CN109622633A - Rougher of hot strip mill and finish rolling centering match control method - Google Patents
Rougher of hot strip mill and finish rolling centering match control method Download PDFInfo
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- CN109622633A CN109622633A CN201811562614.3A CN201811562614A CN109622633A CN 109622633 A CN109622633 A CN 109622633A CN 201811562614 A CN201811562614 A CN 201811562614A CN 109622633 A CN109622633 A CN 109622633A
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- finish rolling
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- 238000005096 rolling process Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000012937 correction Methods 0.000 claims abstract description 26
- 230000008859 change Effects 0.000 claims abstract description 6
- 230000000717 retained effect Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000003801 milling Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 5
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000012417 linear regression Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- 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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
-
- 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
- B21B39/14—Guiding, positioning or aligning work
- B21B39/18—Switches for directing work in metal-rolling mills or trains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a kind of rougher of hot strip mill and finish rolling centering match control method, the rougher of hot strip mill and finish rolling centering match control method include: step A: determining overall offset amount of the intermediate base in mm finishing mill unit；Step B: do not change the middle lines of roughing mills, mm finishing mill unit middle line and delay table middle line under the premise of, the flipper guide that is laterally oriented to of the setting to intermediate base on the delay table between roughing mills and mm finishing mill unit；The plate face of the vertical intermediate base of the guide surface of flipper guide；Step C: according to overall offset amount of the intermediate base in mm finishing mill unit, the correction amount of flipper guide is preset, is rectified a deviation to intermediate base.The present invention is not necessarily to change the middle line of the middle line of roughing mills, the middle line of mm finishing mill unit and delay table, is rectified a deviation by flipper guide easy to remove, thus simple and easy, is finally reached the centering and the matched purpose of finish rolling centering of intermediate base.
Description
Technical field
The present invention relates to steel rolling fields, and in particular to when hot-continuous-rolling strip steel rolls, a kind of rougher of hot strip mill and finish rolling centering
Match control method.
Background technique
When hot-continuous-rolling strip steel rolls, slab becomes intermediate base after roughing mill rolls, and intermediate base passes through delay table again
Finishing mill is transported to be rolled.Delay table is the straight line connection roller-way of roughing, finish rolling, and delay table two sides have side to lead
Plate.Flipper guide entrance guides intermediate base to enter in horn-like, and clamping action is then played to intermediate base in other positions of flipper guide, prevents
Only intermediate base sideslip.Intermediate base, which enters in the finish rolling operation of rolling often, to be existed because plate shape is poor caused by wedge shape is larger, and influencing client makes
The case where using.
The wedge-shaped deviation (Wedgede.viation) of hot-strip is defined as: from the transmission side edge of strip to strip
The difference of thickness at 25mm and the thickness from work side edge to from strip 25mm, i.e. △ hd=△ h25-DS-△h25-WS, △ in formula
hdFor wedge-shaped deviation, mm；△h25-DSFor thickness of the transmission side edge at 25mm of strip, mm；△h25-WSFor the work of strip
Thickness of the side edge at 25mm, mm.The wedge shape of strip is measured by the pressure sensor and profile gauge of mm finishing mill unit end rack,
And transmit and cheat process control computer, feedback adjustment is carried out after being computed.And when wedge shape is in the larger value always, then it is often
Roughing, finish rolling center line mismatch, and whole sideslip causes after intermediate base enters finishing mill.Roughing, finish rolling center line mismatch are
Roughing, finish rolling center line not point-blank.After the completion of roughing mill rolling, because roughing mill flipper guide itself, edger roll etc. are set
Standby limitation, intermediate base centering are consistent with roughing mill centering.When roughing, finish rolling centering not point-blank when, then it is intermediate
The centering of base also with the centering of finish rolling not point-blank, wedge asymmetric so as to cause roll gap pressure in two sides when finish rolling rolling
Shape is excessive.In addition when roughing, finish rolling center line mismatch, roughing, finish rolling center line offset be difficult to it is intuitive, quickly carry out
Monitoring.
Currently, be directed to roughing, finish rolling center line non-matching phenomenon, generally require it is whole to roughing mills, mm finishing mill unit into
Row adjusts neutrality, and adjustment difficulty is big, time-consuming long, costly.Moreover, the roughing of certain hot rolling producing lines, finish rolling center line are endless
The phenomenon that full matching, can not be readily available elimination, need adjustment often repeatedly.
In conclusion following problems exist in the prior art: when hot-continuous-rolling strip steel rolls, roughing, finish rolling center line are not
It is inconvenient with adjustment.
Summary of the invention
The present invention provides a kind of rougher of hot strip mill and finish rolling centering match control method, roughing, finish rolling center line not
In the case where matching, guarantee the matching of intermediate base centering and finishing mill centering, to reach reduction wedge shape, the mesh of steadying plate shape
's.
For this purpose, the present invention proposes a kind of rougher of hot strip mill and finish rolling centering match control method, the rougher of hot strip mill and
Finish rolling centering match control method includes:
Step A: overall offset amount of the intermediate base in mm finishing mill unit is determined；
Step B: do not change the middle lines of roughing mills, mm finishing mill unit middle line and delay table middle line under the premise of,
The flipper guide being laterally oriented to intermediate base is set on the delay table between roughing mills and mm finishing mill unit；Flipper guide
The vertical intermediate base of guide surface plate face；
Step C: according to overall offset amount of the intermediate base in mm finishing mill unit, the correction amount of flipper guide is preset, to intermediate base
Correction, the middle line that flipper guide is pressed in the correction direction of flipper guide are set toward with the opposite side of the overall offset amount in unit.
Further, in the step A, the offset of intermediate base each milling train in mm finishing mill unit is first measured, then is passed through
The method of linear regression determines overall offset amount of the intermediate base in mm finishing mill unit.
Further, intermediate base offset measurement of each milling train in mm finishing mill unit is as follows: one frame finishing mill of measurement
Length of the eroded area edge away from the roll both ends is rolled when roll is changed after a rolling cycle, it is true by length difference
Fixed intermediate base is in the offset of the finishing mill, i.e. finishing mill offset Δ l=lDS-LWS, transmission side rolls eroded area side in formula
Edge and transmission side distance are lDS, unit mm；It is L that working side, which rolls eroded area edge and working side distance,WS, unit mm；
Intermediate base is biased to working side if Δ l>0, if the intermediate base of Δ l<0 is biased to transmission side.
Further, two flipper guides, respectively the first flipper guide and the second flipper guide are equipped at intervals on delay table, often
A flipper guide includes: trumpet-shaped inlet, retained part and the guide wheel positioned at trumpet-shaped inlet and retained part intersection, institute
Guide wheel is stated with shaft, the plate face of the axially vertical intermediate base of the shaft；First flipper guide is located at the interposition of delay table
It sets, before the second flipper guide is located at mm finishing mill unit entrance.
Further, each flipper guide further include: connect the guide wheel and to drive the guide wheel to be axially moveable hydraulic
Cylinder.
Further, the length of the delay table is 100m, and the length of each flipper guide is 5m to 5.5m, trumpet-shaped inlet
Length be 1.2m, retained part length be 4m, the first flipper guide rectify a deviation ratio setting be 61.8%, the second flipper guide rectify a deviation ratio
Example is set as 38.2%.
Further, the guide wheel of the second flipper guide is located at 15m before mm finishing mill unit entrance；The two sides of trumpet-shaped inlet are vertical
It in intermediate blanket face and is inclined outwardly, trumpet-shaped inlet maximum width=retained part width+30mm, in retained part width ratio
Between the wide 40mm of base.
Further, the setting that the flipper guide can be moved horizontally by driving device is on delay table.
Further, further include step D: according to actual shifts situation of the intermediate base in mm finishing mill unit, obtaining practical inclined
Shifting amount according to real offset, then corrects preset correction amount, carries out dynamic compensation.
Further, the rougher of hot strip mill and finish rolling centering match control method are specially following steps:
By tracking the actual wear situation of each breast roller of mm finishing mill unit, centre base is inclined when measuring mm finishing mill unit rolling
To working side about 40mm；
Two be laterally oriented to intermediate base are set on the delay table between roughing mills and mm finishing mill unit
Flipper guide；The length of respectively the first flipper guide and the second flipper guide, the delay table is 100m, and the length of each flipper guide is
5m, the first flipper guide correction ratio setting is 61.8%, and the second flipper guide correction ratio setting is 38.2%；
In flipper guide use process, as the abrasion of guide wheel adjusts abration position by moving up and down for guide wheel, increase
Add the service life of guide wheel.
The present invention is directed to certain hot rolling producing lines since roughing, finish rolling center line mismatch, and such centering mismatch can not
The case where being readily available elimination, two steps that can be rectified a deviation by the determining and intermediate base of offset are controlled, and guarantee intermediate base in finish rolling
Centering rolling in machine, achievees the purpose that control wedge shape.The present invention is not necessarily to change the middle line of the middle line of roughing mills, mm finishing mill unit
With the middle line of delay table, rectified a deviation by flipper guide easy to remove, thus it is simple and easy, it is finally reached pair of intermediate base
In with the matched purpose of finish rolling centering.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram that the offset of single finish rolling milling train of the invention determines；
Fig. 2 is the schematic diagram of flipper guide position of the invention；
Fig. 3 is the operation principle schematic diagram that flipper guide of the invention guides intermediate base centering.
Drawing reference numeral explanation:
1, roughing mills；2, delay table；3, flipper guide；4, mm finishing mill unit；5, intermediate base；6, worn area is rolled；7, it rolls
Roller；lDS, transmission side rolling eroded area edge and transmission side distance；LWS, working side rolling eroded area edge and working side away from
From.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
It is bright.
The working principle of the invention is: for certain hot rolling producing lines since roughing, finish rolling center line mismatch, and such is right
Middle mismatch can not be readily available the case where elimination, and two steps that can be rectified a deviation by the determining and intermediate base of offset are controlled, and guarantee
Intermediate base in finishing mill to middle rolling, achieve the purpose that control wedge shape.
Offset determination can understand indirectly strip in finishing mill by the actual wear situation of tracking each breast roller of finish rolling
Whether sideslip and the substantially offset of each rack is determined.When perfect condition in finishing mill intermediate base centering and roll centering one
It causes.After each rack offset of finish rolling determines, then ideally roughing, finish rolling center line exist it is almost the same with offset
Deviation.Understand strip indirectly by the actual wear situation of each breast roller of finish rolling whether sideslip and to determine each in mm finishing mill unit
The substantially offset of rack, it is simple and effective.Then right by the superposition of the multiple flipper guide Centering compensation adjustment of delay table
Intermediate base is guided in, is reached intermediate base centering rectification operation, is finally reached the centering and finish rolling centering of intermediate base
The purpose matched.
The present invention proposes a kind of rougher of hot strip mill and finish rolling centering match control method, the rougher of hot strip mill and finish rolling pair
Middle match control method includes:
Step A: overall offset amount of the intermediate base in mm finishing mill unit is determined；
Step B: as shown in Fig. 2, in the middle line, the middle line of mm finishing mill unit and the middle line of delay table that do not change roughing mills
Under the premise of, being laterally oriented to intermediate base is set on the delay table 2 between roughing mills 1 and mm finishing mill unit 4
Flipper guide 3；The plate face of the vertical intermediate base of the guide surface of flipper guide 3；
Step C: according to overall offset amount of the intermediate base in mm finishing mill unit, the correction amount of flipper guide is preset, to intermediate base
Correction, the middle line that flipper guide is pressed in the correction direction of flipper guide are set toward with the opposite side of the overall offset amount in unit.For example, such as
Overall offset amount of the base in mm finishing mill unit is to be biased to roll working side about 40mm among fruit, then the middle line of flipper guide is passed toward roll
Dynamic lateral deviation 40mm.
Further, in the step A, the offset of intermediate base each milling train in mm finishing mill unit is first measured, then is passed through
The method of linear regression determines overall offset amount of the intermediate base in mm finishing mill unit.In this way, the overall offset amount in mm finishing mill unit
With higher systematicness and accuracy.
Further, as shown in Figure 1, intermediate base offset measurement of each milling train in mm finishing mill unit is as follows: measurement one
Length of the 6 domain edge of worn area away from 7 both ends of roll is rolled when the roll 7 of frame finishing mill is changed after a rolling cycle
Degree determines intermediate base 5 in the offset of the finishing mill, i.e. finishing mill offset Δ l=l by length differenceDS-LWS, it is driven in formula
It is l that side, which rolls eroded area edge and transmission side distance,DS, unit mm；Working side roll eroded area edge and working side away from
From for LWS, unit mm；Intermediate base 5 is biased to working side if Δ l>0, if the intermediate base 5 of Δ l<0 is biased to transmission side.
Further, as shown in Figures 2 and 3, two flipper guides are equipped at intervals on delay table 2, respectively the first side is led
Plate 31 and the second flipper guide 32, each flipper guide 3 include: trumpet-shaped inlet 34, retained part 36 and be located at trumpet-shaped inlet
With the guide wheel 35 of retained part intersection, the guide wheel has shaft, the plate face of the axially vertical intermediate base of the shaft；First
Flipper guide 31 is located at the middle position of delay table 2, before the second flipper guide 32 is located at 4 entrance of mm finishing mill unit.Trumpet-shaped inlet 34
For guiding intermediate base 5 to enter the retained part 36 of flipper guide, trumpet-shaped inlet 34 include two perpendicular to intermediate blanket face and
It is inclined outwardly the vertical plate to form bell shape.Retained part 36 plays the role of base 5 among stable and centering, retained part 36
Including two perpendicular to intermediate blanket face and the vertical plate that is parallel to each other.The width at the most narrow place of trumpet-shaped inlet is equal to retained part
Width.Guide wheel 35 is located at flipper guide trumpet-shaped inlet and retained part junction, for intermediate base in operating for reduction correction
Card resistance and abrasion to delay table flipper guide.The superposition adjusted by the multiple flipper guide Centering compensations of delay table,
To being guided in for intermediate base, reaches intermediate base centering rectification operation, be finally reached the centering and finish rolling centering of intermediate base
Matched purpose.
Further, each flipper guide further include: connect the guide wheel and to drive the guide wheel to be axially moveable hydraulic
Cylinder.Moving up and down for guide wheel can be controlled according to 35 applying working condition of guide wheel by hydraulic cylinder, adjust abration position, increase making for guide wheel
Use the period.Hydraulic cylinder can connect the shaft of guide wheel 35, and by moving up and down for the shaft of Driven by Hydraulic Cylinder guide wheel 35, drive is led
Wheel moves up and down, in this way, moving up and down for guide wheel is convenient and efficient, saves adjustment time.
Further, the length of the delay table is 100m, and the length of each flipper guide is 5m to 5.5m, the first flipper guide
Ratio setting of rectifying a deviation is 61.8%, plays the role of coarse adjustment, and the second flipper guide correction ratio setting is 38.2%, plays accurate adjustment work
With.The adjustment ratio of above-mentioned coarse adjustment and accurate adjustment is golden section proportion, is avoided first because of the excessive formation adjustment of single adjustment amount
Greatly, the problem that the abrasion to equipment is big is caused；Secondly, the adjustment ratio of above-mentioned coarse adjustment and accurate adjustment is according to actual production reality
It tramples, the preferable numerical value obtained by repeated screening, the adjustment ratio of above-mentioned coarse adjustment and accurate adjustment can guarantee coarse adjustment and accurate adjustment
Reasonable distribution and smooth connection guarantee the stability and fluency of entire adjustment process, avoid the excessive or too small of coarse adjustment ratio
Cause the mismatch of the adjustment capability of accurate adjustment.
Further, the guide wheel of the first flipper guide is located at before mm finishing mill unit entrance at 50m；To there is enough distances to carry out
The guide wheel of coarse adjustment, the second flipper guide is located at 15m before mm finishing mill unit entrance, to have suitable distance to carry out accurate adjustment and to keep accurate adjustment
Intermediate base afterwards smoothly can smoothly enter mm finishing mill unit；The length of trumpet-shaped inlet is 1.2m, flat to intermediate base to guarantee
Slow guiding and stable holding guide effect, retained part length are 4m, and the two sides of trumpet-shaped inlet are each perpendicular to intermediate base
It plate face and is inclined outwardly, trumpet-shaped inlet maximum width=retained part width+30mm, retained part width is wider than intermediate base
40mm, to keep clamping and stablize the effect of the intermediate base of conveying.If retained part width is too small, it is likely that lead to centre
The difficulty of transportation of base will affect the guiding accuracy of trumpet-shaped inlet if retained part width is too big.
Further, the setting that the flipper guide 3 can be moved horizontally by driving device is on delay table.In this way, side
Guide plate 3 is convenient, rapid in adjustment, can be flexibly adjusted according to practical condition.
Further, further include step D: according to actual shifts situation of the intermediate base in mm finishing mill unit, obtaining practical inclined
Shifting amount according to real offset, then corrects preset correction amount, carries out dynamic compensation.The correction amount of flipper guide can be in control system
Individually setting on system, setting rear side guide plate can be realized by hydraulic cylinder to walk automatically.In production process, steel rolling personnel can be in
Between actual shifts situation of the base in finishing mill, preset flipper guide correction amount setting value, then by range estimation verifying it is adjusted
The plate profile instrument of intermediate base drift condition and combination finishing mill outlet in finishing mill, realization are led according to the correction side of practical condition
The dynamic of plate correction amount compensates.
Further, the rougher of hot strip mill and finish rolling centering match control method are specially following steps:
By tracking the actual wear situation of each breast roller of mm finishing mill unit, centre base is inclined when measuring mm finishing mill unit rolling
To working side about 40mm；
Two be laterally oriented to intermediate base are set on the delay table between roughing mills and mm finishing mill unit
Flipper guide；Respectively the first flipper guide 31 and the second flipper guide 32, the length of the delay table are 100m, the length of each flipper guide
Degree is 5m, and the first flipper guide 31 correction ratio setting is 61.8%, and the second flipper guide 32 correction ratio setting is 38.2%；
In flipper guide use process, as the abrasion of guide wheel adjusts abration position by moving up and down for guide wheel, increase
Add the service life of guide wheel.
The invention enables intermediate bases to match with mm finishing mill unit centering, and shim values are in smaller value, plate shape when finish rolling rolls
Normally.
The foregoing is merely the schematical specific embodiment of the present invention, the range being not intended to limit the invention.For this
Each component part of invention can be combined with each other under conditions of not conflicting, any those skilled in the art, not depart from this
Made equivalent changes and modifications, should belong to the scope of protection of the invention under the premise of the conceptions and principles of invention.
Claims (10)
1. a kind of rougher of hot strip mill and finish rolling centering match control method, which is characterized in that the rougher of hot strip mill and finish rolling pair
Middle match control method includes:
Step A: overall offset amount of the intermediate base in mm finishing mill unit is determined；
Step B: do not change the middle lines of roughing mills, mm finishing mill unit middle line and delay table middle line under the premise of, thick
The flipper guide being laterally oriented to intermediate base is set on the delay table between milling train group and mm finishing mill unit；Flipper guide is led
To the plate face of the vertical intermediate base in face；
Step C: according to overall offset amount of the intermediate base in mm finishing mill unit, presetting the correction amount of flipper guide, rectify a deviation to intermediate base,
The middle line that flipper guide is pressed in the correction direction of flipper guide is set toward with the opposite side of the overall offset amount in unit.
2. rougher of hot strip mill as described in claim 1 and finish rolling centering match control method, which is characterized in that the step A
In, the offset of intermediate base each milling train in mm finishing mill unit is first measured, then determine that intermediate base exists by the method for linear regression
Overall offset amount in mm finishing mill unit.
3. rougher of hot strip mill as claimed in claim 2 and finish rolling centering match control method, which is characterized in that intermediate base is in essence
The offset measurement of each milling train is as follows in milling train group: the roll of one frame finishing mill of measurement is changed after a rolling cycle
When roll length of the eroded area edge away from the roll both ends, by length difference determine intermediate base in the offset of the finishing mill,
That is finishing mill offset Δ l=lDS-LWS, transmission side rolling eroded area edge and transmission side distance are l in formulaDS, unit is
mm；It is L that working side, which rolls eroded area edge and working side distance,WS, unit mm；Intermediate base is biased to working side if Δ l > 0,
Intermediate base is biased to transmission side if Δ l < 0.
4. rougher of hot strip mill as described in claim 1 and finish rolling centering match control method, which is characterized in that on delay table
Two flipper guides, respectively the first flipper guide and the second flipper guide are equipped at intervals with, each flipper guide includes: trumpet-shaped inlet, folder
Part and the guide wheel positioned at trumpet-shaped inlet and retained part intersection are held, the guide wheel has shaft, the axis of the shaft
To the plate face of vertical intermediate base；The guide wheel of first flipper guide is located at the middle position of delay table, the guide wheel position of the second flipper guide
The 10-20m before mm finishing mill unit entrance.
5. rougher of hot strip mill as claimed in claim 4 and finish rolling centering match control method, which is characterized in that each flipper guide
Further include: the hydraulic cylinder for connecting the guide wheel and the guide wheel being driven to be axially moveable.
6. rougher of hot strip mill as claimed in claim 4 and finish rolling centering match control method, which is characterized in that the intermediate calender rolls
The length in road is 100m, and the length of each flipper guide is 5m to 5.5m, and the length of trumpet-shaped inlet is 1.2m, and retained part length is
4m, the first flipper guide correction ratio setting is 61.8%, and the second flipper guide correction ratio setting is 38.2%.
7. rougher of hot strip mill as claimed in claim 4 and finish rolling centering match control method, which is characterized in that the second flipper guide
Guide wheel be located at 15m before mm finishing mill unit entrance；The two sides of trumpet-shaped inlet are each perpendicular to intermediate blanket face and are inclined outwardly, loudspeaker
Shape entrance maximum width=retained part width+30mm, retained part width are 40mm wider than intermediate base.
8. rougher of hot strip mill as claimed in claim 4 and finish rolling centering match control method, which is characterized in that the flipper guide
The setting that can be moved horizontally by driving device is on delay table.
9. rougher of hot strip mill as described in claim 1 and finish rolling centering match control method, which is characterized in that further include step
D: according to actual shifts situation of the intermediate base in mm finishing mill unit, real offset is obtained, according to real offset, then is corrected pre-
If correction amount, carry out dynamic compensation.
10. rougher of hot strip mill as claimed in claim 4 and finish rolling centering match control method, which is characterized in that the heat is even
Rolling roughing and finish rolling centering match control method is specially following steps:
By tracking the actual wear situation of each breast roller of mm finishing mill unit, centre base is biased to work when measuring mm finishing mill unit rolling
Make side 40mm；
It is arranged on delay table between roughing mills and mm finishing mill unit and two sides of intermediate base being laterally oriented to is led
Plate；Respectively the first flipper guide and the second flipper guide, the length of the delay table are 100m, and the length of each flipper guide is 5m,
First flipper guide correction ratio setting is 61.8%, and the second flipper guide correction ratio setting is 38.2%；
In flipper guide use process, as the abrasion of guide wheel adjusts abration position by moving up and down for guide wheel, increase is led
The service life of wheel.
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| CN201811562614.3A CN109622633B (en) | 2018-12-20 | 2018-12-20 | Hot continuous rolling rough rolling and finish rolling centering matching control method |
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| CN201811562614.3A CN109622633B (en) | 2018-12-20 | 2018-12-20 | Hot continuous rolling rough rolling and finish rolling centering matching control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139259A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Automatic deviation rectifying control method for finish rolling strip steel |
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| CN103240285A (en) * | 2013-05-16 | 2013-08-14 | 莱芜钢铁集团有限公司 | Method for achieving automatic clamping centering of hot rolling strip steel manipulator |
| US20160332204A1 (en) * | 2014-01-16 | 2016-11-17 | Danieli & C. Officine Meccaniche S.P.A | Guide device for rolling long metal products |
| CN207103440U (en) * | 2017-06-30 | 2018-03-16 | 天津市中重科技工程有限公司 | Mm finishing mill unit front entrance side opening degree can adjust flipper guide device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139259A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Automatic deviation rectifying control method for finish rolling strip steel |
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