CN109158429A - A kind of Edge Drop Control method with gloomy base Mir milling train production silicon steel - Google Patents
A kind of Edge Drop Control method with gloomy base Mir milling train production silicon steel Download PDFInfo
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- CN109158429A CN109158429A CN201810861619.XA CN201810861619A CN109158429A CN 109158429 A CN109158429 A CN 109158429A CN 201810861619 A CN201810861619 A CN 201810861619A CN 109158429 A CN109158429 A CN 109158429A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003801 milling Methods 0.000 title claims abstract description 32
- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229910052705 radium Inorganic materials 0.000 claims abstract description 12
- HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 238000011084 recovery Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000011217 control strategy Methods 0.000 abstract description 6
- 238000005097 cold rolling Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
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Abstract
The invention discloses a kind of Edge Drop Control methods with gloomy base Mir milling train production silicon steel, are related to cold rolling technology field, which comprises obtain an intermediate calender rolls roll shape curve function；By certain gloomy base Mir milling train physical device parameter, an intermediate calender rolls initial radium R is determined0, an intermediate calender rolls barrel length L；Obtain index point coordinate x1And x2；Determine roller shape coefficient k1With a, b, c；Determine an intermediate calender rolls roller shape.By providing single one intermediate calender rolls roller shape of taper and roll shifting control strategy, effective control silicon steel side drop is reached, has realized high-precision control lateral thickness difference, greatly improve the technical effect of lumber recovery.
Description
Technical field
The present invention relates to cold rolling technology field more particularly to a kind of Edge Drop Control sides with gloomy base Mir milling train production silicon steel
Method.
Background technique
Silicon steel is the important raw material of power electronics industry, is mainly employed for the production of the products such as motor, transformer, this
Just to the profiled outline control of cold rolled silicon steel, more stringent requirements are proposed, especially the Edge Drop Control and transverse thick of thin slab product
Difference control even more becomes the difficult point of cold rolling high-precision silicon steel production Strip Shape Control.
But present inventor during technical solution, has found the above-mentioned prior art extremely in realizing the embodiment of the present invention
It has the following technical problems less:
The roll shifting of an intermediate calender rolls roller shape of gloomy base Mir milling train reduces silicon steel side drop to a certain extent in the prior art,
But do not achieve the desired results, to not can be effectively controlled side drop, lateral thickness difference precision is not high, the low technology of lumber recovery
Problem.
Summary of the invention
The embodiment of the present invention is by providing a kind of Edge Drop Control method for producing silicon steel with gloomy base Mir milling train, to solve
The roll shifting of an intermediate calender rolls roller shape of gloomy base Mir milling train reduces silicon steel side drop to a certain extent in the prior art, but not
It achieves the desired results, to not can be effectively controlled side drop, lateral thickness difference precision is not high, the low technical problem of lumber recovery, leads to
It crosses and provides single one intermediate calender rolls roller shape of taper and roll shifting control strategy, reached effective control silicon steel side drop, realized that high-precision is controlled
Lateral thickness difference processed greatly improves the technical effect of lumber recovery.
To solve the above-mentioned problems, the embodiment of the invention provides a kind of sides with gloomy base Mir milling train production silicon steel to drop control
Method processed, which comprises obtain an intermediate calender rolls roll shape curve function；By certain gloomy base Mir milling train physical device parameter, really
A fixed intermediate calender rolls initial radium R0, an intermediate calender rolls barrel length L；Obtain index point coordinate x1And x2；Determine roller shape coefficient k1With a,
b,c；Determine an intermediate calender rolls roller shape.
Preferably, the method also includes: in roll configuration, two upper intermediate calender rolls and two next intermediate calender rolls are opposed
Claim arrangement, and in the initial state, two upper intermediate calender rolls and two next intermediate calender rolls carry out axially in the opposite direction respectively
Play.
Preferably, the method also includes: between shifting amount S and strip width B and an intermediate calender rolls roller shape edge inlet δ
Relationship are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；
B is strip width, unit mm；
S0For the initial shifting amount of an intermediate calender rolls, unit mm；
S is an intermediate calender rolls shifting amount, unit mm.
Preferably, the method also includes: when rolling the first passage, the value of an intermediate calender rolls roller shape edge inlet δ
Range is [160mm, 200mm]；After second passage, the value range of an intermediate calender rolls roller shape edge inlet δ be [150mm,
200mm]。
Preferably, the intermediate calender rolls roll shape curve function specifically:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；
X is using an intermediate calender rolls one end as an intermediate calender rolls body of roll coordinate of endpoint, unit mm；
R0For an intermediate calender rolls initial radium, unit mm；
k1For roller shape coefficient, unit mm-1；
A, b, c are roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；
L is an intermediate calender rolls barrel length, unit mm；
x1And x2For index point coordinate, unit mm.
Preferably, the acquisition index point coordinate x1And x2, specifically:
The index point coordinate x1And x2Calculation formula are as follows:
x1=0.7L1 (2)
X is determined according to formula (2)1, x is determined according to formula (3)2。
Preferably, the determining roller shape coefficient k1With a, b, c, specifically:
According to formula
Wherein, d1For index point coordinate x2Corresponding depth of chamfering, unit mm；
D is the corresponding depth of chamfering in the place body of roll L；
k1For roller shape coefficient, unit mm-1；
L is an intermediate calender rolls barrel length, unit mm.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
1, the embodiment of the present invention is by providing a kind of Edge Drop Control method for producing silicon steel with gloomy base Mir milling train, the side
Method includes: to obtain an intermediate calender rolls roll shape curve function；By certain gloomy base Mir milling train physical device parameter, determine that an intermediate calender rolls are initial
Radius R0, an intermediate calender rolls barrel length L；Obtain index point coordinate x1And x2；Determine roller shape coefficient k1With a, b, c；It determines in one
Between roller roller shape.The roll shifting for solving an intermediate calender rolls roller shape of gloomy base Mir milling train in the prior art reduces silicon to a certain extent
Steel side drop, but do not achieve the desired results, to not can be effectively controlled side drop, lateral thickness difference precision is not high, and lumber recovery is low
Under technical problem reached effective control silicon steel side by providing single one intermediate calender rolls roller shape of taper and roll shifting control strategy
Drop realizes high-precision control lateral thickness difference, greatly improves the technical effect of lumber recovery.
2, the embodiment of the present invention passes through the intermediate calender rolls roll shape curve function specifically:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；X is using an intermediate calender rolls one end as among the one of endpoint
Roller body of roll coordinate, unit mm；R0For an intermediate calender rolls initial radium, unit mm；k1For roller shape coefficient, unit mm-1；a,b,
C is roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；L is an intermediate calender rolls barrel length, unit mm；x1And x2
For index point coordinate, unit mm has further reached the technical effect of effective control silicon steel side drop.
3, the embodiment of the present invention is by roll configuration, by two upper intermediate calender rolls and two next intermediate calender rolls antisymmetry
Arrangement, and in the initial state, two upper intermediate calender rolls and two next intermediate calender rolls carry out axial alter in the opposite direction respectively
It is dynamic；Relationship between shifting amount S and strip width B and an intermediate calender rolls roller shape edge inlet δ are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；B is strip width, unit mm； S0It is one
The initial shifting amount of intermediate calender rolls, unit mm；S is an intermediate calender rolls shifting amount, unit mm；When rolling the first passage, among one
The value range of roller roller shape edge inlet δ is [160mm, 200mm]；After second passage, an intermediate calender rolls roller shape edge enters
The value range for measuring δ is [150mm, 200mm].High-precision control lateral thickness difference is furthermore achieved, greatly improves lumber recovery
Technical effect.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is a kind of process of Edge Drop Control method that silicon steel is produced with gloomy base Mir milling train provided in an embodiment of the present invention
Schematic diagram；
Fig. 2 is an intermediate calender rolls roll shape curve in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of Edge Drop Control methods with gloomy base Mir milling train production silicon steel, solve existing
The roll shifting of an intermediate calender rolls roller shape of gloomy base Mir milling train reduces silicon steel side drop to a certain extent in technology, but does not reach
To desired effect, to not can be effectively controlled side drop, lateral thickness difference precision is not high, the low technical problem of lumber recovery, by giving
Single one intermediate calender rolls roller shape of taper and roll shifting control strategy out have reached effective control silicon steel side drop, have realized that high-precision control is horizontal
It is poor to thickness, greatly improve the technical effect of lumber recovery.
In order to solve the above technical problem, the present invention provides technical solution general thought it is as follows: obtain an intermediate calender rolls roller
Shape curvilinear function；By certain gloomy base Mir milling train physical device parameter, an intermediate calender rolls initial radium R is determined0, an intermediate calender rolls body of roll is long
Spend L；Obtain index point coordinate x1And x2；Determine roller shape coefficient k1With a, b, c；Determine an intermediate calender rolls roller shape.Solves existing skill
The roll shifting of an intermediate calender rolls roller shape of gloomy base Mir milling train reduces silicon steel side drop to a certain extent in art, but does not reach
Desired effect, to not can be effectively controlled side drop, lateral thickness difference precision is not high, the low technical problem of lumber recovery, by providing
Single one intermediate calender rolls roller shape of taper and roll shifting control strategy have reached effective control silicon steel side drop, have realized that high-precision control is lateral
It is thick poor, greatly improve the technical effect of lumber recovery.
Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the present invention
Specific features in embodiment and embodiment are the detailed description to technical scheme, rather than to present techniques
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present invention and embodiment can be combined with each other.
Embodiment one
The embodiment of the invention provides a kind of Edge Drop Control methods with gloomy base Mir milling train production silicon steel, referring to FIG. 1,
The described method includes:
Step S110: an intermediate calender rolls roll shape curve function is obtained；
Further, the intermediate calender rolls roll shape curve function specifically:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；
X is using an intermediate calender rolls one end as an intermediate calender rolls body of roll coordinate of endpoint, unit mm；
R0For an intermediate calender rolls initial radium, unit mm；
k1For roller shape coefficient, unit mm-1；
A, b, c are roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；
L is an intermediate calender rolls barrel length, unit mm；
x1And x2For index point coordinate, unit mm.
Step S120: by certain gloomy base Mir milling train physical device parameter, an intermediate calender rolls initial radium R is determined0, an intermediate calender rolls
Barrel length L；
Step S130: index point coordinate x is obtained1And x2；
Further, the acquisition index point coordinate x1And x2, specifically: the index point coordinate x1And x2Calculating it is public
Formula are as follows:
x1=0.7L1 (2)
X is determined according to formula (2)1, x is determined according to formula (3)2。
Step S140: roller shape coefficient k is determined1With a, b, c；
Further, the determining roller shape coefficient k1With a, b, c, specifically:
According to formula
Wherein, d1For index point coordinate x2Corresponding depth of chamfering, unit mm；
D is the corresponding depth of chamfering in the place body of roll L；
k1For roller shape coefficient, unit mm-1；
L is an intermediate calender rolls barrel length, unit mm.
Step S150: an intermediate calender rolls roller shape is determined.
Specifically, currently, the roll shifting for an intermediate calender rolls roller shape of gloomy base Mir milling train proposition can be to a certain degree
On reduce silicon steel side drop, but do not get a desired effect, therefore the embodiment of the present application provides one kind and is more suitable
The method of gloomy base Mir milling train silicon steel Edge Drop Control drops to control side, improves lateral thickness difference precision.Step S110: by scene
Milling equipment and production band steel plate exterior feature data real-time tracking and data are analyzed, and a kind of single taper conducive to Edge Drop Control is devised
One intermediate calender rolls roller shape, the list one intermediate calender rolls roll shape curve of taper includes three sections of curves, is expressed using piecewise function, wide in plate
In range, while increasing edge drop control capability, Gap crown regulating power is basically unchanged, the roller of list one intermediate calender rolls of taper
Shape curvilinear equation are as follows:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；
X is using an intermediate calender rolls one end as an intermediate calender rolls body of roll coordinate of endpoint, unit mm；
R0For an intermediate calender rolls initial radium, unit mm；
k1For roller shape coefficient, unit mm-1；
A, b, c are roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；
L is an intermediate calender rolls barrel length, unit mm；
x1And x2For index point coordinate, unit mm；
From the roll shape curve equation of an intermediate calender rolls, it can be seen that, to the determination one intermediate calender rolls roller shape
Curvilinear function is then needed to unknown number R in formula (1)0、k1、a、b、c、L、x1And x2It is determined respectively.Step S120: in this Shen
By taking certain gloomy base Mir milling train physical device parameter as an example, an intermediate calender rolls initial radium R please be determined in embodiment0=70mm, in one
Between roller barrel length L=1500mm, and then be transferred to step S130, obtain the index point in the intermediate calender rolls roll shape curve function
Coordinate x1And x2, wherein the acquisition index point coordinate x1And x2, specifically: the index point coordinate x1And x2Specific calculating
Formula are as follows:
x1=0.7L1 (2)
According to formula (2), the intermediate calender rolls barrel length L=1500mm obtained in step 120 is substituted into formula (2)
In, i.e. x1=0.7 × 1500, and then determine x1=1050mm, according to formula (3), among obtained in step 120 described one
Roller barrel length L=1500mm is substituted into formula (3), i.e.,And then determine x2=1300mm.Next enter
To step S140: determining roller shape coefficient k1With a, b, c, wherein the determining roller shape coefficient k1With a, b, c, specifically:
According to formula
Wherein, d1For index point coordinate x2Corresponding depth of chamfering, unit mm；
D is the corresponding depth of chamfering in the place body of roll L；
k1For roller shape coefficient, unit mm-1；
L is an intermediate calender rolls barrel length, unit mm.
By determining best depth of chamfering d to live milling train virtual condition and theory analysis1=0.30mm, d=
0.80mm；Further combined with step S120 and S130, roller shape coefficient k is determined1With a, b, c, wherein k1=4.8 × 10-5mm-1；a
=5.0 × 10-7mm-1, b=1.1 × 10-3, c=-2.275mm.
Step S150: S110~S140 through the above steps, it is each unknown in the roll shape curve equation of an intermediate calender rolls
Parameter is determined, therefore the roll shape curve equation of one intermediate calender rolls of single taper can be expressed further are as follows:
The technical effect of effective control cold rolled silicon steel side drop is further reached.
Further, the method also includes: in roll configuration, two upper intermediate calender rolls and two next intermediate calender rolls are anti-
It is arranged symmetrically, and in the initial state, two upper intermediate calender rolls and two next intermediate calender rolls carry out axis in the opposite direction respectively
To play.
Further, the method also includes: a shifting amount S and strip width B and intermediate calender rolls roller shape edge inlet δ it
Between relationship are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；
B is strip width, unit mm；
S0For the initial shifting amount of an intermediate calender rolls, unit mm；
S is an intermediate calender rolls shifting amount, unit mm.
Further, the method also includes: when rolling the first passage, an intermediate calender rolls roller shape edge inlet δ's is taken
Being worth range is [160mm, 200mm]；After second passage, the value range of an intermediate calender rolls roller shape edge inlet δ be [150mm,
200mm]。
Specifically, in the case where the roll shape curve to an intermediate calender rolls determines, further to an intermediate calender rolls
Roll shape curve under the rolled specification strip steel width of gloomy base Mir milling train under an intermediate calender rolls shifting amount be determined, match in roll
When setting, two upper intermediate calender rolls and two next intermediate calender rolls antisymmetry are arranged, and in the initial state, two upper intermediate calender rolls with
Two next intermediate calender rolls carry out axial float in the opposite direction respectively.When rolling width is the strip of B, shifting amount S and band
Relationship between steel width B and an intermediate calender rolls roller shape edge inlet δ are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；
B is strip width, unit mm；
S0For the initial shifting amount of an intermediate calender rolls, unit mm；
S is an intermediate calender rolls shifting amount, unit mm.
When the gloomy base Mir milling train carries out practical roll configuration, an intermediate roll shifting initial position S0=60mm is rolling
When making the first passage, the value range of an intermediate calender rolls roller shape edge inlet δ is [160mm, 200mm], after the second passage, one
The value range of intermediate calender rolls roller shape edge inlet δ is that [150mm, 200mm] can be counted according to the value range of δ according to formula (5)
Calculation obtains the strip of actual production B=1060mm, and when rolling the first passage, the control range of an intermediate calender rolls shifting amount S is
[90mm, 130mm], after the second passage, the control range of an intermediate calender rolls shifting amount S is [90mm, 140mm].
From commerical test angle, using the intermediate calender rolls roller shape, and one intermediate calender rolls shifting amount S when the first passage of rolling
Control range is [90mm, 130mm], after rolling the second passage, the control range of an intermediate calender rolls shifting amount S be [90mm,
140mm] technique production width be 1060mm, finished product thickness be 0.3mm silicon steel, the ratio with plate difference D25≤5 μm is by institute
67.53% before stating intermediate calender rolls roller shape investment improves to 90%, and high-precision control lateral thickness difference is furthermore achieved, mentions significantly
The technical effect of high yield.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
1, the embodiment of the present invention is by providing a kind of Edge Drop Control method for producing silicon steel with gloomy base Mir milling train, the side
Method includes: to obtain an intermediate calender rolls roll shape curve function；By certain gloomy base Mir milling train physical device parameter, determine that an intermediate calender rolls are initial
Radius R0, an intermediate calender rolls barrel length L；Obtain index point coordinate x1And x2；Determine roller shape coefficient k1With a, b, c；It determines in one
Between roller roller shape.The roll shifting for solving an intermediate calender rolls roller shape of gloomy base Mir milling train in the prior art reduces silicon to a certain extent
Steel side drop, but do not achieve the desired results, to not can be effectively controlled side drop, lateral thickness difference precision is not high, and lumber recovery is low
Under technical problem reached effective control silicon steel side by providing single one intermediate calender rolls roller shape of taper and roll shifting control strategy
Drop realizes high-precision control lateral thickness difference, greatly improves the technical effect of lumber recovery.
2, the embodiment of the present invention passes through the intermediate calender rolls roll shape curve function specifically:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；X is using an intermediate calender rolls one end as among the one of endpoint
Roller body of roll coordinate, unit mm；R0For an intermediate calender rolls initial radium, unit mm；k1For roller shape coefficient, unit mm-1；a,b,
C is roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；L is an intermediate calender rolls barrel length, unit mm；x1And x2
For index point coordinate, unit mm has further reached the technical effect of effective control silicon steel side drop.
3, the embodiment of the present invention is by roll configuration, by two upper intermediate calender rolls and two next intermediate calender rolls antisymmetry
Arrangement, and in the initial state, two upper intermediate calender rolls and two next intermediate calender rolls carry out axial alter in the opposite direction respectively
It is dynamic；Relationship between shifting amount S and strip width B and an intermediate calender rolls roller shape edge inlet δ are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；B is strip width, unit mm； S0It is one
The initial shifting amount of intermediate calender rolls, unit mm；S is an intermediate calender rolls shifting amount, unit mm；When rolling the first passage, among one
The value range of roller roller shape edge inlet δ is [160mm, 200mm]；After second passage, an intermediate calender rolls roller shape edge enters
The value range for measuring δ is [150mm, 200mm].High-precision control lateral thickness difference is furthermore achieved, greatly improves lumber recovery
Technical effect.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of Edge Drop Control method with gloomy base Mir milling train production silicon steel, which is characterized in that the described method includes:
Obtain an intermediate calender rolls roll shape curve function；
By certain gloomy base Mir milling train physical device parameter, an intermediate calender rolls initial radium R is determined0, an intermediate calender rolls barrel length L；
Obtain index point coordinate x1And x2；
Determine roller shape coefficient k1With a, b, c；
Determine an intermediate calender rolls roller shape.
2. the method as described in claim 1, which is characterized in that the method also includes:
In roll configuration, two upper intermediate calender rolls and two next intermediate calender rolls antisymmetry are arranged, and in the initial state, two
A upper intermediate calender rolls and two next intermediate calender rolls carry out axial float in the opposite direction respectively.
3. method according to claim 2, which is characterized in that the method also includes:
Relationship between shifting amount S and strip width B and an intermediate calender rolls roller shape edge inlet δ are as follows:
Wherein, δ is an intermediate calender rolls roller shape edge inlet, unit mm；
B is strip width, unit mm；
S0For the initial shifting amount of an intermediate calender rolls, unit mm；
S is an intermediate calender rolls shifting amount, unit mm.
4. method as claimed in claim 3, which is characterized in that the method also includes:
When rolling the first passage, the value range of an intermediate calender rolls roller shape edge inlet δ is [160mm, 200mm]；
After second passage, the value range of an intermediate calender rolls roller shape edge inlet δ is [150mm, 200mm].
5. the method as described in claim 1, which is characterized in that the intermediate calender rolls roll shape curve function specifically:
In formula, y (x) is an intermediate calender rolls function of radius, unit mm；
X is using an intermediate calender rolls one end as an intermediate calender rolls body of roll coordinate of endpoint, unit mm；
R0For an intermediate calender rolls initial radium, unit mm；
k1For roller shape coefficient, unit mm-1；
A, b, c are roller shape coefficient, and a unit is mm-1, b dimensionless, c unit is mm；
L is an intermediate calender rolls barrel length, unit mm；
x1And x2For index point coordinate, unit mm.
6. the method as described in claim 1, which is characterized in that the acquisition index point coordinate x1And x2, specifically:
The index point coordinate x1And x2Calculation formula are as follows:
x1=0.7L1 (2)
X is determined according to formula (2)1, x is determined according to formula (3)2。
7. the method as described in claim 1, which is characterized in that the determining roller shape coefficient k1With a, b, c, specifically:
According to formula
Wherein, d1For index point coordinate x2Corresponding depth of chamfering, unit mm；
D is the corresponding depth of chamfering in the place body of roll L；
k1For roller shape coefficient, unit mm-1；
L is an intermediate calender rolls barrel length, unit mm.
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| CN201810861619.XA CN109158429B (en) | 2018-08-01 | 2018-08-01 | Edge drop control method for producing silicon steel by Sendzimir rolling mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113926853A (en) * | 2021-09-15 | 2022-01-14 | 首钢智新迁安电磁材料有限公司 | Rolling method and device for high-grade non-oriented silicon steel |
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| CN113926853A (en) * | 2021-09-15 | 2022-01-14 | 首钢智新迁安电磁材料有限公司 | Rolling method and device for high-grade non-oriented silicon steel |
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