CN102825072A - Method for setting vertical roll gap by centering side guide plates, measuring width and correcting - Google Patents

Method for setting vertical roll gap by centering side guide plates, measuring width and correcting Download PDF

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Publication number
CN102825072A
CN102825072A CN2011101648484A CN201110164848A CN102825072A CN 102825072 A CN102825072 A CN 102825072A CN 2011101648484 A CN2011101648484 A CN 2011101648484A CN 201110164848 A CN201110164848 A CN 201110164848A CN 102825072 A CN102825072 A CN 102825072A
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China
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width
edger roll
control system
milling train
flipper guide
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CN2011101648484A
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CN102825072B (en
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孔伟
王全胜
张栋
林剑
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Baoshan Iron and Steel Co Ltd
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Baoshan Iron and Steel Co Ltd
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Abstract

The invention discloses a method for setting the vertical roll gap by centering side guide plates, measuring the width and correcting, comprising the following steps: receiving the size information of a steel plate by a secondary control system of a rolling mill, and calculating the pass plan, and judging whether a vertical column is used or not, wherein if the vertical column is used, the vertical-column pass process is carried out, and if the vertical column is not used, the non-vertical-column pass process is calculated. In the process of carrying out the vertical-column pass process, the width of the stretched and rolled steel plate is calculated, the steel plate is stretched and rolled according to the calculated width, and a side guide plate is centered. In the process of carrying out the non-vertical-column pass process, the width of the stretched and rolled steel plate is calculated, the steel plate is stretched and rolled according to the calculated width, and the side guide plate is centered, wherein in the process of centering the side plate, when the clamping force reaches the preset value, the opening degree of the side guide plate is measured and used as the actually-measured width, the actually-measured width is compared with the calculated width, and the vertical roll gap and the rolling force are adjusted according to the actually-measured width and the calculated width.

Description

Flipper guide centering is surveyed the method for wide correction edger roll intermesh determination
Technical field
The present invention relates to metallurgical industry field, relate in particular to the method that flipper guide centering in the slab production is surveyed wide correction edger roll intermesh determination.
Background technology
The heavy plate rolling size Control is the process that a slab rolling with certain size becomes the steel plate of certain size, and the width of steel plate is generally a lot of greatly than width of plate slab, and it is rolling to have a broadening.The modal mode that reaches the target plate size is two kinds of methods shown in Fig. 1 a and Fig. 1 b in the prior art.
First kind of mode is shown in Fig. 1 a, and be earlier that slab is rolling along its length, eliminates the deviation on the slab thickness direction, and it is rolling to carry out moulding MAS; Change steel then, utilize before the milling train or the flipper guide centering behind the milling train (center line that is about to the length direction of slab aligns with the center line of milling train); The slab broad ways is rolled; Being rolled down to changes steel, centering (promptly once more the center line of width of plate slab direction being alignd with the milling train center line) behind the target width once more, will be rolled into the target steel plate at last.
The second way is shown in Fig. 1 b; Slab changes steel earlier before rolling; Utilize the preceding flipper guide centering of milling train (promptly elder generation aligns the center line of the length direction of slab with the center line of milling train) then; After the centering slab broad ways is rolled, being rolled down to changes steel behind the target width, utilizes before the milling train or the flipper guide centering behind the milling train (center line that is about to the width of plate slab direction aligns with the milling train center line), is rolled into the target steel plate at last.
After the broadening process was accomplished, finish rolling stage edger roll side pressure technology was adopted in heavy plate rolling, and the edger roll passage generally is no more than two passages, and the steel plate width after broadening is finished carries out side pressure, improves width accuracy, improves with the stand out on the plate length direction.Edger roll is positioned at the milling train rear, uses the edger roll side pressure when anti-passage is rolling, and it is rolling to carry out horizontal roller with passage then.The device layout figure of edger roll is as shown in Figure 2.Apparatus arrangement is between heating furnace side and heat rectification machine side.The centre of equipment is a horizontal roller 202, and the rear side of horizontal roller 202 is edger rolls 204, has a pair of flipper guide 206 separately in the place ahead of horizontal roller 202 and the rear of edger roll 204.The concrete technology of this equipment is following: it is wide with effectively subtracting of edger roll to confirm that at first steel plate needs, and considers that in the broadening process this subtracts wide amount then, and using front spring to set width to edger roll after broadening finishes is that rolling target width+expectation subtracts wide amount; Edger roll subtracts wide amount on the estimation and carries out side pressure, guarantees that steel plate reaches rolling target width.
There is following weak point in prior art: the scene can't obtain actual steel plate width in this scheme in the operation of rolling.Be used for the steel plate width that the edger roll intermesh determination calculates and all come from calculated value, the Theoretical Calculation width error is bigger, can't play in the time of can causing the edger roll side pressure effectively to subtract widely, and the excessive situation of roll-force can occur.Because the influence of factors such as slab dimensional accuracy, width Model Calculation precision, there is certain deviation in the part steel plate width.The steel plate error of calculation below the rolling width 3m is: (10,30mm), the rolling width scope (3m, 3.8m) the steel plate error of calculation of scope be (20,50mm), the steel plate error of calculation that rolling width surpasses 3.8m for be (30,80mm).The operation of rolling does not have accurate width measure instrument, can't learn the steel plate developed width.When the steel plate developed width surpassed 40mm greater than the setting width, the actual lateral pressure amount of edger roll was bigger, and distortion does not have the effect that improves width accuracy when being easy to cause the steel plate side pressure, and What is more rotholz occurs; In addition, when width difference was very big, side pressure is rolling can to cause damage by opposite roller equipment.When Fig. 3 received side pressure big for steel plate, steel plate produced and laterally arches upward, and edger roll does not have the effect of revising width, and can influence the quality of edges of steel plate.
There are some existing heavy plate rolling technologies that this is improved, for example with reference to the flow chart of a kind of existing heavy plate rolling technology shown in Figure 4.In this technology, adopted the configuration of two-stage mill control system.Technical process is following:
At first the milling train second control system receives the dimension information of steel plate and calculates the passage plan.
Judge whether edger roll comes into operation, if edger roll comes into operation, then getting into has edger roll passage technology, if edger roll does not come into operation, then gets into no edger roll passage technology.
In no edger roll passage technology, shown in the right-hand branch of figure 4, carry out successively: the width after calculating steel plate broadening is rolling.It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out.After the rolling completion of broadening, change steel and get into the finish rolling stage, the milling train first class control system is carried out the operation of flipper guide centering.
In edger roll passage technology was arranged, shown in the left-hand branch of figure 4, carry out successively: the expectation that the milling train second control system calculates upright rod subtracted wide amount.Width after calculating steel plate broadening is rolling calculates total road number of times and stage that edger roll uses.It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out.After the rolling completion of broadening, change steel and get into the finish rolling stage, the milling train first class control system is carried out the operation of flipper guide centering.The milling train second control system is according to width adjustment edger roll roll gap and the roll-force calculated.Milling train first class control system and milling train second control system carry out the edger roll side pressure according to edger roll roll gap and roll-force, and this method finishes.
Increased the judgement edger roll in the logic control of this technology and whether used, and definite steel plate needs to subtract wide amount (overwidth) with the expectation of edger roll.Consider that in the broadening process this subtracts wide amount, broadening finishes the back and uses front spring molded breadth (Wc1) to subtract wide amount for rolling desired value (Wt)+expectation to edger roll; The edger roll side pressure was carried out in the rolling finish rolling stage; Model subtracts wide amount size according to current steel plate width, thickness and expectation and calculates the edger roll road number of times of the required use of edger roll and the roll gap speed and the roll-force of edger roll passage; After the edger roll side pressure is used, system default steel plate molded breadth (Wc2)=rolling desired value.Owing to considered to estimate to subtract wide amount; Heavy plate rolling technology than introducing has before had improvement; But in whole heavy plate rolling process; Employed steel plate width is all calculated value, and the not feedback of actual measured value, so edger roll width can't be revised and cause the second-rate problem of steel plate sidepiece still to exist.
Summary of the invention
The present invention is intended to propose a kind of steel plate width of actual measurement that utilizes heavy plate rolling technology is carried out improved method.
According to the present invention, the method that a kind of flipper guide centering is surveyed wide correction edger roll intermesh determination is proposed, comprise following step:
The milling train second control system receives the dimension information of steel plate, calculates the passage plan;
Judge whether edger roll comes into operation, if edger roll comes into operation, then getting into has edger roll passage technology, if edger roll does not come into operation, then gets into no edger roll passage technology;
In no edger roll passage technology, the width after calculating steel plate broadening is rolling carries out the rolling and flipper guide centering operation of broadening according to the width that calculates, and this method finishes then;
In edger roll passage technology is arranged; Width after calculating steel plate broadening is rolling; Carry out the rolling and flipper guide centering operation of broadening according to the width that calculates, when wherein chucking power reaches predetermined value in the operation of flipper guide centering, measure the aperture of flipper guide and the width of conduct actual measurement; The width of relatively surveying and the width of calculating are based on the width of actual measurement and the width adjustment edger roll roll gap and the roll-force of calculating.
In one embodiment, do not consider the side pressure of edger roll in the no edger roll passage technology, this no edger roll passage technology comprises:
Width after calculating steel plate broadening is rolling;
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out;
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering.
In one embodiment, have edger roll passage technology to comprise:
The expectation that the milling train second control system calculates upright rod subtracts wide amount;
Calculate the width of steel plate broadening after rolling, calculating total road number of times and the present stage of living in that edger roll uses and setting the edger roll passage is first passage behind the non-broadening;
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out;
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering;
The chucking power of detection side guide plate centering operation is measured the aperture of flipper guide and the width of conduct actual measurement when chucking power reaches predetermined value in the operation of flipper guide centering;
The width that the milling train second control system is relatively surveyed and the width of calculating, if the difference of the width of the width of actual measurement and calculating surpasses the scope of setting, the milling train second control system is according to the width adjustment edger roll roll gap and the roll-force of actual measurement; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, the milling train second control system is according to width adjustment edger roll roll gap and the roll-force calculated;
Milling train first class control system and milling train second control system carry out the edger roll side pressure according to edger roll roll gap and roll-force;
Side pressure finishes back milling train first class control system and carries out the operation of flipper guide centering once more, measures steel plate width, and this method finishes.
In one embodiment, the predetermined value of chucking power is 20 tons.The scope of the setting of the difference of the width of actual measurement and the width of calculating is 30mm-50mm.
In one embodiment, the data communication between milling train first class control system and the milling train second control system comprises:
The milling train second control system transmits to the milling train first class control system and surveys wide mark and flipper guide setting aperture;
The milling train first class control system will be surveyed wide mark and be converted in the flipper guide centering signal;
The milling train first class control system is carried out the operation of flipper guide centering, and flipper guide moves inward and contact steel plate;
The milling train first class control system utilizes the contact pressure of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours in contact pressure, and the position that utilizes position sensor to write down current flipper guide, this position are recorded in the buffer memory and zero clearing when setting next time;
Finish the operation of flipper guide centering, flipper guide outwards moves away steel plate;
The position that the milling train first class control system will be recorded in the buffer memory offers the milling train second control system, accomplishes one and takes turns data communication.
In one embodiment, for the steel plate of thickness less than 50mm, edger roll does not come into operation; For the steel plate of thickness more than or equal to 50mm, edger roll comes into operation.
The method that flipper guide centering of the present invention is surveyed wide correction edger roll intermesh determination is in the measurement that can effectively improve with steel plate width, and cause when effectively preventing the edger roll side pressure rolling unusual, edger roll equipment is protected.
Description of drawings
Fig. 1 a and Fig. 1 b have disclosed and have carried out two kinds of rolling usual ways of broadening in the prior art.
Fig. 2 has disclosed the device layout figure that uses edger roll to carry out side pressure in the prior art.
Fig. 3 has disclosed the situation that the prior art light plate is laterally arched upward by the bigger generation of side pressure.
Fig. 4 has disclosed a kind of flow chart of existing heavy plate rolling technology.
Fig. 5 has disclosed the flow chart of surveying the method for wide correction edger roll intermesh determination according to the flipper guide centering of one embodiment of the invention.
Fig. 6 has disclosed the process that communicates according to milling train first class control system in one embodiment of the invention and milling train second control system.
The specific embodiment
The present invention has disclosed the method that a kind of flipper guide centering is surveyed wide correction edger roll intermesh determination, and the developed width of in running, measuring steel plate comes the width that calculates is revised.This method comprises:
The milling train second control system receives the dimension information of steel plate, calculates the passage plan.
Judge whether edger roll comes into operation, if edger roll comes into operation, then getting into has edger roll passage technology, if edger roll does not come into operation, then gets into no edger roll passage technology.In one embodiment, the standard whether edger roll comes into operation depends on the thickness of steel plate, and for the steel plate of thickness less than 50mm, edger roll does not come into operation, and for the steel plate of thickness more than or equal to 50mm, edger roll comes into operation.
In no edger roll passage technology, the width after calculating steel plate broadening is rolling carries out the rolling and flipper guide centering operation of broadening according to the width that calculates, and this method finishes then.In one embodiment, do not consider the side pressure of edger roll in the no edger roll passage technology, no edger roll passage technology comprises following step:
Width after calculating steel plate broadening is rolling.
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out.
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering.
In edger roll passage technology is arranged; Width after calculating steel plate broadening is rolling; Carry out the rolling and flipper guide centering operation of broadening according to the width that calculates, when wherein chucking power reaches predetermined value in the operation of flipper guide centering, measure the aperture of flipper guide and the width of conduct actual measurement; The width of relatively surveying and the width of calculating are based on the width of actual measurement and the width adjustment edger roll roll gap and the roll-force of calculating.In one embodiment, have edger roll passage technology to comprise:
The expectation that the milling train second control system calculates upright rod subtracts wide amount.
Calculate the width of steel plate broadening after rolling, calculate total road number of times that edger roll uses with at present
Stage of living in and to set the edger roll passage be first passage behind the non-broadening.
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out.
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering.
The chucking power of detection side guide plate centering operation is measured the aperture of flipper guide and the width of conduct actual measurement when chucking power reaches predetermined value in the operation of flipper guide centering.In one embodiment, the predetermined value of chucking power is 20 tons.
The width that the milling train second control system is relatively surveyed and the width of calculating, if the difference of the width of the width of actual measurement and calculating surpasses the scope of setting, the milling train second control system is according to the width adjustment edger roll roll gap and the roll-force of actual measurement; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, the milling train second control system is according to width adjustment edger roll roll gap and the roll-force calculated.In one embodiment, the scope of the setting of the difference of the width of the width of actual measurement and calculating is 30mm-50mm.If accuracy standard is not very high, can the scope of the setting of the difference of the width of width and the calculating of actual measurement be chosen for 50mm, if accuracy standard is higher, then can be chosen for 30mm.
Milling train first class control system and milling train second control system carry out the edger roll side pressure according to edger roll roll gap and roll-force.
Side pressure finishes back milling train first class control system and carries out the operation of flipper guide centering once more, measures steel plate width, and this method finishes.
Fig. 5 has disclosed the flow chart of surveying the method for wide correction edger roll intermesh determination according to the flipper guide centering of one embodiment of the invention.Embodied the method that above-mentioned flipper guide centering is surveyed wide correction edger roll intermesh determination.
In concrete a realization, obtain the steel plate developed width in the centering action at flipper guide in carrying out the process that flipper guide centering surveys wide correction edger roll intermesh determination, and this measured value is used for the computation optimization width, realize feedback to system's developed width.
1. the precision of the position sensor of flipper guide is at 0.01mm, and machine error accumulative total is no more than 3mm, satisfies the required precision of width measure fully.
2. acquiescence is when flipper guide when chucking power reaches more than 20 tons during to light plate, and flipper guide contacts with steel plate fully, and flipper guide aperture (being recorded by position sensor) is identical with the hot width of steel plate, as surveying width W m;
3. flipper guide actual measurement width W m is sent to the milling train first class control system, and the milling train first class control system sends to the milling train second control system.Wherein, the communication flow of milling train first class control system and milling train second control system is as shown in Figure 6:
In conjunction with above-mentioned method, the data communication between milling train first class control system and the milling train second control system comprises:
The milling train second control system calculates.
The milling train second control system transmits to the milling train first class control system and surveys wide mark and flipper guide setting aperture.
The milling train first class control system will be surveyed wide mark and be converted in the flipper guide centering signal.
The milling train first class control system is carried out the operation of flipper guide centering, and flipper guide moves inward and contact steel plate.
The milling train first class control system utilizes the contact pressure of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours in contact pressure, and the position that utilizes position sensor to write down current flipper guide, this position are recorded in the buffer memory and zero clearing when setting next time.
Finish the operation of flipper guide centering, flipper guide outwards moves away steel plate.
The position that the milling train first class control system will be recorded in the buffer memory offers the milling train second control system, accomplishes one and takes turns data communication.
Measured actual measurement width W m when 4. the milling train second control system is according to flipper guide centering; Judge that whether actual steel plate width is much larger than molded breadth Wc1; Press the different size stepping; If when deviation surpasses certain limit (30-50mm), then will revise Wc1=Wm, opposite roller lateral pressure amount and passage recomputate.
5. after the edger roll side pressure finishes,, verify once more whether developed width reaches molded breadth, carry out side pressure, as reach then width control end like the still ultra wide edger roll passage that then resets of steel plate through the clamping of flipper guide.
Comprehensive, the method that flipper guide centering of the present invention is surveyed wide correction edger roll intermesh determination is improved aspect several following:
1) optimize the employed passage of edger roll, a time obtains surveying width before guaranteeing to set.Edger roll uses passage to be in the finish rolling stage, and after broadening was rolling, existing changeed the steel process, thus the regulation edger roll establish with first passage behind the non-broadening of passage so that the rolling width that the steel plate that flipper guide centering records is wide when being finishing pass.
2) definite moment of measuring actual steel plate width.After confirming that edger roll uses passage, confirm to send the passage of measuring the steel plate width instruction by the milling train second control system: in preceding a time of edger roll passage to the milling train first class control system; After each edger roll side pressure is used, before the next edger roll passage.
3) flipper guide centering is measured the method for deciding steel plate width.Preceding a time flipper guide centering mark that system uses at edger roll.When the flipper guide automated system was implemented flipper guide centering, the acquiescence chucking power reached 20 ton hours for when the front spring developed width, passes to milling train first class control system system.After the milling train first class control system obtains measuring actual steel plate width, feed back to the milling train second control system, the milling train second control system carries out the suboptimization of edger roll road again.
4) modification method of edger roll setting.At first the milling train second control system carries out cold and hot conversion (conversion coefficient is by the expansion curve decision of steel grade) to the actual measurement width that transmits, and converts cold conditions actual measurement width into.Set up ultra wide coefficient table, the branch specification is revised, and ultra wide coefficient below uses T to represent generally in the scope of (30-50mm).
If flipper guide cold conditions actual measurement width is smaller or equal to calculating cold conditions width+T, when the edger roll roll gap calculates:
Steel plate molded breadth=former molded breadth, setting does not change.
If flipper guide cold conditions actual measurement width is greater than calculating cold conditions width+T, the correction of edger roll roll gap:
Steel plate molded breadth=flipper guide is measured developed width.
Recomputate the required passage of edger roll side pressure and roll gap, roll-force etc.
5) set up iterative rules.After the edger roll side pressure finished, once more through the flipper guide clamping, whether the check width up to standard, not up to standardly then circulated 4) content, till wide requires.
End condition: the steel plate thickness minimum when edger roll uses is 50mm, and when steel plate thickness during less than 50mm, the edger roll passage is directly cancelled.
Introduce a concrete application example below:
Slab size: thickness 298mm, width 2100mm, length 3970mm.
Rolled plate target size: thickness 40.42mm, width 3208mm, length 10740mm.
Edger roll estimates to subtract wide amount 10mm; This specification, ultra wide coefficient is 30mm.
After broadening finishes, Model Calculation steel plate cold conditions width 3218, hot width is 3252mm
Edger roll is only set 1 passage, and edger roll is set roll gap: 3241mm,
Flipper guide centering measures steel plate width: 3289mm.
The cold conditions width of model conversation is: 3256mm
Wm=3256>3218 (calculating the cold conditions width)+30mm, but the edger roll extent of amendment exceeded,
Calculate cold conditions width=Wm=3259mm.Edger roll recomputates:
Edger roll is set 2 passages:
First passage, edger roll is set roll gap: 3265mm, second passage, edger roll is set roll gap: 3241mm.
After the first passage edger roll side pressure,
Molded breadth 3219mm, hot 3253mm
Flipper guide is measured width 3268mm, is converted into cold conditions 3233;
Not overruning in Wm=3233<3219 (calculating the cold conditions width)+30m m, still carries out according to former setting:
Second passage, edger roll is set roll gap: 3241mm.
After the second passage edger roll side pressure
Molded breadth 3208mm, hot 3241mm
Flipper guide is measured width 3248mm, is converted into cold conditions 3209;
Not overruning in Wm=3209<3208 (calculating the cold conditions width)+30mm, thinks to reach rolling target width that circulation finishes.
The method that flipper guide centering of the present invention is surveyed wide correction edger roll intermesh determination is in the measurement that can effectively improve with steel plate width, and cause when effectively preventing the edger roll side pressure rolling unusual, edger roll equipment is protected.

Claims (7)

1. a flipper guide centering is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, comprising:
The milling train second control system receives the dimension information of steel plate, calculates the passage plan;
Judge whether edger roll comes into operation, if edger roll comes into operation, then getting into has edger roll passage technology, if edger roll does not come into operation, then gets into no edger roll passage technology;
In no edger roll passage technology, the width after calculating steel plate broadening is rolling carries out the rolling and flipper guide centering operation of broadening according to the width that calculates, and said then method finishes;
In edger roll passage technology is arranged; Width after calculating steel plate broadening is rolling; Carry out the rolling and flipper guide centering operation of broadening according to the width that calculates, when wherein chucking power reaches predetermined value in the operation of flipper guide centering, measure the aperture of flipper guide and the width of conduct actual measurement; The width of relatively surveying and the width of calculating are based on the width of said actual measurement and the width adjustment edger roll roll gap and the roll-force of calculating.
2. flipper guide centering as claimed in claim 1 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, does not consider the side pressure of edger roll in the said no edger roll passage technology, and this no edger roll passage technology comprises:
Width after calculating steel plate broadening is rolling;
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out;
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering.
3. flipper guide centering as claimed in claim 1 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, said have edger roll passage technology to comprise:
The expectation that the milling train second control system calculates upright rod subtracts wide amount;
Calculate the width of steel plate broadening after rolling, calculating total road number of times and the present stage of living in that edger roll uses and setting the edger roll passage is first passage behind the non-broadening;
It is rolling that broadening is carried out in instruction from rolling action to the milling train first class control system that send to carry out;
After the rolling completion of broadening, change steel and get into the finish rolling stage, wherein the milling train first class control system is carried out the operation of flipper guide centering;
The chucking power of detection side guide plate centering operation is measured the aperture of flipper guide and the width of conduct actual measurement when chucking power reaches predetermined value in the operation of flipper guide centering;
The width that the milling train second control system is relatively surveyed and the width of calculating, if the difference of the width of the width of actual measurement and calculating surpasses the scope of setting, the milling train second control system is according to the width adjustment edger roll roll gap and the roll-force of actual measurement; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, the milling train second control system is according to width adjustment edger roll roll gap and the roll-force calculated;
Milling train first class control system and milling train second control system carry out the edger roll side pressure according to said edger roll roll gap and roll-force;
Side pressure finishes back milling train first class control system and carries out the operation of flipper guide centering once more, measures steel plate width, and said method finishes.
4. flipper guide centering as claimed in claim 3 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, the predetermined value of said chucking power is 20 tons.
5. flipper guide centering as claimed in claim 3 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, the scope of the setting of the difference of the width of said actual measurement and the width of calculating is 30mm-50mm.
6. flipper guide centering as claimed in claim 3 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that, the data communication between milling train first class control system and the milling train second control system comprises:
The milling train second control system transmits to the milling train first class control system and surveys wide mark and flipper guide setting aperture;
The milling train first class control system will be surveyed wide mark and be converted in the flipper guide centering signal;
The milling train first class control system is carried out the operation of flipper guide centering, and flipper guide moves inward and contact steel plate;
The milling train first class control system utilizes the contact pressure of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours in contact pressure, and the position that utilizes position sensor to write down current flipper guide, this position are recorded in the buffer memory and zero clearing when setting next time;
Finish the operation of flipper guide centering, flipper guide outwards moves away steel plate;
The position that the milling train first class control system will be recorded in the buffer memory offers the milling train second control system, accomplishes one and takes turns data communication.
7. flipper guide centering as claimed in claim 1 is surveyed the method for wide correction edger roll intermesh determination, it is characterized in that,
For the steel plate of thickness less than 50mm, edger roll does not come into operation;
For the steel plate of thickness more than or equal to 50mm, edger roll comes into operation.
CN201110164848.4A 2011-06-17 2011-06-17 Method for setting vertical roll gap by centering side guide plates, measuring width and correcting Active CN102825072B (en)

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CN201110164848.4A CN102825072B (en) 2011-06-17 2011-06-17 Method for setting vertical roll gap by centering side guide plates, measuring width and correcting

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CN102825072B CN102825072B (en) 2014-12-24

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CN103480648A (en) * 2013-09-18 2014-01-01 济钢集团有限公司 Novel PVPC (plan view pattern control) rolling process for surface plates
CN103934279A (en) * 2013-01-22 2014-07-23 宝山钢铁股份有限公司 Method for dynamic short-stroke control over width of slab from head to tail
CN103934287A (en) * 2013-01-22 2014-07-23 宝山钢铁股份有限公司 Method for precisely measuring width of steel plate at finish rolling outlet
CN104415972A (en) * 2013-08-30 2015-03-18 宝山钢铁股份有限公司 Comprehensive self-adaptive control method of width of rough rolling band steel
CN104942024A (en) * 2015-06-29 2015-09-30 山东钢铁股份有限公司 Hot continuous rolling production line finishing mill front vertical roller short stroke control method
CN105195525A (en) * 2014-06-25 2015-12-30 宝山钢铁股份有限公司 Combined rolling method capable of improving plan view pattern control
CN105642676A (en) * 2016-03-07 2016-06-08 首钢京唐钢铁联合有限责任公司 Method for conducting width model control by using side guide plate roll gap value
CN106269859A (en) * 2015-05-18 2017-01-04 宝山钢铁股份有限公司 A kind of heavy plate rolling method
CN106391701A (en) * 2016-09-21 2017-02-15 南京钢铁股份有限公司 Rolling method capable of increasing rolling yield of wide and thick plates
CN106694566A (en) * 2015-07-21 2017-05-24 宝山钢铁股份有限公司 Steel-sticking edging control method for edging mill
CN111250552A (en) * 2020-01-16 2020-06-09 首钢京唐钢铁联合有限责任公司 Method and device for avoiding deviation of plate blank
CN112439792A (en) * 2019-08-30 2021-03-05 宝山钢铁股份有限公司 Rough rolling width dynamic correction method based on vertical roll rolling force
CN113134515A (en) * 2020-01-17 2021-07-20 宝山钢铁股份有限公司 Method for controlling width of strip steel by utilizing front vertical roll of finishing mill in hot continuous rolling production line
CN113351658A (en) * 2021-06-28 2021-09-07 南京钢铁股份有限公司 Centering method for side guide plate of heavy and medium plate mill
CN113522996A (en) * 2020-04-21 2021-10-22 宝山钢铁股份有限公司 Method and device for automatically calibrating side guide plate of medium and heavy plate mill by using width gauge

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JPH11342411A (en) * 1998-05-29 1999-12-14 Nkk Corp Plate width control for thick steel plate
CN101585050A (en) * 2008-05-23 2009-11-25 宝山钢铁股份有限公司 A kind of opening degree control method of side guide plate of heavy plate mill
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103934279A (en) * 2013-01-22 2014-07-23 宝山钢铁股份有限公司 Method for dynamic short-stroke control over width of slab from head to tail
CN103934287A (en) * 2013-01-22 2014-07-23 宝山钢铁股份有限公司 Method for precisely measuring width of steel plate at finish rolling outlet
CN103934279B (en) * 2013-01-22 2016-02-24 宝山钢铁股份有限公司 The dynamic short stroke control method of slab head and tail width
CN103934287B (en) * 2013-01-22 2016-03-30 宝山钢铁股份有限公司 A kind of method of accurate measurement finish rolling outlet steel plate width
CN104415972B (en) * 2013-08-30 2016-08-24 宝山钢铁股份有限公司 A kind of comprehensive self-adaptation control method of rough rolling strip steel width
CN104415972A (en) * 2013-08-30 2015-03-18 宝山钢铁股份有限公司 Comprehensive self-adaptive control method of width of rough rolling band steel
CN103480648A (en) * 2013-09-18 2014-01-01 济钢集团有限公司 Novel PVPC (plan view pattern control) rolling process for surface plates
CN105195525A (en) * 2014-06-25 2015-12-30 宝山钢铁股份有限公司 Combined rolling method capable of improving plan view pattern control
CN106269859A (en) * 2015-05-18 2017-01-04 宝山钢铁股份有限公司 A kind of heavy plate rolling method
CN104942024A (en) * 2015-06-29 2015-09-30 山东钢铁股份有限公司 Hot continuous rolling production line finishing mill front vertical roller short stroke control method
CN106694566A (en) * 2015-07-21 2017-05-24 宝山钢铁股份有限公司 Steel-sticking edging control method for edging mill
CN106694566B (en) * 2015-07-21 2018-12-04 宝山钢铁股份有限公司 The edging control method of vertical miller steel-fastening
CN105642676A (en) * 2016-03-07 2016-06-08 首钢京唐钢铁联合有限责任公司 Method for conducting width model control by using side guide plate roll gap value
CN106391701A (en) * 2016-09-21 2017-02-15 南京钢铁股份有限公司 Rolling method capable of increasing rolling yield of wide and thick plates
CN112439792A (en) * 2019-08-30 2021-03-05 宝山钢铁股份有限公司 Rough rolling width dynamic correction method based on vertical roll rolling force
CN111250552A (en) * 2020-01-16 2020-06-09 首钢京唐钢铁联合有限责任公司 Method and device for avoiding deviation of plate blank
CN111250552B (en) * 2020-01-16 2022-01-18 首钢京唐钢铁联合有限责任公司 Method and device for avoiding deviation of plate blank
CN113134515A (en) * 2020-01-17 2021-07-20 宝山钢铁股份有限公司 Method for controlling width of strip steel by utilizing front vertical roll of finishing mill in hot continuous rolling production line
CN113522996A (en) * 2020-04-21 2021-10-22 宝山钢铁股份有限公司 Method and device for automatically calibrating side guide plate of medium and heavy plate mill by using width gauge
CN113351658A (en) * 2021-06-28 2021-09-07 南京钢铁股份有限公司 Centering method for side guide plate of heavy and medium plate mill

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