CN101247901A - Method for thickness regulation during a hot-rolling process - Google Patents
Method for thickness regulation during a hot-rolling process Download PDFInfo
- Publication number
- CN101247901A CN101247901A CNA2006800311729A CN200680031172A CN101247901A CN 101247901 A CN101247901 A CN 101247901A CN A2006800311729 A CNA2006800311729 A CN A2006800311729A CN 200680031172 A CN200680031172 A CN 200680031172A CN 101247901 A CN101247901 A CN 101247901A
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- CN
- China
- Prior art keywords
- rolling
- thickness
- roll
- mill housing
- signal
- Prior art date
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005098 hot rolling Methods 0.000 title claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000011664 signaling Effects 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention relates to a method for thickness regulation during a rolling, especially hot-rolling, process, using at least one roll stand. The actual, average position of the adjustment cylinders of the roll stand and the total rolling force of the same are taken into account. According to the invention, at least one additional position measurement is carried out by the detection of position signals close to the roll gap of the roll stand.
Description
The present invention relates to a kind ofly when rolling, particularly when carrying out hot rolling, be used for the method that thickness is regulated, wherein, consider the average position of reality of adjustment cylinder of mill stand and their general rolling force with at least one rolling-mill housing.
The method of the thickness G 1 of thin, the hard workpiece behind a kind of tube reducing passage that is used to calculate the tube reducing milling train unit by having opposed rolling working face is disclosed in DE 20 20 402, be used to measure the force measurement device that the surface is pressed off with a kind of, described power produces when workpiece is by opposed rolling working face in the tube reducing process.In described method:
A) produce a kind of signal, this signal is the yardstick of thickness G 5, and described thickness is to determine by the crosspoint of a suitable roll extension curve and a suitable workpiece deformation curve in the tube reducing process;
B) produce a kind of signal, this signal is the yardstick of thickness G 3, and described thickness is to determine by the intersection of the curve of measured power and roll extension curve;
C) produce a kind of signal, this signal is the yardstick in dangerous zone, and this dangerous zone is determined by the signal of the difference between expression thickness G 5 and the G3;
D) produce a kind of signal in addition, this signal is the yardstick of the stretching, extension error of expression calculating, its method be the signal in the dangerous zone of expression as reducing for tube reducing process preset thickness, for the roll elongation of the prophesy of tube reducing process and no matter be thickness reduce or extend be scheduled in the function of relative error probability change.
E) produce a kind of signal, this signal is the yardstick of the thickness G 1 of calculating, and its method is to represent that the signal of thickness G 3 is added on the elongation error of calculating.
DE 26 57 455 A1 have described a kind of method that is used to compensate roll deformation on the tight rolling-mill housing of adjustable clamp, in these rolling-mill housing, pass through the thickness of hydraulic actuating mechanism accommodation zone, and in the method, by the hydraulic clamp application cylinder regulate power (Fa) as the summation of roll-force and adjustable clamping force according to following equation:
F
a＝(F
a0+(F
r-F
r0))＊c
a/(c
1+c
a)
So change, be about to an additional total head and be added on the basic rated value.This additional total head is the actual value (F by clamping force
1) and the initial value (F of clamping force
10) between difference form, and with rigidity (Ca) and the inside (C of outside rolling-mill housing parts
1) and the rigidity of outside rolling-mill housing parts (Ca) and ratio (Ca/ (C
1+ Ca)) estimate.
DE 16 02 195 A1 disclose a kind of method that is used to calculate the thickness of thin hard workpiece.
Produce a kind of signal in the method.This signal is the yardstick of thickness G 5.This thickness is to determine by the crosspoint of a suitable roll extension curve and a suitable workpiece deformation curve in the tube reducing process;
Produce a kind of signal.This signal is the yardstick of thickness G 3.This thickness is to determine by the crosspoint of the curve of the power of measuring and roll extension curve;
Produce a kind of signal.This signal is a yardstick in dangerous zone.This zone is to determine by the signal of the difference between expression thickness G 5 and the G3;
Produce a kind of signal in addition.The yardstick of the stretching, extension error that this signal indication calculated, its method be the dangerous zone of expression signal as for the roll elongation that reduces passage prophesy and no matter be thickness reduce or extend be scheduled in the function of relative error probability change;
Produce a kind of signal.This signal is the yardstick of the thickness G 1 of calculating, and its way is to represent that the signal of thickness G 3 is added in the elongation error of being calculated.
Up to the present when hot strip rolling, be the calculating principle (Gaugemeterprinzip) of the actual tape thickness of so-called detection for what regulate that thickness adopts.To regulate the measuring position S of cylinder for this reason
DS, S
OSRevise the rolling-mill housing elongation g (also asking for an interview Fig. 1) of a calculating.By the rolling force F of measuring
DS, F
OSWith a rolling-mill housing extension curve 1/M
GCalculate rolling-mill housing elongation g.Tape thickness that will so obtain and thickness rated value compare then, and adjust.Except measuring position and roll-force, also need rolling-mill housing model accurately for this method.
The little inaccurate instability that all can cause the bigger error in tape thickness and may cause thickness to be regulated when rolling hard product and strip in the rolling-mill housing model.
Therefore task of the present invention is the so improvement of method do that this paper is started described type, promptly avoids above-mentioned defective.
This task is finished by following way according to the present invention, and the elongation ratio that is about to rolling-mill housing minimizes.This reaches by following measure, promptly carries out at least one additional position measurement by the signal that locates in the immediate area of the roll gap of rolling-mill housing.Wherein, particularly between consideration/mensuration working roll and/or the backing roll and/or the position signalling between working roll bearing block and/or the support roller bearing block.
The advantage of the method according to this invention is that the ratio of the rolling-mill housing elongation that position measurement comprises is littler.So only should consider roll flattening and roll bending.Needn't calculate other the part such as the elongation of frame and crossbeam.Particularly surveying work roll structure parts apart from the time needn't consider the rub suspension of dagger-axe Ilyushin aluminium silicon stannum alloy bearing, the bending of backing roll and the degree of eccentricity of backing roll.As shown in Figure 2, prior art has been disclosed to be used for the method that thickness regulates and to continue to be used fully, and is improved and expands by above-mentioned feature.
The method according to this invention causes when detecting the tape thickness of hard product its accuracy of detection higher, and particularly improves the dynamic characteristic that thickness is regulated when strip is rolling.
In an improvement scheme, also the signal that obtains can be used for position adjustments and/or revolution adjusting and/or be used to calculate tape thickness, and therefore be used for the adjusting of tape thickness.
By accompanying drawing one embodiment of the present of invention are described in more details below.These accompanying drawings are:
Fig. 1: the thickness of prior art is regulated flow chart.
Fig. 2: regulate flow chart according to thickness of the present invention.
Figure 1 illustrates rolling, particularly disclosed thickness is regulated flow chart during hot rolling system.One for example has a fore side OS and a driving side DS by a working roll to the rolling-mill housing W that AW and backing roll constitute SW.A band B is arranged between working roll is to AW.Detecting operation side S in disclosed method for thickness regulation
OSCylinder position and driving side S
DSCylinder position and the cylinder position S of definite actual average
ACTIn addition, the rolling force F by the detecting operation side
OSRolling force F with driving side
DSDetermine total rolling force F
ACTBy total rolling force F ACT and a rolling-mill housing extension curve 1/M
GCalculate rolling-mill housing elongation g.
By measuring actual average cylinder position S
ACTObtain actual tape thickness h with the rolling-mill housing elongation g that calculates
ACT
Tape thickness h with reality
ACTWith tape thickness rated value h
REFCompare, and be used for the thickness adjusting.Caliper profiler provides the position rated value for the cylinder position adjusting device.
Flow chart according to the present invention according to Fig. 2 improves disclosed thickness adjusting.For this to fore side S
ROSWith driving side S
RDSOn the distance of working roll bearing block measure, and determine the average distance of working roll bearing block then.Average cylinder position S with the reality of further trying to achieve
ACTNumerical value directly and cylinder position rating number S
REFCompare.
It also is the rolling force F of the fore side of further trying to achieve
OSRolling force F with driving side
DSCause total rolling force F
ACTAccording to the present invention with these roll-forces and a rolling-mill housing model M that relates to working roll bearing block
RGet in touch, and obtain rolling-mill housing elongation g then
R
The rolling-mill housing model M according to the present invention
RRelevant with selected position measurement.At working roll AW and/or backing roll SW and/or between working roll bearing block and/or supporting roller bearing seat, obtain the position signalling that to consider for this method of position measurement, wherein, need at least one position signalling.The rolling-mill housing elongation that should consider in the method according to the invention should be coordinated with the ground of the position signalling that is obtained respectively mutually.
Fore side apart from S
ROSWith driving side apart from S
RDSCause for example average distance S of working roll bearing block
RFrom working roll bearing block apart from S
RElongation g with rolling-mill housing about working roll bearing block
RIn obtain actual tape thickness h
ACT, and and tape thickness rated value h
REFCompare, and regulate.
The Reference numeral table
The AW working roll
The SW backing roll
The W rolling-mill housing
The B band
DS Ma Qu moves side
The OS fore side
T
ACTTotal roll-force
F
OSThe fore side roll-force
F
DSMa Qu moves the side roll-force
S
ACTThe actual average cylinder position
S
OSThe fore side cylinder position
S
DSThe driving side cylinder position
S
REFThe cylinder position rated value
h
ACTActual tape thickness
h
REFThe tape thickness rated value
S
RWorking roll structural member average distance
S
ROSThe fore side distance
S
RDSThe driving side distance
g
RFrame elongation about the working roll structural member
M
RFrame model about the working roll structural member
The elongation of g frame
M
GThe frame model
Claims (5)
1. when rolling, particularly with at least one rolling-mill housing hot rolling the time, be used for the method that thickness is regulated, wherein, the actual average position of the adjustment cylinder of consideration rolling-mill housing and their general rolling force, it is characterized in that, carry out at least one additional position measurement by the signal that in the immediate area of the roll gap of rolling-mill housing, locates.
2. in accordance with the method for claim 1, it is characterized in that, measure the position signalling between working roll and/or backing roll and/or working roll bearing block and/or the supporting roller bearing seat.
3. according to claim 1 or 2 described methods, it is characterized in that, position signalling is used for position adjustments.
4. according to each described method of claim 1 to 3, it is characterized in that, position signalling is used for revolution regulates.
5. according to each described method of claim 1 to 4, it is characterized in that, position signalling is used to calculate the thickness of band.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005040690 | 2005-08-26 | ||
| DE102005040690.4 | 2005-08-26 | ||
| DE102005042837.1 | 2005-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101247901A true CN101247901A (en) | 2008-08-20 |
Family
ID=39947865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800311729A Pending CN101247901A (en) | 2005-08-26 | 2006-07-24 | Method for thickness regulation during a hot-rolling process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101247901A (en) |
| ZA (1) | ZA200800015B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825065A (en) * | 2017-03-22 | 2017-06-13 | 中冶华天工程技术有限公司 | Mill roll-gap control method |
| CN112658063A (en) * | 2020-11-19 | 2021-04-16 | 首钢京唐钢铁联合有限责任公司 | Installation precision control method for roller box supporting roller of straightening machine |
| CN112893479A (en) * | 2021-03-08 | 2021-06-04 | 唐山钢铁集团有限责任公司 | High-precision acid rolling trimming shear parameter setting method with automatic compensation function |
| CN116037654A (en) * | 2023-04-03 | 2023-05-02 | 江苏瑞邦复合材料科技有限公司 | Rolling method and rolling equipment for ultrathin copper-aluminum composite foil |
-
2006
- 2006-07-24 CN CNA2006800311729A patent/CN101247901A/en active Pending
-
2008
- 2008-01-07 ZA ZA200800015A patent/ZA200800015B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825065A (en) * | 2017-03-22 | 2017-06-13 | 中冶华天工程技术有限公司 | Mill roll-gap control method |
| CN106825065B (en) * | 2017-03-22 | 2018-12-28 | 中冶华天工程技术有限公司 | Mill roll-gap control method |
| CN112658063A (en) * | 2020-11-19 | 2021-04-16 | 首钢京唐钢铁联合有限责任公司 | Installation precision control method for roller box supporting roller of straightening machine |
| CN112893479A (en) * | 2021-03-08 | 2021-06-04 | 唐山钢铁集团有限责任公司 | High-precision acid rolling trimming shear parameter setting method with automatic compensation function |
| CN112893479B (en) * | 2021-03-08 | 2022-07-12 | 唐山钢铁集团有限责任公司 | High-precision acid rolling trimming shear parameter setting method with automatic compensation function |
| CN116037654A (en) * | 2023-04-03 | 2023-05-02 | 江苏瑞邦复合材料科技有限公司 | Rolling method and rolling equipment for ultrathin copper-aluminum composite foil |
| CN116037654B (en) * | 2023-04-03 | 2023-07-18 | 江苏瑞邦复合材料科技有限公司 | Rolling method and rolling equipment for ultrathin copper-aluminum composite foil |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200800015B (en) | 2008-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080820 |