CN104324950A - Steel rolling system and steel rolling method - Google Patents
Steel rolling system and steel rolling method Download PDFInfo
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- CN104324950A CN104324950A CN201410419437.9A CN201410419437A CN104324950A CN 104324950 A CN104324950 A CN 104324950A CN 201410419437 A CN201410419437 A CN 201410419437A CN 104324950 A CN104324950 A CN 104324950A
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- elongation
- rolling
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- speed
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- 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
- B21B37/56—Elongation 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
- B21B37/58—Roll-force control; Roll-gap control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a steel rolling technology and aims at solving the problems of uneven strip steel performance and too much surface residues after leveling of strip steel caused by rolling pressure change due to elongation fluctuation in the speed increase or decrease process of a leveling unit. The invention provides a steel rolling system which comprises a human-computer interface communication module, a main drive system speed detector, a control module and a rolling force system, wherein the human-computer interface communication module is used for carrying out data input and transmission; the main drive system speed detector is used for detecting the speed of the unit; the control module is used for giving an initial rolling pressure of the strip steel by combining the basic rolling pressure of input data input by the human-computer interface communication module with the compensation rolling pressure calculated according to the elongation, setting the lowest speed according to the unit speed and unit elongation input detected by the main drive system speed detector, then carrying out comparison and finally determining the final control rolling pressure, wherein the input data include texture, specification and elongation of the strip steel; the rolling force system is used for realizing elongation control according to a rolling pressure control execution mechanism of the control module. The steel rolling system is applicable to the field of steel rolling.
Description
Technical field
The present invention relates to steel rolling technology, particularly the rolling process of cold rolling levelling unit band steel.
Background technology
At present, domestic metallurgy industry cold rolling coil, when skin pass mill group Rolling production, all adopts percentage elongation to control the performance of smooth rear band steel, and percentage elongation is controlled by constant-tension and change draught pressure, detected by encoder or laser velocimeter, because the acceleration of skin pass mill group is generally 0.6-0.8m/s
2, unit is for reaching setting percentage elongation in boosting velocity procedure, and draught pressure can increase gradually, causes the plate shape in this stage to adjust, unstable properties.Owing to there is metrical error in high speed down speeding procedure in unit, draught pressure can sharply decline, cause smooth lubrication, cooling agent in a large number with the surface quality of roll gap influence zone steel, strip property unstability increases simultaneously.Both of these case the lighter causes product to be come down to a lower group, and severe one directly causes product to cut useless or user because of performance inconsistency and to claim compensation requirement.
Summary of the invention
The object of the invention is to solve skin pass mill group percentage elongation fluctuation thus influence of rolled pressure in raising speed, down speeding procedure and change the strip property inequality that causes and belt steel flating rear surface remains the problem of too much defect.
For achieving the above object, the invention provides a kind of rolling system, comprising:
Man-machine interface communication module, for carrying out data input and transmission;
Main transmission speed detector, for detecting unit speed;
Control module, combine according to the basic draught pressure of the band steel corresponding to input data of man-machine interface communication module input and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into set after minimum speed compares and determine final controlled rolling pressure, described input data comprise the material of band steel, specification and percentage elongation;
Roll-force system, controls executing agency according to the draught pressure of control module and realizes elongation control;
Described control module is connected with man-machine interface communication module, roll-force system and main transmission speed detector respectively.
Particularly, described control module comprises:
Condition handover module, the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set the result that minimum speed compares and select to be rolled Stress control or elongation control;
Elongation control system, for carrying out the adjustment of percentage elongation;
Average tube rolling simulation unit, for calculating the draught pressure of band steel in specific elongation steadily situation;
Described condition handover module is connected with elongation control system and average tube rolling simulation unit respectively, and described roll-force system is connected with elongation control system and average tube rolling simulation unit respectively.
Particularly, when main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.
Particularly, elongation control system realizes elongation control by encoder or laser velocimeter system controlled rolling pressure system by executing agency.
Correspondingly, the steel rolling method that a kind of rolling system of the present invention is corresponding, comprises the steps: that A. man-machine interface receives the input data of the band steel of input and is transferred to controller;
B. controller combines according to the basic draught pressure of described band steel and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set minimum speed and compare and to adjust draught pressure afterwards;
C. roll-force system controls according to the percentage elongation of order control executing agency to described band steel of controller.
The input data of described band steel comprise material, specification and the percentage elongation of being with steel.In step B, the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set minimum speed and compare and to be specially the method that draught pressure adjusts afterwards: when main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.Carry out elongation control and realize elongation control realization by encoder or laser velocimeter system controlled rolling pressure system by executing agency.
The invention has the beneficial effects as follows: effectively prevent skin pass mill group in raising speed, down speeding procedure percentage elongation fluctuation thus influence of rolled pressure change cause strip property inequality and belt steel flating rear surface remain too much defect.
Accompanying drawing explanation
Fig. 1 is the theory diagram of a kind of rolling system of embodiment.
Detailed description of the invention
Make a step below in conjunction with drawings and Examples to technical scheme of the present invention to describe.
The present invention is directed to skin pass mill group derivative rate influence of fluctuations draught pressure change in raising speed and down speeding procedure in the rolling process of existing cold rolling levelling unit band steel and cause the problem that strip property is uneven and remained on surface is too much, propose a kind of new steel rolling method, and devise a set of new rolling system for the method.
The concrete treatment step of steel rolling method provided by the invention is: first, and man-machine interface receives the input data of the band steel of input and is transferred to controller, and the input data of band steel comprise the material of band steel, specification and percentage elongation, then, controller combines according to the basic draught pressure of band steel and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set minimum speed and compare and to adjust draught pressure afterwards, the concrete grammar of adjustment is: when main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.Finally, roll-force system controls the percentage elongation of executing agency to band steel according to the order of controller and controls, and carries out elongation control and realizes elongation control realization by encoder or laser velocimeter system controlled rolling pressure system by executing agency.
Based on said method, rolling system of the present invention comprises:
Man-machine interface communication module, for carrying out data input and transmission;
Main transmission speed detector, for detecting unit speed;
Control module, combine according to the basic draught pressure of input data of man-machine interface communication module input and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into set after minimum speed compares and determine final controlled rolling pressure, input data comprise the material of band steel, specification and percentage elongation;
Roll-force system, controls executing agency according to the draught pressure of control module and realizes elongation control;
Control module is connected with man-machine interface communication module, roll-force system and main transmission speed detector respectively.
Control module comprises:
Condition handover module, the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set the result that minimum speed compares and select to be rolled Stress control or elongation control;
Elongation control system, for carrying out the adjustment of percentage elongation;
Average tube rolling simulation unit, for calculating the draught pressure of band steel in specific elongation steadily situation;
Condition handover module is connected with elongation control system and average tube rolling simulation unit respectively, and roll-force system is connected with elongation control system and average tube rolling simulation unit respectively.
When main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.
Embodiment
As shown in Figure 1, rolling system comprises man-machine interface communication module, main transmission speed detector, control module and roll-force system.Draught pressure is had to control and elongation control condition handover module and average roll pressure computing unit in PLC, switching condition and steel rolling speed is introduced in condition handover module, this steel rolling velocity conditions is the more stable minimum steel rolling speed of percentage elongation, by main transmission speed detector, operating personnel detect after will be with steel matter, specification, the activation of setting percentage elongation input HMI man-machine interface communication module, PLC combines according to the basic draught pressure of this material and specification and percentage elongation calculation compensation draught pressure, provides the initial stage draught pressure of band steel.Condition handover module selects rolling model, is permanent draught pressure under this condition, and by command routing to roll-force system, roll-force system controls executing agency again and starts unit production, and main transmission speed detector detects unit speed.
When main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, and by command routing to elongation control system, encoder or laser velocimeter system controlled rolling pressure system realize elongation control by executing agency.
When main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls, and this draught pressure is given by the average roll pressure computing unit of the band steel in PLC in specific elongation steadily situation.
This steel rolling method effectively prevent skin pass mill group in raising speed, down speeding procedure percentage elongation fluctuation thus influence of rolled pressure change cause strip property inequality and belt steel flating rear surface remain too much defect.
Claims (8)
1. a rolling system, is characterized in that, comprising:
Man-machine interface communication module, for carrying out data input and transmission;
Main transmission speed detector, for detecting unit speed;
Control module, combine according to the basic draught pressure of the band steel corresponding to input data of man-machine interface communication module input and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into set after minimum speed compares and determine final controlled rolling pressure, described input data comprise the material of band steel, specification and percentage elongation;
Roll-force system, controls executing agency according to the draught pressure of control module and realizes elongation control;
Described control module is connected with man-machine interface communication module, roll-force system and main transmission speed detector respectively.
2. a kind of rolling system as claimed in claim 1, is characterized in that, described control module comprises:
Condition handover module, the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set the result that minimum speed compares and select to be rolled Stress control or elongation control;
Elongation control system, for carrying out the adjustment of percentage elongation;
Average tube rolling simulation unit, for calculating the draught pressure of band steel in specific elongation steadily situation;
Described condition handover module is connected with elongation control system and average tube rolling simulation unit respectively, and described roll-force system is connected with elongation control system and average tube rolling simulation unit respectively.
3. a kind of rolling system as claimed in claim 2, it is characterized in that, when main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.
4. a kind of rolling system as claimed in claim 2 or claim 3, is characterized in that, elongation control system realizes elongation control by encoder or laser velocimeter system controlled rolling pressure system by executing agency.
5. a steel rolling method, is characterized in that, comprises the steps:
A. man-machine interface receives the input data of the band steel of input and is transferred to controller;
B. controller combines according to the basic draught pressure of described band steel and percentage elongation calculation compensation draught pressure, provide the initial stage draught pressure of band steel, and the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set minimum speed and compare and to adjust draught pressure afterwards;
C. roll-force system controls according to the percentage elongation of order control executing agency to described band steel of controller.
6. a kind of steel rolling method as claimed in claim 5, is characterized in that, in steps A, the input data of described band steel comprise the material of band steel, specification and percentage elongation.
7. a kind of steel rolling method as claimed in claim 5, it is characterized in that, in step B, the unit speed detected according to main transmission speed detector and unit percentage elongation drop into and set minimum speed and compare and to be specially the method that draught pressure adjusts afterwards: when main transmission speed detector detects that unit speed reaches the minimum steel rolling speed of setting that percentage elongation drops into, condition handover module gating elongation control, when main transmission speed detector detects that unit speed drops into setting minimum speed lower than unit percentage elongation again, condition handover module cancels elongation control and gating draught pressure controls.
8. a kind of steel rolling method as claimed in claim 7, is characterized in that, in step C, carries out elongation control and realizes elongation control realization by encoder or laser velocimeter system controlled rolling pressure system by executing agency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410419437.9A CN104324950B (en) | 2014-08-22 | 2014-08-22 | A kind of rolling system and its method |
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| CN201410419437.9A CN104324950B (en) | 2014-08-22 | 2014-08-22 | A kind of rolling system and its method |
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| CN104324950B CN104324950B (en) | 2017-11-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251780A (en) * | 2015-11-11 | 2016-01-20 | 首钢总公司 | Control method for ductility fluctuation of temper mill |
| CN107695109A (en) * | 2017-09-15 | 2018-02-16 | 攀钢集团攀枝花钢钒有限公司 | Skin pass mill group milling method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841611A (en) * | 1986-07-14 | 1989-06-27 | Kawasaki Steel Corporation | Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling |
| JP2004058154A (en) * | 2002-06-07 | 2004-02-26 | Nippon Steel Corp | Method and device for hot-rolling steel plate |
| CN1923391A (en) * | 2005-08-30 | 2007-03-07 | 宝山钢铁股份有限公司 | Integrate optimized controlling means for planisher elongation roll-force, tension, and roll-bending force |
| CN101168172A (en) * | 2006-10-23 | 2008-04-30 | 宝山钢铁股份有限公司 | Tension control system and method for planetary gear structure tension roller type evener |
| CN101181723A (en) * | 2007-12-20 | 2008-05-21 | 攀枝花新钢钒股份有限公司 | Elongation controlling means for burnishing machine |
| CN102407240A (en) * | 2010-09-26 | 2012-04-11 | 鞍钢股份有限公司 | Method for controlling finishing elongation rate of strip steel by utilizing second flow |
| CN102553923A (en) * | 2011-12-31 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Control method for self-adaption compensation of elongation of planisher |
| CN102873106A (en) * | 2012-09-29 | 2013-01-16 | 鞍钢股份有限公司 | Quick and precise elongation control method for temper mill |
-
2014
- 2014-08-22 CN CN201410419437.9A patent/CN104324950B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841611A (en) * | 1986-07-14 | 1989-06-27 | Kawasaki Steel Corporation | Work roll with dulled surface having geometrically patterned uneven dulled sections for temper rolling |
| JP2004058154A (en) * | 2002-06-07 | 2004-02-26 | Nippon Steel Corp | Method and device for hot-rolling steel plate |
| CN1923391A (en) * | 2005-08-30 | 2007-03-07 | 宝山钢铁股份有限公司 | Integrate optimized controlling means for planisher elongation roll-force, tension, and roll-bending force |
| CN101168172A (en) * | 2006-10-23 | 2008-04-30 | 宝山钢铁股份有限公司 | Tension control system and method for planetary gear structure tension roller type evener |
| CN101181723A (en) * | 2007-12-20 | 2008-05-21 | 攀枝花新钢钒股份有限公司 | Elongation controlling means for burnishing machine |
| CN102407240A (en) * | 2010-09-26 | 2012-04-11 | 鞍钢股份有限公司 | Method for controlling finishing elongation rate of strip steel by utilizing second flow |
| CN102553923A (en) * | 2011-12-31 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Control method for self-adaption compensation of elongation of planisher |
| CN102873106A (en) * | 2012-09-29 | 2013-01-16 | 鞍钢股份有限公司 | Quick and precise elongation control method for temper mill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251780A (en) * | 2015-11-11 | 2016-01-20 | 首钢总公司 | Control method for ductility fluctuation of temper mill |
| CN107695109A (en) * | 2017-09-15 | 2018-02-16 | 攀钢集团攀枝花钢钒有限公司 | Skin pass mill group milling method |
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| CN104324950B (en) | 2017-11-17 |
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