting installation 20 is followed in succession in the direction of production 23 by at least the vertical continuous strip casting installation 24a or in exceptional cases an existing horizontal continuous strip casting installation 24b, an immediately downstream milling installation 25, a strip uncoiler 26, the cold rolling installation 22, a strip coiler 27, and an annealing installation 28, all of which are arranged in succession in the direction of production 23.
In the embodiment illustrated in Figure 2, the cold rolling installation 22 is a reversing mill 29. It is an essential part of the invention that the milling installation 25 immediately follows the vertical continuous strip casting installation 24a (or the horizontal continuous strip casting installation 24b). The milling installation 25 is followed by a reversing mill 29, the box annealing installation 31, a strip floating furnace 32a, together with the temper rolling step 11 and, if desired, a step in which the strip is cut to length 15 with a flying shear and in which the strip is slit 16 into narrow copper strips.
In the production line according to Figure 3, the vertical continuous strip casting installation 24a, the milling installation 25, and the reversing mill 29 form a functionally interacting unit.
In Figure 4, the cold rolling unit 22 consists of a tandem mill 30. The milling installation 25 again follows directly after the vertical continuous strip casting installation 24a.
In accordance with Figure 5, which illustrates an arrangement similar to that of Figure 3, the vertical continuous strip casting installation 24a, the milling installation 25, and now a tandem mill 30 form the interacting unit. The box annealing installation 31, the strip floating furnace 32a, the temper rolling step 11, and possibly the cutting to length 15 and/or the slitting 16 follow this unit in the same way as in the preceding Figures 2 to 4.
In Figure 6, the casting capacity is increased. To this end, two parallel upstream vertical continuous strip casting installations 24a, 24a and their associated milling installations 25 are assigned to the tandem mill 30.
According to Figure 7, one vertical continuous strip casting installation 24a and one horizontal continuous strip casting installation 24b, each with its own functionally connected milling installation 25, are arranged upstream of the tandem mill 30.
In Figure 8, two parallel vertical continuous strip casting installations 24a, 24a and their respective milling installations 25 are each followed by a reversing mill 29 at a customary fixed distance.
Figure 9 shows an arrangement in which vertical and horizontal continuous strip casting installations 24a, 24b in parallel production are each followed at the customary distance by a reversing mill 29.
The annealing installation 28 consists either of a box annealing installation 31 for coils 13 or a continuous annealing installation 32 in the form of a strip floating furnace 32a.
List of Reference Numbers 1 metal strip 2 melt 3 continuous strip casting process 4 copper strip milling 5a upper side of the metal strip 5b underside of the metal strip 6 cold rolling process 7 annealing 8 pickling 9 washing drying 11 temper rolling step 12 inspection 13 (inspected) coil 14 sheets cutting to length 16 slitting 17 narrow copper strips 18 copper strip thickness 20 melting installation 21 casting installation 22 (cold) rolling installation 23 direction of production 24a vertical continuous strip casting installation 24b horizontal continuous strip casting installation 25 milling installation 26 strip uncoiler 27 strip coiler 28 annealing installation 29 reversing mill 30 tandem mill 31 box annealing installation 32 continuous annealing installation 32a strip floating furnace
The vertical continuous strip casting installation, the milling installation, and the reversing mill follow one another in immediate succession. The copper strip runs into the following installation without interruption.
The cold rolling installation consists of a tandem mill.
The vertical continuous strip casting installation, the milling installation, and the tandem mill follow one another in immediate succession. The copper strip runs from installation to installation without interruption.
To realize higher rolling capacities, it is advantageous for two parallel upstream vertical continuous strip casting installations and milling installations to be assigned to the tandem mill.
To realize a higher casting capacity relative to the rolling installation, one vertical and one horizontal continuous strip casting installation, each with a milling installation installed immediately downstream of it, are installed upstream of the tandem mill.
When there are two casting installations, the production line is designed in such a way that with two parallel-casting vertical continuous strip casting installations, a reversing mill follows each milling installation.
In another combination for casting / milling and rolling, parallel-producing vertical and horizontal continuous strip casting installations are each followed by a reversing mill.
For all combinations of the production line, it is provided that the annealing installation consists either of a box annealing installation for coils or of a continuous annealing installation in the form of a strip floating furnace.
In one aspect, the present invention provides a method of producing metal strips from copper or copper alloys by casting and rolling, the method comprising: casting a melt in at least one of a vertical and horizontal strip continuous casting process to form copper strip; cleaning the copper strip by milling an upper side and a lower side of the copper strip; cold rolling the copper strip; annealing the copper strip; and inspecting the copper strip and making ready for despatch in the form of inspected coils.
In a further aspect, the present invention provides a finishing line for producing metal strips of copper or copper alloys, comprising a smelting device wherein arranged in sequence one after the other to follow the smelting device in succession in a finishing direction are at least one vertical strip continuous casting device and horizontal strip continuous casting device, directly succeeding a milling device, a coil unrolling device, a cold-rolling device, a coil rolling-up device and an annealing device..
The drawings illustrate specific embodiments of the invention, which are explained in greater detail below.
-- Figure 1 shows a modular view of the entire production line with the individual units.
-- Figure 2 shows a block diagram of a production line with a combination based on local conditions that consists of a continuous strip casting installation with a milling installation.
-- Figure 3 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation / reversing mill.
6a - Figure 4 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation / and tandem mill.
-- Figure 5 shows a block diagram of a production line with a combination that consists of a continuous strip casting installation / milling installation and tandem mill.
-- Figure 6 shows a block diagram of a production line with two parallel continuous strip casting installations, each of which is combined with a milling installation, and a tandem mill.
-- Figure 7 shows a block diagram of a production line with one vertical and one horizontal continuous strip casting installation, each of which is immediately followed by a milling installation, and a tandem mill.
-- Figure 8 shows a block diagram of a production line with parallel vertical continuous strip casting installations, followed by parallel milling installations and parallel reversing mills.
-- Figure 9 shows a production line with a parallel pair of vertical and horizontal continuous strip casting installations, each of which is followed by a reversing mill.
To produce a metal strip 1 from a soft material (Figure 1), molten metal 2, e.g., copper or a copper alloy, is cast from a melting furnace (not shown in detail) in a continuous strip casting process, and the copper strip 4 is descaled by milling 5 with support rollers arranged obliquely opposite each other on the upper side 5a and the underside 5b of the copper strip 4, subjected to a cold rolling process 6, subjected to a surface inspection 12, coiled into a coil 13, and then prepared for shipment.
A coil 13 can also be returned to the cold rolling process 6 for further reduction of the thickness 18 of the copper strip. The microstructure, which is thus very strongly compressed, is coiled into an inspected coil in a treatment by annealing 7, pickling 8, washing 9, drying 10 and possibly a temper rolling step 11, followed by an inspection 12.
Stacked sheets 14 are then produced from the coils 13, whose surfaces have been inspected, by cutting the copper strip 4 to length. The sheets are then sent for shipment.
Alternatively, coilable narrow copper strips 17 are produced from the inspected coils 13 by slitting 16 the copper strip and are then sent for shipment (in the arrow direction).
To produce a desired microstructure and analogous properties for the protection of the work rolls, the cold rolling process 6 can be carried out in such a way that the copper strip 4 is lubricated with oil on the run-in side (Figure 1, left) or cooled and cleaned with cold or cryogenic inert gases, e.g., nitrogen, on the runout side (Figure 1, right). The set points for the rolling parameters are set to a maximum strip temperature of 120 C on the runout side.
The final strip thickness 18 is obtained under temperature control on the basis of an advantageous process of this type, and the coils 13 of copper strip are treated either in a box annealing installation 31 with the strip in coil form 13 (upper part of Figure 1) or by a continuous annealing process 7 in order to refine the microstructure and to make the copper strip soft again. This is followed by pickling 8, washing 9, drying 10, and coiling into coils 13 that have been subjected to a surface inspection 12.
A melting installation 20 (e.g., an electric furnace) supplies melt to a casting installation 21, which consists of a vertical continuous strip casting installation 24a or may also consist of a horizontal continuous strip casting installation 24b in special cases or in cases in which such an installation is already present.
Cold deformation from 23 mm to 0.2 mm copper strip thickness 18 preferably takes place in a rolling installation 22 immediately downstream of the casting installation 21 and the milling 5.
The melting installation 20 is followed in succession in the direction of production 23 by at least the vertical continuous strip casting installation 24a or in exceptional cases an existing horizontal continuous strip casting installation 24b, an immediately downstream milling installation 25, a strip uncoiler 26, the cold rolling installation 22, a strip coiler 27, and an annealing installation 28, all of which are arranged in succession in the direction of production 23.
In the embodiment illustrated in Figure 2, the cold rolling installation 22 is a reversing mill 29. It is an essential part of the invention that the milling installation 25 immediately follows the vertical continuous strip casting installation 24a (or the horizontal continuous strip casting installation 24b). The milling installation 25 is followed by a reversing mill 29, the box annealing installation 31, a strip floating furnace 32a, together with the temper rolling step 11 and, if desired, a step in which the strip is cut to length 15 with a flying shear and in which the strip is slit 16 into narrow copper strips.
In the production line according to Figure 3, the vertical continuous strip casting installation 24a, the milling installation 25, and the reversing mill 29 form a functionally interacting unit.
In Figure 4, the cold rolling unit 22 consists of a tandem mill 30. The milling installation 25 again follows directly after the vertical continuous strip casting installation 24a.
In accordance with Figure 5, which illustrates an arrangement similar to that of Figure 3, the vertical continuous strip casting installation 24a, the milling installation 25, and now a tandem mill 30 form the interacting unit. The box annealing installation 31, the strip floating furnace 32a, the temper rolling step 11, and possibly the cutting to length 15 and/or the slitting 16 follow this unit in the same way as in the preceding Figures 2 to 4.
In Figure 6, the casting capacity is increased. To this end, two parallel upstream vertical continuous strip casting installations 24a, 24a and their associated milling installations 25 are assigned to the tandem mill 30.
According to Figure 7, one vertical continuous strip casting installation 24a and one horizontal continuous strip casting installation 24b, each with its own functionally connected milling installation 25, are arranged upstream of the tandem mill 30.
In Figure 8, two parallel vertical continuous strip casting installations 24a, 24a and their respective milling installations 25 are each followed by a reversing mill 29 at a customary fixed distance.
Figure 9 shows an arrangement in which vertical and horizontal continuous strip casting installations 24a, 24b in parallel production are each followed at the customary distance by a reversing mill 29.
The annealing installation 28 consists either of a box annealing installation 31 for coils 13 or a continuous annealing installation 32 in the form of a strip floating furnace 32a.
List of Reference Numbers 1 metal strip 2 melt 3 continuous strip casting process 4 copper strip milling 5a upper side of the metal strip 5b underside of the metal strip 6 cold rolling process 7 annealing 8 pickling 9 washing drying 11 temper rolling step 12 inspection 13 (inspected) coil 14 sheets cutting to length 16 slitting 17 narrow copper strips 18 copper strip thickness 20 melting installation 21 casting installation 22 (cold) rolling installation 23 direction of production 24a vertical continuous strip casting installation 24b horizontal continuous strip casting installation 25 milling installation 26 strip uncoiler 27 strip coiler 28 annealing installation 29 reversing mill 30 tandem mill 31 box annealing installation 32 continuous annealing installation 32a strip floating furnace
Claims (19)
1. A method of producing metal strips (1) from copper or copper alloys by casting and rolling, the method comprising:
casting a melt (2) in at least one of a vertical and horizontal strip continuous casting process (3) to form copper strip (4); cleaning the copper strip (4) by milling (5) an upper side (5a) and a lower side (5b) of the copper strip; cold rolling (6) the copper strip; annealing the copper strip; and inspecting the copper strip and making ready for despatch in the form of inspected coils.
casting a melt (2) in at least one of a vertical and horizontal strip continuous casting process (3) to form copper strip (4); cleaning the copper strip (4) by milling (5) an upper side (5a) and a lower side (5b) of the copper strip; cold rolling (6) the copper strip; annealing the copper strip; and inspecting the copper strip and making ready for despatch in the form of inspected coils.
2. The method according to claim 1, further comprising after annealing (7), at least one of pickling (8), washing (9), drying (10) and tempering-pass rolling the copper strip.
3. The method according to claim 1 or claim 2, wherein sheets (14) are produced in stacked manner from the inspected coils (13) by transverse dividing (15) the copper strip (4).
4. The method according to claim 1 or claim 2, wherein copper strip lengths (17) able to be rolled up are produced from the inspected coils (13) by longitudinal dividing (16).
5. The method according to any one of claims 1 to 4, wherein during the cold rolling (6) the copper strip (4) is lubricated with oil on an inlet side and is cooled by cold or chilled inert gases on an outlet side.
6. The method according to any one of claims 1 to 5, wherein a target value preset for the cold rolling parameters is set to a maximum strip temperature of 120° C.
7. The method according to any one of claims 1 to 6, wherein the annealing comprises annealing the cold rolled copper strip in a bell annealing device (31) in coil form (13) or in a continuous annealing process (7).
8. A finishing line for producing metal strips (1) of copper or copper alloys, comprising a smelting device (20) wherein arranged in sequence one after the other to follow the smelting device (20) in succession in a finishing direction (23) are at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b), directly succeeding a milling device (25), a coil unrolling device (26), a cold-rolling device (22), a coil rolling-up device (27) and an annealing device (28).
9. The finishing line according to claim 8, wherein the metal strips have a thickness ranging from 23 millimetres to 0.2 millimetres.
10. The finishing line according to claim 8 or claim 9, wherein the cold-rolling device (22) consists of a reversing stand (29).
11. The finishing line according to any one of claims 8 to 10, wherein the milling device (25) directly adjoins the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b).
12. The finishing line according to claim 10, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b), the milling device (25) and the reversing stand (29) directly adjoin one another.
13. The finishing line according to claim 8 or claim 9, wherein the cold-rolling device (22) consists of a tandem stand (30).
14. The finishing line according to claim 13, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b), the milling device (25) and the tandem stand (30) directly adjoin one another.
15. The finishing line according to claim 13 or claim 14, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b) comprise two vertical strip continuous casting devices (24a; 24a), each of the two vertical strip continuous casting devices being arranged in parallel and upstream of respective associated milling devices (25), wherein each milling device is associated with the tandem stand (30).
16. The finishing line according to claim 13 or claim 14, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b) comprise a vertical strip continuous casting device (24a) and a horizontal strip continuous casting device (24b), each with a respective directly following milling device (25) which are each arranged upstream of the tandem stand (30).
17. The finishing line according to claim 10, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b) comprise two vertical strip continuous casting devices (24a; 24a) casting in parallel, the milling device comprises respective milling devices associated with the two vertical strip continuous casting devices, and the reversing stand (29) comprises respective reversing stands which follow the respective milling devices (25).
18. Finishing line according to claim 8, wherein the at least one vertical strip continuous casting device (24a) and horizontal strip continuous casting device (24b) comprise a vertical and a horizontal strip continuous casting device (24a; 24b) in parallel, and a respective reversing stand (29) follows each for finishing.
19. Finishing line according to any one of claims 8 to 18, wherein the annealing device (28) comprises a bell annealing device (31) for coils (13) or a continuous annealing device (32) as a suspended strip oven (32a).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005031805.3 | 2005-07-07 | ||
| DE102005031805A DE102005031805A1 (en) | 2005-07-07 | 2005-07-07 | Method and production line for producing metal strips of copper or copper alloys |
| PCT/EP2006/006590 WO2007006478A1 (en) | 2005-07-07 | 2006-07-06 | Method and production line for manufacturing metal strips made of copper or copper alloys |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2613975A1 CA2613975A1 (en) | 2007-01-18 |
| CA2613975C true CA2613975C (en) | 2012-05-15 |
Family
ID=37055927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2613975A Expired - Fee Related CA2613975C (en) | 2005-07-07 | 2006-07-06 | Method and production line for manufacturing metal strips made of copper or copper alloys |
Country Status (21)
| Country | Link |
|---|---|
| US (2) | US20090107589A1 (en) |
| EP (1) | EP1909981B1 (en) |
| JP (1) | JP5280200B2 (en) |
| KR (1) | KR101138711B1 (en) |
| CN (1) | CN101218042B (en) |
| AR (1) | AR054826A1 (en) |
| AT (1) | ATE414572T1 (en) |
| AU (1) | AU2006268944B2 (en) |
| BR (1) | BRPI0611392A2 (en) |
| CA (1) | CA2613975C (en) |
| DE (2) | DE102005031805A1 (en) |
| EG (1) | EG24891A (en) |
| ES (1) | ES2316082T3 (en) |
| MX (1) | MX2007012580A (en) |
| MY (1) | MY140622A (en) |
| PL (1) | PL1909981T3 (en) |
| RU (1) | RU2372158C2 (en) |
| TW (1) | TWI391190B (en) |
| UA (1) | UA84815C2 (en) |
| WO (1) | WO2007006478A1 (en) |
| ZA (1) | ZA200707541B (en) |
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| CN102133579B (en) * | 2010-01-27 | 2013-05-01 | 中国钢铁股份有限公司 | Steel blank hot rolling process reducing generation of etch pit |
| KR101382305B1 (en) * | 2010-12-06 | 2014-05-07 | 현대자동차주식회사 | System for controlling motor of hybrid vehicle |
| CN102051564B (en) * | 2011-01-21 | 2012-04-25 | 中南大学 | Method for preparing ultra-fine crystal grain high-strength high-toughness copper alloy strip |
| CN103722040A (en) * | 2013-11-18 | 2014-04-16 | 青岛盛嘉信息科技有限公司 | Production technique of copper strips |
| RU2577204C2 (en) * | 2014-02-25 | 2016-03-10 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Дальневосточный Федеральный Университет" (Двфу) | Self-electric manipulator |
| CN104190710A (en) * | 2014-09-24 | 2014-12-10 | 江苏鑫成铜业有限公司 | Production technology for pure copper belt |
| CN104759484B (en) * | 2015-04-27 | 2017-02-01 | 安徽众源新材料股份有限公司 | Short-procedure wide copper belt production device and process |
| CN106334711A (en) * | 2016-09-27 | 2017-01-18 | 绵阳铜鑫铜业有限公司 | Temperature control method for continuous casting and rolling |
| CN107695622B (en) * | 2017-09-22 | 2019-05-24 | 山西春雷铜材有限责任公司 | The preparation method of new energy car battery tab copper strips |
| CN108057999B (en) * | 2017-12-29 | 2021-01-12 | 安徽楚江科技新材料股份有限公司 | Double-strength copper strip production process for automobile connector |
| CN108543922B (en) * | 2018-07-03 | 2020-02-11 | 东北大学 | Sector section secondary cooling system for recompression of solidification tail end |
| JP7254626B2 (en) | 2019-05-27 | 2023-04-10 | 東芝インフラシステムズ株式会社 | Aperture opening/closing device and opening/closing method |
| CN110629140B (en) * | 2019-10-14 | 2021-05-07 | 江苏泰祥电线电缆有限公司 | High strength alloy copper conductor annealing device |
| CN110921207B (en) * | 2019-10-31 | 2021-03-16 | 安徽万朗磁塑股份有限公司 | Automatic transfer and distribution production line for door seal |
| CN112080658A (en) * | 2020-08-28 | 2020-12-15 | 西安斯瑞先进铜合金科技有限公司 | Preparation method of copper-iron alloy plate strip |
| CN112296117A (en) * | 2020-08-29 | 2021-02-02 | 安徽楚江科技新材料股份有限公司 | Red copper strip rolling process |
| CN113083891A (en) * | 2021-03-29 | 2021-07-09 | 安徽楚江科技新材料股份有限公司 | Copper strip rolling production process flow |
| CN113198867B (en) * | 2021-04-15 | 2023-06-06 | 安徽金池新材料有限公司 | Copper strip production process |
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-
2005
- 2005-07-07 DE DE102005031805A patent/DE102005031805A1/en not_active Withdrawn
-
2006
- 2006-06-07 UA UAA200712510A patent/UA84815C2/en unknown
- 2006-07-05 TW TW095124423A patent/TWI391190B/en not_active IP Right Cessation
- 2006-07-06 ES ES06762447T patent/ES2316082T3/en active Active
- 2006-07-06 DE DE502006002140T patent/DE502006002140D1/en active Active
- 2006-07-06 RU RU2007139513/02A patent/RU2372158C2/en active
- 2006-07-06 US US11/988,328 patent/US20090107589A1/en not_active Abandoned
- 2006-07-06 KR KR1020077021156A patent/KR101138711B1/en active IP Right Grant
- 2006-07-06 MX MX2007012580A patent/MX2007012580A/en active IP Right Grant
- 2006-07-06 CA CA2613975A patent/CA2613975C/en not_active Expired - Fee Related
- 2006-07-06 AU AU2006268944A patent/AU2006268944B2/en not_active Ceased
- 2006-07-06 EP EP06762447A patent/EP1909981B1/en not_active Not-in-force
- 2006-07-06 JP JP2008518765A patent/JP5280200B2/en not_active Expired - Fee Related
- 2006-07-06 CN CN2006800246876A patent/CN101218042B/en not_active Expired - Fee Related
- 2006-07-06 PL PL06762447T patent/PL1909981T3/en unknown
- 2006-07-06 WO PCT/EP2006/006590 patent/WO2007006478A1/en active Application Filing
- 2006-07-06 BR BRPI0611392-3A patent/BRPI0611392A2/en not_active IP Right Cessation
- 2006-07-06 AT AT06762447T patent/ATE414572T1/en active
- 2006-07-07 AR ARP060102951A patent/AR054826A1/en active IP Right Grant
- 2006-07-07 MY MYPI20063245A patent/MY140622A/en unknown
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2007
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2011
- 2011-05-13 US US13/107,757 patent/US20110214834A1/en not_active Abandoned
Also Published As
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| JP5280200B2 (en) | 2013-09-04 |
| AR054826A1 (en) | 2007-07-18 |
| CN101218042A (en) | 2008-07-09 |
| RU2372158C2 (en) | 2009-11-10 |
| MX2007012580A (en) | 2007-12-10 |
| DE102005031805A1 (en) | 2007-01-18 |
| EP1909981A1 (en) | 2008-04-16 |
| BRPI0611392A2 (en) | 2010-09-08 |
| WO2007006478A1 (en) | 2007-01-18 |
| CN101218042B (en) | 2012-12-05 |
| RU2007139513A (en) | 2009-04-27 |
| AU2006268944A1 (en) | 2007-01-18 |
| PL1909981T3 (en) | 2009-04-30 |
| JP2008544858A (en) | 2008-12-11 |
| UA84815C2 (en) | 2008-11-25 |
| ZA200707541B (en) | 2008-04-30 |
| MY140622A (en) | 2009-12-31 |
| US20090107589A1 (en) | 2009-04-30 |
| EP1909981B1 (en) | 2008-11-19 |
| ATE414572T1 (en) | 2008-12-15 |
| EG24891A (en) | 2010-12-13 |
| TWI391190B (en) | 2013-04-01 |
| KR101138711B1 (en) | 2012-04-24 |
| KR20080023213A (en) | 2008-03-12 |
| CA2613975A1 (en) | 2007-01-18 |
| AU2006268944B2 (en) | 2010-12-09 |
| DE502006002140D1 (en) | 2009-01-02 |
| ES2316082T3 (en) | 2009-04-01 |
| US20110214834A1 (en) | 2011-09-08 |
| TW200709871A (en) | 2007-03-16 |
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