CN115041528A - Correction method for thickness deviation between steel coil rolls - Google Patents

Correction method for thickness deviation between steel coil rolls Download PDF

Info

Publication number
CN115041528A
CN115041528A CN202210693608.1A CN202210693608A CN115041528A CN 115041528 A CN115041528 A CN 115041528A CN 202210693608 A CN202210693608 A CN 202210693608A CN 115041528 A CN115041528 A CN 115041528A
Authority
CN
China
Prior art keywords
thickness
rolling
correction
sample plate
compensation coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210693608.1A
Other languages
Chinese (zh)
Inventor
刘玉金
郭子健
马铮
李运来
马立升
李连杰
胡志远
侍爱臣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shougang Zhixin QianAn Electromagnetic Materials Co Ltd
Original Assignee
Shougang Zhixin QianAn Electromagnetic Materials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shougang Zhixin QianAn Electromagnetic Materials Co Ltd filed Critical Shougang Zhixin QianAn Electromagnetic Materials Co Ltd
Priority to CN202210693608.1A priority Critical patent/CN115041528A/en
Publication of CN115041528A publication Critical patent/CN115041528A/en
Pending legal-status Critical Current

Links

Images

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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge control
    • 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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined programme
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

The embodiment of the application provides a method for correcting thickness deviation between steel coil rolls, which comprises the following steps: manufacturing a correction sample plate of a mark steel coil to be corrected, and determining the sample plate thickness mean value of the correction sample plate; calibrating at least one group of thickness gauges of the rolling unit through the correction sample plate to obtain the measured thickness of each thickness gauge aiming at the correction sample plate; determining a first compensation coefficient of each thickness gauge according to the measured thickness and the average value of the sample plate thickness; acquiring the overall thickness average value of the steel coils of each rolling unit, and correspondingly determining a second compensation coefficient of each rolling unit according to the overall thickness average value and the measured thickness; and correspondingly determining the thickness correction coefficient of each rolling unit based on the first compensation coefficient and the second compensation coefficient, wherein the thickness correction coefficient is used for correcting the rolling thickness of each rolling unit. The application provides a technical scheme reduces the thickness deviation between rolling to a certain extent to improve the specification uniformity of rolling products.

Description

Correction method for thickness deviation between steel coil rolls
Technical Field
The application relates to the technical field of rolling, in particular to a method for correcting thickness deviation between steel coil rolls.
Background
In steel enterprises, a plurality of rolling units are usually arranged, and different rolling units can roll steel coils with the same mark according to rolling capacity and order conditions. Because the thickness gauges of different rolling mills are different and the thickness control precision is different, the thickness deviation exists between the steel coils.
Therefore, a correction method for thickness deviation between steel coil rolls is urgently needed by those skilled in the art, so as to reduce the thickness deviation between the steel coil rolls to a certain extent, and further improve the specification consistency of rolled products.
Disclosure of Invention
The embodiment of the application provides a correction method for thickness deviation between steel coil rolls, and further reduces the thickness deviation between the rolls at least to a certain extent, so that the specification consistency of rolled products is improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of an embodiment of the present application, there is provided a method for correcting a thickness deviation between steel coils, the method including: manufacturing a correction sample plate of a mark steel coil to be corrected, and determining the sample plate thickness mean value of the correction sample plate; calibrating at least one group of thickness gauges of the rolling unit through the correction sample plate to obtain the measured thickness of each thickness gauge aiming at the correction sample plate; determining a first compensation coefficient of each thickness gauge according to the measured thickness and the sample plate thickness mean value, wherein the first compensation coefficient is used for representing the measurement deviation among the thickness gauges; acquiring an integral thickness average value of steel coils of each rolling unit, and correspondingly determining a second compensation coefficient of each rolling unit according to the integral thickness average value and the measured thickness, wherein the second compensation coefficient is used for representing rolling thickness deviation among the rolling units; and correspondingly determining the thickness correction coefficient of each rolling unit based on the first compensation coefficient and the second compensation coefficient, wherein the thickness correction coefficient is used for correcting the rolling thickness of each rolling unit.
In some embodiments of the present application, the manufacturing of the correction template for a steel coil with a mark to be corrected includes: sampling is carried out at a position 30m away from the tail of the steel coil to be corrected, and a correction sample plate of 100mm x 100mm is cut in the middle of the width of the steel coil.
In some embodiments of the present application, the determining the mean thickness of the correction template comprises: detecting the thickness of at least one position of the correction sample plate by using a thin plate thickness gauge; and calculating the mean thickness of the correction sample plate according to the thickness of each position.
In some embodiments of the present application, the detecting the thickness of the correction template at least one position by using a sheet thickness gauge includes: and respectively detecting the positions 10mm away from the 4 vertexes and the thickness of the middle points of the four sides on the correction sample plate by using a thin plate thickness gauge.
In some embodiments of the present application, the determining a first compensation factor for each thickness gauge according to the mean of the measured thickness and the template thickness comprises: calculating a first compensation coefficient of each thickness gauge according to the following formula:
β i ＝(h 0avg -H ki) /H ki
wherein beta is i A first compensation coefficient h of a thickness gauge corresponding to the ith rolling mill train 0avg Is the mean thickness of the sample plate, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
In some embodiments of the present application, the obtaining the overall thickness average value of the steel coils of each rolling unit includes: and obtaining the thickness curve data of the steel coils of each rolling unit in the next procedure by using the same thickness gauge, and calculating the overall thickness average value of the steel coils of each rolling unit according to the thickness curve data.
In some embodiments of the present application, said determining a second compensation factor for each rolling train according to said overall thickness mean and said measured thickness comprises: determining a thickness reference value according to the overall thickness average value and the rolling target thickness; calculating the thickness deviation value of each overall thickness mean value and the thickness reference value; and correspondingly determining a second compensation coefficient of each rolling unit according to the thickness deviation value and the measured thickness.
In some embodiments of the present application, the determining a thickness reference value according to the overall thickness mean and the rolling target thickness includes: and selecting the integral thickness average value with the minimum deviation from the rolling target thickness as a thickness reference value.
In some embodiments of the present application, determining a second compensation factor for each rolling train in response to said thickness deviation value and said measured thickness comprises: calculating a second compensation coefficient of each rolling unit according to the following formula:
σ i ＝δh ai /H ki
wherein σ i For a second compensation factor, δ h, of the i-th rolling train ai Thickness deviation value of i-th rolling mill set, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
In some embodiments of the present application, said correspondingly determining the thickness correction factor for each rolling train based on said first compensation factor and said second compensation factor comprises: calculating the thickness correction coefficient of each rolling unit according to the following formula:
γ i ＝β i -σ i
wherein, beta i First compensation coefficient, sigma, of thickness gauge corresponding to ith rolling mill train i And the second compensation coefficient is the second compensation coefficient of the ith group of rolling units.
Based on the scheme, the application has at least the following advantages or progresses:
according to the technical scheme provided by some embodiments of the application, the deviation between the thickness gauges of the rolling units is determined by manufacturing the correction sample plate, the rolling deviation between the rolling units is determined by measuring the rolling deviation between the rolling units, the inter-roll thickness deviation between the rolling units is determined, and the subsequent rolling is controlled, so that the inter-roll thickness deviation of the rolling units can be effectively reduced, and the specification consistency of rolled products is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a flow chart illustrating a method for correcting thickness variations between coils of steel according to one embodiment of the present application;
FIG. 2 shows a simplified diagram of a proof template made in one embodiment of the present application;
FIG. 3 illustrates a flow chart of a method for correcting thickness variations between coils of steel according to one embodiment of the present application;
FIG. 4 is a flow chart illustrating a method for correcting thickness variations between coils of steel according to one embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It should be noted that: reference herein to "a plurality" means two or more. "and/or" describe the association relationship of the associated objects, meaning that there may be three relationships, e.g., A and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Please refer to fig. 1.
Fig. 1 shows a flowchart of a method for correcting thickness deviation between coils of steel according to an embodiment of the present application, which may include steps S101-S105:
and S101, manufacturing a correction sample plate of the grade steel coil to be corrected, and determining the sample plate thickness mean value of the correction sample plate.
And S102, calibrating the thickness gauges of at least one group of rolling units through the correction sample plate, and obtaining the measured thickness of each thickness gauge aiming at the correction sample plate.
And S103, determining a first compensation coefficient of each thickness gauge according to the measured thickness and the sample plate thickness mean value, wherein the first compensation coefficient is used for representing the measurement deviation among the thickness gauges.
And S104, acquiring an integral thickness average value of the steel coils of each rolling unit, and correspondingly determining a second compensation coefficient of each rolling unit according to the integral thickness average value and the measured thickness, wherein the second compensation coefficient is used for representing rolling thickness deviation among the rolling units.
And step S105, correspondingly determining the thickness correction coefficient of each rolling unit based on the first compensation coefficient and the second compensation coefficient, wherein the thickness correction coefficient is used for correcting the rolling thickness of each rolling unit.
In the method, the deviation between the thickness gauges of the rolling units is determined by manufacturing the correction sample plate, the rolling deviation between the rolling units is determined by measuring the rolling deviation between the rolling units, the inter-roll thickness deviation between the rolling units is determined, the follow-up rolling is controlled, the inter-roll thickness deviation of the rolling units can be effectively reduced, and the specification consistency of rolled products is improved.
Please refer to fig. 2.
Fig. 2 shows a simplified diagram of a correction template, 201 is a sampling position of the correction template, in an embodiment of the present application, and the method for manufacturing the correction template of the grade steel coil to be corrected may include: sampling is carried out at a position 30m away from the tail of the brand steel coil to be corrected, and a correction sample plate of 100mm x 100mm is cut in the middle of the width of the steel coil.
Please refer to fig. 3.
Fig. 3 is a flowchart illustrating a method for correcting thickness deviation between coils of steel according to an embodiment of the present application, where the method for determining a mean value of gauge thickness of the correction gauge may include steps S301 to S302:
and S301, detecting the thickness of at least one position of the correction sample plate by using a thin plate thickness gauge.
Step S302, calculating the mean thickness of the correction template according to the thickness of each position.
In this embodiment, the method for detecting the thickness of at least one position of the correction template by using a thin plate thickness gauge includes: and respectively detecting the positions 10mm away from the 4 vertexes and the thickness of the middle points of the four sides on the correction sample plate by using a thin plate thickness gauge.
In an embodiment of the application, the determining a first compensation factor for each thickness gauge according to the measured thickness and the mean value of the sample plate thicknesses includes:
calculating a first compensation coefficient of each thickness gauge according to the following formula:
β i ＝(h 0avg -H ki) /H ki
wherein, beta i For thickness gauges corresponding to the ith rolling mill trainA compensation factor, h 0avg Is the mean thickness of the sample plate, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
In an embodiment of the present application, the method for obtaining the overall thickness average of the steel coils of each rolling mill train may include: and obtaining the thickness curve data of the steel coils of each rolling unit in the next procedure by using the same thickness gauge, and calculating the overall thickness average value of the steel coils of each rolling unit according to the thickness curve data.
Please refer to fig. 4.
Fig. 4 shows a flowchart of a method for correcting thickness deviations between steel coils according to an embodiment of the present application, and the method for correspondingly determining the second compensation factors of each rolling train according to the overall thickness mean and the measured thickness may include steps S401 to S403:
and S401, determining a thickness reference value according to the overall thickness average value and the rolling target thickness.
And step S402, calculating the thickness deviation value of each overall thickness average value and the thickness reference value.
And S403, correspondingly determining a second compensation coefficient of each rolling unit according to the thickness deviation value and the measured thickness.
In the present application, the overall thickness average value that has the smallest deviation from the rolling target thickness may be selected as the thickness reference value.
In an embodiment of the present application, the method for determining the second compensation factor for each rolling train according to the thickness deviation value and the measured thickness may comprise:
calculating a second compensation coefficient of each rolling unit according to the following formula:
σ i ＝δh ai /H ki
wherein σ i For a second compensation factor, δ h, of the i-th rolling train ai Thickness deviation value of i-th rolling mill set, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
In an embodiment of the present application, said correspondingly determining the thickness correction factor of each rolling train based on the first compensation factor and the second compensation factor comprises:
calculating the thickness correction coefficient of each rolling unit according to the following formula:
γ i ＝β i -σ i
wherein, beta i First compensation coefficient, sigma, of thickness gauge corresponding to ith rolling mill train i And the second compensation coefficient is the second compensation coefficient of the ith group of rolling units.
In order that those skilled in the art may more fully understand the present application, a full description of the embodiments below is provided.
The existing rolling production line comprises 1 st to 4 th rolling units, samples are taken at a position 30m away from the tail of a cold and hard coiled strip rolled by a rolling mill, a square sample of 100mm x 100mm is cut in the middle of the width of the strip, the thickness of a correction sample plate is detected by a thin plate thickness gauge, and the thickness of the middle point of the four sides and the position 10mm away from 4 vertexes is respectively as follows:
h 01 ＝0.601mm；
h 02 ＝0.602mm；
h 03 ＝0.600mm；
h 04 ＝0.601mm；
h 05 ＝0.600mm；
h 06 ＝0.600mm；
h 07 ＝0.601mm；
h 08 ＝0.602mm；
thereby calculating the thickness average h of the sample plate 0avg ＝(h01+h02+...+h0j)/j＝0.601mm，j＝8。
Calibrating at least one group of thickness gauges of the rolling unit through the correction sample plate, and obtaining the measured thickness of each thickness gauge aiming at the correction sample plate:
H k1 ＝0.658mm；
H k2 ＝0.646mm；
H k3 ＝0.651mm；
H k4 ＝0.649mm；
then, the first compensation factor β i of the thickness gauges corresponding to the 1 st to 4 th rolling stands is calculated (h) 0avg -H ki )/H ki ：
β1＝(0.601-0.658)/0.658＝-0.0866；
β2＝(0.601-0.646)/0.646＝-0.06966；
β3＝(0.601-0.651)/0.651＝-0.0768；
β4＝(0.601-0.649)/0.649＝-0.0739。
Obtaining the overall thickness average h of the steel coils of each rolling unit aavgi ：
h aavg1 ＝0.6003mm，
h aavg2 ＝0.6021mm，
h aavg3 ＝0.5995mm，
h aavg4 ＝0.6013mm，
And correspondingly determining a second compensation coefficient of each rolling unit according to the overall thickness average value and the measured thickness, wherein the second compensation coefficient is used for representing the rolling thickness deviation among the rolling units. The thickness value of the 1 st rolling mill group with the minimum deviation of 0.6mm from the rolling target thickness can be selected as a thickness reference value, namely 0.6003mm, and each overall thickness average value h is calculated aavgi And the thickness reference value h aavg0 Thickness deviation value δ h of ai ＝(haavgi-haavg0)：
δh a2 ＝(h aavg2 -h aavg0 )＝(0.6021-0.6003)＝0.0018mm；
δh a3 ＝-0.0008mm；
δh a4 ＝0.001mm。
According to the overall thickness mean value and the measured thickness, correspondingly determining a second compensation coefficient of each rolling unit, and calculating an alloy compensation coefficient correction value sigma of a thickness gauge of each rolling unit i ，
σ 1 ＝δh ai /H ki ＝0/0.658＝0；
σ 2 ＝0.0018/0.646＝0.0028；
σ 3 ＝-0.0008/0.651＝-0.0012；
σ 4 ＝0.001/0.649＝0.0015。
Correspondingly determining the thickness correction coefficient gamma of each rolling unit based on the first compensation coefficient and the second compensation coefficient i 。
γ i ＝β i -σ i ,
γ 1 ＝-0.0866+0＝-0.0866；
γ 2 ＝-0.06966-0.0028＝-0.0725；
γ 3 ＝-0.0768-(-0.0012)＝-0.0756；
γ 4 ＝-0.0739-0.0015＝-0.0754。
Will gamma i The secondary systems of the 1 st to fourth rolling stands were entered for the actual rolling, so that the thickness target values were the same.
The application provides a method for reducing thickness deviation between coils, which is applied to cold rolling production control and comprises the steps of sample plate manufacturing, sample plate calibration, thickness difference calculation and alloy compensation coefficient correction, so that the aim of reducing the thickness deviation between the coils of the same-grade steel coils rolled by different rolling units is achieved, and the thickness consistency is improved.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A method for correcting thickness deviation between steel coils is characterized by comprising the following steps:
manufacturing a correction sample plate of a mark steel coil to be corrected, and determining the sample plate thickness mean value of the correction sample plate;
calibrating at least one group of thickness gauges of the rolling unit through the correction sample plate to obtain the measured thickness of each thickness gauge aiming at the correction sample plate;
determining a first compensation coefficient of each thickness gauge according to the measured thickness and the sample plate thickness mean value, wherein the first compensation coefficient is used for representing the measurement deviation among the thickness gauges;
acquiring an integral thickness average value of steel coils of each rolling unit, and correspondingly determining a second compensation coefficient of each rolling unit according to the integral thickness average value and the measured thickness, wherein the second compensation coefficient is used for representing rolling thickness deviation among the rolling units;
and correspondingly determining the thickness correction coefficient of each rolling unit based on the first compensation coefficient and the second compensation coefficient, wherein the thickness correction coefficient is used for correcting the rolling thickness of each rolling unit.
2. The method as claimed in claim 1, wherein the preparing of the correction template for the grade steel coil to be corrected comprises:
sampling is carried out at a position 30m away from the tail of the brand steel coil to be corrected, and a correction sample plate of 100mm x 100mm is cut in the middle of the width of the steel coil.
3. The method of claim 1, wherein determining the mean thickness of the modified template comprises:
detecting the thickness of at least one position of the correction sample plate by using a thin plate thickness gauge;
and calculating the mean thickness of the correction sample plate according to the thickness of each position.
4. The method of claim 3, wherein said detecting the thickness of said correction template at least one location using a sheet thickness gauge comprises:
and respectively detecting the positions 10mm away from 4 vertexes and the thickness of the middle points of the four sides on the correction sample plate by using a thin plate thickness measuring instrument.
5. The method of claim 1, wherein determining a first compensation factor for each thickness gauge based on the mean of the measured thickness and the template thickness comprises:
calculating a first compensation coefficient of each thickness gauge according to the following formula:
β i ＝(h 0avg -H ki) /H ki
wherein, beta i A first compensation coefficient h of a thickness gauge corresponding to the ith rolling mill train 0avg Is the mean thickness of the sample plate, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
6. The method according to claim 1, wherein said obtaining the overall average thickness of the coils of each rolling train comprises:
and obtaining the thickness curve data of the steel coils of each rolling unit in the next procedure by using the same thickness gauge, and calculating the overall thickness average value of the steel coils of each rolling unit according to the thickness curve data.
7. The method according to claim 1, characterized in that said corresponding determination of the second compensation factor for each rolling train, based on said overall thickness mean and said measured thickness, comprises:
determining a thickness reference value according to the overall thickness average value and the rolling target thickness;
calculating the thickness deviation value of each overall thickness mean value and the thickness reference value;
and correspondingly determining a second compensation coefficient of each rolling unit according to the thickness deviation value and the measured thickness.
8. The method of claim 7, wherein determining a thickness reference value based on the overall thickness mean and a rolling target thickness comprises:
and selecting the integral thickness average value with the minimum deviation from the rolling target thickness as a thickness reference value.
9. The method according to claim 7, wherein determining a second compensation factor for each rolling train in correspondence with said thickness deviation value and said measured thickness comprises:
calculating a second compensation coefficient of each rolling unit according to the following formula:
σ i ＝δh ai /H ki
wherein σ i For a second compensation factor, δ h, of the i-th rolling train ai Thickness deviation value of i-th rolling mill set, H ki And measuring the thickness of the thickness gauge corresponding to the ith rolling unit.
10. The method according to claim 1, wherein said corresponding determination of the thickness correction factor for each rolling train based on said first compensation factor and said second compensation factor comprises:
calculating the thickness correction coefficient of each rolling unit according to the following formula:
γ i ＝β i -σ i
wherein, beta i First compensation coefficient, sigma, of thickness gauge corresponding to ith rolling mill train i And the second compensation coefficient is the second compensation coefficient of the ith group of rolling units.
CN202210693608.1A 2022-06-18 2022-06-18 Correction method for thickness deviation between steel coil rolls Pending CN115041528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210693608.1A CN115041528A (en) 2022-06-18 2022-06-18 Correction method for thickness deviation between steel coil rolls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210693608.1A CN115041528A (en) 2022-06-18 2022-06-18 Correction method for thickness deviation between steel coil rolls

Publications (1)

Publication Number Publication Date
CN115041528A true CN115041528A (en) 2022-09-13

Family

ID=83163921

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210693608.1A Pending CN115041528A (en) 2022-06-18 2022-06-18 Correction method for thickness deviation between steel coil rolls

Country Status (1)

Country Link
CN (1) CN115041528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116026263A (en) * 2023-03-30 2023-04-28 杭州百子尖科技股份有限公司 Thickness measurement calibration method, device, equipment and storage medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116026263A (en) * 2023-03-30 2023-04-28 杭州百子尖科技股份有限公司 Thickness measurement calibration method, device, equipment and storage medium

Similar Documents

Publication Publication Date Title
JP4452323B2 (en) Learning method of rolling load prediction in hot strip rolling.
KR20140077193A (en) Feedforward thickness control method for performance of cold rolling mill
CN115041528A (en) Correction method for thickness deviation between steel coil rolls
CN103506404A (en) Method for controlling roll gap during finish rolling of strip steel
CN115127486A (en) Calibration method and device for alloy compensation coefficient of X-ray thickness gauge and storage medium
CN109513750B (en) Convexity feedback method considering waveform adjustment among racks
CN113878100A (en) Long steel billet cutting method
JPS649086B2 (en)
JP4213433B2 (en) Edge drop control device for rolling mill
JP4813014B2 (en) Shape control method for cold tandem rolling mill
JP3069001B2 (en) Feedback control method of sheet crown / shape model
JPS6224809A (en) Method for controlling sheet width in hot rolling
JP3433567B2 (en) Rolling method of taper plate
US3348393A (en) Rolling
JP2002028708A (en) Method of manufacturing for steel sheet and thick plate and device for manufacturing thick plate
JP2005177818A (en) Shape control method for cold rolling
JPH08197119A (en) Control method for plate thickness by hot continuous rolling mill
KR100508510B1 (en) Method for controlling thickness of tandem cold mill
JP2005319492A (en) Method for controlling shape in cold rolling
JP2000158029A (en) Cluster rolling mill and method for controlling sheet shape by using it
KR101253815B1 (en) Method for Compensating Roll Gap of Mill
JPH08197118A (en) Control method for plate thickness by hot continuous rolling mill
JPS6150687B2 (en)
JPS6129805B2 (en)
JPS6076212A (en) Method for learning control of sheet crown in sheet rolling

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination