CN104324939B - A kind of belt steel rolling method - Google Patents
A kind of belt steel rolling method Download PDFInfo
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- CN104324939B CN104324939B CN201410448262.4A CN201410448262A CN104324939B CN 104324939 B CN104324939 B CN 104324939B CN 201410448262 A CN201410448262 A CN 201410448262A CN 104324939 B CN104324939 B CN 104324939B
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- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of belt steel rolling method, it is first determined the parameter of the strip；Then according to the parameter of the strip, the roll-force of each frame in frame group is set；The strip is set to cross the Uplifting amount of each frame roll gap during weld seam again；The Uplifting amount of roll-force and each frame roll gap finally according to each frame, rolls the strip.Therefore, can be by the adjustment of the sharing of load and unit tension of each frame, each frame roll-force target is in a balanced way reached, and total rolling power is obviously reduced, the 87.43% of only original code total consumed power, serve the purpose for reducing energy consumption under conditions of rationally using rolling equipment, increasing economic efficiency, CVC roll shifting amplitudes optimize simultaneously after are also obviously reduced, advantageously reduce the generation for strangling the accidents such as roller, broken belt, on the basis of ensureing that production is stable, the quality of finished strip is improved.
Description
Technical field
The application is related to steel rolling field, more particularly to a kind of belt steel rolling method.
Background technology
Since acid rolls producing line operation, when producing high-strength steel and thin gauge strip, high-strength steel rolling sideslip and broken belt
Situation happens occasionally, not thorough to second-level model parsing, causes site problems not have method solution, for example：High-strength steel rolling speed
Degree is relatively low, depresses unreasonable distribution, and milling train setting tension force is relatively low, and rolling power consumption is larger, and roll shifting distance, deformed steel strip length is long
Etc., these problems eventually result in the strip quality rolled out and are unsatisfactory for customer demand, on the one hand have impact on to high-end user
The stable supply of material, even if on the one hand client can receive, the image of enterprise in itself can also be impacted.In addition, broken belt and race
Rhythm of production can be also influenceed partially, causes to shut down, so as to influence rolling mill yield, and then the profit of company is influenceed.
The content of the invention
Invention provides a kind of belt steel rolling method, with the strip quality for solving to roll out it is poor, yield poorly, enter without
The technical problem met customer need.
In order to solve the above technical problems, the invention provides a kind of belt steel rolling method, applied to belt steel rolling model, institute
The method of stating includes：Determine the parameter of the strip；According to the parameter of the strip, the rolling of each frame in frame group is set
Power；The strip is set to cross the Uplifting amount of each frame roll gap during weld seam；According to the roll-force of each frame and institute
The Uplifting amount of each frame roll gap is stated, the strip is rolled.
It is preferred that, the parameter of the strip is specifically included：Strip width or belt steel thickness.
It is preferred that, the parameter for determining the strip is specially：Judge the strip whether trimming；If the strip
Trimming, regard the strip width after trimming as the strip width.
It is preferred that, the parameter according to the strip sets the roll-force of each frame in frame group, is specially：Root
According to the thickness of the strip, the power distribution of each frame and the unit tension of each frame are set.
By one or more technical scheme of the present invention, the invention has the advantages that or advantage：
The present invention determines the parameter of strip first；Then according to the parameter of strip, each frame rolls in setting frame group
Power processed；Strip is set to cross the Uplifting amount of each frame roll gap during weld seam again；Roll-force and each machine finally according to each frame
The Uplifting amount of frame roll gap, rolled band steel.Therefore, it is possible to by the adjustment of the sharing of load and unit tension of each frame, reach
Each frame roll-force target in a balanced way, and total rolling power is obviously reduced, only original code total consumed power
87.43%, the purpose for reducing energy consumption under conditions of rationally using rolling equipment, increasing economic efficiency is served, is optimized simultaneously
CVC roll shifting amplitudes afterwards are also obviously reduced, and advantageously reduce the generation for strangling the accidents such as roller, broken belt, are ensureing the stable base of production
On plinth, the quality of finished strip is improved.
It can not influenceed in addition, the rolling parameter of the present invention is calculated according to strip developed width by trimming with not trimming,
Fundamentally solve in the case of raw material not trimming, the setting width of milling train causes roll shifting, splash-back using finished width
Width, ASC control, rolling procedure basis of design mistake the problem of, the program of have adjusted enable milling train it is actual control width according to
According to end trimming shears, whether trimming is determined, improves the precision of Strip Shape Control.
Brief description of the drawings
Fig. 1 is a kind of flow chart of belt steel rolling method in the embodiment of the present invention.
Embodiment
In order that the application the technical staff in the technical field is more clearly understood that the application, below in conjunction with the accompanying drawings,
Technical scheme is described in detail by specific embodiment.
Embodiment 1：
In embodiments of the present invention, a kind of belt steel rolling method is disclosed.
This method is applied particularly to belt steel rolling model, and the model is related to two grades of setting tension optimizations of high-strength steel；High-strength steel
Second-level model rolling strategy optimizes；High-strength steel and Thin Specs auto lifting roll gap technology；Roll-force is carried out according to developed width change
Setting.
Fig. 1 is refer to, in specific implementation process, the flow of belt steel rolling method is as follows：
S1, determines the parameter of strip.
Specifically, strip parameter includes a variety of, such as strip width, belt steel thickness, strip length etc..
It is determined that during strip width, determine the parameter of strip, it is specially：Judge strip whether trimming；, will if strip trimming
Strip width after trimming is used as strip width.
During rolling force setup width calculation, not trimming product, automatic program identification raw material width, not trimming feelings are rolled for acid
Under condition, prevent the setting width of milling train from using finished width, so cause roll shifting, splash-back width, ASC controls, rolling procedure
Basis of design mistake width setting, from program improve enable milling train it is actual control width according to end trimming shears whether trimming
Determine, it is to avoid because trimming and not trimming influence calculate accuracy, improve the precision of Strip Shape Control.
S2, according to the parameter of strip, sets the roll-force of each frame in frame group.
In specific implementation process, according to the thickness of strip, the power distribution (i.e. sharing of load) of each frame is set
With the unit tension of each frame.
For example, for finished product thickness h≤1.2mm high strength steel plate band, refer to Tables 1 and 2.
Table 1
| Frame | 1st | 2st | 3st | 4st |
| Sharing of load | 110 | 100 | 100 | 90 |
Table 2
| Frame | entry | 1-2st | 2-3st | 3-4st | 4-5st | exit |
| Unit tension | 110 | 130 | 130 | 130 | 140 | 100 |
For finished product thickness h ＞ 1.2mm high strength steel plate band, table 3 and table 4 refer to.
Table 3
| Frame | 1st | 2st | 3st | 4st |
| Sharing of load | 110 | 100 | 100 | 90 |
Table 4
| Frame | entry | 1-2st | 2-3st | 3-4st | 4-5st | exit |
| Unit tension | 110 | 140 | 140 | 140 | 150 | 100 |
The control of mill milling strategy, under the premise of rolling target thickness and rhythm of production identical is ensured, by each
The adjustment of the sharing of load and unit tension of frame, reaches each frame roll-force target in a balanced way, and total rolling power
It is obviously reduced, the 87.43% of only original code total consumed power, serves and reduce under conditions of rationally using rolling equipment
Energy consumption, the purpose increased economic efficiency, while the CVC roll shifting amplitudes after optimization are also obviously reduced, advantageously reduce Le roller, broken belt
Etc. the generation of accident, on the basis of ensureing that production is stable, the quality of finished strip is improved.Carried out by model above
Research, we are optimized the second-level model to producing line, improve the kind rolling stability such as high-strength steel, reduce broken belt, carry
High Strip Shape Control ability, improves mill speed.
S3, sets strip to cross the Uplifting amount of each frame roll gap during weld seam.
In specific implementation process, in rolled band steel, be likely to appear in rolling high-strength steel is followed by other hardness
Low steel grade is rolled, when high-strength steel connects the low steel grade of other hardness, is increased each frame and is subtracted roll-force function automatically.Example
Such as：During 1# frame FGC, 1# frames from the △ S of present segment-changeover portion it is new=△ S are former+150 μm.During 2# frame FGC, 2# frames from
The △ S of present segment-changeover portion are new=and △ S are former+150 μm.During 3# frame FGC, 3# frames from the △ S of present segment-changeover portion it is new=
△ S are former+100 μm.During 4# frame FGC, 4# frames from the △ S of present segment-changeover portion it is new=△ S are former+100 μm.For another example：When 1# machines
During frame FGC, roll gap increase in the case of being changed into transition numerical value from current value 1# frame roll gap Uplifting amount Δs S, other 2#, 3#,
4# frame function phases are same.The target of the Uplifting amount optimization of each frame roll gap is increase weld seam belt steel thickness nearby, it is to avoid be thinned
Broken belt.
S4, according to the roll-force of each frame and the Uplifting amount of each frame roll gap, rolled band steel.
By one or more embodiment of the present invention, the invention has the advantages that or advantage：
The adjustment of sharing of load and unit tension that the present invention passes through each frame, has reached each frame roll-force in a balanced way
Target, and always rolling power is obviously reduced, the 87.43% of only original code total consumed power, serve reasonable
Using the purpose for reducing energy consumption under conditions of rolling equipment, increasing economic efficiency, while the CVC roll shifting amplitudes after optimization are also obvious
Reduce, advantageously reduce the generation for strangling the accidents such as roller, broken belt, on the basis of ensureing that production is stable, improve finished strip
Quality.
The rolling parameter that the present invention is solved is calculated can be according to strip developed width, not by the shadow of trimming and not trimming
Ring, fundamentally solve in the case of raw material not trimming, the setting width of milling train causes roll shifting, splashproof using finished width
The problem of plate width, ASC controls, rolling procedure basis of design mistake, the program of have adjusted enables milling train is actual to control width
According to end trimming shears, whether trimming is determined, improves the precision of Strip Shape Control.
Although having been described for the preferred embodiment of the application, one of ordinary skilled in the art once knows substantially
Creative concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to bag
Include preferred embodiment and fall into having altered and changing for the application scope.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the application to the application
God and scope.So, if these modifications and variations of the application belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising including these changes and modification.
Claims (3)
1. a kind of belt steel rolling method, applied to belt steel rolling model, it is characterised in that methods described includes：
Determine the parameter of the strip；
According to the thickness of strip, the power distribution of each frame and the unit tension of each frame are set；When the thickness of the strip
Spend h≤1.2mm, the sharing of loads of 1# frames is that the sharing of load of 110%, 2# frames is that the sharing of loads of 100%, 3# frames is
The sharing of load of 100%, 4# frame is 90%；The unit tension of 1# frame -2# frames is 130Mpa, 2# frame -3# frames
Unit tension is 130Mpa, and the unit tension of 3# frame -4# frames is 130Mpa；As thickness h the ＞ 1.2mm, 1# of the strip
The sharing of load of frame is that the sharing of load of 110%, 2# frames is that the sharing of loads of 100%, 3# frames is 100%, 4# frames
Sharing of load be 90%；The unit tension of 1# frame -2# frames is 140Mpa, and the unit tension of 2# frame -3# frames is
The unit tension of 140Mpa, 3# frame -4# frames is 140Mpa；
The strip is set to cross the Uplifting amount of each frame roll gap during weld seam；Wherein, to connect other hardness in high-strength steel low
During steel grade, 1# frames from the △ S of present segment-changeover portion it is new=△ S are former+150 μm, 2# frames are new from the △ S of present segment-changeover portion
Former+150 μm of=△ S, 3# frames from the △ S of present segment-changeover portion it is new=△ S are former+100 μm, 4# frames are from present segment-changeover portion
△ S it is new=△ S are former+100 μm；Wherein, △ S are the variable quantity of roll gap；
According to the roll-force of each frame and the Uplifting amount of each frame roll gap, the strip is rolled.
2. the method as described in claim 1, it is characterised in that the parameter of the strip specifically also includes：Strip width.
3. method as claimed in claim 2, it is characterised in that the parameter of the determination strip, is specially：
Judge the strip whether trimming；
If the strip trimming, regard the strip width after trimming as the strip width.
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| CN201410448262.4A CN104324939B (en) | 2014-09-04 | 2014-09-04 | A kind of belt steel rolling method |
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| CN104324939B true CN104324939B (en) | 2017-10-10 |
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| CN106552826B (en) * | 2015-09-30 | 2019-01-08 | 上海梅山钢铁股份有限公司 | Hot-tandem unit roll shifting control method |
| CN107900101A (en) * | 2017-10-26 | 2018-04-13 | 首钢京唐钢铁联合有限责任公司 | A kind of milling method for reducing tandem mill side and splitting |
| CN110170535B (en) * | 2019-06-11 | 2020-11-20 | 首钢京唐钢铁联合有限责任公司 | Automatic control method for welding seam passing rolling force of galvanizing skin pass mill |
| CN114798753A (en) * | 2022-04-21 | 2022-07-29 | 宝钢湛江钢铁有限公司 | Automatic rolling method for weak-strength welding seam of continuous mill |
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| US6119500A (en) * | 1999-05-20 | 2000-09-19 | Danieli Corporation | Inverse symmetrical variable crown roll and associated method |
| KR100832971B1 (en) * | 2006-12-05 | 2008-05-27 | 주식회사 포스코 | Method for controlling bender power of rolling roll in continuous rolling equipment |
| CN101780480B (en) * | 2009-01-16 | 2012-05-30 | 宝山钢铁股份有限公司 | Thickness control compensation method of strip steel head part when welding line passes through rack |
| CN102825065B (en) * | 2012-09-13 | 2015-03-04 | 莱芜钢铁集团有限公司 | Rolling method for steel plates of wide and thin specifications |
| CN103785694B (en) * | 2013-11-22 | 2016-06-01 | 首钢总公司 | The method of car broken belt is opened in prevention |
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