CN108676995A - A kind of method and device preventing strip sideslip in vertical annealing furnace - Google Patents
A kind of method and device preventing strip sideslip in vertical annealing furnace Download PDFInfo
- Publication number
- CN108676995A CN108676995A CN201810402277.5A CN201810402277A CN108676995A CN 108676995 A CN108676995 A CN 108676995A CN 201810402277 A CN201810402277 A CN 201810402277A CN 108676995 A CN108676995 A CN 108676995A
- Authority
- CN
- China
- Prior art keywords
- strip
- sideslip
- furnace roller
- furnace
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
An embodiment of the present invention provides a kind of method and device preventing strip sideslip in vertical annealing furnace, method includes：Sideslip data of the strip in vertical annealing furnace are obtained, the first sideslip factor and the second sideslip factor are determined according to sideslip data；Sideslip risks and assumptions are determined according to the length of the width of strip, furnace roller platformThe maximum static friction force f of strip is determined according to the straight segment length of the acceleration of gravity of friction coefficient, strip, the taper angle of furnace roller and furnace roller between the density of strip, strip and furnace roller；The centering force σ of strip is determined according to the cornerite of the unit tension of strip, the width of strip, the taper angle of furnace roller, the straight segment length of furnace roller and stripcenter；When determining sideslip risks and assumptionsWhen, judge σcenterWhether the f is more than；If σcenterLess than f, determines that strip is snakelike sideslip, the first sideslip factor is adjusted according to the first adjustment standard；If the σcenterNot less than the f, determines that strip is moment sideslip, the second sideslip factor is adjusted according to second adjustment standard.
Description
Technical field
The invention belongs to iron and steel smelting technology field more particularly to a kind of sides preventing strip sideslip in vertical annealing furnace
Method and device.
Background technology
Vertical annealing furnace is mainly used for acid and rolls the annealing rolled up firmly so that and it rolls the mechanical property rolled up firmly and reaches needs,
So as to follow-up deep processing.Annealing process includes mainly：Preheating, heating, soaking, cooling, overaging and water quenching (air-cooled)
Processing, to prevent strip from aoxidizing when heated, annealing furnace is confined space, and sideslip once occurs in stove for strip, if cannot
It finds in time, strip running deviation amount, which is stepped up, to be eventually led to unit and be forced to stop, and is run out of furnace roller to prevent stop-band steel and is scratched in stove and sets
It is standby.
It can be seen that strip sideslip in vertical annealing furnace exists in the prior art, unit is caused to be forced to stop, reduces life
The technical issues of producing efficiency.
Invention content
In view of the problems of the existing technology, an embodiment of the present invention provides one kind to prevent strip from being run in vertical annealing furnace
Inclined method and device causes unit to be forced to stop, reduces for solving strip sideslip in vertical annealing furnace in the prior art
The technical issues of production efficiency.
The present invention provides a kind of method preventing strip sideslip in vertical annealing furnace, the method includes：
Sideslip data of the strip in vertical annealing furnace are obtained, determine snakelike sideslip according to the sideslip data first runs
Bias the second sideslip factor of son and moment sideslip；The first sideslip factor includes：The outlet of bringing-up section in vertical annealing furnace
Temperature and stove area speed, the second sideslip factor include：The rate of temperature fall of bringing-up section in the vertical annealing furnace；
Sideslip risks and assumptions are determined according to the length of the width of the strip, furnace roller platform
Added according to the gravity of friction coefficient, the strip between the density of the strip, the strip and the furnace roller
The straight segment length of speed, the taper angle of the furnace roller and the furnace roller determines the maximum static friction force f of the strip；
According to the unit tension of the strip, the width of the strip, the taper angle of the furnace roller, the furnace roller it is flat
The cornerite of straight section length and the strip determines the centering force σ of the stripcenter；
When determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；
If the σcenterLess than the f, determine that the strip is snakelike sideslip, then according to preset the first adjustment standard
Adjust the first sideslip factor；If the σcenterNot less than the f, determine that the strip is moment sideslip, then according to default
Second adjustment standard adjust the second sideslip factor.
It is described that sideslip risks and assumptions are determined according to the width of the strip, the length of furnace roller platform in said programPacket
It includes：
According to formulaDetermine the sideslip risks and assumptionsWherein, the W is the width of the strip
Degree, the TLhotFor the length of the furnace roller platform, a is width compensation coefficient, and the value range of a is 50~80.
In said program, the friction coefficient according between the density of the strip, the strip and the furnace roller, institute
The straight segment length for stating the acceleration of gravity of strip, the taper angle of the furnace roller and the furnace roller determines the maximum of the strip
Stiction f, including：
According to formula f=ρstripSin β (W-SL) μ g determine the maximum static friction force f of the strip；Wherein, the ρstrip
For the density of the strip, the μ is friction coefficient between the strip and the furnace roller, the weight that the g is the strip
Power acceleration, the W are the width of the strip；The SL is the straight segment length of the furnace roller, and the β is the furnace roller
Taper angle.
It is described according to the unit tension of the strip, the taper angle of the width of the strip, the furnace roller in said program
The cornerite of degree, the straight segment length of the furnace roller and the strip determines the centering force σ of the stripcenter, including：
According to formulaDetermine the centering force σ of the stripcenter；
Wherein, the σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, and the θ is the strip
Cornerite, the SL are the straight segment length of the furnace roller, and the W is the width of the strip.
It is described to adjust the first sideslip factor according to preset the first adjustment standard in said program, including：
According to preset the first adjustment standard by the power adjustment of each heating region in the vertical annealing furnace be phase
Deng.
It is described to adjust the second sideslip factor according to preset second adjustment standard in said program, including：
The rate of temperature fall of bringing-up section in the vertical annealing furnace is adjusted to 2 according to the preset second adjustment standard
DEG C/min~4.5 DEG C/min.
The present invention also provides a kind of device preventing strip sideslip in vertical annealing furnace, described device includes：
Acquiring unit determines snake for obtaining sideslip data of the strip in vertical annealing furnace according to the sideslip data
The first sideslip factor of shape sideslip and the second sideslip factor of moment sideslip；The first sideslip factor includes：Vertical annealing furnace
The outlet temperature and stove area speed of middle bringing-up section, the second sideslip factor include：The drop of bringing-up section in the vertical annealing furnace
Warm rate；
First determination unit, for determining sideslip risks and assumptions according to the width of the strip, the length of furnace roller platform
Second determination unit, for according between the density of the strip, the strip and the furnace roller friction coefficient,
The straight segment length of the acceleration of gravity of the strip, the taper angle of the furnace roller and the furnace roller platform determines the strip
Maximum static friction force f；
Third determination unit, for the taper according to the unit tension of the strip, the width of the strip, the furnace roller
The cornerite of angle, the straight segment length of the furnace roller and the strip determines the centering force σ of the stripcenter；
Judging unit, for when the determining sideslip risks and assumptionsWhen, judge the σcenterWhether it is more than described
f；
The first adjustment unit, in the σcenterLess than the f, when determining that the strip is snakelike sideslip, then according to
Preset the first adjustment standard adjusts the first sideslip factor；
Second adjustment unit, in the σcenterIt is then pressed when determining that the strip is moment sideslip not less than the f
The second sideslip factor is adjusted according to preset second adjustment standard.
In said program, first determination unit is specifically used for：
According to formulaDetermine the sideslip risks and assumptionsWherein, the W is the width of the strip
Degree, the TLhotFor the length of the furnace roller platform, a is width compensation coefficient, and the value range of a is 50~80.
In said program, second determination unit is specifically used for：
According to formula f=ρstripSin β (W-SL) μ g determine the maximum static friction force f of the strip；Wherein, the ρstrip
For the density of the strip, the μ is friction coefficient between the strip and the furnace roller, the weight that the g is the strip
Power acceleration, the W are the width of the strip；The SL is the straight segment length of the furnace roller, and the β is the furnace roller
Taper angle.
In said program, second determination unit is specifically used for：
According to formulaDetermine the centering force σ of the stripcenter；
Wherein, the σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, and the θ is the strip
Cornerite, the SL are the straight segment length of the furnace roller, and the W is the width of the strip.
An embodiment of the present invention provides a kind of method and device preventing strip sideslip in vertical annealing furnace, the methods
Including：Sideslip data of the strip in vertical annealing furnace are obtained, the first sideslip of snakelike sideslip is determined according to the sideslip data
The second sideslip factor of the factor and moment sideslip；The first sideslip factor includes：The outlet temperature of bringing-up section in vertical annealing furnace
The areas Du Jilu speed, the second sideslip factor include：The rate of temperature fall of bringing-up section in the vertical annealing furnace；According to the band
The width of steel, the length of furnace roller platform determine sideslip risks and assumptionsAccording to the density of the strip, the strip and the stove
The acceleration of gravity of friction coefficient, the strip, the taper angle of the furnace roller and the furnace roller platform between roller it is straight
Segment length determines the maximum static friction force f of the strip；According to the unit tension of the strip, the width, described of the strip
The cornerite of the taper angle of furnace roller, the straight segment length of the furnace roller platform and the strip determines the centering force of the strip
σcenter；When determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；If the σcenterIt is small
In the f, determines that the strip is snakelike sideslip, then adjust the first sideslip factor according to preset the first adjustment standard；
If the σcenterNot less than the f, determines that the strip is moment sideslip, then adjust institute according to preset second adjustment standard
State the second sideslip factor；In this way, sideslip risks and assumptions are determined, when there are strip running deviation risks according to the determination of sideslip risks and assumptions
When, the sideslip factor can be adjusted, thus can to avoid strip in vertical annealing furnace sideslip, avoid unit from being forced to stop
Vehicle improves production efficiency.
Description of the drawings
Fig. 1 is the method flow schematic diagram for preventing strip sideslip in vertical annealing furnace that the embodiment of the present invention one provides；
Fig. 2 is the apparatus structure schematic diagram provided by Embodiment 2 of the present invention for preventing strip sideslip in vertical annealing furnace；
Fig. 3 is the contrast schematic diagram before and after the adjustment sideslip factor that the embodiment of the present invention three provides.
Specific implementation mode
In order to solve strip sideslip in vertical annealing furnace in the prior art, causes unit to be forced to stop, reduce production effect
The technical issues of rate, the present invention provides a kind of method and device preventing strip sideslip in vertical annealing furnace, the methods
Including：Sideslip data of the strip in vertical annealing furnace are obtained, the first sideslip of snakelike sideslip is determined according to the sideslip data
The second sideslip factor of the factor and moment sideslip；The first sideslip factor includes：The outlet temperature of bringing-up section in vertical annealing furnace
The areas Du Jilu speed, the second sideslip factor include：The rate of temperature fall of bringing-up section in the vertical annealing furnace；According to the band
The width of steel, the length of furnace roller platform determine sideslip risks and assumptionsAccording to the density of the strip, the strip and the stove
The acceleration of gravity of friction coefficient, the strip, the taper angle of the furnace roller and the furnace roller platform between roller it is straight
Segment length determines the maximum static friction force f of the strip；According to the unit tension of the strip, the width, described of the strip
The cornerite of the taper angle of furnace roller, the straight segment length of the furnace roller platform and the strip determines the centering force of the strip
σcenter；When determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；If the σcenterIt is small
In the f, determines that the strip is snakelike sideslip, then adjust the first sideslip factor according to preset the first adjustment standard；
If the σcenterNot less than the f, determines that the strip is moment sideslip, then adjust institute according to preset second adjustment standard
State the second sideslip factor.
Technical scheme of the present invention is described in further detail below by drawings and the specific embodiments.
Embodiment one
The present embodiment provides a kind of methods preventing strip sideslip in vertical annealing furnace, as shown in Figure 1, the method packet
It includes：
S110 obtains sideslip data of the strip in vertical annealing furnace, snakelike sideslip is determined according to the sideslip data
The second sideslip factor of the first sideslip factor and moment sideslip；
In this step, the strip sideslip that bringing-up section exports in vertical annealing furnace can be divided into snakelike sideslip and moment runs
Partially, in order to which quantitative analysis can be carried out to sideslip, sideslip data of the strip in vertical annealing furnace are obtained, according to the sideslip number
According to the first sideslip factor of the snakelike sideslip of determination and the second sideslip factor of moment sideslip.
Here, the first sideslip factor includes：The outlet temperature of bringing-up section and stove area speed, described in vertical annealing furnace
The second sideslip factor includes：The rate of temperature fall and strip width of bringing-up section in the vertical annealing furnace.
S111 determines sideslip risks and assumptions according to the length of the width of the strip, furnace roller platform
After determining the first sideslip factor and the second sideslip factor, in order to can be with quantitative analysis strip in vertical annealing furnace
The sideslip process for exporting bringing-up section, the sideslip risks and assumptions of the strip are determined according to formula (1)
In formula (1), the W is the width of the strip, the TLhotFor the length of the furnace roller platform, a
Value range for constant, a is 50~80.
WhenWhen, indicate that the width of furnace roller platform is identical as the strip width for removing edge, i.e. the corresponding furnace roller of strip
No positive convexity (also without negative convexity), in the state for losing self correction ability.
WhenWhen, indicate that the width of furnace roller platform is less than the strip width for removing edge, i.e. the corresponding furnace roller of strip is deposited
In convexity, the corresponding furnace roller of strip also includes two kinds of situations there are convexity here：
The first, whenWhen, there are positive convexity, furnace rollers to have certain self correction energy for the corresponding furnace roller part of strip
Power；
Second, whenWhen, the corresponding furnace roller part of strip, which exists, bears convexity, loses self correction ability；
Wherein, x0Distance for furnace roller center line apart from furnace roller axis,For furnace roller central point to the corresponding furnace roller axis of m points
The average value of linear distance.Here, since central point is to there is numerous point between m points, so need to integrate each distance,
It is averaged.
WhenWhen, indicate that the width of furnace roller platform is more than the strip width for removing edge, i.e. the corresponding furnace roller of strip is several
All platforms, furnace roller lose self correction ability.
Here, furnace roller includes flat segments and sloped region, and the furnace roller platform refers in annealing furnace under Warm status, along furnace roller
The furnace roller part of length direction opposing straight.Furnace roller land lengths are point by Platform center of furnace roller center；Furnace roller length direction
On, in length of the furnace roller roll thermal crown maximum difference no more than 1 μm namely furnace roller platform of any two points in any point and furnace roller
Heart point meets formula (2)：
|xi-xj|≤1μm (2)
In formula (2), the x indicates that furnace roller roll thermal crown, the i and j indicate the subscript of furnace roller platform any two points.
When a certain position of furnace roller edge is unsatisfactory for formula (2), it is determined that the position is located at the sloped region of furnace roller, and will
The subscript of the position is considered as the maximum subscript on furnace roller platform, is denoted as m, length of the point m apart from furnace roller center is L, then furnace roller
The length TL of platformhotIt can be obtained according to formula (3)：
TLhot=2*L (3)
S112, according to the weight of friction coefficient, the strip between the density of the strip, the strip and the furnace roller
The straight segment length of power acceleration, the taper angle of the furnace roller and the furnace roller determines the maximum static friction force f of the strip；
Determine sideslip risks and assumptionsAfterwards, in order to distinguish strip also needed according to public affairs for snakelike sideslip or moment sideslip
Formula (4) determines the maximum static friction force f of the strip：
F=ρstripsinβ(W-SL)μg (4)
In formula (4), the ρstripFor the density of the strip, the μ is between the strip and the furnace roller
Friction coefficient, the acceleration of gravity that the g is the strip, the W are the width of the strip；The SL is the furnace roller
Straight segment length, the β are the taper angle of the furnace roller.
S113, according to the unit tension of the strip, the width of the strip, the taper angle of the furnace roller, the stove
The cornerite of the straight segment length and the strip that roll out platform determines the centering force σ of the stripcenter；
After the maximum static friction force f for determining strip, this step also needs to determine the centering force of strip according to formula (5)
σcenter：
In formula (5), the σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, institute
The cornerite that θ is the strip is stated, the SL is the straight segment length of the furnace roller, and the W is the width of the strip.
S114, when determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；
After determining above-mentioned parameter, when strip heats in vertical furnace roller, the value of meeting timing acquisition sideslip risks and assumptions,
When determining the sideslip risks and assumptionsWhen, it is determined that furnace roller, which is presented, bears convexity platform status, and strip has sideslip wind at this time
Danger.So in order to which determination is snakelike sideslip or moment sideslip, will continue to judge σcenterWhether the f is more than；If described
σcenterNot less than the f, S116 is thened follow the steps；If the σcenterLess than the f, S115 is thened follow the steps.
S115 determines that the strip is snakelike sideslip, then adjusts first sideslip according to preset the first adjustment standard
The factor；
In this step, if the σcenterLess than the f, determine that the strip is snakelike sideslip, then according to preset first
Adjustment standard adjusts the first sideslip factor.
Specifically, the heating mode of bringing-up section is adjusted to ratio mode according to preset the first adjustment standard, i.e., in stove
The power of each heating region is equal.Here, heating region includes multiple, and the number of heating region is according to vertical annealing
The size of stove determines.
S116 determines that the strip is moment sideslip, then adjusts second sideslip according to preset second adjustment standard
The factor.
If the σcenterNot less than the f, determine that the strip is moment sideslip, then according to preset second adjustment mark
Standard adjusts the second sideslip factor.
Specifically, according to the preset second adjustment standard by the rate of temperature fall tune of bringing-up section in the vertical annealing furnace
It is whole to 2 DEG C/min~4.5 DEG C/min.
In this way by exporting the correlation of the sideslip factor in bringing-up section to strip to the variation of quantitative furnace roll crown, dynamically to adjust
The whole first sideslip factor and the second sideslip factor prevent strip from exporting sideslip in the bringing-up section of vertical annealing furnace.
Embodiment two
Corresponding to embodiment one, the present embodiment also provides a kind of device preventing strip sideslip in vertical annealing furnace, such as
Shown in Fig. 2, described device includes：Acquiring unit 21, the first determination unit 22, the second determination unit 23, third determination unit 24,
Judging unit 25, the first adjustment unit 26 and second adjustment unit 27；Wherein,
The strip sideslip that bringing-up section exports in vertical annealing furnace can be divided into snakelike sideslip and moment sideslip, in order to can be with
Quantitative analysis is carried out to sideslip, acquiring unit 21 is for obtaining sideslip data of the strip in vertical annealing furnace, according to the race
Inclined data determine the first sideslip factor of snakelike sideslip and the second sideslip factor of moment sideslip.Here, first sideslip because
Attached bag includes：The outlet temperature of bringing-up section and stove area speed, the second sideslip factor include in vertical annealing furnace：It is described vertical to move back
The rate of temperature fall and strip width of bringing-up section in stove.
After determining the first sideslip factor and the second sideslip factor, in order to can be with quantitative analysis strip in vertical annealing furnace
The sideslip process of bringing-up section is exported, the first determination unit 22 is used to determine the sideslip risks and assumptions of the strip according to formula (1)
In formula (1), the W is the width of the strip, the TLhotFor the length of the furnace roller platform, a
Value range for constant, a is 50~80.
WhenWhen, indicate that the width of furnace roller platform is identical as the strip width for removing edge, i.e. the corresponding furnace roller of strip
No positive convexity (also without negative convexity), in the state for losing self correction ability.
WhenWhen, indicate that the width of furnace roller platform is less than the strip width for removing edge, i.e. the corresponding furnace roller of strip is deposited
In convexity, the corresponding furnace roller of strip also includes two kinds of situations there are convexity here：
The first, whenWhen, there are positive convexity, furnace rollers to have certain self correction energy for the corresponding furnace roller part of strip
Power；
Second, whenWhen, the corresponding furnace roller part of strip, which exists, bears convexity, loses self correction ability；
Wherein, x0Distance for furnace roller center line apart from furnace roller axis,For furnace roller central point to the corresponding furnace roller axis of m points
The average value of linear distance.Here, since central point is to there is numerous point between m points, so need to integrate each distance,
It is averaged.
WhenWhen, indicate that the width of furnace roller platform is more than the strip width for removing edge, i.e. the corresponding furnace roller of strip is several
All platforms, furnace roller lose self correction ability.
Here, furnace roller includes flat segments and sloped region, and the furnace roller platform refers in annealing furnace under Warm status, along furnace roller
The furnace roller part of length direction opposing straight.Furnace roller land lengths are point by Platform center of furnace roller center；Furnace roller length direction
On, in length of the furnace roller roll thermal crown maximum difference no more than 1 μm namely furnace roller platform of any two points in any point and furnace roller
Heart point meets formula (2)：
|xi-xj|≤1μm (2)
In formula (2), the x indicates that furnace roller roll thermal crown, the i and j indicate the subscript of furnace roller platform any two points.
When a certain position of furnace roller edge is unsatisfactory for formula (2), it is determined that the position is located at the sloped region of furnace roller, and will
It is that length of the point m apart from furnace roller center is L, then stove that the subscript of the position, which is considered as label under the maximum that certain is put on furnace roller platform,
Roll out the length TL of platformhotIt can be obtained according to formula (3)：
TLhot=2*L (3)
Determine sideslip risks and assumptionsAfterwards, it is to determine list for snakelike sideslip or moment sideslip, second to distinguish strip
Member 23 also needs to determine the maximum static friction force f of the strip according to formula (4)：
F=ρstripsinβ(W-SL)μg (4)
In formula (4), the ρstripFor the density of the strip, the μ is between the strip and the furnace roller
Friction coefficient, the acceleration of gravity that the g is the strip, the W are the width of the strip；The SL is the furnace roller
Straight segment length, the β are the taper angle of the furnace roller.
After the maximum static friction force f for determining strip, third determination unit 24 also needs to determine strip according to formula (5)
Centering force σcenter：
In formula (5), the σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, institute
The cornerite that θ is the strip is stated, the SL is the straight segment length of the furnace roller, and the W is the width of the strip.
After determining above-mentioned parameter, when strip heats in vertical furnace roller, judging unit 25 can timing acquisition sideslip wind
The value of the dangerous factor, when determining the sideslip risks and assumptionsWhen, when determining the sideslip risks and assumptionsWhen, it is determined that
Furnace roller, which is presented, bears convexity platform status, and strip has sideslip risk at this time.So in order to which determination is snakelike sideslip or moment sideslip,
It will continue to judge σcenterWhether the f is more than.
Work as σcenterMore than or equal to the f；Second adjustment unit 27 is used in the σcenterNot less than the f, determine
When the strip is moment sideslip, then the second sideslip factor is adjusted according to preset second adjustment standard.Specifically, second
Adjustment unit 27 adjusts the rate of temperature fall of bringing-up section in the vertical annealing furnace to 2 according to the preset second adjustment standard
DEG C/min~4.5 DEG C/min.
Work as σcenterWhen less than the f；The first adjustment unit 26 is used in the σcenterLess than the f, the band is determined
When steel is snakelike sideslip, then the first sideslip factor is adjusted according to preset the first adjustment standard；Specifically, the first adjustment list
The heating mode of bringing-up section is adjusted to ratio mode by member 26 according to preset the first adjustment standard, i.e., each heating zone in stove
The power in domain is equal.Here, heating region includes multiple, and the number of heating region is true according to the size of vertical annealing furnace
It is fixed.
Embodiment three
When practical application, the device provided using the method and embodiment two that embodiment one provides is applied in certain unit
When, through determining that the unit is snakelike sideslip, then vertical furnace roller bringing-up section exit region temperature is dropped by 920 DEG C (normal modes)
Down to 900 DEG C (ratio modes), successfully avoids strip and export " snakelike " sideslip in bringing-up section, as shown in figure 3, before wherein optimizing
Bringing-up section heating mode is normal mode, and rectifying cylinder cyclical action, characterization strip is on outlet presentation " snakelike sideslip " (left side
The signified place of arrow), optimization rear heat zone heating mode is ratio mode, and rectifying cylinder aperiodicity acts, and presentation one is straight
Line (the signified place of right arrow), characterization strip, without " snakelike sideslip ", works well in outlet.
It is provided in an embodiment of the present invention that prevent the method and device of strip sideslip in vertical annealing furnace from can bring beneficial
Effect is at least：
An embodiment of the present invention provides a kind of method and device preventing strip sideslip in vertical annealing furnace, the methods
Including：Sideslip data of the strip in vertical annealing furnace are obtained, the first sideslip of snakelike sideslip is determined according to the sideslip data
The second sideslip factor of the factor and moment sideslip；The first sideslip factor includes：The outlet temperature of bringing-up section in vertical annealing furnace
The areas Du Jilu speed, the second sideslip factor include：The rate of temperature fall of bringing-up section in the vertical annealing furnace；According to the band
The width of steel, the length of furnace roller platform determine sideslip risks and assumptionsAccording to the density of the strip, the strip and the stove
The acceleration of gravity of friction coefficient, the strip, the taper angle of the furnace roller and the furnace roller platform between roller it is straight
Segment length determines the maximum static friction force f of the strip；According to the unit tension of the strip, the width, described of the strip
The cornerite of the taper angle of furnace roller, the straight segment length of the furnace roller platform and the strip determines the centering force of the strip
σcenter；When determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；If the σcenterIt is small
In the f, determines that the strip is snakelike sideslip, then adjust the first sideslip factor according to preset the first adjustment standard；
If the σcenterNot less than the f, determines that the strip is moment sideslip, then adjust institute according to preset second adjustment standard
State the second sideslip factor；In this way, sideslip risks and assumptions are determined, when there are strip running deviation risks according to the determination of sideslip risks and assumptions
When, the sideslip factor can be adjusted, thus can to avoid strip in vertical annealing furnace sideslip, avoid unit from being forced to stop
Vehicle improves production efficiency.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of method preventing strip sideslip in vertical annealing furnace, which is characterized in that the method includes：
Obtain sideslip data of the strip in vertical annealing furnace, according to the sideslip data determine the first sideslip of snakelike sideslip because
The second sideslip factor of son and moment sideslip；The first sideslip factor includes：The outlet temperature of bringing-up section in vertical annealing furnace
And stove area speed, the second sideslip factor include：The rate of temperature fall of bringing-up section in the vertical annealing furnace；
Sideslip risks and assumptions are determined according to the length of the width of the strip, furnace roller platform
According to the acceleration of gravity of friction coefficient, the strip between the density of the strip, the strip and furnace roller, described
The straight segment length of the taper angle of furnace roller and the furnace roller determines the maximum static friction force f of the strip；
According to the flat segments of the unit tension of the strip, the width of the strip, the taper angle of the furnace roller, the furnace roller
The cornerite of length and the strip determines the centering force σ of the stripcenter；
When determining the sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；
If the σcenterLess than the f, determines that the strip is snakelike sideslip, then adjusted according to preset the first adjustment standard
The first sideslip factor；If the σcenterNot less than the f, determine that the strip is moment sideslip, then according to preset the
Two adjustment standards adjust the second sideslip factor.
2. the method as described in claim 1, which is characterized in that the width according to the strip, furnace roller platform length
Determine sideslip risks and assumptionsIncluding：
According to formulaDetermine the sideslip risks and assumptionsWherein, the W is the width of the strip, institute
State TLhotFor the length of the furnace roller platform, a is width compensation coefficient, and the value range of a is 50~80.
3. the method as described in claim 1, which is characterized in that the density according to the strip, the strip with it is described
The flat segments of the acceleration of gravity of friction coefficient, the strip, the taper angle of the furnace roller and the furnace roller between furnace roller
Length determines the maximum static friction force f of the strip, including：
According to formula f=ρstripSin β (W-SL) μ g determine the maximum static friction force f of the strip；Wherein, the ρstripFor institute
State the density of strip, the μ is that friction coefficient between the strip and the furnace roller, the gravity that the g is the strip add
Speed, the W are the width of the strip；The SL is the straight segment length of the furnace roller, and the β is the taper of the furnace roller
Angle.
4. the method as described in claim 1, which is characterized in that the unit tension according to the strip, the strip
Width, the taper angle of the furnace roller, the straight segment length of the furnace roller and the strip cornerite determine pair of the strip
Middle power σcenter, including：
According to formulaDetermine the centering force σ of the stripcenter；Wherein,
The σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, and the θ is the cornerite of the strip,
The SL is the straight segment length of the furnace roller, and the W is the width of the strip.
5. the method as described in claim 1, which is characterized in that described to adjust described first according to preset the first adjustment standard
The sideslip factor, including：
According to preset the first adjustment standard by the power adjustment of each heating region in the vertical annealing furnace be it is equal.
6. the method as described in claim 1, which is characterized in that described to adjust described second according to preset second adjustment standard
The sideslip factor, including：
The rate of temperature fall of bringing-up section in the vertical annealing furnace is adjusted to 2 DEG C/min according to the preset second adjustment standard
~4.5 DEG C/min.
7. a kind of device preventing strip sideslip in vertical annealing furnace, which is characterized in that described device includes：
Acquiring unit determines snakelike race for obtaining sideslip data of the strip in vertical annealing furnace according to the sideslip data
The second sideslip factor of the inclined first sideslip factor and moment sideslip；The first sideslip factor includes：Add in vertical annealing furnace
The outlet temperature and stove area speed of hot arc, the second sideslip factor include：The cooling speed of bringing-up section in the vertical annealing furnace
Rate；
First determination unit, for determining sideslip risks and assumptions according to the width of the strip, the length of furnace roller platform
Second determination unit, for according to the friction coefficient between the density of the strip, the strip and furnace roller, the strip
Acceleration of gravity, the taper angle of the furnace roller and the straight segment length of the furnace roller platform determine the strip maximum it is quiet
Frictional force f；
Third determination unit, for the taper angle according to the unit tension of the strip, the width of the strip, the furnace roller
The cornerite of degree, the straight segment length of the furnace roller and the strip determines the centering force σ of the stripcenter；
Judging unit, for when the determining sideslip risks and assumptionsWhen, judge the σcenterWhether the f is more than；
The first adjustment unit, in the σcenterLess than the f, when determining that the strip is snakelike sideslip, then according to default
The first adjustment standard adjust the first sideslip factor；
Second adjustment unit, in the σcenterNot less than the f, when determining that the strip is moment sideslip, then according to pre-
If second adjustment standard adjust the second sideslip factor.
8. device as claimed in claim 7, which is characterized in that first determination unit is specifically used for：
According to formulaDetermine the sideslip risks and assumptionsWherein, the W is the width of the strip, institute
State TLhotFor the length of the furnace roller platform, a is width compensation coefficient, and the value range of a is 50~80.
9. device as claimed in claim 7, which is characterized in that second determination unit is specifically used for：
According to formula f=ρstripSin β (W-SL) μ g determine the maximum static friction force f of the strip；Wherein, the ρstripFor institute
State the density of strip, the μ is that friction coefficient between the strip and the furnace roller, the gravity that the g is the strip add
Speed, the W are the width of the strip；The SL is the straight segment length of the furnace roller, and the β is the taper of the furnace roller
Angle.
10. device as claimed in claim 7, which is characterized in that second determination unit is specifically used for：
According to formulaDetermine the centering force σ of the stripcenter；Wherein,
The σstripFor the unit tension of the strip, the β is the taper angle of the furnace roller, and the θ is the cornerite of the strip,
The SL is the straight segment length of the furnace roller, and the W is the width of the strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402277.5A CN108676995B (en) | 2018-04-28 | 2018-04-28 | Method and device for preventing deviation of strip steel in vertical annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402277.5A CN108676995B (en) | 2018-04-28 | 2018-04-28 | Method and device for preventing deviation of strip steel in vertical annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108676995A true CN108676995A (en) | 2018-10-19 |
| CN108676995B CN108676995B (en) | 2020-02-21 |
Family
ID=63802695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810402277.5A Active CN108676995B (en) | 2018-04-28 | 2018-04-28 | Method and device for preventing deviation of strip steel in vertical annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108676995B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699362A (en) * | 2020-06-08 | 2021-11-26 | 中冶赛迪技术研究中心有限公司 | Parking tension eliminating method for large-scale strip steel continuous annealing furnace |
| CN116555532A (en) * | 2023-03-31 | 2023-08-08 | 宝镁特(上海)智能工程有限公司 | High-precision annealing method for thin silicon steel material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662927A (en) * | 1979-10-30 | 1981-05-29 | Nippon Steel Corp | Continuous heat treatment furnace of strip |
| CN103468922A (en) * | 2012-06-06 | 2013-12-25 | 上海梅山钢铁股份有限公司 | Control method for preventing thermal buckling of annealing furnace strip steel |
| CN104484560A (en) * | 2014-12-08 | 2015-04-01 | 燕山大学 | Strip steel deviation predicting method suitable for continuous annealing unit |
| CN105986116A (en) * | 2015-02-13 | 2016-10-05 | 鞍钢股份有限公司 | Method for controlling deviation of strip steel in continuous annealing furnace |
| CN106011450A (en) * | 2016-07-06 | 2016-10-12 | 燕山大学 | Tension optimization method with continuous annealing process taking stable travelling and quality control as targets |
| CN106055870A (en) * | 2016-05-20 | 2016-10-26 | 燕山大学 | Strip steel buckles forecast method suitable for continuous withdrawal unit |
| CN106269913A (en) * | 2015-05-28 | 2017-01-04 | 鞍钢股份有限公司 | Work roll shifting milling train prevents the method for strip running deviation |
-
2018
- 2018-04-28 CN CN201810402277.5A patent/CN108676995B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662927A (en) * | 1979-10-30 | 1981-05-29 | Nippon Steel Corp | Continuous heat treatment furnace of strip |
| CN103468922A (en) * | 2012-06-06 | 2013-12-25 | 上海梅山钢铁股份有限公司 | Control method for preventing thermal buckling of annealing furnace strip steel |
| CN104484560A (en) * | 2014-12-08 | 2015-04-01 | 燕山大学 | Strip steel deviation predicting method suitable for continuous annealing unit |
| CN105986116A (en) * | 2015-02-13 | 2016-10-05 | 鞍钢股份有限公司 | Method for controlling deviation of strip steel in continuous annealing furnace |
| CN106269913A (en) * | 2015-05-28 | 2017-01-04 | 鞍钢股份有限公司 | Work roll shifting milling train prevents the method for strip running deviation |
| CN106055870A (en) * | 2016-05-20 | 2016-10-26 | 燕山大学 | Strip steel buckles forecast method suitable for continuous withdrawal unit |
| CN106011450A (en) * | 2016-07-06 | 2016-10-12 | 燕山大学 | Tension optimization method with continuous annealing process taking stable travelling and quality control as targets |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113699362A (en) * | 2020-06-08 | 2021-11-26 | 中冶赛迪技术研究中心有限公司 | Parking tension eliminating method for large-scale strip steel continuous annealing furnace |
| CN113699362B (en) * | 2020-06-08 | 2022-09-30 | 中冶赛迪技术研究中心有限公司 | Parking tension eliminating method for large-scale strip steel continuous annealing furnace |
| CN116555532A (en) * | 2023-03-31 | 2023-08-08 | 宝镁特(上海)智能工程有限公司 | High-precision annealing method for thin silicon steel material |
| CN116555532B (en) * | 2023-03-31 | 2024-04-09 | 宝镁特(上海)智能工程有限公司 | High-precision annealing method for thin silicon steel material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108676995B (en) | 2020-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108676995A (en) | A kind of method and device preventing strip sideslip in vertical annealing furnace | |
| CN103544340B (en) | The establishing method of concentration of emulsion used in five Stands Cold Tandem Mill group strip in razor-thin rollings | |
| CN109022757B (en) | Dynamic sectional control method for annealing temperature of tinned product | |
| CN108728630B (en) | A kind of method and device avoiding strip running deviation | |
| WO2019080482A1 (en) | Apparatus and method for rapidly heating cold-rolled strip steel | |
| CN108359775B (en) | Method for setting tension of vertical continuous annealing furnace | |
| CN104152656B (en) | Control method for stable plate passing of cold-rolled strip steels based on thickness and width specifications | |
| CN103008361B (en) | Method for controlling bending of steel plate head | |
| CN101107085A (en) | Method for continuous casting and rolling with an increased casting rate and subsequent hot-rolling of relatively thin metal strands, especially steel strands, and continuous casting and rolling devic | |
| CN101463414B (en) | Production method for steel plate | |
| CN103773943A (en) | Method and device for continuous treatment of metal strip | |
| CN104289525B (en) | The cold rolling middle emulsion total flow set method of Stand Mill six-high cluster mill | |
| CN107971343A (en) | A kind of induction coil flat heated self-adapting intelligent adjusting method and device | |
| CN103230943B (en) | Improve the method for Warping Phenomenon in Plate Rolling Process | |
| CN106148652B (en) | A kind of method and device of flat cold-rolled sheet continuous annealing | |
| CN114833195A (en) | Cold rolling method for producing high-grade non-oriented silicon steel based on UCMW cold continuous rolling mill | |
| CN102941226B (en) | A kind of guaranteed cost special heavy plate cooling controlling and rolling controlling process | |
| CN104289531B (en) | Five Stands Cold Tandem Mill group emulsion temperature optimization establishing methods | |
| CN104550258A (en) | Quenching rolling micro-tension control system and method for steel rail | |
| CN106475417A (en) | A kind of device and method for being heated to roll | |
| CN110961464B (en) | Emulsion concentration optimization method of cold continuous rolling unit with vibration suppression as target | |
| CN111085548B (en) | Method for eliminating slip of tension roller set | |
| CN110369497B (en) | Cold rolling control method for high-silicon thin-strip non-oriented silicon steel | |
| CN109759296B (en) | Drying method and drying device for high-speed coating machine | |
| EP1647604B1 (en) | Process and device for improving the quality of steel or aluminium sheet during heat treatment in a continuous furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |