CN106825059A - The device and method of the rolling target thickness of milling train are changed in the operation of rolling - Google Patents

The device and method of the rolling target thickness of milling train are changed in the operation of rolling Download PDF

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Publication number
CN106825059A
CN106825059A CN201610682037.6A CN201610682037A CN106825059A CN 106825059 A CN106825059 A CN 106825059A CN 201610682037 A CN201610682037 A CN 201610682037A CN 106825059 A CN106825059 A CN 106825059A
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CN
China
Prior art keywords
milling train
thickness
rolling
target thickness
steel plate
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Granted
Application number
CN201610682037.6A
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Chinese (zh)
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CN106825059B (en
Inventor
潘星俊
李德万
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Posco Co Ltd
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Posco Co Ltd
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Priority to KR10-2015-0171538 priority Critical
Priority to KR20150171538 priority
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of CN106825059A publication Critical patent/CN106825059A/en
Application granted granted Critical
Publication of CN106825059B publication Critical patent/CN106825059B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21B37/16Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18Automatic gauge control
    • B21B37/20Automatic gauge control in tandem mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B2261/00Product parameters
    • B21B2261/02Transverse dimensions
    • B21B2261/04Thickness, gauge

Abstract

The rolling target thickness change device of milling train in the operation of rolling according to one embodiment in the present invention, it is included:Target thickness configuration part, the target thickness of the need change that it provides each milling train in the operation of rolling;Control unit, it is according to the steel plate translational speed between milling train, after the steel plate thickness that tracking is moved between milling train, when the thickness change interval for tracking enters the approaching side of related milling train, target thickness according to that need to change calculates target thickness change amount, and target thickness change amount and approaching side thickness change amount according to milling train calculates the roll spacing adjustment between the upper roller and bottom roll of each milling train;And drive division, the interval between the upper roller and bottom roll of its each milling train according to the roll spacing adjustment is adjusted.

Description

The device and method of the rolling target thickness of milling train are changed in the operation of rolling
Technical field
Device and method the present invention relates to change the rolling target thickness of milling train in a kind of operation of rolling.
Background technology
Continuous steel rolling refers to continuously to produce the technique of multiple coiled sheets after inserting a slab, and is produced after one slab of rolling One Ordinary Work mode of coiled sheet is different, due to needing the product of continuous production multi-thickness, it is therefore desirable in the operation of rolling The technology of middle change target thickness.
During change target thickness, if the control to thickness is incorrect, the unstability of whole plate is not only resulted in, become operation Obtain difficult, and due to producing larger thickness error after change, therefore the bad interval of thickness quality can be produced.
Prior art literature:
Patent document
Patent document 1:No. 2014-104491 (denomination of invention of Japanese Laid-Open Patent:Rolling control device and roll control Method)
The content of the invention
The invention problem to be solved
The present invention is in order to solve problem as described above, it is therefore intended that offer is a kind of to maintain the stable whole plate of steel plate The steel plate with high-quality thickness can be also produced simultaneously, in the operation of rolling that milling train target thickness can be changed in the operation of rolling The device and method of the rolling target thickness of change milling train.
The method for solving problem
The rolling target thickness change device of milling train in the operation of rolling according to one embodiment in the present invention, it is included: Target thickness configuration part, the target thickness that milling train need to each be changed in its offer operation of rolling;Control unit, its according to milling train it Between steel plate translational speed, after the steel plate thickness that move between milling train of tracking, in the interval entrance of thickness change for tracking During the approaching side of related milling train, target thickness change amount is calculated according to the target thickness that need to be changed, and it is thick according to the target of milling train Degree change amount and approaching side thickness change amount calculate the roll interval between the upper roller and bottom roll of each milling train Adjustment amount;And drive division, the upper roller of its each milling train according to the roll spacing adjustment is adjusted and bottom Interval between roll.
The method that rolling target thickness is changed in the operation of rolling according to one embodiment in the present invention, it is included:Rolling The 1st stage of the respective target thickness of milling train is changed and set in work;Followed the trail of according to the steel plate translational speed between milling train 2nd stage of the steel plate thickness moved between milling train;When thickness change interval enters into the approaching side of related milling train, according to need more The target thickness for changing is calculated and provides the 3rd stage of target thickness change amount;Target thickness change according to the related milling train Amount and approaching side amounts of thickness variation calculate the 4th stage of roll spacing adjustment;And according to the roll spacing adjustment Adjust the 5th stage at the roll interval of the related milling train.
The effect of invention
According to the present invention, the steel plate thickness change into milling train approaching side can be further considered in work is rolled and then is reached Into target thickness, therefore possess stable operation by the thickness control of high accuracy and can produce with high-quality thickness The advantage of steel plate.
Brief description of the drawings
Fig. 1 is the dress of the rolling target thickness for representing change milling train in the operation of rolling according to one embodiment in the present invention The block diagram put.
Fig. 2 is the chart of the one embodiment for representing the rolling target thickness using Fig. 1 change milling trains.
Fig. 3 is the implementing result of thickness change when representing that the thickness change produced in milling train is interval to reach related milling train Chart.
Fig. 4 is the exemplary plot for representing the relation between roll interval, approaching side thickness and rolling loading.
Fig. 5 is the chart of the example for representing the load distribution changed between adjustment milling train by the target thickness of milling train.
Fig. 6 is to represent the formula 1 using disclosed in the present application, and the mill rolls of F (5) are spaced the figure of the state being adjusted Table.
Fig. 7 is the method for the target thickness for representing change milling train in the operation of rolling according to one embodiment in the present invention Flow chart.
Specific embodiment
Hereinafter, in order that the technical staff with general knowledge easily implements the present invention in field of the present invention, will Preferred embodiment is described in detail referring to the drawings.But, during the preferred embodiments of the present invention are described in detail, If to related known general knowledge or structure illustrate be judged out can obscure idea of the invention when, by omit to its Explanation.Also, to the part with similar function and effect, identical symbol is used in whole accompanying drawings.
In addition, in the specification, when recording certain part and another part phase " connection ", it is not only comprising " directly Connection ", also comprising " being indirectly connected with " therebetween with other element.Also, "comprising" some element, such as Without especially opposite record, it is not representing and excludes other elements, but represent further to constitute comprising other Key element.
Hereinafter, with reference to the accompanying drawings to the target thickness of change milling train in the operation of rolling according to one embodiment in the present invention Device and method be described in detail.
The device of the rolling target thickness of milling train is changed in the operation of rolling that Fig. 1 represents according to one embodiment in the present invention Block diagram.
As shown in fig. 1, the rolling target thickness of milling train is changed in the operation of rolling according to one embodiment in the present invention Device (100) include target thickness configuration part (110), control unit (120) and drive division (130).
The target thickness configuration part (110) provides the mesh that milling train (F (1)-F (5)) need to each be changed in the operation of rolling Mark thickness.
Fig. 2 is described as the chart for utilizing Fig. 1 to change one embodiment of the rolling target thickness of milling train, such as reference picture 2 Target thickness configuration part (110) loads and according to product after rolling scaduled becoming for the rolling appropriately distributed between milling train Thickness, calculates the target thickness of the need change of each milling train in the operation of rolling, and provides to control unit.
Thereafter, the control unit (120) calculates the thick to the target that need to be changed from current target thickness of each milling train Thickness change amount (△ h) of degree, and according to this numerical value is calculated between the upper roller of each milling train and bottom roll Roller. redress amount (△ s).
More specifically, the control unit (120) changes continuous-rolling according to target thickness change amount (△ h) of each milling train The target thickness of (F (1)-F (5)), now, as shown in Figure 3, the interval arrival of thickness change produced in milling train before is related Thickness change is performed during milling train.
Herein, the control unit (120) can be included according to the steel plate translational speed between each milling train, followed the trail of in milling train Between the thickness tracking part (121) of steel plate thickness that moves.
Milling train before approaching side tracking of the thickness tracking part (121) from the outlet side of milling train before to related milling train Thickness, in order to the translational speed for calculating displacement can be used the steel plate translational speed deduced out from the roller speed of milling train before, If possess steel plate translational speed tester between milling train, the measured value can be used.Milling train before the thickness of tracking is usable Target thickness, if when the outlet side of milling train before possesses thickness gauge, the measured value can be used.
Also, the control unit (120) calculates the roller spacing adjustment using [formula 1] of following record.
[formula 1]
Herein, △ S:Roll spacing adjustment, △ h:The target thickness change amount of milling train, △ H:Into the steel plate of milling train Amounts of thickness variation, M:Milling train elastic modelling quantity, Q:Plastic modulus, a1 and a2 are the coefficients with the value more than 0 less than 1.
[formula 1] further contemplates the thickness of the outlet side caused by the thickness variation △ H of milling train approaching side when seeking roller spacing adjustment Degree changes △ H*, and can be tried to achieve from the roll interval described in Fig. 4, approaching side thickness and rolling loading relation.Herein, from Fig. 4 induction in order to carry out h to hnextThickness change roll spacing adjustment [formula 2] it is as follows.
[formula 2]
△ h*=[Q/ (M+Q)] 〃 △ H are substituted into herein, then additional user's coefficient can be derived [formula 1].
Milling train target thickness change method of the invention enters one by following the trail of the steel plate thickness moved between milling train The thickness change of milling train gives the influence of related milling train and carries out thickness change before step consideration, therefore can carry out more accurately thick Degree control.
As reference, the F (1) in such as Fig. 2, the △ H=0 in the case where approaching side does not have thickness to change, therefore from [formula 1] Can try to achieve such as bottom roll spacing adjustment.
Fig. 5 is the chart of the example for representing the load distribution changed between adjustment milling train by the target thickness of milling train, Fig. 6 It is to represent the formula 1 using disclosed in the present application, the mill rolls of F (5) are spaced the chart of the state being adjusted.
As reference picture 5 understands, if carrying out thickness change in milling train F (4) and producing △ h4, will in the approaching side of F (5) Into the thinning thickness of the thickness of same degree, can also be produced equivalent to △ h in the outlet side of F (5)5* variation.If not Compensate for that and placed, final thickness will produce error and then produce the bad interval of quality.
Therefore, such as the present invention, when target thickness is set to same thickness after milling train F (5), due to no target thickness Change therefore △ h=0, therefore can be tried to achieve such as bottom roll spacing adjustment from [formula 1].
Therefore, as shown in Figure 6, in order to compensate △ h5*, the roll interval of F (5) can be adjusted.
Next, the drive division (130) top of each milling train according to the roll spacing adjustment is adjusted is rolled Interval between roller and bottom roll.
Fig. 7 is the method for the target thickness for representing change milling train in the operation of rolling according to one embodiment in the present invention Flow chart.
As reference picture 7 understands, the side of rolling target thickness is changed in the operation of rolling according to one embodiment in the present invention Method (S700) may include the 1st stage (S710) to the 5th stage (S750).
1st stage (S710) can be the stage of the target thickness of each continuous-rolling of change setting in rolling work.
2nd stage (S720) can be that the steel moved between milling train is followed the trail of according to the steel plate translational speed between milling train The stage of plate thickness.
3rd stage (S730) can be when thickness change interval enters into the approaching side of related milling train, according to needing change Target thickness calculate and the stage of target thickness change amount be provided.
4th stage (S740) can be;According to the target thickness change amount and approaching side thickness of the related milling train Variable quantity calculates the stage of roll spacing adjustment.
Herein, the 4th stage (S740) can adjust to calculate the roll interval using [formula 1] of following record The stage of amount.
[formula 1]
Herein, △ S:Roll spacing adjustment, △ h:The target thickness change amount of milling train, △ H:Into the steel plate of milling train Amounts of thickness variation, M:Milling train elastic modelling quantity, Q:Plastic modulus, a1 and a2 are the coefficients with the value more than 0 less than 1.
[formula 1] further contemplates the thickness of the outlet side caused by the thickness variation △ H of milling train approaching side when seeking roller spacing adjustment Degree changes △ H*, and can be tried to achieve from the roll interval described in Fig. 4, approaching side thickness and rolling loading relation.Herein, from Fig. 4 induction in order to carry out h to hnextThickness change roll spacing adjustment [formula 2] it is as follows.
[formula 2]
△ h*=[Q/ (M+Q)] 〃 △ H are substituted into herein, then additional user's coefficient can be derived [formula 1].
Finally, the 5th stage (S750) can be to adjust rolling for the related milling train according to the roll spacing adjustment 5th stage at roller interval.
Therefore, if using the rolling target thickness that milling train is changed in the operation of rolling according to one embodiment in the present invention Method, the steel plate thickness change into milling train approaching side can be further considered in work is rolled and then target thickness is reached, Therefore possess stable operation by the thickness control of high accuracy and the steel plate with high-quality thickness can be produced.
Used as reference, "~portion " proposed by the present invention can be computing device, the computing device can comprising at least one or More than one processing unit and internal memory (Memory).
Herein, processing unit can be comprising such as central processing unit (CPU), image processor (GPU), microprocessor, specially With integrated circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field programmable Gate Arrays, FPGA) etc., and can have multiple cores.
The holder can for volatile memory (for example, RAM etc.), non-voltile memory (for example, ROM, flash memory etc.) or Person it combines.
Also, computing device can be added comprising holder (Storage), and holder includes storage magnetic, optical storage Device etc., but do not limited by it.
Can be stored in the holder can quilt in order to embody improved more than one embodiment in this specification The order that computer is understood, can also store to embody being understood by other computers for runtime, application program etc. Order.The order that can be understood by computer stored in holder, internal memory can be loaded into order to be carried out by processing unit On.
In addition, computing device can include the communication connection communicated by internet and other equipment (comprising multiple). Herein, communication connection (comprising multiple) can be comprising modem, network interface (NIC), merging network interface, wireless frequency Emitter/receiver, infrared port, USB connections or computing device and other computing devices are attached other connect Mouthful.Also, communication connection (comprising multiple) can include wired connection or wireless connection.
Each element of the computing device can be by various interconnections such as bus (for example, Peripheral Component Interconnect Standard (PCI), USB, firmware (IEEE 1394), optical bus structure etc.) and be attached, or can be mutually connected by network Connect.
More than, the present invention has been described in detail with embodiment, but as the present invention will not be necessarily limited to Embodiment, is not departing from the range of technology imagination of the invention, can carry out various deformation and implement.
Therefore the technology that the embodiment disclosed in the present invention is not meant to limit the present invention is envisioned but in order to illustrate, this The technology of invention envisions scope will not be limited by such embodiment.Protection scope of the present invention should be solved by claim Release, and should be construed to be included within scope of authority of the invention with all technologies imagination in its equivalents.
Description of reference numerals
100:The target thickness change device of milling train in the operation of rolling
110:Target thickness configuration part
120:Control unit
121:Thickness tracking part
130:Drive division.

Claims (5)

1., the present invention relates to a kind of device of the rolling target thickness of change milling train in operation of rolling, it is included:
Target thickness configuration part, the target thickness that milling train need to each be changed in its offer operation of rolling;
Control unit, its steel plate translational speed of basis between milling train, after the steel plate thickness that tracking is moved between milling train, When the thickness change interval for tracking enters the approaching side of related milling train, target thickness is calculated more according to the target thickness that need to be changed The amount of changing, and target thickness change amount and approaching side thickness change amount according to milling train calculate each milling train upper roller and Roll spacing adjustment between the roll of bottom;And
Drive division, between the upper roller and bottom roll of its each milling train according to the roll spacing adjustment is adjusted Interval.
2. the device of rolling target thickness is changed in the operation of rolling according to claim 1, it is characterised in that:
The control unit includes thickness tracking part, and it is followed the trail of between milling train according to the steel plate translational speed between the milling train Mobile steel plate thickness.
3. the device of rolling target thickness is changed in the operation of rolling according to claim 1, it is characterised in that:
The control unit calculates the roll spacing adjustment using [formula 1] of following record,
[formula 1]
Δ s = a 1 · M + Q M · Δ h - a 2 · Q M Δ H
Wherein, △ S:Roll spacing adjustment, △ h:The target thickness change amount of milling train, △ H:Steel plate thickness into milling train becomes Change amount, M:Milling train elastic modelling quantity, Q:Plastic modulus, a1 and a2 are the coefficients with the value more than 0 less than 1.
4. the method that rolling target thickness is changed in the operation of rolling, it is included:
The 1st stage of the respective target thickness of milling train is changed and set in rolling work;
The 2nd stage of the steel plate thickness moved between milling train is followed the trail of according to the steel plate translational speed between milling train;
When thickness change interval enters into the approaching side of related milling train, target is calculated and provided according to the target thickness that need to be changed thick Spend the 3rd stage of change amount;
Target thickness change amount and approaching side amounts of thickness variation according to the related milling train calculate roll spacing adjustment 4th stage;And
The 5th stage that the roll for adjusting the related milling train according to the roll spacing adjustment is spaced.
5. the method that rolling target thickness is changed in the operation of rolling according to claim 4, it is characterised in that:
4th stage calculates the roll spacing adjustment using [formula 1] of following record.
[formula 1]
Δ s = a 1 · M + Q M · Δ h - a 2 · Q M Δ H
Wherein, △ S:Roll spacing adjustment, △ h:The target thickness change amount of milling train, △ H:Steel plate thickness into milling train becomes Change amount, M:Milling train elastic modelling quantity, Q:Plastic modulus, a1 and a2 are the coefficients with the value more than 0 less than 1.
CN201610682037.6A 2015-12-03 2016-08-17 The device and method of the rolling target thickness of milling train are changed in the operation of rolling Expired - Fee Related CN106825059B (en)

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KR20150171538 2015-12-03

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CN106825059B CN106825059B (en) 2018-11-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110722007A (en) * 2019-10-17 2020-01-24 北京交通大学 Method for obtaining outlet thickness of finishing mill

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CN1524636A (en) * 2003-02-26 2004-09-01 三菱电机株式会社 Sheet thickness changing apparatus of continuous rolling mill during rolling
JP2007118048A (en) * 2005-10-28 2007-05-17 Kobe Steel Ltd Apparatus and method for controlling rolling
KR100923550B1 (en) * 2002-12-23 2009-10-27 주식회사 포스코 Device for calculating the roll and width of steel sheet by using the edge tracking
CN102649127A (en) * 2011-02-28 2012-08-29 株式会社日立制作所 Rolling control device and rolling control method
JP2013018019A (en) * 2011-07-11 2013-01-31 Jfe Steel Corp Method and device for changing flying thickness
CN103316927A (en) * 2012-03-19 2013-09-25 株式会社日立制作所 Rolling control device and rolling control method
CN103785692A (en) * 2012-10-31 2014-05-14 宝山钢铁股份有限公司 Method of producing strip steel with various target thicknesses in length direction through hot continuous rolling mill set

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100923550B1 (en) * 2002-12-23 2009-10-27 주식회사 포스코 Device for calculating the roll and width of steel sheet by using the edge tracking
CN1524636A (en) * 2003-02-26 2004-09-01 三菱电机株式会社 Sheet thickness changing apparatus of continuous rolling mill during rolling
JP2007118048A (en) * 2005-10-28 2007-05-17 Kobe Steel Ltd Apparatus and method for controlling rolling
CN102649127A (en) * 2011-02-28 2012-08-29 株式会社日立制作所 Rolling control device and rolling control method
JP2013018019A (en) * 2011-07-11 2013-01-31 Jfe Steel Corp Method and device for changing flying thickness
CN103316927A (en) * 2012-03-19 2013-09-25 株式会社日立制作所 Rolling control device and rolling control method
CN103785692A (en) * 2012-10-31 2014-05-14 宝山钢铁股份有限公司 Method of producing strip steel with various target thicknesses in length direction through hot continuous rolling mill set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110722007A (en) * 2019-10-17 2020-01-24 北京交通大学 Method for obtaining outlet thickness of finishing mill

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