CN109772894A - A kind of strip width control method of hot rolling wedge shape base - Google Patents
A kind of strip width control method of hot rolling wedge shape base Download PDFInfo
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Abstract
The present invention relates to a kind of strip width control methods of hot rolling wedge shape base, first according to major part supplied materials width, complete roughing target, sharing of load；According to each passage exit width target that major part determines, each passage width pressure of microcephaly is determined；Slab concentric reducer control pressure controls live line controlling curve, the final rectangle control for realizing that slab is final using long stroke.Control method control precision of the invention greatly improves, and solves the problems, such as that the overall control precision of the width of plate slab of existing control method is not high enough.
Description
Technical field
The present invention relates to Steel Rolling Control technical field more particularly to hot rolling steel rolling, and in particular to a kind of hot rolling wedge shape base
Strip width control method.
Background technique
Baosteel continuous casting can generate wedge shape during continuous casting tune is wide in order to improve the production efficiency, using on-line width adjustment technology
Slab.
Application number 201210211053.9 discloses a kind of hot rolling width control method of wedge-shaped slab, mainly for difference
The slab of wedge-shaped degree carries out classification control, and the right of opinion is mainly reflected on different control strategies, such as by wedge-shaped journey
Degree is divided into 3 grades (being less than 20mm, 20mm to 40mm, 40mm or more), and different short stroke controls is selected for different wedge-shaped degree
System strategy and long stroke control strategy.
Application number 201210211043.5 discloses a kind of warm-rolling stainless steel wedge shape slab width control method,
Essentially describe the method for measuring width of wedge-shaped slab, the installation site and slab head of width gage, in, the definition of tail width and
Measurement points, practical control are controlled according to the relatively narrow one end in both ends end to end.
Publication number CN100488651C (Method of setting/controlling wedge in plate
Material rolling), it is that measuring device is installed on milling train, the wedge shape of detection slab in the direction of the width passes through measurement
Value is calculated, and the roll gap of horizontal roller two sides is adjusted, to eliminate the control method of the wedge shape on width of plate slab direction.
Publication number CN101934292B (Automatic control method for camber and wedge of
Hot rolled strip roughing mill), and to the control method of width of plate slab direction wedge shape, except that adopting
It is with the mode of hard measurement, i.e., counter to push away different rollings by calculating the deviation of milling train two sides roll-force and practical two sides roll-force
Power, different spring, cause milling train two sides roll gap inconsistent, to cause width of plate slab direction wedge-shaped.
Publication number CN106140825A (A method for controlling recoiling of side guide
Preventing hot continuous rolling strip steel generate wedge) it is by controlling flipper guide
Aperture, prevent on strip length direction wedge shape control method.
The overall control precision of above-mentioned control method is not high enough.
Summary of the invention
The object of the present invention is to provide a kind of strip width control methods of hot rolling wedge shape base, to solve existing controlling party
The not high enough problem of the overall control precision of the width of plate slab of method.
To achieve the above object, the scheme of the invention is: a kind of strip width control method of hot rolling wedge shape base, it is described
Specific step is as follows for width control method:
(1) according to the big head width of wedge base, the setting of roughing target width, horizontal roller sharing of load is completed；
(2) the SP large lateral pressure drafts of wedge shape base supplied materials major part when determining roughing, each on the basis of wedge-shaped base supplied materials major part
The export goal width of passage edger roll drafts and each forward direction passage of horizontal roller；
(3) according to wedge-shaped base microcephaly throat width, the SP large lateral pressure drafts of wedge shape base microcephaly when calculating roughing；
(4) according to step (2) and step (3), nonlinear equation is established, acquires the first reduction in pass of edger roll of microcephaly；
It (5) is wedge-shaped base microcephaly's target width value with the export goal width of each forward direction passage of wedge-shaped base major part horizontal roller,
The edger roll drafts of each passage wedge shape base microcephaly of calculated for subsequent；
(6) on the basis of the setting roll gap of wedge-shaped base major part, wedge-shaped base microcephaly drafts is converted into setting pressure roll gap；
(7) determine that the wedge-shaped large and small head of base into steel sequence, wedge-shaped base size, head vertical rolls is seamed and are converted to band to be rolled surely
Steel toe, tail portion vertical rolls seam fixed；
(8) it is fixed to be seamed according to band steel toe to be rolled, tail portion vertical rolls, using long stroke method to strip middle transition section to be rolled
Interpolation processing is carried out, the setting width controlling curve of strip to be rolled is obtained；
(9) according to the setting width controlling curve, the roll gap aperture of edger roll is controlled, carries out the presetting rolling of roughing；
(10) it is exported in roughing, strip width actual value is measured, is fed back, until strip width actual value and setting
The deviation of value is met the requirements, and roughing terminates.
Further, the strip width control method of hot rolling wedge shape base according to the present invention, in the step (2),
The calculation method of each passage edger roll drafts of wedge base major part are as follows: the edger roll drafts for enabling major part is variable x, constructs non-linear side
Journey are as follows:
F (x)=- x+W0-Big(i)+dWSpread-Big(i)+dWDog-Big(i)-WTarget(i)
Edger roll drafts is acquired by newton Chord iterative method；
In formula, WTargetIt (i) is the export goal width of the i-th passage of rolling process of rough rolling horizontal roller (forward direction passage)；
dWSpread-Big(i) it is spreaded for the level of each passage major part；dWDog-Big(i) the edger roll dog bone for each major part everywhere spreads；W0_Big
It (i) is the edger roll throat width of each major part everywhere.
Further, the strip width control method of hot rolling wedge shape base according to the present invention, in the step (2),
The calculation method of wedge-shaped base major part SP large lateral pressure drafts are as follows: the SP large lateral pressure drafts for enabling major part is required variable x, is established non-
Linear equation are as follows:
F (x)=- x+W0-Big-dWEdger-Big+dWSpread-Big+dWDog-Big+dWSPDog-Big-WTarget
The SP large lateral pressure drafts of major part is acquired by newton Chord iterative method；
In formula, dWEdger-BigFor the edger roll lateral pressure amount of major part, dWSPDog-BigIt is spreaded for the SP large lateral pressure dog bone of major part
Further, the strip width control method of hot rolling wedge shape base according to the present invention, in the step (3),
The SP large lateral pressure drafts of wedge-shaped base microcephaly are as follows:
dWSP-Small=W0_Small-(W0_Big-dWSP-Big), if dWSP-Small≤0,dWSP-Small=0
In formula, dWSP-SmallFor microcephaly's SP large lateral pressure drafts；W0_SmallFor microcephaly's throat width；dWSP-BigFor major part SP
Large lateral pressure drafts.
Further, the strip width control method of hot rolling wedge shape base according to the present invention, the step (4)
In, the first passage edger roll drafts calculation method of wedge-shaped base microcephaly are as follows: the first passage edger roll drafts for enabling microcephaly is variable
X constructs nonlinear equation are as follows:
F (x)=- x+W0-Small-dWSP-Small+dWSpread-Small+dWDog-Small+dWSPDog-Small-WTarget(1)
The first passage edger roll drafts of microcephaly is acquired by newton Chord iterative method；
In formula, dWSpread-SmallIt is spreaded for the level of microcephaly；dWDog-SmallIt is spreaded for the edger roll dog bone of microcephaly；
dWSPDog-SmallIt is spreaded for the SP large lateral pressure dog bone of microcephaly；WTarget(1) wide for R1 horizontal roller the first passage export goal of major part
Degree.
Further, the strip width control method of hot rolling wedge shape base according to the present invention, in the step (5),
The edger roll drafts calculation method of subsequent each passage wedge shape base microcephaly are as follows: enable the edger roll drafts of subsequent each passage wedge shape base microcephaly
For variable x, then it is as follows to construct nonlinear equation:
F (x)=- x+W0-Small(i)+dWSpread-Small(i)+dWDog-Small(i)-WTarget(i)
The edger roll drafts of each passage of microcephaly is acquired by newton Chord iterative method.
It is that the present invention reaches the utility model has the advantages that control method of the invention substantially increase wedge-shaped slab width control essence
Degree, wedge-shaped base width control qualification rate reach 95% or more.
Detailed description of the invention
Fig. 1 is hot rolling width control system schematic diagram；
Fig. 2 is roughing width control flow chart of the invention；
Fig. 3 is the 1st passage head controlling curve of E1 edger roll；
Fig. 4 is the 1st passage End-Management curve of E1 edger roll；
Fig. 5 is the 2nd passage head controlling curve of E1 edger roll；
Fig. 6 is the 2nd passage End-Management curve of E1 edger roll；
Fig. 7 is the 1st passage head controlling curve of E2 edger roll；
Fig. 8 is the 1st passage End-Management curve of E2 edger roll；
Fig. 9 is the 2nd passage head controlling curve of E2 edger roll；
Figure 10 is the 2nd passage End-Management curve of E2 edger roll.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawing.
The invention proposes a kind of hot rolling wedge shape base (T-type base) width control technology, for wedge-shaped slab, there is major part and small
Point of head, the present invention according to major part supplied materials width, complete roughing target, sharing of load first；The each road determined according to major part
Secondary export goal width determines each passage width pressure of microcephaly；Slab concentric reducer control pressure is using long stroke control scene
Line controlling curve, the final rectangle control for realizing that slab is final.The technology has been applied to 1580 hot rolling producing line of Baosteel, obtains
Good application effect, as shown in Fig. 2, specific control process is as follows:
1, roughing target width and horizontal roller load setting calculate
The width control target of hot rolling refers generally to finish rolling width, but the main operation of rolling of width is completed in roughing.Strip
In the finish rolling operation of rolling, width can be spreaded and drawing down phenomenon.Therefore, roughing rolling setting first has to wide in finish rolling target
On the basis of degree, roughing export goal width is determined.Roughing outlet target width consider different steel grades, specification width more than
Amount, the global hereditary equivalent of finish rolling natural width predicted value, made Target width correction amount, width.
Roughing horizontal roller load setting is calculated as general-purpose computations, is basically completed before edger roll setting.
2, it on the basis of wedge-shaped base major part, determines SP large lateral pressure and edger roll sharing of load, determines the big side the SP of roughing major part
Press drafts dWSP-Big, each passage edger roll drafts dWEdger-Big(i) to the export goal width of passage and before each horizontal roller
WTarget(i)。
The edger roll sharing of load of roughing major part calculates, SP large lateral pressure pressure identical as the edger roll sharing of load calculating of conventional plate blank
Lower amount calculates as follows:
If the SP large lateral pressure drafts dW of major partSP-BigFor required variable x, it is as follows to establish nonlinear equation:
F (x)=- x+W0-Big-dWEdger-Big+dWSpread-Big+dWDog-Big+dWSPDog-Big-WTarget
The SP large lateral pressure drafts dW of major part is acquired by newton Chord iterative methodSP-Big。
In formula, W0_BigFor the edger roll throat width of major part, dWEdger-BigFor the edger roll lateral pressure amount of major part, dWSpread-BigFor
The level of major part is spreaded；dWDog-BigIt is spreaded for the edger roll dog bone of major part；dWSPDog-BigIt is spreaded for the SP large lateral pressure dog bone of major part；
WTargetFor the 1st passage horizontal roller dW of roughingSP-Small=W0_Small-(W0_Big-dWSP-Big) export goal width.
3, according to strip microcephaly's throat width W0_Small, calculate the SP large lateral pressure drafts dW of microcephalySP-Small；
, if dWSP-Small≤0,dWSP-Small=0
In formula, dWSP-SmallFor microcephaly's SP large lateral pressure drafts；W0_SmallFor microcephaly's throat width；W0_BigFor major part entrance
Width；dWSP-BigFor major part SP large lateral pressure drafts.
4, according to the R1 export goal width that microcephaly's throat width, SP drafts, major part sharing of load determine, establish non-thread
Property equation, the first reduction in pass of edger roll dW of microcephaly is acquired by newton Chord iterative methodEdger-Small(1) the first of microcephaly is enabled
Passage edger roll drafts is variable x, constructs nonlinear equation are as follows:
F (x)=- x+W0-Small-dWSP-Small+dWSpread-Small+dWDog-Small+dWSPDog-Small-WTarget(1)
The first passage edger roll drafts x of microcephaly is acquired by newton Chord iterative method.
In formula, dWSpread-SmallIt is spreaded for the level of microcephaly；dWDog-SmallIt is spreaded for the edger roll dog bone of microcephaly；
dWSPDog-SmallIt is spreaded for the SP large lateral pressure dog bone of microcephaly；WTarget(1) wide for R1 horizontal roller the first passage export goal of major part
Degree.
5, with before each horizontal roller of major part to passage export goal width be microcephaly's target width value, calculated for subsequent edger roll passage
The each passage of microcephaly drafts.
Enable the edger roll drafts dW of each passage of microcephalyEdger-Small(i)=x constructs nonlinear equation:
F (x)=- x+W0-Small(i)+dWSpread-Small(i)+dWDog-Small(i)-WTarget(i)
The edger roll drafts of the subsequent edger roll passage of microcephaly is acquired by newton Chord iterative method.
6, on the basis of the setting roll gap of wedge-shaped base major part, wedge-shaped base microcephaly drafts is converted into setting pressure roll gap.
7, determine that the wedge-shaped large and small head of base into steel sequence, wedge-shaped base size, head vertical rolls is seamed and are converted to strip to be rolled surely
Head, tail portion vertical rolls seam fixed；
8, it is fixed to be seamed according to band steel toe to be rolled, tail portion vertical rolls, using long stroke method to strip middle transition section to be rolled
Interpolation processing is carried out, the setting width controlling curve of strip to be rolled is obtained, as shown in Fig. 3 to Figure 10.
9, according to the setting width controlling curve, the roll gap aperture of edger roll is controlled, carries out the presetting rolling of roughing；
10, it is exported in roughing, strip width actual value is measured, is fed back, until strip width actual value and setting
The deviation of value is met the requirements, and roughing terminates.
Embodiment
Actual production strip (all data units are " millimeter "):
Inlet head width: 1171.072
Entrance tail width: 1242.9044
Wedge-shaped initial position: 1200.0
Wedge-shaped end position: 10630.0
Slab length: 10760.0
Supplied materials thickness: 222.0
(1) roughing target width and horizontal horizontal roller load setting calculate:
Roughing target width: 1092.1355
R1 horizontal roller drafts: 20.295826,36.111572,30.270874
R2 horizontal roller drafts: 34.849052,33.158211,25.261719
(2) on the basis of wedge-shaped base major part, SP large lateral pressure and edger roll sharing of load are determined, determines each passage of roughing major part
Drafts
Large lateral pressure target: 1062.896
Large lateral pressure dog bone: 23.430
Large lateral pressure drafts: 210.74303
R1 horizontal roller inlet thickness: 242.91177
To exit width target before R1 horizontal roller: 1087.1355,1088.5789
To exit width target before R2 horizontal roller: 1084.1759,1092.1356
E1 edger roll drafts: 2.000000,26.67223
E2 edger roll drafts: 30.095285,17.925224
(3) SP large lateral pressure drafts is calculated according to strip microcephaly's throat width:
38.91063
(4) edger roll drafts is calculated according to microcephaly's throat width etc.
E1 edger roll drafts: 0.0
Microcephaly's inlet thickness: 236.93884
(5) by R1 export after on the basis of the strip size head width that rolls, then the microcephaly of calculated for subsequent edger roll passage is each
Passage sharing of load.
R1:1058.1255,1088.5787
R2:1084.5536,1092.1355
E1:0.0,0.0
E2:0.0,7.7826347
It will be with steel toe, the setting conversion long stroke control of tail edger roll, after carrying out interpolation processing for slab middle transition section
Long stroke sets curve such as Fig. 3~Figure 10, and wherein nose curve abscissa " 0 " point is head；Tail portion abscissa " 0 " point is
First point of intermediate long stroke.Each figure ordinate indicates the opposite roll gap variable quantity of opposite major part depressing position.Control of the invention
Method processed substantially increases the width control precision of wedge-shaped slab, and wedge-shaped base width control qualification rate reaches 95% or more.
Claims (6)
1. a kind of strip width control method of hot rolling wedge shape base, it is characterised in that: the width control method specific steps
It is as follows:
(1) according to the big head width of wedge base, the setting of roughing target width, horizontal roller sharing of load is completed；
(2) on the basis of wedge-shaped base supplied materials major part, the SP large lateral pressure drafts of wedge shape base supplied materials major part, each passage when determining roughing
The export goal width of edger roll drafts and each forward direction passage of horizontal roller；
(3) according to wedge-shaped base microcephaly throat width, the SP large lateral pressure drafts of wedge shape base microcephaly when calculating roughing；
(4) according to step (2) and step (3), nonlinear equation is established, acquires the first reduction in pass of edger roll of microcephaly；
(5) it is wedge-shaped base microcephaly's target width value with the export goal width of each forward direction passage of wedge-shaped base major part horizontal roller, calculates
The edger roll drafts of subsequent each passage wedge shape base microcephaly；
(6) on the basis of the setting roll gap of wedge-shaped base major part, wedge-shaped base microcephaly drafts is converted into setting pressure roll gap；
(7) determine the wedge-shaped large and small head of base into steel sequence, wedge-shaped base size, head vertical rolls are seamed be converted to surely band steel toe to be rolled,
Tail portion vertical rolls seam fixed；
(8) it is fixed to be seamed according to band steel toe to be rolled, tail portion vertical rolls, is carried out using long stroke method to strip middle transition section to be rolled
Interpolation processing obtains the setting width controlling curve of strip to be rolled；
(9) according to the setting width controlling curve, the roll gap aperture of edger roll is controlled, carries out the presetting rolling of roughing；
(10) it is exported in roughing, strip width actual value is measured, is fed back, until strip width actual value and setting value
Deviation is met the requirements, and roughing terminates.
2. the strip width control method of hot rolling wedge shape base according to claim 1, which is characterized in that the step (2)
In, the calculation method of each passage edger roll drafts of wedge base major part are as follows: the edger roll drafts for enabling major part is variable x, is constructed non-thread
Property equation are as follows:
F (x)=- x+W0-Big(i)+dWSpread-Big(i)+dWDog-Big(i)-WTarget(i)
Edger roll drafts is acquired by newton Chord iterative method；
In formula, WTargetIt (i) is the export goal width of the i-th passage of rolling process of rough rolling horizontal roller (forward direction passage)；dWSpread-Big
(i) it is spreaded for the level of each passage major part；dWDog-Big(i) it is spreaded for the edger roll dog bone of each passage major part；W0_BigIt (i) is each road
The edger roll throat width of secondary major part.
3. the strip width control method of hot rolling wedge shape base according to claim 2, which is characterized in that the step (2)
In, the calculation method of wedge-shaped base major part SP large lateral pressure drafts are as follows: the SP large lateral pressure drafts for enabling major part is required variable x, is built
Vertical nonlinear equation are as follows:
F (x)=- x+W0-Big-dWEdger-Big+dWSpread-Big+dWDog-Big+dWSPDog-Big-WTarget
The SP large lateral pressure drafts of major part is acquired by newton Chord iterative method；
In formula, dWEdger-BigFor the edger roll lateral pressure amount of major part, dWSPDog-BigIt is spreaded for the SP large lateral pressure dog bone of major part.
4. the strip width control method of hot rolling wedge shape base according to claim 3, which is characterized in that the step (3)
In, the SP large lateral pressure drafts of wedge-shaped base microcephaly are as follows:
dWSP-Small=W0_Small-(W0_Big-dWSP-Big), if dWSP-Small≤0,dWSP-Small=0
In formula, dWSP-SmallFor microcephaly's SP large lateral pressure drafts；W0_SmallFor microcephaly's throat width；dWSP-BigFor the big side major part SP
Press drafts.
5. the strip width control method of hot rolling wedge shape base according to claim 4, which is characterized in that the step
(4) in, the first passage edger roll drafts calculation method of wedge-shaped base microcephaly are as follows: enable the first passage edger roll drafts of microcephaly to become
X is measured, nonlinear equation is constructed are as follows:
F (x)=- x+W0-Small-dWSP-Small+dWSpread-Small+dWDog-Small+dWSPDog-Small-WTarget(1)
The first passage edger roll drafts of microcephaly is acquired by newton Chord iterative method；
In formula, dWSpread-SmallIt is spreaded for the level of microcephaly；dWDog-SmallIt is spreaded for the edger roll dog bone of microcephaly；dWSPDog-SmallFor
The SP large lateral pressure dog bone of microcephaly spreads；WTargetIt (1) is R1 horizontal roller the first passage export goal width of major part.
6. the strip width control method of hot rolling wedge shape base according to claim 5, which is characterized in that the step (5)
In, the edger roll drafts calculation method of subsequent each passage wedge shape base microcephaly are as follows: enable the edger roll pressure of subsequent each passage wedge shape base microcephaly
Lower amount is variable x, then it is as follows to construct nonlinear equation:
F (x)=- x+W0-Small(i)+dWSpread-Small(i)+dWDog-Small(i)-WTarget(i)
The edger roll drafts of each passage of microcephaly is acquired by newton Chord iterative method.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756592A (en) * | 2019-09-29 | 2020-02-07 | 武汉钢铁有限公司 | Method and device for controlling tail width of hot-rolled strip steel |
| CN113145656A (en) * | 2021-03-31 | 2021-07-23 | 北京首钢股份有限公司 | Slab shape determining method and device |
| CN114472509A (en) * | 2022-02-08 | 2022-05-13 | 南京钢铁股份有限公司 | Rolling method of wedge-shaped blank |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305304A (en) * | 1991-03-29 | 1992-10-28 | Nisshin Steel Co Ltd | Method for controlling camber in hot rolling mill |
| CN101376139A (en) * | 2007-08-31 | 2009-03-04 | 宝山钢铁股份有限公司 | Control method for producing conical plate blank using side compression machine of fixed width plate blank |
| US20090151413A1 (en) * | 2003-03-20 | 2009-06-18 | Nippon Steel Corporation | Rolling method and rolling apparatus for flat-rolled metal materials |
| CN102716913A (en) * | 2012-06-26 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Width control method for ferrite hot rolling stainless steel wedge-shaped plate blank |
| CN103506403A (en) * | 2012-06-25 | 2014-01-15 | 宝山钢铁股份有限公司 | Control method of hot rolling width of wedge-shaped slab |
| CN104415972A (en) * | 2013-08-30 | 2015-03-18 | 宝山钢铁股份有限公司 | Comprehensive self-adaptive control method of width of rough rolling band steel |
| CN104785534A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Hot rolling width quick correction method based on fine rolling measured data |
| CN107175260A (en) * | 2016-03-11 | 2017-09-19 | 宝山钢铁股份有限公司 | Wedge-shaped base width control method based on fixed-width side press |
-
2017
- 2017-11-14 CN CN201711125018.4A patent/CN109772894B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305304A (en) * | 1991-03-29 | 1992-10-28 | Nisshin Steel Co Ltd | Method for controlling camber in hot rolling mill |
| US20090151413A1 (en) * | 2003-03-20 | 2009-06-18 | Nippon Steel Corporation | Rolling method and rolling apparatus for flat-rolled metal materials |
| CN101376139A (en) * | 2007-08-31 | 2009-03-04 | 宝山钢铁股份有限公司 | Control method for producing conical plate blank using side compression machine of fixed width plate blank |
| CN103506403A (en) * | 2012-06-25 | 2014-01-15 | 宝山钢铁股份有限公司 | Control method of hot rolling width of wedge-shaped slab |
| CN102716913A (en) * | 2012-06-26 | 2012-10-10 | 山西太钢不锈钢股份有限公司 | Width control method for ferrite hot rolling stainless steel wedge-shaped plate blank |
| CN104415972A (en) * | 2013-08-30 | 2015-03-18 | 宝山钢铁股份有限公司 | Comprehensive self-adaptive control method of width of rough rolling band steel |
| CN104785534A (en) * | 2014-01-21 | 2015-07-22 | 宝山钢铁股份有限公司 | Hot rolling width quick correction method based on fine rolling measured data |
| CN107175260A (en) * | 2016-03-11 | 2017-09-19 | 宝山钢铁股份有限公司 | Wedge-shaped base width control method based on fixed-width side press |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756592A (en) * | 2019-09-29 | 2020-02-07 | 武汉钢铁有限公司 | Method and device for controlling tail width of hot-rolled strip steel |
| CN110756592B (en) * | 2019-09-29 | 2021-06-01 | 武汉钢铁有限公司 | Method and device for controlling tail width of hot-rolled strip steel |
| CN113145656A (en) * | 2021-03-31 | 2021-07-23 | 北京首钢股份有限公司 | Slab shape determining method and device |
| CN114472509A (en) * | 2022-02-08 | 2022-05-13 | 南京钢铁股份有限公司 | Rolling method of wedge-shaped blank |
| CN114472509B (en) * | 2022-02-08 | 2024-01-09 | 南京钢铁股份有限公司 | Rolling method of wedge-shaped blank |
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