GB2047591A - Method of producing strip material from aluminium, copper, steel or alloys of these metals using a continuous casting machine and apparatus for carrying out the method - Google Patents
Method of producing strip material from aluminium, copper, steel or alloys of these metals using a continuous casting machine and apparatus for carrying out the method Download PDFInfo
- Publication number
- GB2047591A GB2047591A GB8014435A GB8014435A GB2047591A GB 2047591 A GB2047591 A GB 2047591A GB 8014435 A GB8014435 A GB 8014435A GB 8014435 A GB8014435 A GB 8014435A GB 2047591 A GB2047591 A GB 2047591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rolling
- strand
- strip material
- roll
- casting machine
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000009749 continuous casting Methods 0.000 title claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 7
- 239000010949 copper Substances 0.000 title claims abstract description 7
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 6
- 239000000956 alloy Substances 0.000 title claims abstract description 6
- 239000004411 aluminium Substances 0.000 title claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 5
- 239000002184 metal Substances 0.000 title claims abstract description 5
- 150000002739 metals Chemical class 0.000 title claims abstract description 5
- 239000010959 steel Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title claims description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 44
- 238000005266 casting Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 4
- 241000842962 Apoda limacodes Species 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007688 edging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002994 raw 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
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- 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
- B21B2013/003—Inactive rolling stands
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
A strand of aluminium, copper, steel or alloys of these metals, having a thickness of up to 60 mm and a width of up to 200 mm is produced by a continuous casting machine and is converted into strip material having a minimum thickness of 8 mm by passage through three roll stands only, the first and third stands performing flat rolling and the second stand performing edge rolling.
Description
SPECIFICATION
Method of producing strip material from aluminium, copper, steel or alloys of these metals using a continuous casting machine and apparatus for carrying out the method
The invention relates to a method of producing strip material from aluminium, copper, steel or alloys of these metals in which the strand leaving a continuous casting machine is subjected to a plurality of successive rolling operations and is finally delivered in coiled form for further use. The strip material produced from the strand can if necessary be passed through a deoxidizing bath.
The novel apparatus according to the invention for carrying out the method involves, as known elements, a continuous casting machine, a plurality of roll strands and a collecting device disposed in tandem.
The above-described known method and the known apparatus have hitherto been used to produce wire, in particular from copper, aluminium and their alloys. The raw material is melted in a furnace, from which it is transferred to a holding furnace and then to a continuous casting machine which produces a strand of rectangular cross section.
The casting machine consists either of two endless casting bands forming a suitable casting cross section or of a casting wheel which co-operates with an external endless band to define the casting cross section. The casting machine with double casting bands has the advantage over the machine using a wheel and a band that the casting cross section can be changed within a given range in a more simple manner.
After leaving the casting machine, the strand travels, if necessary, through a cooling zone and is then freed by cutters from sharp edges and fed to the rolling stage by suitable means, in particular over a train of rollers. The rolling stage normally consists of a roughing section of three individually driven roll stands providing an edging pass, a flat pass and a further edging pass followed by a further section containing at least ten roll stands with a common drive. The wire leaving this section receives its final cross section in two following individual roll stands.
The finish rolled wire is normally moved by a coiler in coiled form through a treatment bath-in particular an etching bath for removing scaly and finally taken away by suitable means to a collecting device, in particular a train of rollers.
The known process and apparatus preferably involve use of roll stands with overhung rolling discs.
The object of the invention, in further development of the above-mentioned state of the art, is to provide a method of producing strip material by means of a continuous casting machine, and apparatus for carrying out the method, which involves minimum expenditure and which is such that an existing apparatus can be used to produce either wire or strip material utilizing at least part of the existing portion of the apparatus.
This object is achieved by a method which involves in essence the characteristics of claim
1. In contrast to the above mentioned state of the art the strand produced by the casting machine is subjected to three successive rolling operations only, two flat rolling operations (flat passes) being separated by one edge rolling operation (edging pass). While the production of wire requires an initial edge rolling operation and then, up to the last roll stand, alternate flat and edge rolling operations the newly proposed method requires, starting with a flat rolling operation, only three successive rolling operations in all. The cast strand preferably leaves the casting machine with an initial thickness of up to 60 mm and an initial width of up to 200 mm; at the end of the rolling operations the minimum thickness of the strip material produced is 8 mm.
To avoid interference by disturbances occurring beyond the rolling zone the strip material is suitably arranged in festoons at a suitable point beyond the last roll stand; this is achieved in known manner by a so-called festooning device (claim 3). The festooned strip material can be retarded without disturbing the flow and therefore fed to discontinuously operating collecting devides. It is also possible to coil the strip material after leaving the last roll stand (claim 5).
When the method is to be carried out with existing equipment the third (and therefore the last) of rolling operations may be carried out by the first roll stand of an existing and otherwise inoperative roll train provided the existing roughing train, as previously mentioned, consists of two roll stands performing edge rolling and one roll stand performing flat rolling, the first roll stand following the casting machine and the following roll stands being inoperative when producing strip mate-rial (claim 8).
The method, when carried out on an existing plant, can also be effected by passing the rolled strip material through an inoperative roll train for the purpose of precooling (claim 9).
The method can advantageously also be performed by additional utilization of the characteristics of at least one of the claims not so far mentioned, i.e. 2, 4, 6, 7, 10 and 11.
The apparatus for carrying out the method exhibits in essence the characteristics of claim 1 2. The three successively roll stands are advantageously such that the initial thickness of 60 mm of the cast strand is reduced to 8 mm, preferably 10 mm. Further advantageous features of the newly proposed apparatus are set out in claims 1 3 to 20.
When the apparatus is to form an additional part of a plant used for production of wire, the last of the three roll stands can be driven by the common drive of an existing idling roll train (claim 19). Advantageously said roll stand is constituted by the first suitable roll stand of an existing roll train and driven by the common drive of the otherwise idling roll train (claim 20).
If it is impossible, or only possible at heavy cost, to pass the strip material through an existing idling roll train and so cool it if necessary by the cooling units associated with the roll train, the first suitably situated roll stand in the roll train can be made displaceable towards the preceding roll stand; this makes it possible to deviate the strip material after leaving the preceding roll stand so that it no longer passes through the roll train. Thus the strip material may be deviated laterally or may be taken away above the roll train.
The advantage of lateral deviation of the strip material is that the devices following the three roll stands, in particular an optional festooning device, a deoxidizing bath and a following collecting device, can be disposed parallel to the existing units of a plant for producing wire. The existing plant can also be modified to produce strip material by provision of an easily and rapidly erected S-shaped deviating device. Such amplification of an existing plant is particularly useful when it is required to produce strip material at intervals and in small quantitites only.
The invention will now be further described with reference to the drawings, in which:
Figure 1 is a schematic view of the preferred embodiment of the newly proposed apparatus, and
Figure 2 is a diagram showing the changes in cross section of the strand or strip material produced by the individual rolling operations.
The material, e.g. copper alloy, to be formed into strip is melted in a shaft furnace 1, passes through a pipe 2 into a holding furnace 3 acting as a reservoir, and passes thence through a pipe 4 into a continuous casting machine 5. This can, in known manner, include double casting bands which form a casting cross section which travels with them. The casting machine 5 can, however, also be of the wheel type and include a casting wheel which forms a casting cross section with an external endless band.
It is important in this connection that the casting machine 5 should produce continuously a strand 6 (indicated in chain dotted lines) having a thickness of up to 60 mm and a width of up to 200 mm.
Conveniently the casting machine 5 is followed immediately by a cooling zone (not shown). After leaving the casting machine the strand 6 passes over a series of rollers 7 to a cutting unit 8 which trims off sharp edges produced by cutting.
The rolling zone of the apparatus consists essentially of three consecutive roll stands 9 to 11, with individual drives 9' to 11', which include overhung rolling discs 9" to 1". The rolling discs of the first and third roll stands are such as to perform flat rolling while on the other hand the central roll train performs edge rolling. The rolling discs are such that the strip material 6 after leaving the third roll stand 11 has a minimum thickess of 8 mm, preferably 10 mm.
After leaving the last roll stand 11 the strip material is guided by a pair of driven rolls 1 2 into a festooning device. The festoons therein formed slide along a plate 1 3 (or on suitable guiding sheets) to a coiling device 1 6. This is preceded by another pair of driven rolls 14 and a shears 1 5. When a coil of desired weight has been formed, the coiling device 1 6 and the rollers 14 are braked to a standstill, the strip material is cut by the shears 1 5 and the finished coil is removed from the coiling device by a transfer device 1 7.
The tip of the strip material fed by the rolls 14 is clamped to the mandrel of the coiling device 1 6 and coiling of the next coil is then commenced.
The completed coils 20 are removed by an output conveyor 18 and can be taken away from a loading point 19.
The newly proposed apparatus can also be equipped with a rotary coil shears and a following coiling device with two independent coilers. In this case no festooning device is required as one of the two coiling devices is always in operation so that attainment of the required weight of coil does not interrupt flow of the material.
The nature of the successive rolling operations and the dimensions and operating conditions of the roll stands 9 to 11 can be seen from Fig. 2.
The copper strand a leaving the casting machine may have for example a width of 125 mm and a thickness of 38 mm.
The three successive rolling operations are such that the strip material after the first flat pass b has a width of 130 mm and a thickness of 1 7 mm, after the edge pass c a width of 11 2 mm and a thickness of 17 mm and after the second flat pass d a width of 1 15 mm and a thickness of 8.3 mm. The special relationships of the apparatus are such that the hourly output is about 30 tons.
The newly proposed method can also be carried out in existing plants, insofar as its individual roll stands have the above-described succession of passes. The remaining roll stands will then be rendered inoperative during production of strip material, insofar as this is possible, at any rate serve as guide elements.
If the strip material cannot be passed through the three necessary roll stands of successive roll stands particularly in a roll train, a deviating device can be used to deviate the strip material into another direction.
The devices 1 2 to 1 6 can follow-preferably parallel to the direction of rolling-the deviating device (not shown) which follows the last operative roll stand of the existing plant.
Instead of roll stands 9 to 11 with overhung rolling discs 9" to 11" it is, of course, also possible to use roll stands with rolls journalled at both sides. The first mentioned form of roll stand has the advantage that the rolling discs are more easily accessible and therefore easier to mount in position than the rolls with double journals.
Claims (20)
1. A method of producing strip material of aluminium, copper, steel or alloys of these metals, in which the strand leaving a continuous casting machine is subjected to successive rolling operation and is finally delivered for further use in coiled form, characterised in that the cast strand is subjected in succession to flat rolling, edge rolling and then renewed flat rolling, the strand leaving the casting machine having a thickness of up to 60 mm and a width of up to 200 mm and having at the conclusion of rolling a minimum thickness of 8 mm.
2. A method according to claim 1, characterised in that the initial width of the strand is up to 1 20 mm and the minimum thickness of the strip material after rolling is 10 mm.
3. A method according to claim 1 or claim 2, characterised in that the strip material formed from the strand is festooned following rolling.
4. A method according to claims 1 to 3, characterised in that the strand is rolled by overhung rolling discs.
5. A method according to claims 1-4, characterised in that the strip material formed from the strand is coiled after rolling.
6. A method according to claims 1 to 5, characterised in that the strand is formed by double casting bands.
7. A method according to claims 1 to 5, characterised in that the strand is formed by a casting wheel.
8. A method according to claims 1 to 7, characterised in that the second flat rolling is performed by the first suitable roll stand of an existing roll train, normally used only to produce wire.
9. A method according to claims 1 to 8, characterised in that the strip material is passed after rolling through an existing but inoperative roll train and is thereby precooled.
10. A method according to claims 1 to 9, characterised in that the edges of the cast strip are trimmed by cutting.
11. A method according to claims 1 to 10, characterised in that the strip material produced from the strand is passed through a treatment bath.
1 2. Apparatus for carrying out the method according to claims 1 to 11, including a continuous casting machine followed by a number of roll stands, and a collecting device, characterised in that only three successive roll stands are provided, the first and the third effecting flat rolling and the second effecting edge rolling.
1 3. Apparatus according to claim 12, characterised in that the roll stands have individual drives and overhung rolling discs.
14. Apparatus according to claim 13, characterised in that the rolling discs are conical.
1 5. Apparatus according to claims 1 2 to 14, characterized in that the last roll stand is followed by a device for laying the strip material in festoons.
1 6. Apparatus according to claims 1 2 to 15, characterized in that the casting machine has double casting bands.
1 7. Apparatus according to claims 1 2 to 15, characterised in that the casting machine has a casting wheel.
18. Apparatus according to claims 12 to 17, characterised in that the collecting device includes at least one coiling device preceded by a cutting device.
1 9. Apparatus according to claims 1 2 to 18, characterised in that the last roll stand is driven by the common drive of an existing idling roll train.
20. Apparatus according to claims 1 2 to 19, characterised in that the last roll stand is the first suitable roll stand of an existing roll train and is driven by a common drive for the otherwise idling roll train.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792917784 DE2917784A1 (en) | 1979-05-03 | 1979-05-03 | METHOD FOR PRODUCING FLAT MATERIAL FROM ALUMINUM, COPPER, STEEL OR ALLOYS OF THESE MATERIALS BY MEANS OF A CONTINUOUSLY WORKING CASTING MACHINE, AND DEVICE FOR CARRYING OUT THE METHOD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2047591A true GB2047591A (en) | 1980-12-03 |
Family
ID=6069804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8014435A Withdrawn GB2047591A (en) | 1979-05-03 | 1980-05-01 | Method of producing strip material from aluminium, copper, steel or alloys of these metals using a continuous casting machine and apparatus for carrying out the method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS55147402A (en) |
| DE (1) | DE2917784A1 (en) |
| ES (1) | ES488891A1 (en) |
| GB (1) | GB2047591A (en) |
| IT (1) | IT1149858B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266564A2 (en) * | 1986-11-06 | 1988-05-11 | Sms Schloemann-Siemag Aktiengesellschaft | Strip casting installation with a following multiple stand continuous rolling mill |
| WO1999064176A1 (en) * | 1998-06-10 | 1999-12-16 | Aluminium Pechiney | Method for producing metal shapes with a polygonal cross-section by means of continuous casting on a double-flanged wheel and continuous rolling |
| CN103191920A (en) * | 2013-04-27 | 2013-07-10 | 乐清市长城金属线材有限公司 | Continuous casting and rolling device and production process of copper strip busbar |
-
1979
- 1979-05-03 DE DE19792917784 patent/DE2917784A1/en not_active Ceased
-
1980
- 1980-02-25 ES ES488891A patent/ES488891A1/en not_active Expired
- 1980-04-23 IT IT21574/80A patent/IT1149858B/en active
- 1980-05-01 JP JP5715680A patent/JPS55147402A/en active Pending
- 1980-05-01 GB GB8014435A patent/GB2047591A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0266564A2 (en) * | 1986-11-06 | 1988-05-11 | Sms Schloemann-Siemag Aktiengesellschaft | Strip casting installation with a following multiple stand continuous rolling mill |
| EP0266564A3 (en) * | 1986-11-06 | 1988-09-14 | Sms Schloemann-Siemag Aktiengesellschaft | Strip casting installation with a following multiple stand continuous rolling mill |
| WO1999064176A1 (en) * | 1998-06-10 | 1999-12-16 | Aluminium Pechiney | Method for producing metal shapes with a polygonal cross-section by means of continuous casting on a double-flanged wheel and continuous rolling |
| FR2779672A1 (en) * | 1998-06-10 | 1999-12-17 | Pechiney Rhenalu | METHOD FOR MANUFACTURING METAL PROFILES OF POLYGONAL SECTION BY CONTINUOUS CASTING ON A THREADED WHEEL AND CONTINUOUS LAMINATION |
| US6584669B1 (en) | 1998-06-10 | 2003-07-01 | Aluminium Pechiney | Method for producing metal shapes with a polygonal cross-section by means of continuous casting on a double-flanged wheel and continuous rolling |
| CN103191920A (en) * | 2013-04-27 | 2013-07-10 | 乐清市长城金属线材有限公司 | Continuous casting and rolling device and production process of copper strip busbar |
| CN103191920B (en) * | 2013-04-27 | 2015-02-18 | 乐清市长城金属线材有限公司 | Continuous casting and rolling device and production process of copper strip busbar |
Also Published As
| Publication number | Publication date |
|---|---|
| ES488891A1 (en) | 1980-09-16 |
| IT1149858B (en) | 1986-12-10 |
| DE2917784A1 (en) | 1980-11-13 |
| IT8021574A0 (en) | 1980-04-23 |
| JPS55147402A (en) | 1980-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |