CN102825072B - 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
CN102825072B
CN102825072B CN201110164848.4A CN201110164848A CN102825072B CN 102825072 B CN102825072 B CN 102825072B CN 201110164848 A CN201110164848 A CN 201110164848A CN 102825072 B CN102825072 B CN 102825072B
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width
edger roll
control system
milling train
flipper guide
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CN102825072A (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 surveys the method for wide correction edger roll intermesh determination
Technical field
The present invention relates to milling train flipper guide centering technology, particularly relate to the method that flipper guide centering in Heavy plate production surveys wide correction edger roll intermesh determination.
Background technology
Heavy plate rolling size Control is a process becoming the steel plate of certain size with the slab rolling of certain size, and the width of steel plate is generally much larger compared with width of plate slab, has broadening rolling.In prior art, the modal mode of target plate size that reaches is for two kinds of methods shown in Fig. 1 a and Fig. 1 b.
First kind of way as shown in Figure 1a, first by slab rolling along its length, is eliminated the deviation on slab thickness direction, and is carried out shaping MAS rolling; Then turn steel, utilize before milling train or flipper guide centering (aliging with the center line of milling train by the center line of the length direction of slab) after milling train, slab is rolled in the width direction, again turn steel, centering (namely again being alignd with milling train center line by the center line in width of plate slab direction) after being rolled down to target width, finally will be rolled into target steel plate.
The second way as shown in Figure 1 b, before rolling, slab first turns steel, then the flipper guide centering before milling train (namely first being alignd with the center line of milling train by the center line of the length direction of slab) is utilized, after centering, slab is rolled in the width direction, turn steel after being rolled down to target width, utilize before milling train or flipper guide centering (center line by width of plate slab direction aligns with milling train center line) after milling train, be finally rolled into target steel plate.
After spreading process completes, heavy plate rolling adopts finish rolling stage vertical roller side compression technology, and edger roll passage is generally no more than two passages, and the steel plate width after terminating broadening carries out side pressure, improves width accuracy, improves the stand out on same plate length direction.Edger roll is positioned at milling train rear, uses edger roll side pressure, then carry out horizontal roller rolling with passage during anti-passes.The device layout figure of edger roll as shown in Figure 2.Apparatus arrangement is between heating furnace side and heat rectification machine side.The centre of equipment is horizontal roller 202, and the rear side of horizontal roller 202 is edger rolls 204, has a pair flipper guide 206 separately at the rear of the front of horizontal roller 202 and edger roll 204.The concrete technology of this equipment is as follows: first determine that steel plate need be wide with effectively subtracting of edger roll, then consider that this subtracts wide amount at spreading process, sets width as rolling target width+expectation subtract wide amount after broadening terminates to edger roll use front spring; Edger roll subtracts wide amount on the estimation and carries out side pressure, ensures that steel plate reaches rolling target width.
There is following weak point in prior art: in the program, scene cannot obtain actual steel plate width in the operation of rolling.Steel plate width for vertical rolls seam setup algorithm all comes from calculated value, and theory calculate width error is comparatively large, can cause cannot to play during edger roll side pressure effectively to subtract wide, and there will be the situation occurring that roll-force is excessive.Due to the impact of the factors such as size of plate blank precision, width model computational accuracy, there is certain deviation in part steel plate width.The steel plate error of calculation of below rolling width 3m is: (-10,30mm), and rolling width scope is at (3m, 3.8m) the steel plate error of calculation of scope is (-20,50mm), rolling width is (-30,80mm) more than the steel plate error of calculation of 3.8m.The operation of rolling, without accurate width measure instrument, cannot learn steel plate developed width.When steel plate developed width is greater than setting width more than 40mm, the actual lateral pressure amount of edger roll is comparatively large, and when being easy to cause steel plate side pressure, distortion does not have the effect improving width accuracy, and What is more occurs rotholz; In addition, when width difference is very large, side pressure rolling can cause damage by opposite roller equipment.Fig. 3 is steel plate when being subject to side pressure larger, and steel plate produces and laterally arches upward, and edger roll does not have the effect revising width, and can affect the quality of edges of steel plate.
There are some existing heavy plate rolling techniques to this has been improvement, such as, with reference to the flow chart of a kind of existing heavy plate rolling technique shown in figure 4.In the process, have employed the configuration of two-stage mill control system.Technical process is as follows:
First milling train second control system receives the dimension information of steel plate and calculates passage plan.
Judge whether edger roll comes into operation, if edger roll comes into operation, be then with edger roll passage technique, if edger roll does not come into operation, then enter without edger roll passage technique.
Without in edger roll passage technique, with reference to figure 4 right-hand branch shown in, perform successively: calculate the width after the rolling of steel plate broadening.Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling.After broadening rolling completes, turn steel and enter the finish rolling stage, milling train first class control system performs the operation of flipper guide centering.
Having in edger roll passage technique, with reference to figure 4 left-hand branch shown in, perform successively: milling train second control system calculates the expectation of edger roll and subtracts wide amount.Calculate the width after the rolling of steel plate broadening, calculate total road number of times and the stage of edger roll use.Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling.After broadening rolling completes, turn steel and enter the finish rolling stage, milling train first class control system performs the operation of flipper guide centering.Milling train second control system is according to the width adjustment edger roll roll gap calculated and roll-force.Milling train first class control system and milling train second control system carry out edger roll side pressure according to edger roll roll gap and roll-force, and the method terminates.
Add in the logic control of this technique and judge whether edger roll uses, and determine that steel plate need subtract wide amount (overwidth) with the expectation of edger roll.Consider that this subtracts wide amount at spreading process, after broadening terminates, subtract wide amount to edger roll use front spring molded breadth (Wc1) for rolling desired value (Wt)+expectation; The finish rolling stage that vertical roller side is pressed in rolling carries out, model subtracts according to current steel plate width, thickness and expectation roll gap speed and the roll-force that wide amount size calculates edger roll road number of times and the edger roll passage used needed for edger roll, after edger roll side pressure uses, system default steel plate molded breadth (Wc2)=rolling desired value.Wide amount is subtracted owing to considering expectation, improvement has been had than the heavy plate rolling technique introduced before, but in whole heavy plate rolling process, the steel plate width used is all calculated value, the not feedback of actual measured value, therefore edger roll width cannot 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 method utilizing the steel plate width of actual measurement to improve heavy plate rolling technique.
According to the present invention, propose a kind of method that flipper guide centering surveys wide correction edger roll intermesh determination, comprise following step:
Milling train second control system receives the dimension information of steel plate, calculates passage plan;
Judge whether edger roll comes into operation, if edger roll comes into operation, be then with edger roll passage technique, if edger roll does not come into operation, then enter without edger roll passage technique;
Without in edger roll passage technique, calculate the width after the rolling of steel plate broadening, carry out broadening rolling and the operation of flipper guide centering according to the width calculated, then the method terminates;
Having in edger roll passage technique, calculate the width after the rolling of steel plate broadening, broadening rolling and the operation of flipper guide centering is carried out according to the width calculated, when wherein in the operation of flipper guide centering, chucking power reaches predetermined value, measure the aperture of flipper guide also as the width of actual measurement, the relatively width of actual measurement and the width of calculating, based on width adjustment edger roll roll gap and the roll-force of the width of surveying and calculating.
In one embodiment, without the side pressure not considering edger roll in edger roll passage technique, this comprises without edger roll passage technique:
Calculate the width after the rolling of steel plate broadening;
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling;
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering.
In one embodiment, edger roll passage technique is had to comprise:
The expectation that milling train second control system calculates edger roll subtracts wide amount;
Calculate the width after the rolling of steel plate broadening, calculate total road number of times that edger roll uses and current residing stage to set edger roll passage be the first passage after non-broadening;
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling;
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering;
The chucking power of detection side guide plate centering operation, measures the aperture of flipper guide also as the width of actual measurement when chucking power reaches predetermined value in the operation of flipper guide centering;
Milling train second control system compares the width of actual measurement and the width of calculating, if the difference of the width of actual measurement and the width of calculating exceedes the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap of actual measurement and roll-force; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap calculated and roll-force;
Milling train first class control system and milling train second control system carry out edger roll side pressure according to edger roll roll gap and roll-force;
Side pressure terminates rear milling train first class control system and again performs the operation of flipper guide centering, and measure steel plate width, the method terminates.
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 milling train second control system comprises:
Milling train second control system transmits to milling train first class control system and surveys wide mark and flipper guide setting aperture;
The wide mark of survey is converted into one in flipper guide centering signal by milling train first class control system;
Milling train first class control system performs the operation of flipper guide centering, and flipper guide moves inward and contact steel plate;
Milling train first class control system utilizes the contact of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours at contact, utilizes position sensor record when the position of front-side guide plate, and this position is recorded in the buffer and reset when next time sets;
Terminate the operation of flipper guide centering, flipper guide outwards moves away steel plate;
Record position is in the buffer supplied to milling train second control system by milling train first class control system, completes one and takes turns data communication.
In one embodiment, thickness is less than to the steel plate of 50mm, edger roll does not come into operation; Thickness is more than or equal to the steel plate of 50mm, edger roll comes into operation.
The method that flipper guide centering of the present invention surveys wide correction edger roll intermesh determination effectively can improve the measurement with steel plate width, and effectively prevents the rolling that causes during edger roll side pressure abnormal, and edger roll equipment is protected.
Accompanying drawing explanation
Fig. 1 a and Fig. 1 b discloses in prior art the two kinds of usual ways carrying out broadening rolling.
Fig. 2 discloses in prior art the device layout figure using edger roll to carry out side pressure.
Fig. 3 discloses prior art light plate and produces situation about laterally arching upward by side pressure is larger.
Fig. 4 discloses a kind of flow chart of existing heavy plate rolling technique.
Fig. 5 discloses the flow chart of the method surveying wide correction edger roll intermesh determination according to the flipper guide centering of one embodiment of the invention.
Fig. 6 discloses and carries out according to milling train first class control system in one embodiment of the invention and milling train second control system the process that communicates.
Detailed description of the invention
Present invention is disclosed a kind of method that flipper guide centering surveys wide correction edger roll intermesh determination, the developed width measuring steel plate in running is revised the width calculated.The method comprises:
Milling train second control system receives the dimension information of steel plate, calculates passage plan.
Judge whether edger roll comes into operation, if edger roll comes into operation, be then with edger roll passage technique, if edger roll does not come into operation, then enter without edger roll passage technique.In one embodiment, the standard whether edger roll comes into operation depends on the thickness of steel plate, and thickness is less than to the steel plate of 50mm, edger roll does not come into operation, and thickness is more than or equal to the steel plate of 50mm, edger roll comes into operation.
Without in edger roll passage technique, calculate the width after the rolling of steel plate broadening, carry out broadening rolling and the operation of flipper guide centering according to the width calculated, then the method terminates.In one embodiment, without the side pressure not considering edger roll in edger roll passage technique, following step is comprised without edger roll passage technique:
Calculate the width after the rolling of steel plate broadening.
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling.
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering.
Having in edger roll passage technique, calculate the width after the rolling of steel plate broadening, broadening rolling and the operation of flipper guide centering is carried out according to the width calculated, when wherein in the operation of flipper guide centering, chucking power reaches predetermined value, measure the aperture of flipper guide also as the width of actual measurement, the relatively width of actual measurement and the width of calculating, based on width adjustment edger roll roll gap and the roll-force of the width of surveying and calculating.In one embodiment, edger roll passage technique is had to comprise:
The expectation that milling train second control system calculates edger roll subtracts wide amount.
Calculate the width after the rolling of steel plate broadening, calculate total road number of times that edger roll uses and current residing stage to set edger roll passage be the first passage after non-broadening.
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling.
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering.
The chucking power of detection side guide plate centering operation, measures the aperture of flipper guide also as the width of 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.
Milling train second control system compares the width of actual measurement and the width of calculating, if the difference of the width of actual measurement and the width of calculating exceedes the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap of actual measurement and roll-force; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap calculated and roll-force.In one embodiment, the scope of the setting of the difference of the width of actual measurement and the width of calculating is 30mm-50mm.If accuracy standard is not very high, the scope of the setting of the difference of the width of the width of actual measurement and calculating can 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 edger roll side pressure according to edger roll roll gap and roll-force.
Side pressure terminates rear milling train first class control system and again performs the operation of flipper guide centering, and measure steel plate width, the method terminates.
Fig. 5 discloses the flow chart of the method surveying wide correction edger roll intermesh determination according to the flipper guide centering of one embodiment of the invention.Embody the method that above-mentioned flipper guide centering surveys wide correction edger roll intermesh determination.
In a specific implementation, in the centering action that execution flipper guide centering is surveyed at flipper guide in the process of wide correction edger roll intermesh determination, obtain steel plate developed width, and this measured value is used for optimizing molded breadth, realize the feedback to system developed width.
1. the precision of the position sensor of flipper guide is at 0.01mm, and machine error is accumulative is no more than 3mm, meets the required precision of width measure completely.
2. acquiescence is when flipper guide reaches more than 20 tons chucking power during light plate, and flipper guide contacts with steel plate completely, and flipper guide aperture (being recorded by position sensor) is identical with the hot width of steel plate, as actual measurement width W m;
3. flipper guide actual measurement width W m is sent to milling train first class control system, and milling train first class control system sends to 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 milling train second control system comprises:
Milling train second control system calculates.
Milling train second control system transmits to milling train first class control system and surveys wide mark and flipper guide setting aperture.
The wide mark of survey is converted into one in flipper guide centering signal by milling train first class control system.
Milling train first class control system performs the operation of flipper guide centering, and flipper guide moves inward and contact steel plate.
Milling train first class control system utilizes the contact of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours at contact, utilizes position sensor record when the position of front-side guide plate, and this position is recorded in the buffer and reset when next time sets.
Terminate the operation of flipper guide centering, flipper guide outwards moves away steel plate.
Record position is in the buffer supplied to milling train second control system by milling train first class control system, completes one and takes turns data communication.
4. milling train second control system is according to actual measurement width W m measured during flipper guide centering, judge that whether actual steel plate width is much larger than molded breadth Wc1, by different size stepping, if when deviation exceedes certain limit (30-50mm), then will revise Wc1=Wm, opposite roller lateral pressure amount and passage recalculate.
5. after edger roll side pressure terminates, by the clamping of flipper guide, again verify whether developed width reaches molded breadth, and carry out side pressure as steel plate still ultra-wide then resets edger roll passage, as reached, width control system terminates.
Comprehensive, the flipper guide centering of the present invention method of surveying wide correction edger roll intermesh determination following several in improve:
1) optimize the passage that edger roll uses, before ensureing setting, a time obtains surveying width.Edger roll uses passage to be in the finish rolling stage, after broadening rolling, exists and turns steel process, so regulation edger roll is established by the first passage after passage non-broadening so that the steel plate that records of flipper guide centering wide be rolling width during finishing pass.
2) moment of measuring actual steel plate width is determined.After determining that edger roll uses passage, determined to send to milling train first class control system the passage measuring steel plate width instruction by milling train second control system: a time before edger roll passage; After each edger roll side pressure uses, before next edger roll passage.
3) flipper guide Alignment measuring determines the method for steel plate width.System is a time flipper guide centering mark before edger roll uses.When flipper guide automated system implements flipper guide centering, acquiescence chucking power reaches 20 ton hours for working as front spring developed width, passes to milling train first class control system system.Milling train first class control system obtains after measurement obtains actual steel plate width, and feed back to milling train second control system, milling train second control system carries out the suboptimization of edger roll road again.
4) modification method of edger roll setting.First milling train second control system carries out cold and hot conversion (conversion coefficient is determined by the expansion curve of steel grade) to the actual measurement width transmitted, and is converted to cold conditions actual measurement width.Set up ultra-wide coefficient table, a point specification is revised, and ultra-wide coefficient, generally in the scope of (30-50mm), below uses T to represent.
If flipper guide cold conditions actual measurement width is less than or equal to calculate cold conditions width+T, when 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 calculate cold conditions width+T, the correction of edger roll roll gap:
Steel plate molded breadth=flipper guide measures developed width.
Recalculate passage and roll gap, roll-force etc. needed for edger roll side pressure.
5) iterative rules is set up.After edger roll side pressure terminates, again clamped by flipper guide, inspection width whether up to standard, not up to standard, circulate 4) content, until width meets the requirements.
End condition: steel plate thickness when edger roll uses is minimum is 50mm, and when steel plate thickness is less than 50mm, edger roll passage is directly cancelled.
Introduce a concrete application example below:
Size of plate blank: thickness 298mm, width 2100mm, length 3970mm.
Rolled plate target size: thickness 40.42mm, width 3208mm, length 10740mm.
Edger roll is estimated to subtract wide amount 10mm; This specification, ultra-wide coefficient is 30mm.
After broadening terminates, model calculates steel plate cold conditions width 3218mm, and hot width is 3252mm
Edger roll only sets 1 passage, edger roll setting roll gap: 3241mm,
Flipper guide Alignment measuring obtains steel plate width: 3289mm.
The cold conditions width of model conversation is: 3256mm
Wm=3256mm>3218mm (calculate cold conditions width)+30mm, exceeding edger roll can extent of amendment,
Calculate cold conditions width=Wm=3259mm.Edger roll recalculates:
Edger roll sets 2 passages:
First passage, edger roll setting roll gap: 3265mm, the second passage, edger roll setting roll gap: 3241mm.
After first passage vertical roller side pressure,
Molded breadth 3219mm, hot 3253mm
Flipper guide measures width 3268mm, is converted into cold conditions 3233mm;
Wm=3233mm<3219mm (calculating cold conditions width)+30mm, does not overrun, still performs according to former setting:
Second passage, edger roll setting roll gap: 3241mm.
After second passage vertical roller side pressure
Molded breadth 3208mm, hot 3241mm
Flipper guide measures width 3248mm, is converted into cold conditions 3209mm;
Wm=3209mm<3208mm (calculating cold conditions width)+30mm, do not overrun, think and reach rolling target width, circulation terminates.
The method that flipper guide centering of the present invention surveys wide correction edger roll intermesh determination effectively can improve the measurement with steel plate width, and effectively prevents the rolling that causes during edger roll side pressure abnormal, and edger roll equipment is protected.

Claims (7)

1. flipper guide centering surveys a method for wide correction edger roll intermesh determination, it is characterized in that, comprising:
Milling train second control system receives the dimension information of steel plate, calculates passage plan;
Judge whether edger roll comes into operation, if edger roll comes into operation, be then with edger roll passage technique, if edger roll does not come into operation, then enter without edger roll passage technique;
Without in edger roll passage technique, calculate the width after the rolling of steel plate broadening, carry out broadening rolling and the operation of flipper guide centering according to the width calculated, then described method terminates;
Having in edger roll passage technique, calculate the width after the rolling of steel plate broadening, broadening rolling and the operation of flipper guide centering is carried out according to the width calculated, when wherein in the operation of flipper guide centering, chucking power reaches predetermined value, measure the aperture of flipper guide also as the width of actual measurement, the relatively width of actual measurement and the width of calculating, based on the width of described actual measurement and the width adjustment edger roll roll gap of calculating and roll-force.
2. flipper guide centering as claimed in claim 1 surveys the method for wide correction edger roll intermesh determination, and it is characterized in that, the described side pressure without not considering edger roll in edger roll passage technique, this comprises without edger roll passage technique:
Calculate the width after the rolling of steel plate broadening;
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling;
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering.
3. flipper guide centering as claimed in claim 1 surveys the method for wide correction edger roll intermesh determination, it is characterized in that, described in have edger roll passage technique to comprise:
The expectation that milling train second control system calculates edger roll subtracts wide amount;
Calculate the width after the rolling of steel plate broadening, calculate total road number of times that edger roll uses and current residing stage to set edger roll passage be the first passage after non-broadening;
Send to milling train first class control system the instruction performing rolling action and carry out broadening rolling;
After broadening rolling completes, turn steel and enter the finish rolling stage, wherein milling train first class control system performs the operation of flipper guide centering;
The chucking power of detection side guide plate centering operation, measures the aperture of flipper guide also as the width of actual measurement when chucking power reaches predetermined value in the operation of flipper guide centering;
Milling train second control system compares the width of actual measurement and the width of calculating, if the difference of the width of actual measurement and the width of calculating exceedes the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap of actual measurement and roll-force; If the difference of the width of actual measurement and the width of calculating is no more than the scope of setting, milling train second control system is according to the width adjustment edger roll roll gap calculated and roll-force;
Milling train first class control system and milling train second control system carry out edger roll side pressure according to described edger roll roll gap and roll-force;
Side pressure terminates rear milling train first class control system and again performs the operation of flipper guide centering, and measure steel plate width, described method terminates.
4. flipper guide centering as claimed in claim 3 surveys the method for wide correction edger roll intermesh determination, and it is characterized in that, the predetermined value of described chucking power is 20 tons.
5. flipper guide centering as claimed in claim 3 surveys the method for wide correction edger roll intermesh determination, and it is characterized in that, the scope of the setting of the difference of the width of described actual measurement and the width of calculating is 30mm-50mm.
6. flipper guide centering as claimed in claim 3 surveys the method for wide correction edger roll intermesh determination, and it is characterized in that, the data communication between milling train first class control system and milling train second control system comprises:
Milling train second control system transmits to milling train first class control system and surveys wide mark and flipper guide setting aperture;
The wide mark of survey is converted into one in flipper guide centering signal by milling train first class control system;
Milling train first class control system performs the operation of flipper guide centering, and flipper guide moves inward and contact steel plate;
Milling train first class control system utilizes the contact of pressure sensor detection side guide plate and steel plate, reaches 20 ton hours at contact, utilizes position sensor record when the position of front-side guide plate, and this position is recorded in the buffer and reset when next time sets;
Terminate the operation of flipper guide centering, flipper guide outwards moves away steel plate;
Record position is in the buffer supplied to milling train second control system by milling train first class control system, completes one and takes turns data communication.
7. flipper guide centering as claimed in claim 1 surveys the method for wide correction edger roll intermesh determination, it is characterized in that,
Thickness is less than to the steel plate of 50mm, edger roll does not come into operation;
Thickness is more than or equal to the steel plate of 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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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
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