CN101522326B - Rolling mill and method for controlling a rolling mill - Google Patents
Rolling mill and method for controlling a rolling mill Download PDFInfo
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- CN101522326B CN101522326B CN2007800379247A CN200780037924A CN101522326B CN 101522326 B CN101522326 B CN 101522326B CN 2007800379247 A CN2007800379247 A CN 2007800379247A CN 200780037924 A CN200780037924 A CN 200780037924A CN 101522326 B CN101522326 B CN 101522326B
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- metal tape
- rolling equipment
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- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
- B21B39/08—Braking or tensioning arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
Abstract
The invention relates to a rolling mill, in particular, a cold strip tandem rolling mill (1), for producing a metal strip (100), with a number of stands (220, 260; 230; 240;...; 250) arranged in a tanThe invention relates to a rolling mill, in particular, a cold strip tandem rolling mill (1), for producing a metal strip (100), with a number of stands (220, 260; 230; 240;...; 250) arranged in a tandem path (20), wherein, in a direction of production (P) of the metal strip (100), a first stand (220) is designed as driving stand (220, 260) and serves as inlet for a section (25) of the tandem pathdem path (20), wherein, in a direction of production (P) of the metal strip (100), a first stand (220) is designed as driving stand (220, 260) and serves as inlet for a section (25) of the tandem path (20), in which a primary thickness reduction of the metal strip (100) occurs, and by corresponding control of the driving stand (220, 260), an increase in the mechanical inlet tension of the metal st(20), in which a primary thickness reduction of the metal strip (100) occurs, and by corresponding control of the driving stand (220, 260), an increase in the mechanical inlet tension of the metal strip (100) can be achieved. The invention further relates to a method for controlling a rolling mill, in particular, a cold strip tandem rolling mill (1), for producing a metal strip (100), wherein, inrip (100) can be achieved. The invention further relates to a method for controlling a rolling mill, in particular, a cold strip tandem rolling mill (1), for producing a metal strip (100), wherein, in a production direction (P) of the metal strip (100), a first stand (220) is controlled as driving stand (220, 260), said driving stand (220, 260) achieving a significant increase in the mechanical ina production direction (P) of the metal strip (100), a first stand (220) is controlled as driving stand (220, 260), said driving stand (220, 260) achieving a significant increase in the mechanical inlet tension on the metal strip (100) and a significant thickness reduction of the metal strip (100).let tension on the metal strip (100) and a significant thickness reduction of the metal strip (100).
Description
Technical field
The present invention relates to a kind of rolling equipment, especially tandem cold-strip rolling equipment, and the method that is used to control this rolling equipment.The invention still further relates to the application of first frame of rolling equipment, especially tandem cold-strip rolling equipment.
Background technology
In rolling equipment, especially in tandem cold-strip rolling equipment, purpose during distribution passage attenuate amount is, except reason distribution passage attenuate amount owing to technology, also can be used to make this production aspect that is distributed in to make full use of best corresponding to the device structure situation distribution passage attenuate amount of single rolling machine frame.
In the tandem mill unit that is interrupted, not only use the tropocal wood that vertically separates as feed material, and the band of use batch annealing technology, in this technology because first frame that the restriction of process conditions with small tensile force of belt coiling coiled material, the tandem mill unit therefore may occur can only be brought the rolling efficiency of pettiness.
For make total passage attenuate amount in rolling equipment corresponding to process requirements, perhaps also be distributed on first rolling machine frame in order to optimize total passage attenuate amount, need make this first rolling machine frame that desired rolling power can be provided.Can improve the rolling power of this rolling machine frame by dual mode, promptly by improving roll-force and/or by improving the tension in the metal steel band.
Therefore can improve roll-force by the piston area that improves hydraulic control system pressure and/or increasing master cylinder.These methods often are restricted for existing equipment or can not have a mind to the free burial ground for the destitute and improve roll-force.For example make operating pressure near the pressure limit that allows and therefore no longer can improve for this reason, perhaps owing to the reason of installing space can not the oversize piston area, promptly new master cylinder is installed.Improve roll-force in addition and may cause damaging, make existing framework pillar no longer can bear additional active force.
Upwards also can realize improving the tensile force of belt of approaching side at producer by S roller (stretcher), pulling force stretcher or multiple roll stretcher or two rolling machine frame are installed in the first frame front.These methods equally often are restricted in existing equipment, and they limit as the metal tape that oils by structural situation (space requirement) or by technological parameter.
JP 57 118812 A provide a kind of thickness of strips that is used for rolling equipment and regulate or the productivity ratio adjusting, wherein attempt to import the thickness error of side by the compensation of first frame, and correspondingly control other frame.For this reason, determine to import the thickness error of side in the first frame front.After thickness reduces in first frame, obtain the thickness error of outlet side.This error is the yardstick that compensates the degree of the thickness error that imports side.The frame of following then according to the thickness error control of the outlet side of first frame.Also as effective first rolling frame, realize that by it significant thickness reduces in this first frame.
JP 54 071759 A disclose a kind of tensile force of belt that is used for rolling equipment and have regulated, and wherein first frame that makes progress at producer by rolling equipment realizes that the significant thickness of metal tape reduces.Therefore not only first gantry configuration becomes drive chassis, and second frame is not configured to the effectively first rolling frame yet.
Summary of the invention
The objective of the invention is, provide a kind of improved rolling equipment, especially improved tandem cold-strip rolling equipment, and the improved method that is used to control this rolling equipment.Especially this rolling equipment has the space requirement of pettiness and has improved tape running controllability.Purpose of the present invention is still reequiped existing rolling equipment according to the present invention, and especially existing tandem cold-strip rolling equipment makes it can pass through according to control method operation of the present invention thus.
Rolling equipment must obtain viewpoint widely thus covering big product scope aspect the strength of materials and the total rolling power, can realize the distribution of rolling power on single rolling machine frame according to these viewpoints.Generally provide big rolling power for use, because single rolling machine frame is configured to maximum distortion in the single rolling machine frame the inside of rolling equipment.
According to the present invention, preferably for the little required following utilization of total roll compacting rate for the rolling power that uses or install, make the single attenuate in rolling machine frame be distributed on the frame like this, make the milling train unit the producer of metal tape upwards first frame (importing frame) bear the function of drive chassis, be used for improving and import pulling force.According to the present invention, drive chassis is mainly used in and improves metal tape and import pulling force, and the distribution of the total roll compacting rate that makes metal tape by each passage attenuate amount is distributed on the residue frame of rolling equipment.
If for example five rack rolling equipments total roll compacting rate that will realize is 10% of a metal tape thickness, then for the linear distribution of total roll compacting rate on all the other four rolling machine frames of milling train unit, each rolling machine frame is only born about 2.5% roll compacting with approximately distributing.That is, replace 2% roll compacting separately in 5 in turn rolling, according to the present invention total roll compacting rate is distributed on four rolling machine frames of following drive chassis, they have only born 0.5% roll compacting respectively more.According to the present invention, promptly rolling power transfers to distribute along producer on the rolling machine frame of following importing/drive chassis.
According to the present invention, improve the importing tensile force of belt by making full use of existing rolling machine frame, save the additional complete set of equipments that improves the tensile force of belt function that has, and also improved the band guiding.By the guiding of improved band, owing to make pulling force relative even with the degree of eccentricity decoupling of the coiled material (band) of uncoiling machine, and then the controllability and the stability of improvement tape running.
Have a plurality of rolling machine frames according to rolling equipment of the present invention in the tandem mill unit, one of them rolling machine frame at roll compacting is configured to have the complete set of equipments that improves the tensile force of belt function, promptly so-called drive chassis.
The present invention proposes the control method of rolling equipment in addition, and wherein such controlled rolling frame makes it play the effect with the complete set of equipments that improves the tensile force of belt function for metal tape.
Make following configuration of rolling equipment or following driving according to the present invention, although and can begin the roll compacting metal tape by described drive chassis, abandon substantially rolling, and the importing pulling force of the machinery by described drive chassis raising metal tape.
By the suitable operation of described drive chassis, improved the importing pulling force of the machinery of metal tape.This for example is a kind of generator-type operation, at this roller of drive chassis is not driven.Can make the following operation of roller of drive chassis in addition, promptly the working roll of drive chassis and/or backing roll and metal tape producer are to oppositely being driven.Can drive work and/or backing roll so in addition, promptly they make metal tape upwards travel forward at producer, but make the driving of this driving driving less than the effective rolling rolling machine frame of upwards following at producer.Not producing slippage between metal tape and the working roll and between the backing roll of drive chassis and working roll,, also make slippage as much as possible little at this if perhaps can not realize this point.
In an embodiment of the present invention, the first effective rolling rolling machine frame of rolling equipment is second rolling machine frame that makes progress at the metal tape producer.Can realize that by this effective rolling rolling machine frame the main thickness first time of metal tape reduces.That is, in the drive chassis that the producer of metal tape makes progress, first frame of rolling equipment, also first frame of tandem rolling equipment preferably.
Be characterised in that according to rolling equipment of the present invention this rolling equipment does not have the S roller arrangement, do not have pulling force stretcher or multiple roll stretcher, and also be not prepended to two rolling machine frames of tandem mill unit.
Therefore can correspondingly reequip the rolling equipment that has existed according to the present invention.Realize thus according to this point of the present invention, promptly remove existing S roller arrangement of rolling equipment or pulling force stretcher or multiple roll stretcher or two rolling machine frame, and first frame of tandem mill unit is moved as having the drive chassis that improves the tensile force of belt function.
The invention still further relates to (repacking) milling train, (repacking) cold-rolling mill especially, it has (repacking) rolling equipment, preferred (repacking) tandem cold-strip rolling equipment.This milling train preferably only has unique rolling machine frame of tandem mill unit as having the complete set of equipments that improves the tensile force of belt function in the importing side, this rolling machine frame correspondingly moves as having the drive chassis that improves the tensile force of belt function.That is, do not have the S roller arrangement, do not have pulling force stretcher or multiple roll stretcher, and do not have two rolling machine frames yet according to milling train of the present invention.
Provide other preferred embodiment of the present invention by all the other dependent claims.
Description of drawings
Explain the present invention in detail by means of the embodiment in the accompanying drawing below.Accompanying drawing:
Fig. 1 illustrates according to prior art and is used for the tandem cold-strip rolling equipment of operation continuously,
Fig. 2 illustrates according to the cold-strip rolling equipment of operation continuously that is used for equally of the present invention.
The specific embodiment
The following examples relate to tandem cold-strip rolling equipment, have metal tape introduction segment 10 that constitutes according to the present invention and the tandem mill unit of setting up according to the present invention 20.Tandem mill unit 20 is compared with prior art differently driven or control at this, this has influence on the metal tape introduction segment 10 of tandem cold-strip rolling equipment 1.That is, need not to have the complete set of equipments 260 (Fig. 1) that improves the tensile force of belt function in metal tape introduction segment 10 the insides.But the present invention is not limited to tandem cold-strip rolling equipment 1, and relates to general tandem mill unit 20.Be meant the rolling machine frame device at this tandem mill unit 20, they are connected on P at the producer of metal tape 100 by at least two, rolling machine frame 220,230,240,250 formations of preferred directly series connection.That is, the present invention also can be applied to the milling train unit of two-shipper frame.
Fig. 1 illustrates two in three basic segments of common tandem cold-strip rolling equipment 1, promptly metal tape introduction segment 10 and at metal tape 100 producers to the tandem mill unit 20 that is connected on the P on this metal tape introduction segment 10.Also have metal tape in tandem cold-strip rolling equipment 1 the inside and discharge section (not shown in the accompanying drawings), it for example has the coiling machine that is used for reversible operation or other and is connected complete set of equipments on the tandem cold-strip rolling equipment 1, and is for example smooth/leveling milling train unit.
But the metal tape introduction segment 10 of tandem cold-strip rolling equipment 1 has and is positioned at coiled material 110 on the uncoiler 270 and debatching replaceably, in the tandem mill unit 20 of the metal tape 100 of this coiled material by having the complete set of equipments 260 that improves the tensile force of belt function and slewing rollers 210 and import to tandem cold-strip rolling equipment 1 position 25 of effectively rolling rolling equipment 1 (here corresponding to).In order to set up or improve the importing pulling force of the machinery of metal tape 100 by having the complete set of equipments 260 that improves the tensile force of belt function, make this complete set of equipments be configured to S roller or S roller arrangement (stretcher), pulling force stretcher or multiple roll stretcher, or be configured to so-called driver (two rolling machine frame).
Stretcher unit guiding is aligning metal tape 100 also, and keep its inner tension, its measure be for example be arranged on metal tape 100 tape runnings top and adjustable roller utilize mechanical actuation device from initial position drops to operating position on the belt surface.The steel band of alternating bending is from leaving the stretcher unit on the height that passes through line (not shown in the accompanying drawings) at rolling machine frame on the nearest working roll of the roll gap of the rolling machine frame 220 of subordinate in the operating position of multiple roll stretcher unit.In the prior art embodiment shown in Fig. 1, have the complete set of equipments 260 that improves tensile force of belt and constitute by S roller arrangement (stretcher).
Described tandem mill unit 20 has a plurality of rolling machine frames 220,230,240,250, and they all play the function of effectively rolling rolling machine frame 220,230,240,250.That is, when metal band rolling 200, the main thickness that all carries out metal tape 100 for all rolling machine frames 220,230,240,250 of rolling equipment 1 reduces.That is, first frame 220 of tandem mill unit 20 (be also referred to as and import frame) also is simultaneously effective first rolling rolling machine frame 230.
For in the invention shown in Fig. 2, control tandem mill unit 20 in another way, it can be corresponding to the structure shown in the prior art from structure.Obtain metal tape introduction segment 10 thus, and obtain heteroid according to rolling equipment 1 of the present invention, especially heteroid thus according to tandem cold-strip rolling equipment 1 of the present invention according to variation of the present invention.
In according to tandem rolling equipment 1 of the present invention, replace the additional complete set of equipments 260 that improves the tensile force of belt function that has, at the producer of metal tape 100 on P, the effective rolling position 25 (section 25 of tandem mill unit 20 in the reality of tandem mill unit 20, the main thickness that carries out metal tape 100 in this section reduces) before, the function of first frame, the 220 effect drivers of tandem mill unit 20 is used for being implemented in metal tape 100 and sets up mechanical pulling force.By can be according to the present invention at tandem mill unit 20 set up mechanical pulling force in first frame, 220 the insides of metal tape 100 producers on P, need not to have the complete set of equipments 260 that improves the tensile force of belt function, it for example by shown in the S roller arrangement among Fig. 1 like that.According to the present invention, 220 of first frames change on its function, and making in tandem mill unit 20 in second frame 230 of producer on P thus is effective first rolling frames 230.
Have according to metal tape introduction segment 10 of the present invention according to tandem cold-strip rolling equipment 1 of the present invention, it has uncoiler 270 and slewing rollers 210.Have a plurality of rolling machine frames 220,260,230,240,250 according to tandem mill unit 20 of the present invention, wherein only be arranged on the rolling machine frame the 230,240, the 250th of first frame, 220 back, effectively rolling rolling machine frame.First frame 220 of producer on P at metal tape 100 is constructed with the complete set of equipments 260 that improves the tensile force of belt function.Below this first frame 220 is called drive chassis 260, it no longer is effectively rolling now, but is mainly used in the tensile force of belt of the machinery that improves metal tape 100.But can make this drive chassis 260 as 220,260 operations of effectively rolling rolling machine frame, this is especially for the reversible operation (also referring to following) of reversible rolling equipment or to reduce for the very big thickness of required metal tape 100 be favourable.
In order in drive chassis 260, to realize improving the function of tensile force of belt, roller by the drive chassis 260 that preferably is made of the four-roller type rolling machine frame applies force on the metal tape 100, should apply effect from the surface that is basically perpendicular to metal tape 100 under static situation (side on plane).In service at rolling equipment 1, this active force that is applied on the metal tape 100 is not enough to stay main plastic deformation in metal tape 100.The major part distortion of the metal tape 100 that causes by described drive chassis 260 is elastic propertys.
For drive chassis 260 being given the function that improves tensile force of belt, can use three operational modes of drive chassis 260.This point is represented by imaginary point in the drive chassis among Fig. 2 260 or solid arrow.
For example can make the operation of drive chassis 260 generator-type ground.Can make all of drive chassis 260 or only one or more roller generator-type ground operation at this.Other roller for example can move to the right or operation ground driving left.But preferably make all roller generator-type ground runnings of drive chassis 260 at this.In metal tape 100, have thus with producer and be used in the metal tape 100 to the reverse masterpiece of P, set up tension in drive chassis 260 back at producer in metal tape 100 the insides on P thus, it can make in second frame (the effectively first rolling frame) 230 of following and the frame 240,250 that continues to follow and reach roll compacting rate efficiently.
Can move or make to operation drive chassis 260 operations to the right left in motor-type ground in addition.At the working roll that this moves to the right or operation will relate to drive chassis 260 left.The backing roll of drive chassis 260 is driven or the generator-type operation at spinning up of respective opposite.Therefore, on the one hand the working roll of drive chassis 260 is moved like this, make them in " roll gap " position, oppositely rotate (tangential component) to P with producer.In service at rolling equipment 1, these working rolls are rotation in the opposite direction certainly, because the active force of metal tape 100 on working roll is greater than the driving force of working roll itself.That is, working roll rotates with the respective roller of the effective rolling machine frame 230,240,250 of following on P at producer with possible subordinate backing roll the samely.
The working roll of drive chassis 260 is driven in identical the spinning up of corresponding working roll with the effective rolling rolling machine frame 230,240,250 of following.But preferred at this, make them to drive than effective rolling rolling machine frame 230,240, the 250 littler power of following, be used to give the tension of metal tape 100 inherences.Correspondingly can make the backing roll operation of drive chassis 260.Still can only correspondingly drive a part of roller at this.Other roller for example can the operation of generator-type ground.
Be noted that between the roller of drive chassis 260 and the working roll and the metal tape 100 of drive chassis 260 have small as far as possible slippage, preferably do not have slippage at all.Promptly, importing pulling force for the machinery that improves metal tape 100, especially like this realize the control of drive chassis 260, make the excircle speed of each working roll of drive chassis 260 be equivalent to the point-to-point speed of metal tape 100 substantially, and two velocities are overlapped in " roll gap " of drive chassis 260.This point also is applicable to the backing roll of drive chassis 260 similarly.In an embodiment of the present invention, the slippage between the working roll of metal tape 100 and drive chassis 260 is about 0.1% to 0.75%, is preferably 1% to 2%, especially is 3% to 5%, and is preferably 6% to 10% especially.That is, the excircle speed of the working roll of drive chassis 260 preferably is slower than the speed of metal tape 100 with these percentages.But do not produce slippage in a preferred embodiment of the invention.
It is contemplated that in addition the roller in drive chassis 260 is with the method for operation of any natural way driving or the method for operation of generator-type.For example can only make the backing roll operation of drive chassis 260, and make its working roll generator-type ground operation.Also can only make those rollers of drive chassis 260, and make the roller generator-type ground operation of opposite side in the operation of metal tape 100 1 sides.
The present invention can be applied to all rolling equipments 1.This is not only applicable to the new rolling equipment that will design 1, and is applicable to the rolling equipment 1 that has existed, and they are reequiped according to the present invention.Be applicable to the method that makes rolling equipment 1 operation similarly.In the rolling equipment 1 of repacking, dismounting has the complete set of equipments 260 that improves the tensile force of belt function, and the rolling machine frame of tandem mill unit 20 is moved as drive chassis 260 according to the present invention.Make the rolling equipment 1 of repacking on its size, become shorter thus, for example other complete set of equipments can be installed in rolling equipment 1 or milling train 1 thus.
The present invention not only can be used for the rolling equipment 1 (Fig. 2) of operation continuously in addition, and can be used for the rolling equipment 1 of reversible operation (in only schematically expression of Fig. 2).
Reversible rolling equipment 1 still has slewing rollers 210 and coiling machine, the coiled material 110 of can reeling thereon on itself and metal tape introduction segment 10 opposed rearward end.
Rolling equipment 1 for operation in reversible operation (parantheses of Fig. 2 is represented), preferably after metal tape 100 passes tandem mill unit 20 for the first time, the last frame 250 that makes tandem mill unit 20 for the metal tape 100 that passes for the second time with control the samely or move according to drive chassis 260 of the present invention.When passing for the first time, the first frame 220 last effective rolling rolling machine frame 250 of preferred controlled conduct when passing metal tape 100 for the second time that works as drive chassis 260.When passing for the third time, make this point more conversely.Promptly, in reversible rolling equipment 1, first frame 220 not only, and last frame 250 (label symbol is used for passing the first time of metal tape 100) is respectively as drive chassis 260 operation or use, and passes also as 250 operations of last effective rolling frame or use for the follow-up of metal tape 100.
But but first frame (220/250) and last frame (250/220) are alternately moved respectively as drive chassis 260 (first frame) for reverse means, do not control simultaneously corresponding other last frame or they are moved together, and not to its configuration correlation function.
The tandem cold-strip rolling equipment 1 that the present invention especially can be used for having existed, they are in the most of bandwidth that covers product scope aspect total roll compacting rate, especially can use in these rolling equipments 1 in other words, promptly it has rolling power allowance (also for the essential roll compacting of maximum) in single rolling machine frame.Use the first effectively rolling rolling machine frame 220, (250) as drive chassis 260 thus, it does not carry out the mainly rolling of metal tape 100.The passage attenuate amount that may reach that loses thus is distributed on the remaining rolling machine frame (220), 230,240,250 of rolling equipment 1.By using first frame 220, (250) as drive chassis 260 since with uncoiler 270 decouplings, realized the stability and the uniformity of tape running; Especially realize the band guiding of improvement for the wedge shape narrow strip; And improve the tensile force of belt that imports.(relating to reversible operation) according to reversible rolling equipment 1 of the present invention in parenthetic label symbol.
According to the present invention, can compensate the passage attenuate amount that may reach that in tandem mill unit 20, is lost by the tensile force of belt that improves metal tape 100, can realize reducing according to tandem mill unit 20 of the present invention or according to rolling equipment 1 of the present invention thus as tandem mill unit 20 identical thickness according to prior art owing to drive chassis 260.Especially advantageously the length of entire equipment is shorter at this, has complete set of equipments 260 (see figure 1)s that improve the tensile force of belt function because can save.This point also provides maintenance cost still less except littler energy consumption.
According to the present invention, needn't necessarily make first frame 220 of producer on P after metal tape 100 imports to tandem mill unit 20, be configured or control as drive chassis 260 at metal tape 100.The present invention is applied on another or a plurality of rolling machine frame 220,230,240,250 of rolling equipment 1.Therefore for example especially for relatively long production line 20, can be except first frame 220, make at producer on P, also to constitute or control as drive chassis 260 at the rolling machine frame 230,240,250 that is provided with more later.
The present invention is applied at producer on rolling machine frame last on the P 250, with the tensile force of belt of the metal tape 100 before improving.Last rolling machine frame 250,260 is driven on P at producer, and the excircle speed of the working roll of wherein last rolling machine frame 250,260 (drive chassis 260) is a little more than the speed of metal tape 100; In other words, last frame 250,260 is with than being driven at its rolling machine frame that is provided with previously 220,230,240 higher driving powers on P at producer.That is, also can utilize above-mentioned slippery difference conversely; The excircle speed of the working roll of last rolling machine frame 250,260 also preferably is higher than the speed of metal tape 100 in " roll gap " of last rolling machine frame 250,260 with above-mentioned percentage.
In the view of Fig. 2, the rolling machine frame 220,230,240,250,260 of tandem mill unit 20 is configured to four-roll rack.But the present invention is not limited to four-roll rack, but relates to all versions of effectively rolling rolling machine frame 220,230,240,250,260.Therefore the present invention also can for example be applied to effectively rolling two rollers or six-roll type rolling machine frame.
Claims (20)
1. be used to make the rolling equipment of metal tape (100), have a plurality of frames (220,260 that are arranged on tandem mill unit (20) lining; 230; 240; ...; 250), wherein
At the producer of metal tape (100) on (P), first frame (220) is configured to drive chassis (220,260) and as the inlet of the section (25) of the thickness that mainly reduces metal tape (100) therein of tandem mill unit (20), and by correspondingly controlling described drive chassis (220,260), can realize improving the importing pulling force of the machinery of metal tape (100), wherein
On (P), second gantry configuration becomes effectively rolling first rolling machine frame (230), can realize that by this rolling machine frame the main thickness first time of metal tape (100) reduces at the producer of metal tape (100).
2. rolling equipment as claimed in claim 1 wherein can realize that by described drive chassis (220,260) thickness of metal tape (100) reduces, but this is essentially the importing pulling force of the machinery that helps improving metal tape (100) and is abandoned.
3. rolling equipment as claimed in claim 1 or 2, wherein drive chassis (220,260) or its backing roll and/or working roll when metal band rolling (100) at least in part:
-can on (P), be driven at the producer of metal tape (100);
-can be driven to generator-type; And/or
-can oppositely be driven to (P) with producer.
4. rolling equipment as claimed in claim 3, wherein drive chassis (220,260) can be moved like this, makes not produce slippage substantially between the working roll of drive chassis (220,260) and metal tape (100).
5. rolling equipment as claimed in claim 4, wherein said rolling equipment (1) are gone up behind effectively rolling first rolling machine frame (230) to (P) at the producer of metal tape (100) has the effective rolling rolling machine frame (240 that at least one is followed; ...; 250).
6. rolling equipment as claimed in claim 1 or 2, wherein said rolling equipment (1) are not prepended to complete set of equipments (260) tandem mill unit (20), that have the effect of raising tensile force of belt.
7. rolling equipment as claimed in claim 1 or 2, wherein said rolling equipment (1) the producer of metal tape (100) to (P) oppositely on directly before in drive chassis (220,260), except slewing rollers (210), have uncoiler (270).
8. rolling equipment as claimed in claim 1 or 2, the last frame (250) of wherein said rolling equipment (1) is configured to drive chassis (250,260).
9. rolling equipment as claimed in claim 8, wherein for the reversible operation of rolling equipment (1), described first frame (220) and last frame (250) can be alternately as drive chassis (220,260; 250,260) with as effective rolling rolling machine frame (250,230; 220,230) operation.
10. Gai Zhuan rolling equipment, the rolling equipment (1) of wherein realizing repacking is gone up to (P) at the producer of metal tape (100) does not has the complete set of equipments (260) that improves the tensile force of belt function in tandem mill unit (20) front, and the rolling equipment (1) of repacking as in the claim 1 to 5 each or 7 to 9 in construct as described in each.
11. tandem cold-strip rolling equipment, wherein said tandem cold-strip rolling equipment is configured to as each described rolling equipment in the claim 1 to 10.
12. milling train or milling train unit have as each described rolling equipment (1) in the claim 1 to 11.
13. be used for the method for controlled rolling equipment, be used to make metal tape (100), wherein
At the producer of metal tape (100) on (P), first frame (220) is controlled as drive chassis (220,260), wherein by described drive chassis (220,260), on the one hand improve the importing pulling force of the machinery of metal tape (100), and the main thickness of not carrying out metal tape (100) on the other hand reduces, wherein
Second frame of producer on (P) at metal tape (100) is configured to effectively rolling first rolling machine frame (230), and the main thickness first time that carries out metal tape (100) by this rolling machine frame reduces.
14. method as claimed in claim 13, wherein drive chassis (220,260) or its backing roll and/or working roll when metal band rolling (100) at least in part:
-being driven on (P) at the producer of metal tape (100), wherein this driving is less than the frame (230 of following on (P) at producer; 240; ...; 250) driving;
Be driven to-generator-type; And/or
-oppositely be driven to (P) with producer.
15. as claim 13 or 14 described methods, wherein on (P), make drive chassis (220,260) operation like this, make between the working roll of drive chassis (220,260) and metal tape (100), not produce slippage substantially at the producer of metal tape (100).
16. as claim 13 or 14 described methods, the last frame (250) of wherein said rolling equipment (1) is configured to drive chassis (250,260).
17. method as claimed in claim 16, for the reversible operation of rolling equipment (1), wherein first frame (220) and last frame (250) are alternately as drive chassis (220,260; 250,260) with as effective rolling rolling machine frame (250,230; 220,230) operation.
18. first frame (220 of producer on (P) at metal tape (100) of rolling equipment (1); (250)) as the drive chassis (220,260 of rolling equipment (1); (250,260)) application, wherein by described drive chassis (220,260; (250,260)) improve the importing pulling force of the machinery of metal tape (100), and
Wherein second frame of producer on (P) at metal tape (100) is configured to effectively rolling first rolling machine frame (230), and the main thickness first time that carries out metal tape (100) by this rolling machine frame reduces.
19. as the application of claim 18, wherein said drive chassis (220,260; (250,260)) as constructing as described in each in the claim 1 to 9.
20. as the application of claim 18 or 19, wherein said rolling equipment (1) is by driving maybe and can drive as each described method in the claim 13 to 17.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006048427.4 | 2006-10-12 | ||
| DE102006048427A DE102006048427B3 (en) | 2006-10-12 | 2006-10-12 | Rolling mill, retrofitted rolling mill, rolling mill or rolling mill, method for driving a rolling mill and use of a first stand of a rolling mill |
| PCT/EP2007/059066 WO2008043605A2 (en) | 2006-10-12 | 2007-08-30 | Rolling mill and method for controlling a rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101522326A CN101522326A (en) | 2009-09-02 |
| CN101522326B true CN101522326B (en) | 2011-09-07 |
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| CN2007800379247A Expired - Fee Related CN101522326B (en) | 2006-10-12 | 2007-08-30 | Rolling mill and method for controlling a rolling mill |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100050727A1 (en) |
| EP (1) | EP2081703A2 (en) |
| CN (1) | CN101522326B (en) |
| BR (1) | BRPI0719132A2 (en) |
| DE (1) | DE102006048427B3 (en) |
| RU (1) | RU2460598C2 (en) |
| WO (1) | WO2008043605A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007031333A1 (en) * | 2007-07-05 | 2009-01-15 | Siemens Ag | Rolling of a strip in a rolling train using the last stand of the rolling train as Zugverringerer |
| US9221088B2 (en) * | 2009-04-21 | 2015-12-29 | Fairmont Technologies, Llc | Stretch roll forming |
| EP2460597A1 (en) | 2010-12-01 | 2012-06-06 | Siemens Aktiengesellschaft | Method for controlling a tandem mill train, control and/or regulating device for a tandem mill train, machine-readable programming code, storage medium and tandem mill train |
| US9956600B2 (en) * | 2011-08-02 | 2018-05-01 | Fairmount Technologies, Llc | Universal dies of controllable curvature |
| JP6233614B2 (en) * | 2016-01-27 | 2017-11-22 | Ｊｆｅスチール株式会社 | Production line for hot-rolled steel strip and method for producing hot-rolled steel strip |
| AU2018400555A1 (en) * | 2018-01-10 | 2020-06-18 | Nippon Steel Corporation | Shaped steel rolling method, shaped steel manufacturing line, and shaped steel manufacturing method |
| PL3883701T3 (en) | 2018-11-23 | 2023-01-30 | John Cockerill S.A. | Flexible cold rolling mill and method for converting the same |
| EP3791971A1 (en) * | 2019-09-10 | 2021-03-17 | Primetals Technologies Austria GmbH | Cold rolling of a rolled product in a rolling line with several rolling stands |
| DE102019131761A1 (en) * | 2019-11-25 | 2021-05-27 | Norbert Umlauf | ROLLING LINE |
| DE102020209347B3 (en) | 2020-07-24 | 2021-12-09 | Technische Universität Bergakademie Freiberg | Process for the accelerated production of soft-annealed steel strip |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260251A (en) * | 1999-01-11 | 2000-07-19 | 阿尔斯托姆公司 | Method for regulating pulling-force and pressure and control system thereof |
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| SE383268B (en) * | 1972-09-11 | 1976-03-08 | Morgaardshammar Ab | COMPACT KALLVALLSVERK |
| US3798951A (en) * | 1972-10-03 | 1974-03-26 | Herr Voss Corp | Torque distribution system |
| US4016735A (en) * | 1975-09-23 | 1977-04-12 | Westinghouse Electric Corporation | Range control for an automatic gauge control system of a rolling mill |
| JPS5471759A (en) | 1977-11-21 | 1979-06-08 | Toshiba Corp | Tension controller for tandem mill |
| JPS57118812A (en) | 1981-01-16 | 1982-07-23 | Toshiba Corp | Plate thickness controlling device for tandem rolling mill |
| JPS61249620A (en) * | 1985-04-26 | 1986-11-06 | Kawasaki Steel Corp | Slippage detecting method for tension bridle roll device |
| US4909055A (en) * | 1988-07-11 | 1990-03-20 | Blazevic David T | Apparatus and method for dynamic high tension rolling in hot strip mills |
| JPH05169126A (en) * | 1991-12-26 | 1993-07-09 | Siemens Ag | Method for controlling cold strip rolling mill |
| US5746081A (en) * | 1993-03-27 | 1998-05-05 | Sms Schloemann-Siegmag Aktiengesellschaft | Reversing compact installation for cold rolling strip-shaped rolling material |
| DE102004020131A1 (en) * | 2003-12-19 | 2005-07-21 | Sms Demag Ag | Cold rolling steel mill combines three types of position shifting technology with a uniform frame design |
| JP4355279B2 (en) * | 2004-11-22 | 2009-10-28 | 新日本製鐵株式会社 | Lubricating oil supply method in cold rolling |
| EP2040134B1 (en) * | 2006-07-06 | 2018-08-01 | Citizen Watch Co., Ltd. | Electronic clock |
| EP1911506B1 (en) * | 2006-10-06 | 2009-08-19 | Umicore AG & Co. KG | Nitrogen oxide storage catalyst with reduced desulphurisation temperature |
-
2006
- 2006-10-12 DE DE102006048427A patent/DE102006048427B3/en not_active Expired - Fee Related
-
2007
- 2007-08-30 RU RU2009117323/02A patent/RU2460598C2/en not_active IP Right Cessation
- 2007-08-30 US US12/445,086 patent/US20100050727A1/en not_active Abandoned
- 2007-08-30 CN CN2007800379247A patent/CN101522326B/en not_active Expired - Fee Related
- 2007-08-30 WO PCT/EP2007/059066 patent/WO2008043605A2/en active Application Filing
- 2007-08-30 BR BRPI0719132-4A patent/BRPI0719132A2/en not_active IP Right Cessation
- 2007-08-30 EP EP07803075A patent/EP2081703A2/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260251A (en) * | 1999-01-11 | 2000-07-19 | 阿尔斯托姆公司 | Method for regulating pulling-force and pressure and control system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2009117323A (en) | 2010-11-20 |
| US20100050727A1 (en) | 2010-03-04 |
| DE102006048427B3 (en) | 2008-05-21 |
| RU2460598C2 (en) | 2012-09-10 |
| WO2008043605A3 (en) | 2008-06-26 |
| WO2008043605A2 (en) | 2008-04-17 |
| BRPI0719132A2 (en) | 2014-02-04 |
| EP2081703A2 (en) | 2009-07-29 |
| CN101522326A (en) | 2009-09-02 |
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Effective date of registration: 20160223 Address after: Erlangen, Germany Patentee after: The German Co., Ltd of primary metal science and technology Address before: Munich, Germany Patentee before: Siemens AG |
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