CA2119957C - Reversing compact installation for cold rolling strip-shaped rolling material - Google Patents
Reversing compact installation for cold rolling strip-shaped rolling material Download PDFInfo
- Publication number
- CA2119957C CA2119957C CA002119957A CA2119957A CA2119957C CA 2119957 C CA2119957 C CA 2119957C CA 002119957 A CA002119957 A CA 002119957A CA 2119957 A CA2119957 A CA 2119957A CA 2119957 C CA2119957 C CA 2119957C
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- Canada
- Prior art keywords
- reversing
- strip
- stand
- rolling
- work rolls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000005096 rolling process Methods 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 title claims abstract description 21
- 238000005097 cold rolling Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D57/00—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track
- B62D57/02—Vehicles characterised by having other propulsion or other ground- engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by cold-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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/227—Surface roughening or texturing
-
- 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
- B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
- B21B13/142—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/021—Twin mills
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/025—Quarto, four-high stands
-
- 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
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/028—Sixto, six-high stands
-
- 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
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B2031/206—Horizontal offset of work rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
- B21B2203/06—Cassettes
-
- 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
The invention relates to an installation for cold rolling strip-shaped rolling material, with a reversing stand disposed between two reel-up or unreeling coils or reels.
Approximately 450,000 tons of hot rolled strip can be rolled in the course of one year into cold strips in such single stand reversing trains. In order to be able to roll 700,000 tons of cold strip per year, a second reversing stand in the rolling line of the first reversing stand is provided and both stands can be adjusted corresponding to consecutive passes for performing the rolling process.
Approximately 450,000 tons of hot rolled strip can be rolled in the course of one year into cold strips in such single stand reversing trains. In order to be able to roll 700,000 tons of cold strip per year, a second reversing stand in the rolling line of the first reversing stand is provided and both stands can be adjusted corresponding to consecutive passes for performing the rolling process.
Description
~~.~.~~~'~
gIELn og Tsa iio~r The invention deals with an installation for cold rolling of strip-shaped rolling material.
$~clCGR00ND.OF TSE INVEI~~TION
The use of single stand reversing mills for cold rolling strip-shaped rolling material is well known. In such single stand reversing mills, up to approximately 450,000 tons per year of hot rolled strip can be cold rolled. If the steel plant has a higher output of hot rolled strips, then any hot rolled strips exceeding the approximately 450,000 tons per year yield could not be cold~rollec~ and a second single stand reversing mill or train must be erected.
Another possibility is to provide a multi-stand, for instance, a four or five-stand tandem train, which works economically starting with an output of 1 million tons per year. In so-called "mini-steel plants," which have an output of approximately 700,000 tons per year, the use of a fowc-stand tandem train for cold rolling strips is not worthwhile for economic reasons. The single-stand reversing mill or train for cold rolling strips however is inadequate for rolling the entire output of a "mini-steel mill" into cold rolled strips.
gIELn og Tsa iio~r The invention deals with an installation for cold rolling of strip-shaped rolling material.
$~clCGR00ND.OF TSE INVEI~~TION
The use of single stand reversing mills for cold rolling strip-shaped rolling material is well known. In such single stand reversing mills, up to approximately 450,000 tons per year of hot rolled strip can be cold rolled. If the steel plant has a higher output of hot rolled strips, then any hot rolled strips exceeding the approximately 450,000 tons per year yield could not be cold~rollec~ and a second single stand reversing mill or train must be erected.
Another possibility is to provide a multi-stand, for instance, a four or five-stand tandem train, which works economically starting with an output of 1 million tons per year. In so-called "mini-steel plants," which have an output of approximately 700,000 tons per year, the use of a fowc-stand tandem train for cold rolling strips is not worthwhile for economic reasons. The single-stand reversing mill or train for cold rolling strips however is inadequate for rolling the entire output of a "mini-steel mill" into cold rolled strips.
The solution of providing two single-stand reversing trains in one single "mini-steel plant" is also cost intensive because the two trains are not operating at full load capacity and since relatively high installation invention must be undertaken for the two trains.
Another disadvantage of a single reversing stand, compared to multi-stand installations, is the inability to use a rag or roll in the last pass.
It is therefore an object of the invention to provide a cold rolling mill for a widely distributed assortment of strip-shaped rolling material.
Another object of the invention is to provide a reversing compact installation for cold rolling strip-shaped rolling material which has a yearly capacity of approximately 700,000 tons of cold rolled strip and which is thus optimally suited for use in "mini steel plants" -- i.e. in production range between a reversing stand and a tandem train.
Yet another object of the invention is to assure that work rolls with variable diameters can be used to assure optimum pass reductions.
ran-~s~ss i A further object of the invention is to permit use of rag or roughened work rolls for the last pass.
Additionally, an object of the invention is to simplify and speed up the change of work rolls in case of friction driven work rolls, which again favors a higher throughout.
SUI~1ARY OF THE INVENTION
These and other objects of the invention, which shall be hereafter apparent, are achieved by a reversing compact installation for cold rolling strip-shaped rolling material, with a reversing stand disposed between two reversible reels and a reel from which the strip to be used can be taken off .
More specifically, the present invention provides an installation for cold rolling a strip-shaped rolling material, the installation comprising two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which the strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand wherein both first and second reversing stands are adjustable in accordance with consecutive passes for performing the rolling process, wherein both first and second stands are simultaneously operated. The reversing stands each have drive means for directly driving work rolls, and the reversing stands each further comprise linearly displaceable means arranged on a side of a respective reversing stand opposite to a side on which the drive means is arranged for a quick change of the work rolls with which the work rolls provided with work rolls blocks in the cassette type of construction can be changed, whereby replacement of work rolls of different diameters and/or different roughness is possible.
The present invention also provides a method of coldrolling of a strip-shaped rolling material, the method comprising the steps of (a) providing a cold rolling installation including two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which a strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand, the first and second stands being adjustable in accordance with performed consecutive passes, operating simultaneously, and each having drive means for directly driving respective work rolls, (b) unwinding the strip-shaped rolling material from one of the two reversing reels, rolling the unwound strip-shaped rolling material in the first stand and then second stand, and winding rolled strip-shaped material 4a onto another of the two reversing reels, (c) reversing the direction of rotation of the respective work rolls in the first and second stands, (d) unwinding the strip-shaped rolling material from another of the two reversing reels, . rolling the strip-shaped rolling material in the second stand and then in the first stand, and winding the rolled strip-shaped rolling material onto the one of the reversing reels, (e) repeating steps (c) and (d) at least one more time, and changing, if necessary, in a last repeat of steps (c) and (d), the work rolls of one of the first and second stands, which is located downstream of the other of the first and second stands in a rolling direction, by work rolls having different roughness.
Usually hot rolled strips were cold rolled in several passes. Tn a multi-stand tandem train, these passes are rolled in the course of one single passage, while in a single stand reversing train, three to seven passages must be performed.
Only'two to three passages are however necessary in the two stand reversing train of the invention, so that a large throughput is achieved in the same time period compared to the single stand reversing trains. The installation proposed here 4b ~~.~.~~~'r is considerably more cost effective than two single-stand reversing trains. Also, the area requirement for the proposed two stand reversing train is smaller than in the case of two single stand reversing trains disposed, for instance, parallel to one another. It must be added that the two-stand reversing train can be arranged to lie in line with the strip treatment stations disposed upstream of the rolling train, whereas the two single stand reversing trains required for an output of approximately 700,000 tons must always be fed coils of hot rolled strips, through switches and displacement devices. It is also essential that, compared to the single-stand reversing train, a considerably higher strip tension level be achieved so that the reducing characteristic of a four to six-stand, tandem train can be achieved.
The invention will be better understood, by the Detailed Description of the Preferred Embodiment, in connection with the drawings of which Figure 1 is a schematic of a two-stand reversing train of the invention;
~m ~' .~. .~~ ~ .~ v ~\r Figure 2 is a cross-sectional through the two-stand reversing train in the invention; and Figures 3a and 3b depict a two°stand reversing train connected to a push type pickling installation.
DBTgIIZED DERCRIPTIOId OF THE PREFERRED EMBODIMENT
Referring now to the drawings, wherein lake numerals reflect like elements, throughout the several views, Figure 1 shows a cold rolling train 1 comprising two reversing stands 2, 3 - in this case with four-high stands having Work rolls 4, 4~;
Another disadvantage of a single reversing stand, compared to multi-stand installations, is the inability to use a rag or roll in the last pass.
It is therefore an object of the invention to provide a cold rolling mill for a widely distributed assortment of strip-shaped rolling material.
Another object of the invention is to provide a reversing compact installation for cold rolling strip-shaped rolling material which has a yearly capacity of approximately 700,000 tons of cold rolled strip and which is thus optimally suited for use in "mini steel plants" -- i.e. in production range between a reversing stand and a tandem train.
Yet another object of the invention is to assure that work rolls with variable diameters can be used to assure optimum pass reductions.
ran-~s~ss i A further object of the invention is to permit use of rag or roughened work rolls for the last pass.
Additionally, an object of the invention is to simplify and speed up the change of work rolls in case of friction driven work rolls, which again favors a higher throughout.
SUI~1ARY OF THE INVENTION
These and other objects of the invention, which shall be hereafter apparent, are achieved by a reversing compact installation for cold rolling strip-shaped rolling material, with a reversing stand disposed between two reversible reels and a reel from which the strip to be used can be taken off .
More specifically, the present invention provides an installation for cold rolling a strip-shaped rolling material, the installation comprising two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which the strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand wherein both first and second reversing stands are adjustable in accordance with consecutive passes for performing the rolling process, wherein both first and second stands are simultaneously operated. The reversing stands each have drive means for directly driving work rolls, and the reversing stands each further comprise linearly displaceable means arranged on a side of a respective reversing stand opposite to a side on which the drive means is arranged for a quick change of the work rolls with which the work rolls provided with work rolls blocks in the cassette type of construction can be changed, whereby replacement of work rolls of different diameters and/or different roughness is possible.
The present invention also provides a method of coldrolling of a strip-shaped rolling material, the method comprising the steps of (a) providing a cold rolling installation including two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which a strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand, the first and second stands being adjustable in accordance with performed consecutive passes, operating simultaneously, and each having drive means for directly driving respective work rolls, (b) unwinding the strip-shaped rolling material from one of the two reversing reels, rolling the unwound strip-shaped rolling material in the first stand and then second stand, and winding rolled strip-shaped material 4a onto another of the two reversing reels, (c) reversing the direction of rotation of the respective work rolls in the first and second stands, (d) unwinding the strip-shaped rolling material from another of the two reversing reels, . rolling the strip-shaped rolling material in the second stand and then in the first stand, and winding the rolled strip-shaped rolling material onto the one of the reversing reels, (e) repeating steps (c) and (d) at least one more time, and changing, if necessary, in a last repeat of steps (c) and (d), the work rolls of one of the first and second stands, which is located downstream of the other of the first and second stands in a rolling direction, by work rolls having different roughness.
Usually hot rolled strips were cold rolled in several passes. Tn a multi-stand tandem train, these passes are rolled in the course of one single passage, while in a single stand reversing train, three to seven passages must be performed.
Only'two to three passages are however necessary in the two stand reversing train of the invention, so that a large throughput is achieved in the same time period compared to the single stand reversing trains. The installation proposed here 4b ~~.~.~~~'r is considerably more cost effective than two single-stand reversing trains. Also, the area requirement for the proposed two stand reversing train is smaller than in the case of two single stand reversing trains disposed, for instance, parallel to one another. It must be added that the two-stand reversing train can be arranged to lie in line with the strip treatment stations disposed upstream of the rolling train, whereas the two single stand reversing trains required for an output of approximately 700,000 tons must always be fed coils of hot rolled strips, through switches and displacement devices. It is also essential that, compared to the single-stand reversing train, a considerably higher strip tension level be achieved so that the reducing characteristic of a four to six-stand, tandem train can be achieved.
The invention will be better understood, by the Detailed Description of the Preferred Embodiment, in connection with the drawings of which Figure 1 is a schematic of a two-stand reversing train of the invention;
~m ~' .~. .~~ ~ .~ v ~\r Figure 2 is a cross-sectional through the two-stand reversing train in the invention; and Figures 3a and 3b depict a two°stand reversing train connected to a push type pickling installation.
DBTgIIZED DERCRIPTIOId OF THE PREFERRED EMBODIMENT
Referring now to the drawings, wherein lake numerals reflect like elements, throughout the several views, Figure 1 shows a cold rolling train 1 comprising two reversing stands 2, 3 - in this case with four-high stands having Work rolls 4, 4~;
5, 5~ and backup rolls 6, 6~; 7, 7°. The two reversing stands 2, 3 are disposed between two reels 8, 9, which can provide the necessary tension for the reeling or unreeling in reversing operation.
A reel 10 serves for the taking-off hot rolled strip for the first pass and possibly for coiling the hot rolled strip of an upstream located processing line. The reel 10 can operate with a lower tensile force, compared to the reels 8, 9.
The strip, which has to be taken-off the reel 10 during the reversing process in the course of which reels 8 and 9 are used, can be prepared to such an extent that following one rnnasess ~1.~.~~ ~'~
rolling process, the next strip can be rolled without any large delay.
Figure 2 depicts friction driven rolls in the work rolls 4, 4' (5, 5'). Drives 11, 11' operate through a gear box 12 and spindles 13, 13' upon the backup rolls 6, 6' (7, 7'). A
roll changing device 14 pushes, in the course of work roll changes, the new prepared set of work rolls from the changing table 15 into the stand 3. The work rolls present in the stand 2 are pushed herein upon the depositing or storage table 16.
This enables a rapid change of work rolls. For instance, three to five passes can be performed with one set of work rolls and the respectively last pass (for instance pass 4 or pass 6) can be performed after the work rolls have been replaced by a set of work rolls having a different rag or roughness.
Figures 3a and 3b show the two-stand reversing train downstream of a push type pickling installation 17. The reel can be seen in Figures 3a, which reels up the strip emerging from the pickling installation 17, while the previous strip is rolled in the cold rolling train 1 in a reversing manner.
Following thereupon, the reel 10 serves for unreeling the strip into the cold rolling train.
Figure 3b shows that the reel 10 is a reversing reel 10' which permits a simultaneous reeling and unreeling of the ~n~ssss 6 f K.$
strip emerging from the push type pickling installation and also permits directing of the same towards the cold rolling train 1.
While the preferred embodiment of the invention lass been depicted in detail, modifications and adaptations may be made thereto, without departing from the spirit and scope of the invention, as delineated in the following claims:
x~i~x~
A reel 10 serves for the taking-off hot rolled strip for the first pass and possibly for coiling the hot rolled strip of an upstream located processing line. The reel 10 can operate with a lower tensile force, compared to the reels 8, 9.
The strip, which has to be taken-off the reel 10 during the reversing process in the course of which reels 8 and 9 are used, can be prepared to such an extent that following one rnnasess ~1.~.~~ ~'~
rolling process, the next strip can be rolled without any large delay.
Figure 2 depicts friction driven rolls in the work rolls 4, 4' (5, 5'). Drives 11, 11' operate through a gear box 12 and spindles 13, 13' upon the backup rolls 6, 6' (7, 7'). A
roll changing device 14 pushes, in the course of work roll changes, the new prepared set of work rolls from the changing table 15 into the stand 3. The work rolls present in the stand 2 are pushed herein upon the depositing or storage table 16.
This enables a rapid change of work rolls. For instance, three to five passes can be performed with one set of work rolls and the respectively last pass (for instance pass 4 or pass 6) can be performed after the work rolls have been replaced by a set of work rolls having a different rag or roughness.
Figures 3a and 3b show the two-stand reversing train downstream of a push type pickling installation 17. The reel can be seen in Figures 3a, which reels up the strip emerging from the pickling installation 17, while the previous strip is rolled in the cold rolling train 1 in a reversing manner.
Following thereupon, the reel 10 serves for unreeling the strip into the cold rolling train.
Figure 3b shows that the reel 10 is a reversing reel 10' which permits a simultaneous reeling and unreeling of the ~n~ssss 6 f K.$
strip emerging from the push type pickling installation and also permits directing of the same towards the cold rolling train 1.
While the preferred embodiment of the invention lass been depicted in detail, modifications and adaptations may be made thereto, without departing from the spirit and scope of the invention, as delineated in the following claims:
x~i~x~
Claims (4)
1. An installation for cold rolling a strip-shaped rolling material, the installation comprising:
two reversing reels;
a first reversing stand disposed between the two reversing reels;
a reel from which the strip to be used can be taken off; and a second reversing stand provided in the rolling line of the first reversing stand wherein both first and second reversing stands are adjustable in accordance with consecutive passes for performing the rolling process;
wherein both first and second stands are simultaneously operated;
wherein the reversing stands each have drive means for directly driving work rolls; and wherein the reversing stands each further comprise linearly displaceable means arranged on a side of a respective reversing stand opposite to a side on which the drive means is arranged for a quick change of the work rolls with which the work rolls provided with work rolls blocks in the cassette type of construction can be changed, whereby replacement of work rolls of different diameters and/or different roughness is possible.
two reversing reels;
a first reversing stand disposed between the two reversing reels;
a reel from which the strip to be used can be taken off; and a second reversing stand provided in the rolling line of the first reversing stand wherein both first and second reversing stands are adjustable in accordance with consecutive passes for performing the rolling process;
wherein both first and second stands are simultaneously operated;
wherein the reversing stands each have drive means for directly driving work rolls; and wherein the reversing stands each further comprise linearly displaceable means arranged on a side of a respective reversing stand opposite to a side on which the drive means is arranged for a quick change of the work rolls with which the work rolls provided with work rolls blocks in the cassette type of construction can be changed, whereby replacement of work rolls of different diameters and/or different roughness is possible.
2. The installation of claim 1, further comprising a push-type pickling installation disposed upstream of the reel from which the strip to be used can be taken off.
3. The installation of claim 1 or 2, wherein the reel, from which the strip to be used can be taken off, is a reversing reel.
4. A method of coldrolling of a strip-shaped rolling material, the method comprising the steps of:
(a) providing a cold rolling installation including two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which a strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand, the first and second stands being adjustable in accordance with performed consecutive passes, operating simultaneously, and each having drive means for directly driving respective work rolls;
(b) unwinding the strip-shaped rolling material from one of the two reversing reels, rolling the unwound strip-shaped rolling material in the first stand and then second stand, and winding rolled strip-shaped material onto another of the two reversing reels;
(c) reversing the direction of rotation of the respective work rolls in the first and second stands;
(d) unwinding the strip-shaped rolling material from another of the two reversing reels, rolling the strip-shaped rolling material in the second stand and then in the first stand, and winding the rolled strip-shaped rolling material onto the one of the reversing reels;
(e) repeating steps (c) and (d) at least one more time; and changing, if necessary, in a last repeat of steps (c) and (d), the work rolls of one of the first and second stands, which is located downstream of the other of the first and second stands in a rolling direction, by work rolls having different roughness.
(a) providing a cold rolling installation including two reversing reels, a first reversing stand disposed between the two reversing reels, a reel from which a strip to be used can be taken off, and a second reversing stand provided in the rolling line of the first reversing stand, the first and second stands being adjustable in accordance with performed consecutive passes, operating simultaneously, and each having drive means for directly driving respective work rolls;
(b) unwinding the strip-shaped rolling material from one of the two reversing reels, rolling the unwound strip-shaped rolling material in the first stand and then second stand, and winding rolled strip-shaped material onto another of the two reversing reels;
(c) reversing the direction of rotation of the respective work rolls in the first and second stands;
(d) unwinding the strip-shaped rolling material from another of the two reversing reels, rolling the strip-shaped rolling material in the second stand and then in the first stand, and winding the rolled strip-shaped rolling material onto the one of the reversing reels;
(e) repeating steps (c) and (d) at least one more time; and changing, if necessary, in a last repeat of steps (c) and (d), the work rolls of one of the first and second stands, which is located downstream of the other of the first and second stands in a rolling direction, by work rolls having different roughness.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4310063.5 | 1993-03-27 | ||
| DE4310063A DE4310063A1 (en) | 1993-03-27 | 1993-03-27 | Reversing compact system for the cold rolling of strip-shaped rolling stock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2119957A1 CA2119957A1 (en) | 1994-09-28 |
| CA2119957C true CA2119957C (en) | 2003-08-19 |
Family
ID=6484068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002119957A Expired - Fee Related CA2119957C (en) | 1993-03-27 | 1994-03-25 | Reversing compact installation for cold rolling strip-shaped rolling material |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0618018B1 (en) |
| JP (1) | JP3322984B2 (en) |
| KR (1) | KR100260599B1 (en) |
| CN (1) | CN1078111C (en) |
| AT (1) | ATE203936T1 (en) |
| CA (1) | CA2119957C (en) |
| DE (2) | DE4310063A1 (en) |
| ES (1) | ES2163413T3 (en) |
| FI (1) | FI941393A (en) |
| RU (1) | RU2143955C1 (en) |
| TW (1) | TW279140B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5706690A (en) * | 1995-03-02 | 1998-01-13 | Tippins Incorporated | Twin stand cold reversing mill |
| IT1295555B1 (en) * | 1997-05-16 | 1999-05-13 | Danieli Off Mecc | TWO-CAGE TANDEM FOR LAMINATION LINE |
| DE19905286A1 (en) * | 1999-02-03 | 2000-08-10 | Sms Demag Ag | Working method and system for flexible and economical pickling and cold rolling of metal strips |
| DE10031728C1 (en) * | 2000-06-29 | 2002-01-10 | Aluminium Norf Gmbh | Belt processing device |
| FR2895689B1 (en) * | 2006-01-04 | 2008-02-22 | Vai Clecim Soc Par Actions Sim | RAPID REPLACEMENT METHOD FOR CYLINDERS AND ROLLING PLANT THEREFOR |
| US9156070B2 (en) | 2006-11-20 | 2015-10-13 | Primetals Technologies Japan, Ltd. | Cold rolled material manufacturing equipment and cold rolling method |
| DE102008009916A1 (en) | 2008-02-15 | 2009-11-12 | Sms Siemag Aktiengesellschaft | Rolling mill for rolling strip-shaped rolling stock |
| EP2259881B1 (en) * | 2008-04-11 | 2013-05-29 | Siemens Vai Metals Technologies SAS | Plant for the reversible rolling of steel strip |
| DE102008049180A1 (en) * | 2008-09-26 | 2010-04-01 | Sms Siemag Aktiengesellschaft | Rolling mill for rolling strip-shaped rolling stock |
| DE102013005734B4 (en) * | 2013-04-05 | 2016-05-04 | Sms Group Gmbh | Plant and method for producing metallic elongated semi-finished products |
| EP3300809A1 (en) * | 2016-09-28 | 2018-04-04 | Primetals Technologies France SAS | Facility and method for levelling a metal product |
| CN108500060B (en) * | 2018-03-27 | 2024-04-09 | 中冶陕压重工设备有限公司 | Rolling process arrangement and rolling method of zirconium plate and strip cold rolling unit |
| CN112969540B (en) * | 2018-11-23 | 2023-11-03 | 考克利尔维修工程有限责任公司 | Flexible cold rolling mill and conversion method thereof |
| DE102022204368A1 (en) | 2022-05-03 | 2023-11-09 | Sms Group Gmbh | Rolling plant and method for rolling rolled strip |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1964503A (en) * | 1929-08-21 | 1934-06-26 | United Eng Foundry Co | Metal rolling machine |
| SE383268B (en) * | 1972-09-11 | 1976-03-08 | Morgaardshammar Ab | COMPACT KALLVALLSVERK |
| JPS5659507A (en) * | 1979-10-22 | 1981-05-23 | Nippon Steel Corp | Cold rolling method for one-way electrical sheet |
-
1993
- 1993-03-27 DE DE4310063A patent/DE4310063A1/en not_active Withdrawn
-
1994
- 1994-03-04 TW TW083101884A patent/TW279140B/zh active
- 1994-03-11 KR KR1019940004840A patent/KR100260599B1/en not_active IP Right Cessation
- 1994-03-23 EP EP94104541A patent/EP0618018B1/en not_active Revoked
- 1994-03-23 ES ES94104541T patent/ES2163413T3/en not_active Expired - Lifetime
- 1994-03-23 AT AT94104541T patent/ATE203936T1/en not_active IP Right Cessation
- 1994-03-23 DE DE59409815T patent/DE59409815D1/en not_active Revoked
- 1994-03-25 JP JP05602994A patent/JP3322984B2/en not_active Ceased
- 1994-03-25 CA CA002119957A patent/CA2119957C/en not_active Expired - Fee Related
- 1994-03-25 FI FI941393A patent/FI941393A/en not_active Application Discontinuation
- 1994-03-25 RU RU94009961A patent/RU2143955C1/en not_active IP Right Cessation
- 1994-03-26 CN CN94103440A patent/CN1078111C/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0618018B1 (en) | 2001-08-08 |
| CA2119957A1 (en) | 1994-09-28 |
| JP3322984B2 (en) | 2002-09-09 |
| KR940021140A (en) | 1994-10-17 |
| EP0618018A1 (en) | 1994-10-05 |
| FI941393A (en) | 1994-09-28 |
| ES2163413T3 (en) | 2002-02-01 |
| DE59409815D1 (en) | 2001-09-13 |
| KR100260599B1 (en) | 2000-07-01 |
| JPH06297005A (en) | 1994-10-25 |
| DE4310063A1 (en) | 1994-09-29 |
| CN1078111C (en) | 2002-01-23 |
| TW279140B (en) | 1996-06-21 |
| ATE203936T1 (en) | 2001-08-15 |
| CN1096719A (en) | 1994-12-28 |
| FI941393A0 (en) | 1994-03-25 |
| RU2143955C1 (en) | 2000-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |