CN1980753A - Method for rolling a product to be rolled comprising a transition region - Google Patents

Method for rolling a product to be rolled comprising a transition region Download PDF

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Publication number
CN1980753A
CN1980753A CNA2005800227989A CN200580022798A CN1980753A CN 1980753 A CN1980753 A CN 1980753A CN A2005800227989 A CNA2005800227989 A CN A2005800227989A CN 200580022798 A CN200580022798 A CN 200580022798A CN 1980753 A CN1980753 A CN 1980753A
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China
Prior art keywords
mill
transition region
rolled piece
roll gap
mill stand
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Pending
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CNA2005800227989A
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Chinese (zh)
Inventor
汉斯-乔基姆·弗尔克尔
马丁·尼曼
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Siemens AG
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Siemens AG
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Publication date
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Publication of CN1980753A publication Critical patent/CN1980753A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58Roll-force control; Roll-gap control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/16Metal-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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18Metal-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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B1/00Metal-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
    • B21B1/22Metal-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
    • B21B1/24Metal-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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0085Joining ends of material to continuous strip, bar or sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48Tension control; Compression control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48Tension control; Compression control
    • B21B37/52Tension control; Compression control by drive motor control

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a method for rolling a product to be rolled (1) in a rolling train (10) comprising at least two roll stands (2) which each comprise a roll gap (11), the product to be rolled (1) comprising at least one transition region (9). If a critical transition region (9) crosses the rolling train (10), the roll gaps (11) of the at least two roll stands (2) are successively opened and closed according to the position of the transition region (9) moving at speed (v) through the rolling train (10), in the direction of the direction of travel (x) of the conveyor. The opening of the roll gaps (11) takes place parallel to the position of the critical transition region (9) when the product to be rolled (1) is displaced. A transition region (9) is critical when the structure thereof requires the roll gaps (11) to be opened. The variations in at least one of the dimensions or properties such as the hardness or alloying of the product to be rolled (1) in the environment of the transition region (9) can cause significant disturbance of the process variables, or a rip of the product to be rolled (1), when the roll gap (11) is closed. The inventive opening of the roll gaps (11), when the device is moving, enables the controlled transition of a product to be rolled (1) with extreme variations in dimension and/or hardness, for a shorter length.

Description

The milling method that has the rolled piece of transition region
The present invention relates to a kind of in mill train the method for rolling rolled piece, this mill train has at least two mill stands that a roll gap is arranged respectively, wherein, rolling rolled piece that at least one transition region be arranged.The invention still further relates to a kind of computing equipment that is used for correspondingly adjusting mill train.
Especially in the mill train of continuously operation, rolled piece has a plurality of since size difference and/or material behavior (also having temperature) difference can mutually different subregion.Two of rolled piece each other in succession subregion be connected to each other by a transition region.A plurality of subregions of a rolled piece for example since one by one supplying metal coil and mutually welding formation rolling before.In this case the subregion of rolled piece with respectively coil corresponding.Rolled piece is divided into each single coiling usually again in rolling back.
In DE10159608A1, introduced a kind of rolling method of coiling that a weld seam is arranged in the mill train that a plurality of mill stands and at least one pulling force detecting element are arranged that is used for.Press DE10159608A1,, determine the regulated quantity of mill speed and mill stand adjusting device according to the position of weld seam in mill train inside.
The method of the known rolled piece that is used for rolling band transition region only provides following transition region ability reliably working: the change of at least one size and/or at least a material behavior is smaller between rolled piece subregion before transition region and the subregion after the transition region.Subregion as if huge difference is arranged by direct rolling characteristic successively of known method and/or size then brings serious disturbance to procedure parameter usually.These interference can cause rolled piece to crack under extreme case.
The objective of the invention is to avoid the shortcoming of prior art and a kind of method is provided, can the rolling reliably rolled piece that at least one transition region is arranged by this method, even between the rolled piece subregion that connects by transition region, may have huge difference sometimes aspect the size of rolled piece and/or the characteristic.
Above-mentioned purpose realizes by the method for the described type of a kind of preface, wherein, when transition region is in the situation that need open, opens to the rolled piece transition region position that the roll gap of at least one mill stand foundation is moved by mill train with a speed.In addition above-mentioned purpose reaches by a kind of computing equipment that is used to adjust mill train accordingly.
The present invention allows rolling reliably in succession rolled piece subregion each other, and for example thickness of strip, band hardness and/or alloy have the rolled piece of huge difference.No longer the rolled piece of requirement in the long-term plan process must be by those at difference is little between in succession the band each other subregion that is each is coiled or each band is formed by the present invention.Therefore, by the present invention for example when the product term of short-term, can need not to consider respectively to coil or the situation of the characteristic of band or size under, coil or band is formed also this rolled piece of continuous rolling reliably of rolled piece by these.Significantly improve the adaptability and the reliability of equipment thus.
Opening just when the transition region of danger is walked close to of at least one mill stand roll gap, that is when the situation of transition region need be opened roll gap, just carry out.Dangerous transition region refers to the transition region that connects the so different subregion of rolled piece character or size, so that can bring serious interference to procedure parameter when their mill stands by the roll gap closure move.If a transition region is dangerous, then it is in the situation that roll gap is opened in requirement.This is applicable to that also follow-up some of the present invention further develop.Avoid before the transition region of danger enters, closing down equipment by the present invention, improve flow thus.
Appropriate is that the roll gap of mill stand is opened when transition region arrives this mill stand at the latest.
Advantageously, always open the roll gap of one of them mill stand of mill train constantly at most in any enforcement of the inventive method.By this and above-mentioned further developing of the present invention, according to the big as far as possible part of the rolling rolled piece of desired product performance and thereby obviously reduce the share of waste material.
Appropriate in addition is the roll gap of closed this mill stand after the transition region of danger is passed through this mill stand.
Advantageously, balanced before this mill stand and the band pulling force in the rolled piece of back before opening the roll gap of mill stand, so that make the mill stand of the operation of rolling to participating in, that is as far as possible little to the influence of this mill stand and nigh mill stand.
Advantageously, when roll gap is closed, in the rolls of rolling stand at least one, especially the speed of the rotary speed of working roll and rolled piece adapts.By this controlledly closed roll gap, avoided the breaker roll undesirable damage in surface basically with speed synchronism.
Advantageously, measure the speed of rolled piece here.Improve the precision of synchronism thus.
Advantageously, determine the speed of rolled piece by at least a model.Provide a kind of especially effectively speed to determine method thus.
Advantageously, time-optimizedly in view of the compression in the position adjustment mill stand of transition region in mill train.In mill train be compressed in transition region near the time reduce.The compensation that rolls of rolling stand speed is changed in advance in this case.
Advantageously, roll gap is before the transition region process, by controlledly opening the adjusting device off-load.In addition preferably follow the tracks of the relevant speed of all the other mill stand drivers of mill train.Prevent the interfering process parameter in this way.
Advantageously, during in this mill stand, compressing,, be adjusted at the band pulling force in the preceding described rolled piece of mill stand by the rotary speed of all the other mill stands at the transition region minimizing of danger.
By other advantages of the present invention and details being described in detail below in conjunction with the accompanying drawing illustrated embodiment.In the accompanying drawing:
Fig. 1 represents to have the mill train of computing equipment;
Fig. 2 and 3 represents the rolled piece of tape welding seam for example;
Fig. 4 is the rolled piece of expression band wedge for example;
Fig. 5 represents to be between two mill stands with the rolled piece of transition region;
Fig. 6 schematically illustrates band tension variations curve when roll gap is closed; And
Fig. 7 represents the adjusting device of band pulling force in the rolled piece for example.
Fig. 1 represents to be used for the mill train 10 of rolling rolled piece 1, and rolled piece moves by mill train 10 with speed v.Mill train 10 has at least two mill stands 2 by rolled piece 1.Rolled piece 1 passes through mill train 10 along band traffic direction x.Continuous rolling rolled piece 1, preferably metal tape in mill train 10.Mill train 10 preferably relates to a kind of cold rolling mill that three above mill stands 2 are arranged usually.Establish taking-up equipment 3 in mill stand 2 downstreams, rolling good rolled piece 2 batches on taking-up equipment 3.
Mill train 10, especially the support 2 of mill train 10 is connected with computing equipment 4.Do not have the sensor of expression in detail in the accompanying drawings at mill train 10 internal memories, they for example provide measuring-signal to computing equipment 4.Computing equipment 4 is preferably passed to control signal the actuator in the mill train 10.Computing equipment 4 preferably has a kind of model 12, and it is by the process in the digital simulation mill train 10 that for example relates to rolled piece 1.
The direction of pointing out in Fig. 1, that is band traffic direction x, thickness of strip direction y and strip width direction z only at the position of rolled piece 1 and the position of mill stand 2, do not relate to the layout of computing equipment 4 with respect to mill train 10 in principle.Mill stand 2 respectively has a roll gap 11, as only representing among Fig. 1.Mill stand 2 has at least two working rolls, and wherein at least one is arranged on along the top of thickness of strip direction y rolled piece 1 and at least one is arranged in the below of rolled piece 1.Roll gap 11 is between these working rolls.Except that working roll, also establish the backing roll of further not representing in the accompanying drawing usually.
Especially when cold rolling, rolled piece 1, for example sheet metal is produced in continuous rolling mill machine row 10 more and more.In this case, usually one by one supply to coil at mill train 10 also be that the production equipment import of its part is welded mutually.Mill train 10 is continuous, that is the ground that do not stop rolling by a plurality of weld together coil the rolled piece of forming 1.In the production equipment outlet, rolled piece is divided into some again and coils.This is for example by cutting or showing conscientiously.Especially under the situation of short product term, rolled piece 1 need not to consider to constitute the characteristic of respectively coiling of rolled piece 1 in continuous rolling mill machine row 10 rolling.For example respectively coil at it along the thickness of thickness of strip direction y or strip width direction z and/or width and/or different aspect its alloy and/or the hardness.
Fig. 2 represents to have two to coil and part figure at the rolled piece 1 of subregion 1a, 1b different aspect their thickness corresponding to two differences.This of rolled piece 1 two subregion 1a, 1b are connected to each other by transition region 9, and here transition region 9 has a weld seam 5.
Fig. 3 represents to have two and corresponds respectively to the part figure that difference is coiled the rolled piece 1 of subregion 1a, 1b.These two subregion 1a, 1b are connected to each other by transition region 9, and here transition region 9 has a weld seam 5.In Fig. 3 with the same weld seam 5 that only hints in Fig. 2.Subregion 1a, the 1b that represents in Fig. 3 or coil aspect its width differs from one another.
Fig. 4 represents the part of rolled piece 1, and here two subregion 1a, 1b preferably connect corresponding to the transition region between two subregion 1a, 1b that coil 9 by two.Transition region 9 only is expressed as approximate wedge shape as an example in Fig. 4.Transition region 9 has in many cases and is different from illustrated varied in thickness process.For example the thickness of rolled piece 1 also can at first increase then and reduces in transition region 9.The above also is applicable to the width of rolled piece 1 similarly.
Various characteristics in transition region 9 such as thickness of strip, strip width, band hardness and/or alloy can change.If rolled piece is not considered respectively to coil or later on each subregion property combination together, then rolled piece 1 especially can flip-flop in the character at weld seam 5 places.
Fig. 5 be illustrated in for example two mill stands 2 ', 2 " between be designed to the transition region 9 of wedge 6.Mill stand 2 ' be located at mill stand 2 here " the upstream.A top working roll 7 of mill stand 2 ' have ' and bottom working roll 8 '.Equally, mill stand 2 " has a top working roll 7 " and a bottom working roll 8 ".Roll gap 11 ' or the top working roll 7 of 11 " are in mill stand 2 ' or 2 " ' or 7 " and bottom working roll 8 ' or 8 " between.
Subregion 1a, the 1b of rolled piece 1 has on the one hand in the difference that enters between the thickness of strip that has just existed before first mill stand 2.On the other hand the thickness of strip of rolled piece 1 by have closed roll gap 11 ', also changing during 11 " mill stand 2 ', 2 " operation.For example the subregion 1b of rolled piece 1 has thickness of strip h1 at mill stand 2 ' preceding, it greater than its mill stand 2 ' after thickness of strip h2.Equally, the thickness of strip h4 behind mill stand 2 " preceding thickness of strip h3 is than mill stand 2 " is big.Difference between thickness of strip h1 and h2 or h3 and the h4 be by mill stand 2 ', 2 " in compression cause.
Mill stand 2,2 ', 2 " in compression by by working roll 7 ', 7 ", 8 ', 8 " roll-force that is applied on the rolled piece 1 causes.When a mill stand 2,2 ', 2 " not only described at least one top working roll and also described at least one bottom working roll 7 ', 7 " or 8 ', 8 " when contacting with rolled piece 1, people just say roll gap 11,11 this moment ', 11 " closed.When a mill stand 2,2 ', 2 " inherent rolled piece 1 is along at least one side of thickness of strip direction y; especially at rolled piece 1 upside; rolled piece 1 no longer contact described at least one working roll 7 ', 7 " or 8 ', 8 "; especially described at least one top working roll 7 ', 7 ", then people just say mill stand 2,2 this moment ', 2 " roll gap 11,11 ', 11 " are opened.
As top illustrated, rolled piece 1 has one or more transition regions 9 sometimes, their situation causes cause serious interfering process parameter when mill stand 2 operations of this transition region 9 by roll gap 11 closures.There is the situation of transition region 9 this danger in subregion 1a, the 1b that connects by transition region 9 at rolled piece 1 when its at least a characteristic and/or at least one size have huge difference.Dangerous transition region 9 has the grave danger that causes rolled piece 1 fracture when the roll gap 11 by closure moves.Therefore, the roll gap 11 of mill stand 2 is opened according to the position of this transition region 9.If the transition region 9 of rolled piece 1, then when the situation of transition region 9 need be opened roll gap, is just opened the roll gap 11 of mill stand 2 by mill train 10 motions with speed v.
When the rolling operation of continous way, dangerous transition region 9 is successively passed through these mill stands 2 of mill train 10.Here, computing equipment 4 control mill trains 10, the roll gap 11 that makes mill stand 2 when rolled piece 1 motion one by one mill stand ground and be parallel to danger transition region 9 the position open.Here, mill stand 2 " roll gap 11 " arrives these mill stands 2 in the transition region 9 of danger at the latest " time opens.The roll gap 11 of mill stand 2 was preferably just opened before the transition region 9 of danger enters this mill stand 2 soon, and the transition region 9 of danger by behind this mill stand 2 with its closure.Between moving period, preferably open or open especially fully a roll gap 11 of mill stand 2 by mill train at most in the moment of a regulation at rolled piece 1.Roll gap 11 by each mill stand 2 is just opened as far as possible shortly, produces very little waste material of share and very big part that can controlledly rolling rolled piece 1.(according to said method mill train stops before the transition region 9 of danger enters with so-called " open gap " method except saving time for this, open then all roll gaps 11,11 ', an outstanding advantage comparing of 11 ") is; dangerous transition region 9 roll gap 11,11 ', 11 " when opening one by one by 10 operations of whole rolling machine row, and then closed again after this all roll gaps 11,11 ', 11 ", restart to implement this milling method then.
Fig. 6 schematically illustrates along the change curve of the traffic direction x band pulling force T of band in mill train 10.The support 2 of mill train is in position x 1, x 2, x 3, x 4At position x 5If devices for taking-up 3.When the rolling operation of rule, at position x 1First mill stand 2 back rolled pieces 1 in band pulling force T descend gradually until devices for taking-up 3 at each mill stand 2.Rolled piece 1 is hit or ruptures when avoiding roll gap 11 to open, before the roll gap 11 of mill stand 2 is opened, balanced before this mill stand 2 with back rolled piece 1 in band pulling force T.In other words, if open the roll gap 11 of a mill stand 2, changed continuously ideally soon during then the band pulling force T in these mill stand 2 environment opens not long ago, opens at roll gap 11 and after opening.
In addition advantageously, carry out reducing compression in the mill stand 2 by the leading variation of the compensation speed of rolls time-optimizedly.Preferably, the off-loading of roll gap 11 according to the method for operation transition that the position is adjusted or roll-force is adjusted, is realized by the device of controlledly opening in the mill stand 2.Follow the tracks of the relative velocity of mill train 10 all the other mill stand 2 drivers in this case.Prevent the interfering process parameter in this way.Described relative velocity is the speed of comparing with mill train 10 other mill stands 2 in the mill stand 2.
If transition region 9 can not be rolling reliably by controlledly opening roll adjusting device when roll gap 11 closures, then open this roll gap 11 as mentioned above.If roll gap 11 is opened for the transition region 9 of danger, then roll gap 11 is controlledly closed until contacting with band after the transition region 9 of danger is passed through.The speed v synchronization of that record and/or the simulation of mill speed and rolled piece 1 here.
Fig. 7 represent two mill stands 2 ', 2 ", wherein mill stand 2 " be located at mill stand 2 ' the downstream.These two mill stands 2 ' and the equipment of 2 " have one and be used for mill stand device 2a ' or 2a " and mill stand driver 2b ' or 2b ".If band pulling force adjuster 13.To band pulling force adjuster 13 advantageously import two mill stands 2 ' and 2 " between the measured value of band pulling force T and/or the value of determining by model in the rolled piece 1.The following describes by the present invention at mill stand 2 " a kind of favourable scheme of band pulling force in the preceding adjustment rolled piece 1.When normal rolling operation, band pulling force T by mill stand 2 " mill stand adjusting device 2a " by mill stand 2 " back cunning adjust.As long as at mill stand 2 " in compression reduce at the transition region 9 of danger, band pulling force adjuster 13 is just by the rotary speed adjustment band pulling force T of mill stand 2 ' mill stand driver 2b.
Thought as basis of the present invention may be summarized as follows:
The present invention relates to a kind of in mill train 10 method of rolling rolled piece 1, mill train has at least two mill stands 2 that a roll gap 11 is arranged respectively, wherein, rolling rolled piece 1 that at least one transition region 9 be arranged.If dangerous transition region 9 is by mill train 10, the roll gap 11 of then described at least two mill stands 2 depends on the position of speed v by the transition region 9 of mill train 10 motions along band traffic direction x successively open and close.Carry out the position of opening the transition region 9 of danger when being parallel to rolled piece 1 motion of roll gap 11.Transition region 9 is dangerous when roll gap 11 is opened in its conditions associated requirement.At least one size of described rolled piece 1 or the variation of a specific character such as hardness or alloying component in transition region 9 zones may cause serious interference or rolled piece 1 crackle to procedure parameter when roll gap 11 closures.In equipment running process, open roll gap 11 one by one by the present invention mill stand, allow controlledly to transmit one in little measuring length at the rolled piece 1 that extreme variation is arranged aspect size and/or the hardness.
The roll that the pulling force balance prevents mill stand 2 especially working roll 7 ', skid 7 ", 8 ', 8 ".When the roll gap 11 in a mill stand 2 is opened, in adjacent support, also can not implement the equilibrium process of band pulling force T.Measure and/or by at least one in computing equipment 4 the model 12 of autocoding determine the speed v of rolled pieces 1.With working roll 7 ', be placed in the synchronized speed of rolls and prevent to damage roll on the rolled piece 17 ", 8 ', 8 ".Time-optimized ground open and close roll gap 11 reduces to minimum degree with deviation length (Abmasslaeng).
Follow the tracks of by the differential monitoring device from the same beans-and bullets shooter 8 that preferably is in mill train 10 imports the position of transition region 9 in mill train 10.

Claims (13)

1. the method for a rolling rolled piece (1) in a mill train (10), this mill train has at least two mill stands (2) that a roll gap (11) is arranged respectively, wherein, want rolling rolled piece (1) that at least one transition region (9) is arranged, it is characterized by: when the situation of described transition region (9) requires to open roll gap, according to (roll gap (11) of at least one mill stand (2) is opened in the position that v) moves through rolled piece (1) transition region (9) of mill train (10) with a speed.
2. in accordance with the method for claim 1, it is characterized by, the roll gap of a mill stand (2 ") (11 ") arrives this mill stand in described transition region (9) at the latest and (opens during 2 ").
3. in accordance with the method for claim 2, it is characterized by, in any moment in this method implementation process, in described mill train (10), always open one of them roll gap (11) at most.
4. according to the described method of above-mentioned each claim, it is characterized by, described transition region (9) by described mill stand (after 2 "), the roll gap of closed this mill stand (2 ") (11 ").
5. according to the described method of above-mentioned each claim, it is characterized by, preceding at the roll gap of opening mill stand (2) (11), balanced at this mill stand (2) before and the band pulling force (T) in the described rolled piece (1) afterwards.
6. in accordance with the method for claim 5, it is characterized by, described roll gap (when 11 ") are closed, described mill stand (2 ") roll (7 ", the rotary speed and the speed of described rolled piece (1) of at least one is (v) suitable in 8 ").
7. according to the described method of above-mentioned each claim, it is characterized by, the speed of measuring described rolled piece (1) (v).
8. according to the described method of above-mentioned each claim, it is characterized by, the speed of determining described rolled piece (1) by at least a model (12) (v).
9. according to the described method of above-mentioned each claim, it is characterized by, because the position of described transition region (9) in described mill train (10) gives controlling for the compression in the mill stand (2) time-optimizedly.
10. according to the described method of above-mentioned each claim, it is characterized by, the described roll gap (11) of a mill stand (2) described transition region (9) through before, the off-load by controlledly opening adjusting device.
11. in accordance with the method for claim 10, it is characterized by, follow the tracks of the relative velocity of all the other mill stands of described mill train (10) (2) driver.
12. according to the described method of above-mentioned each claim, it is characterized by, the transition region (9) owing to described danger reduce described mill stand (in 2 ") decrement during; by the rotary speed of all the other mill stands (2) driver, be adjusted at this mill stand (band pulling force (T) in 2 ") the described rolled piece (1) before.
13. a computing equipment (4), it is used for controlling described mill train (10) according to the described method of above-mentioned each claim by programming.
CNA2005800227989A 2004-05-06 2005-04-28 Method for rolling a product to be rolled comprising a transition region Pending CN1980753A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022334.3 2004-05-06
DE102004022334A DE102004022334A1 (en) 2004-05-06 2004-05-06 Process for rolling a rolling stock with transition area

Publications (1)

Publication Number Publication Date
CN1980753A true CN1980753A (en) 2007-06-13

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US (1) US20080060403A1 (en)
EP (1) EP1747074A1 (en)
CN (1) CN1980753A (en)
DE (1) DE102004022334A1 (en)
RU (1) RU2006143047A (en)
WO (1) WO2005107973A1 (en)

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* Cited by examiner, † Cited by third party
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CN102066016B (en) * 2008-06-19 2013-06-12 西门子公司 Continuous rolling train with integration and/or removal of mill stands during ongoing operation
CN101927267B (en) * 2009-06-22 2012-07-04 宝山钢铁股份有限公司 Control method and device for cleaning between rolls of finish rolling strip steel

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EP1747074A1 (en) 2007-01-31
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WO2005107973A1 (en) 2005-11-17
US20080060403A1 (en) 2008-03-13

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