CN105195701A - Method and device for measuring molten steel flow field distribution during continuous casting steel ladle pouring - Google Patents
Method and device for measuring molten steel flow field distribution during continuous casting steel ladle pouring Download PDFInfo
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- CN105195701A CN105195701A CN201410283613.0A CN201410283613A CN105195701A CN 105195701 A CN105195701 A CN 105195701A CN 201410283613 A CN201410283613 A CN 201410283613A CN 105195701 A CN105195701 A CN 105195701A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
- B22D2/001—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the slag appearance in a molten metal stream
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Abstract
The invention provides a method for measuring molten steel flow field distribution during continuous casting steel ladle pouring. The method comprises the steps that 1, according to the characteristic of molten steel which is poured, the critical height H1 of the liquid level is calculated when a concave eddy just appears on the liquid level of the molten steel in the pouring process; 2, whether the liquid level enters an eddy forming area or not is judged according to the critical height H1 and the liquid level height h of the molten steel, and if yes, the step 3 is executed; 3, the flow field distribution of the molten steel is calculated according to the critical height H1 and the liquid level height h. The invention further provides a device for measuring molten steel flow field distribution during continuous casting steel ladle pouring. The method and device can measure the molten steel flow field distribution situation during continuous casting steel ladle pouring in real time, and are conductive to reducing residual steel produced after steel ladle pouring, improving the molten steel yield and effectively carrying out pouring optimization control.
Description
Technical field
The present invention relates to measuring method and the device of molten steel flow field distribution when Con casting ladle is poured into a mould.
Background technology
In continuous casting is produced, first molten steel flows into tundish by ladle, then by tundish, molten steel is assigned to each crystallizer, then through crystallizer solidification and crystallization and cast becomes strand.Molten steel flows into tundish process from ladle, and along with the carrying out of cast, the liquid steel level of ladle inside can decline gradually, can produce flowing simultaneously.In the middle and later periods of cast, molten steel can produce rotational flow in ladle, forms whirlpool above delivery port near, make to swim in the slag above molten steel by under the suction-operated of whirlpool volume, mixes molten steel and flows into tundish through delivery port, formation slag.Excessive slag not only can reduce the cleanliness factor of molten steel, affects slab quality.
Find through research, the nowed forming of steel ladle pouring molten steel in latter stage and Flow Field Distribution and slag have close relationship.In order to reduce steel ladle pouring terminate after residual steel, improve molten steel recovery rate, effectively carry out cast optimal control, the nowed forming of molten steel in ladle and Flow Field Distribution situation must be known, just can make the corresponding formation controlling to suppress and destroy whirlpool, avoid the generation of slag phenomenon.
At present, in continuous-casting steel pouring process, the means MOLTEN STEEL FLOW form and Flow Field Distribution in ladle not measured and relevant device, there is no Optimized-control Technique to suppress and destroy whirlpool thus reduce ladle to remain steel yet, all adopt manual observation or Lower proterozoic group equipment, after slag being detected, just directly close slide gate nozzle, terminate cast.
Summary of the invention
In order to the distribution situation of molten steel flow field in Con casting ladle casting process can be measured in real time, for reduce steel ladle pouring terminate after residual steel, improve molten steel recovery rate, effectively carry out cast optimal control foundation is provided, the invention provides the measuring method of molten steel flow field distribution when a kind of Con casting ladle is poured into a mould, comprise the steps: the characteristic of S1. according to the molten steel poured into a mould, calculate the critical altitude H of the described liquid level when recessed whirlpool just in time appears in the liquid level of molten steel described in casting process
1; S2. according to described critical altitude H
1judge whether described liquid level enters whirlpool forming region with the liquid level h of described molten steel, if so, then perform step S3; S3. according to described critical altitude H
1the described Flow Field Distribution of described molten steel is calculated with liquid level h.
Further, described Flow Field Distribution comprises the vortex sheet diameter D of the whirlpool of current time
vwith whirlpool height H
v.
Further, described step S2 also comprises: if not, then return step S1.
Preferably, in step sl, use following formula to calculate critical altitude H
1:
Wherein, K is the correction factor of critical altitude, D
efor the equivalent diameter of effective flow export of the slide gate nozzle of current time, ε is the eccentricity of delivery port, H
0for height constant, ρ is the density of molten steel described in current time, and μ is the viscosity of molten steel described in current time, and T is the temperature of molten steel described in current time, and a, b, c are respectively the correction factor of density, viscosity, temperature.
Preferably, described equivalent diameter D
eby following formulae discovery: D
e=3.87A/X, wherein, A is the area of described effective flow export, and X is the girth of described effective flow export; Described eccentricity epsilon is by following formulae discovery: ε=r/R, and wherein, r is the distance of described delivery port to ladle bottom center, and R is the radius of ladle bottom; Described density p is by following formulae discovery: ρ=ρ
0+ β (T
0-T), wherein, ρ
0for at predetermined temperature T
0the density of Shi Suoshu molten steel, β is the temperature compensation coefficient of density; Described viscosity, mu is by following formulae discovery: μ=μ
0+ α (T
0-T), wherein, μ
0for at predetermined temperature T
0the viscosity of Shi Suoshu molten steel, α is the temperature compensation coefficient of viscosity; Described temperature T is for measuring gained.
Preferably, in step s 2, by calculating described liquid level h in the shape of the weight of current time ladle, the net weight of ladle and ladle.
Preferably, in step s 2, by judging that whether described liquid level h is at H
1judge in the scope of ± Δ H whether described liquid level enters whirlpool forming region, wherein, Δ H is predetermined critical altitude regulated quantity.
Preferably, described vortex sheet diameter D
vby following formulae discovery:
Wherein, M is the correction factor of vortex sheet diameter, D
hfor the diameter of the cross section of the ladle with described liquid level h corresponding position, r is the distance of delivery port to ladle bottom center, and s is the slag content flowing through effective flow export at current time, s
0for the offset of slag content, Δ H is predetermined critical altitude regulated quantity; Described whirlpool height H
vby following formulae discovery:
wherein, M is the correction factor of whirlpool height.
Present invention also offers the measurement mechanism of molten steel flow field distribution when a kind of Con casting ladle is poured into a mould, comprise computation analysis module and be connected to described computation analysis module with lower module: for measuring the weight detecting module of the weight of ladle in casting process in real time, for measuring the slag detection module flowing through the slag content of effective flow export in real time, for measuring the Measuring opening module of slide gate nozzle aperture in real time, for measuring the temperature detecting module of liquid steel temperature in real time, for the Signal interface module from external reception Given information, wherein, described Signal interface module is configured to the steel grade information of the molten steel poured into a mould from external reception and the net weight of ladle and shape information, and send to described computation analysis module, described computation analysis module is configured to, according to the information received, calculate the critical altitude H of the described liquid level when recessed whirlpool just in time appears in the liquid level of molten steel described in casting process
1, according to described critical altitude H
1judge whether described liquid level enters whirlpool forming region with the liquid level h of described molten steel, if so, then according to described critical altitude H
1the described Flow Field Distribution of described molten steel is calculated with liquid level h.
Preferably, described weight detecting module is arranged on ladle turret, and described slag detection module is arranged on above slide gate nozzle, and described temperature detecting module to be arranged on continuous-casting steel pouring platform and to have high temperature measurement function.
The present invention, by measuring slide gate nozzle aperture in real time, in conjunction with parameters such as liquid steel temperature, viscosity, density, calculates the critical altitude of the molten steel whirlpool generation of pouring into a mould; Reach before and after critical altitude at liquid steel level, according to ladle shape and molten steel characteristic, and the slag amount utilizing slag detection module to detect carrys out further corrected Calculation model, finally draws molten steel flow field distribution situation, the i.e. shape size of whirlpool, for optimal control pouring molten steel provides favourable conditions.
Accompanying drawing explanation
The schematic flow sheet of the measuring method of molten steel flow field distribution when Fig. 1 is Con casting ladle of the present invention cast;
The schematic flow sheet preferred embodiment of the measuring method of molten steel flow field distribution when Fig. 2 is Con casting ladle of the present invention cast;
The schematic flow sheet preferred embodiment of the calculating critical altitude of the measuring method of molten steel flow field distribution when Fig. 3 is Con casting ladle of the present invention cast;
Fig. 4 is the schematic diagram occurring recessed whirlpool with the liquid steel level shown in the mode of the sectional view of ladle in casting process;
Fig. 5 is the schematic diagram occurring through whirlpool with the molten steel shown in the mode of the sectional view of ladle in casting process;
Fig. 6 is with the schematic diagram of the liquid level of the molten steel shown in the mode of the sectional view of ladle in casting process;
Fig. 7 is with the schematic diagram of the delivery port shown in the mode of the top view of ladle;
Fig. 8 is the schematic diagram of effective flow export of slide gate nozzle;
The schematic diagram of the measurement mechanism of molten steel flow field distribution when Fig. 9 is Con casting ladle of the present invention cast.
Description of reference numerals:
1: ladle 2: slide gate nozzle 3: tundish
4: delivery port 5: slide plate 6: effectively flow export
10: weight detecting module 20: slag detection module
30: Measuring opening module 40: temperature detecting module
50: Signal interface module 60: computation analysis module
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the measuring method of molten steel flow field distribution during Con casting ladle cast of the present invention and device are described in further detail, but not as a limitation of the invention.
As shown in Figure 1, be the flow chart of the measuring method of molten steel flow field distribution during Con casting ladle cast of the present invention.The method comprises: step S1, according to the characteristic of the molten steel poured into a mould, and the critical altitude H of liquid level when recessed whirlpool just in time appears in the liquid level calculating molten steel in casting process
1; Step S2, according to critical altitude H
1judge whether liquid level enters whirlpool forming region with the liquid level h of molten steel, if so, then perform step S3; Step S3, according to critical altitude H
1calculate the Flow Field Distribution of molten steel with liquid level h, comprise the vortex sheet diameter D of the whirlpool of current time
vwith whirlpool height H
v.
Preferably, as shown in Figure 2, also comprise in step s 2: if liquid level does not enter whirlpool forming region, then return step S1, continue to calculate critical altitude H in real time according to the change of the characteristic of molten steel
1.
Above-mentioned critical altitude H
1the height of liquid level when referring to that recessed whirlpool just in time appears in the liquid level of molten steel in casting process.In Con casting ladle casting process, liquid steel level can decline gradually, and the molten steel of surrounding can to delivery port center flow simultaneously.In cast in earlier stage, because liquid steel level is higher, the molten steel speed flowing to delivery port is very little, can not form the trend motion of fixed-direction.In the cast middle and later periods, molten steel amount in ladle is fewer, and liquid level is lower, and the molten steel speed flowing to delivery port constantly improves, the trend motion of fixed-direction can be formed, be the radial motion that surrounding points to delivery port at the beginning, can superpose a tangential velocity subsequently, tangential speed component is increasing simultaneously, thus the rotary motion developed into around center, the mouth of a river, due to the effect of centrifugal force, along with the quickening of rotary speed, above pivot and delivery port, form whirlpool.As shown in Figure 4, time whirlpool is just formed, one just on liquid level very little recessed whirlpool, now the height of liquid steel level is exactly critical altitude H
1, represent the beginning that whirlpool is formed.Whirlpool can become large gradually subsequently, and final formation runs through the through whirlpool of whole molten steel height, as shown in Figure 5.
Because slag is compared with molten steel, density is little, viscosity is large, and simultaneously by molten steel driven rotary, speed is lower than molten steel, and the centrifugal force of generation is little, can converge in whirlpool immediate vicinity, by under whirlpool suction-operated volume, mixes molten steel outflow, forms slag.From arrive critical altitude H
1before becoming to through volute, directly related with the shape size of whirlpool by the slag content under volume.And once after forming through whirlpool, under having large steel slag volume, slag content now and the shape size relation of whirlpool not quite, but are determined by thickness of slag layer in ladle.
Therefore, after the liquid level of molten steel enters whirlpool forming region, calculate the Flow Field Distribution of molten steel, i.e. the vortex sheet diameter D of whirlpool
vwith whirlpool height H
v, have vital effect to control slag.
The critical altitude that whirlpool occurs and the form of whirlpool relevant with several factors, topmost have these factors as follows: the composition of the aperture size of steel ladle sliding water gap, delivery port shape of through holes and position eccentricity, molten steel, viscosity, density and liquid steel temperature etc.According to the Changing Pattern of Con casting ladle casting process molten steel flow field, in conjunction with these influence factors, can analyze the form identifying whirlpool, the relation simultaneously in conjunction with slag content and whirlpool can be verified and corrected Calculation model further, ensures the accuracy measured molten steel flow field distribution situation.
In order to carry out above-mentioned measuring method, present invention also offers corresponding measurement mechanism.As shown in Figure 9, be the schematic diagram of the measurement mechanism of molten steel flow field distribution during Con casting ladle cast of the present invention.This device, comprise computation analysis module 60 and be connected to computation analysis module 60 with lower module: for measure in real time the weight of ladle in casting process weight detecting module 10, in real time measure flow through the slag content of effective flow export slag detection module 20, for measure in real time slide gate nozzle aperture Measuring opening module 30, for measure in real time liquid steel temperature temperature detecting module 40, for the Signal interface module 50 from external reception Given information.Signal interface module 50 is configured to the steel grade information of the molten steel poured into a mould from external reception and the net weight of ladle and shape information, and sends to computation analysis module 60.Computation analysis module 60 is configured to according to the information that receives, the critical altitude H of molten steel when recessed whirlpool just in time appears in the liquid level calculating molten steel in casting process
1, according to critical altitude H
1judge whether liquid level enters whirlpool forming region, if so, then according to critical altitude H with the liquid level h of molten steel
1the Flow Field Distribution of molten steel is calculated with liquid level h.
Preferably, weight detecting module 10 is arranged on ladle turret, and slag detection module 20 is arranged on above slide gate nozzle, and temperature detecting module 40 to be arranged on continuous-casting steel pouring platform and to have high temperature measurement function.
In step sl, critical altitude H is calculated
1preferred process be described below with reference to Fig. 3.
S11. computation analysis module 60 reads the steel grade code of current cast by Signal interface module 50; By the molten steel that the temperature probe of temperature detecting module 40 is deeply being poured into a mould, the current liquid steel temperature T measured is outputted to computation analysis module 60 by temperature detecting module 40; Measuring opening module 30 measures the aperture size of current slide gate nozzle, opening value is outputted to computation analysis module 60.
S12. the characteristic of molten steel is calculated.Can be known current just in density and the viscosity information of pour steel by steel grade code: at predetermined temperature T
0the density p of Shi Gangshui
0, density temperature compensation coefficient β, at predetermined temperature T
0the viscosity, mu of Shi Gangshui
0, viscosity temperature compensation coefficient α.According to the temperature variant rule of molten steel, the characteristic of liquid steel temperature T to molten steel according to recording in real time is needed to revise.According to the information of the liquid steel temperature T that above-mentioned molten steel information and temperature detecting module 40 record, viscosity, mu and density p by following formulae discovery current time molten steel:
ρ＝ρ
0+β(T
0-T)，
μ＝μ
0+α(T
0-T)。
S13. the characteristic of effective flow export of the slide gate nozzle of current time is calculated.
As shown in Figure 9, the slide gate nozzle 2 of ladle 1 is arranged on below the delivery port of ladle 1, is used for controlling delivery port size.As shown in Figure 6, delivery port 4 is diameters is the circular hole of d, is arranged at the bottom of ladle 1, and the diameter of ladle bottom is D.As shown in Figure 7, the distance of center circle of delivery port 4 is r from the center of circle of the bottom of ladle 1, and the radius of ladle bottom is R.As shown in Figure 8, slide gate nozzle 2 makes slide plate 5 slide by slide mechanism, thus controls the opening and closing of delivery port 4, to regulate the size of molten steel flow.In actual casting process, effective flow export 6 of slide gate nozzle 2 is generally the circle of part.Measured the aperture size (i.e. the percentage of aperture) of slide gate nozzle 2 by Measuring opening module 30 after, aperture size is outputted to computation analysis module 60.Computation analysis module 60 calculates area A and the girth X of current effective flow export 6, then according to the equivalent diameter D of the effective flow export of following formulae discovery according to aperture sizes values
e:
D
e＝3.87A/X。
In addition, due to the critical altitude H of whirlpool formation
1except relevant with the size of delivery port 4, also relevant with the position at delivery port 4 place.The position of the mouth of a river 4 bottom ladle 1 is indicated herein by the eccentricity epsilon of delivery port 4.The computing formula of eccentricity epsilon is as follows:
ε＝r/R。
S14., after obtaining the characteristic of liquid steel temperature T, the characteristic of molten steel, effectively flow export, computation analysis module 60 calculates the critical altitude H corresponding to current cast situation according to critical altitude computation model
1.Its computing formula is as follows:
Wherein, K is the correction factor of critical altitude, D
efor the equivalent diameter of effective flow export of the slide gate nozzle of current time, ε is the eccentricity of delivery port, H
0for height constant, ρ is the density of molten steel described in current time, and μ is the viscosity of molten steel described in current time, and T is the temperature of molten steel described in current time, and a, b, c are respectively the correction factor of density, viscosity, temperature.
In step s 2, according to critical altitude H
1to judge whether liquid level enters the process prescription of whirlpool forming region as follows with the liquid level h of molten steel.
The weight of the current ladle poured into a mould is measured by the weight detecting module 10 be arranged on ladle turret, and measurement result is sent to computation analysis module 60, computation analysis module 60 from the net weight of the ladle of external reception and shape information, calculates the liquid level h of the molten steel in current ladle according to Signal interface module 50.
Computation analysis module 60 is by judging that whether liquid level h is at H
1judge in the scope of ± Δ H whether liquid level enters whirlpool forming region, wherein, Δ H is predetermined critical altitude regulated quantity, is a constant.If liquid level enters whirlpool forming region, then start the Flow Field Distribution calculating molten steel; Otherwise computation analysis module 60 continues the critical altitude H implementing the molten steel calculating current cast
1.
In step s3, the process prescription calculating the Flow Field Distribution of molten steel is as follows.
Slag detection module 20 measures the current slag content (percentage) flowing through delivery port, measurement result is outputted to computation analysis module 60 simultaneously.After computation analysis module 60 obtains above-mentioned information data, calculate current Flow Field Distribution situation according to Flow Field Distribution forecast model, i.e. the vortex sheet diameter D of current whirlpool
vwith whirlpool height H
v.Vortex sheet diameter D
vwith whirlpool height H
vimplication as shown in Figure 5.
Whirlpool form and critical altitude H
1size, current liquid steel level place ladle section diameter relevant with slag content, its computing formula is as follows:
Wherein, M is the correction factor of vortex sheet diameter, D
hfor the diameter of the cross section of the ladle with liquid level h corresponding position, r is the distance of delivery port to ladle bottom center, and s is the slag content flowing through effective flow export at current time, s
0for the offset of slag content, Δ H is predetermined critical altitude regulated quantity;
Wherein, M is the correction factor of whirlpool height.
During actual on-line real-time measuremen, computation analysis module 60 can judge whether to terminate molten steel flow field distribution measuring flow process, meets, exits flow process, stop measuring process if measure termination condition; Otherwise, judge whether to change ladle, because the own wt of different ladle is different.After replacing ladle being detected, need the ladle after regaining replacing from weight values, after changing ladle, steel grade also may be different simultaneously, need to remeasure new steel grade information.
Thus, the Flow Field Distribution situation of current molten steel can be obtained according to method and apparatus of the present invention.Computation analysis module 60 repeats the real-time computational flow distribution of step S3, for optimal control pouring molten steel provides favourable conditions.
Above detailed description of the invention is only illustrative embodiments of the present invention, can not be used for limiting the present invention, and protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, these are revised or be equal to replacement and also should be considered as dropping in protection scope of the present invention.
Claims (10)
1. a measuring method for molten steel flow field distribution during Con casting ladle cast, comprises the steps:
S1. according to the characteristic of the molten steel poured into a mould, the critical altitude H of the described liquid level when recessed whirlpool just in time appears in the liquid level of molten steel described in casting process is calculated
1;
S2. according to described critical altitude H
1judge whether described liquid level enters whirlpool forming region with the liquid level h of described molten steel, if so, then perform step S3;
S3. according to described critical altitude H
1the described Flow Field Distribution of described molten steel is calculated with liquid level h.
2. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 1, it is characterized in that, described Flow Field Distribution comprises the vortex sheet diameter D of the whirlpool of current time
vwith whirlpool height H
v.
3. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 1, it is characterized in that, described step S2 also comprises: if not, then return step S1.
4. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 1, is characterized in that, in step sl, use following formula to calculate critical altitude H
1:
5. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 4, is characterized in that,
Described equivalent diameter D
eby following formulae discovery:
D
e=3.87A/X, wherein, A is the area of described effective flow export, and X is the girth of described effective flow export;
Described eccentricity epsilon is by following formulae discovery:
ε=r/R, wherein, r is the distance of described delivery port to ladle bottom center, and R is the radius of ladle bottom;
Described density p is by following formulae discovery:
ρ=ρ
0+ β (T
0-T), wherein, ρ
0for at predetermined temperature T
0the density of Shi Suoshu molten steel, β is the temperature compensation coefficient of density;
Described viscosity, mu is by following formulae discovery:
μ=μ
0+ α (T
0-T), wherein, μ
0for at predetermined temperature T
0the viscosity of Shi Suoshu molten steel, α is the temperature compensation coefficient of viscosity;
Described temperature T is for measuring gained.
6. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 1, is characterized in that, in step s 2, by calculating described liquid level h in the shape of the weight of current time ladle, the net weight of ladle and ladle.
7. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 1, is characterized in that, in step s 2, by judging that whether described liquid level h is at H
1judge in the scope of ± Δ H whether described liquid level enters whirlpool forming region, wherein, Δ H is predetermined critical altitude regulated quantity.
8. the measuring method of molten steel flow field distribution during Con casting ladle cast according to claim 2, is characterized in that,
Described vortex sheet diameter D
vby following formulae discovery:
Described whirlpool height H
vby following formulae discovery:
wherein, M is the correction factor of whirlpool height.
9. the measurement mechanism of molten steel flow field distribution during a Con casting ladle cast, comprise computation analysis module and be connected to described computation analysis module with lower module: for measure in real time the weight of ladle in casting process weight detecting module, in real time measure flow through the slag content of effective flow export slag detection module, for measure in real time slide gate nozzle aperture Measuring opening module, for measure in real time liquid steel temperature temperature detecting module, for the Signal interface module from external reception Given information, wherein
Described Signal interface module is configured to the steel grade information of the molten steel poured into a mould from external reception and the net weight of ladle and shape information, and sends to described computation analysis module;
Described computation analysis module is configured to, according to the information received, calculate the critical altitude H of the described liquid level when recessed whirlpool just in time appears in the liquid level of molten steel described in casting process
1, according to described critical altitude H
1judge whether described liquid level enters whirlpool forming region with the liquid level h of described molten steel, if so, then according to described critical altitude H
1the described Flow Field Distribution of described molten steel is calculated with liquid level h.
10. the measurement mechanism of molten steel flow field distribution during Con casting ladle cast according to claim 9, it is characterized in that, described weight detecting module is arranged on ladle turret, described slag detection module is arranged on above slide gate nozzle, and described temperature detecting module to be arranged on continuous-casting steel pouring platform and to have high temperature measurement function.
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| CN108775931A (en) * | 2018-04-13 | 2018-11-09 | 中南大学 | A kind of metering of high-temperature fusant discharge capacity and monitoring method |
| CN110102748A (en) * | 2019-05-06 | 2019-08-09 | 共享铸钢有限公司 | A method of improving steel-casting casting quality |
| CN112475248A (en) * | 2020-12-01 | 2021-03-12 | 内蒙古科技大学 | Method and device for predicting molten steel outlet temperature of continuous casting multi-flow tundish and terminal equipment |
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