CN105014035B - A kind of simulation Mold initial solidification device - Google Patents
A kind of simulation Mold initial solidification device Download PDFInfo
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- CN105014035B CN105014035B CN201510495656.XA CN201510495656A CN105014035B CN 105014035 B CN105014035 B CN 105014035B CN 201510495656 A CN201510495656 A CN 201510495656A CN 105014035 B CN105014035 B CN 105014035B
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- Prior art keywords
- mold
- elevating lever
- object stage
- water
- molten steel
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- 238000007711 solidification Methods 0.000 title claims abstract description 32
- 230000008023 solidification Effects 0.000 title claims abstract description 32
- 238000004088 simulation Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000003028 elevating effect Effects 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000011819 refractory material Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 5
- 238000009749 continuous casting Methods 0.000 abstract description 15
- 230000007547 defect Effects 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Continuous Casting (AREA)
Abstract
A kind of simulation Mold initial solidification device, refractory masses are coated with hot plate inner surface, being molten steel chamber inside refractory masses, refractory material baffle plate being provided with molten steel bottom of chamber portion, the first elevating lever is fixedly connected with through hot plate bottom with refractory material baffle plate；Water mold is located at both hot plate top and is tightly connected by sealing ring, and the second elevating lever is vertically arranged in above water mold, and its lower end is connected with thermocouple.The present invention possesses the ability for directly obtaining initial solidification green shell in crystallizer, and by extruding molten steel as adverse movement simulating the solidification behavior of initial solidification green shell in crystallizer, stablizing for molten steel face can be ensured, its molten steel face situation is more coincide with actual field continuous casting steel liquid level situation；Pass through obtained continuous casting billet initial solidification green shell, then macroscopic view heat transfer solidification is combined with microstructure, and then more rational technological parameter can be designed, so as to reduce the generation of continuous casting billet quality defect.
Description
Technical field
The invention belongs to continuous casting of iron and steel simulating experiment technique field, more particularly to one kind simulation Mold are initial
Coagulation system.
Background technology
Continuous casting to raising finished product rate, improves slab quality, reducing energy consumption as a kind of important step in iron and steel production
Etc. significant.Crystallizer is the ingot mould of a water-cooled, causes that to possess heat transfer, cleaning molten steel, quality control etc. important
Effect, also referred to as " heart " of conticaster.
From tundish by invasive nozzle injection crystallizer, and cooled and solidified is formed with certain molten steel in the crystallizer
The strand of overall dimensions, strand are pulled continuously out from crystalliser feet, form continuous casting through aligning, cooling twice, cutting technique
Base.If initial solidification behavior is incorrect in crystallizer, strand can be caused various mass defects occur, such as subsurface inclusion, oscillation mark,
Segregation etc., and these defects can cause product quality to deteriorate, and can not only reduce recovery rate of iron, and to follow-up steel rolling process
Harmful effect will be produced, therefore, initial green shell solidification behavior in crystallizer is furtherd investigate, is to improve continuous casting billet quality
It is crucial.
As the production of continuous casting billet is a continuously process, meniscus area is difficult to obtain, therefore, at this stage for
The research of solidified structure mainly from the finished product continuous casting billet of steel mill is sampled and analyzes, when experiment interior is difficult to obtain specific
Initial green shell solidified structure under phase and process conditions, and the sample that steel mill takes back due to have passed through follow-up aligning, cooling twice,
The operation links such as pressure, the correlated characteristic of initial solidification behavior after acting on through complicated heat-power can be changed or cover, because
This, sample observation result cannot be corresponding with real initial solidification tissue.
In order to increase economic efficiency, and mitigate the pressure of experimental expensess and research worker, need badly and set up a set of simulation knot
The equipment of molten steel initial solidification in brilliant device, and by the equipment studying the initial solidification behavior of continuous casting billet.
The content of the invention
For the problem that prior art is present, the present invention provides a kind of simulation Mold initial solidification device, solution
Determine and be difficult to the technical barrier for obtaining initial solidification green shell at this stage, the initial solidification behavior to study continuous casting billet has provided reality
Means.
To achieve these goals, the present invention is adopted the following technical scheme that：A kind of simulation Mold initial solidification
Device, including pedestal, body of wall, the first object stage, the second object stage, the 3rd object stage, the 4th object stage, hot plate and water-cooled
Crystallizer, the body of wall are vertically arranged on pedestal, first object stage, the second object stage, the 3rd object stage, the 4th loading
Platform is from bottom to top sequentially arranged on body of wall；The hot plate is arranged on the second object stage, is covered in hot plate inner surface
Dismountable refractory masses are stamped, are molten steel chamber inside refractory masses, molten steel bottom of chamber portion is provided with refractory material baffle plate；
The first elevating lever is vertically arranged with below the hot plate, the first lifting motor is installed on first object stage,
The first elevating lever upper end is fixedly connected with through hot plate bottom with refractory material baffle plate, the first elevating lever lower end with first liter
Drop motor is connected, and the first elevating lever carries out elevating movement by the first lifting motor；The water mold is arranged on the 3rd
On object stage, vibrating motor is installed on the 3rd object stage, the water mold is connected with vibrating motor, and vibrating motor is defeated
Go out and vibrate and act on water mold；It is connected and sealed by sealing ring between the water mold and hot plate；
The water inlet of the water mold is connected with the water inlet system of outside, and the outlet of water mold goes out water system with outside
System is connected；The second elevating lever is vertically arranged with above the water mold, is provided with the 4th object stage
Two lifting motors；Thermocouple is connected with the second elevating lever lower end, the thermocouple is corresponding with hot plate furnace chamber；Institute
State the second elevating lever upper end to be connected with the second lifting motor, the second elevating lever carries out elevating movement by the second lifting motor；
First lifting motor, the second lifting motor, vibrating motor and thermocouple are by data wire and outside data acquisition system
System is connected.
The vibration amplitude scope of the water mold is in the thickness range of sealing ring.
, between 1～20mm, frequency scope of shaking is at 10～600 beats/min for the vibration amplitude scope of the water mold
Clock.
The barrel tilt adjustable of the water mold.
First elevating lever, the rising or falling speed scope of the second elevating lever are in 1～4.5m/min.
The barrel shape of the water mold, the molten steel chamber of refractory masses 9 be cylindrically shaped or square column type.
Beneficial effects of the present invention：
The present invention possesses the ability for directly obtaining initial solidification green shell in crystallizer, and makees reversely to transport by extruding molten steel
The solidification behavior for moving to simulate initial solidification green shell in crystallizer, it is ensured that molten steel face is stablized, its molten steel face situation and reality
Live continuous casting steel liquid level situation is more coincide.The hot biography condition of covering slag in crystallizer can be studied to strand matter by the present invention
The impact of amount, passes through obtained continuous casting billet initial solidification green shell, it is possible to use existing experimental technique observes its interior microscopic group
Structure is knitted, is contrasted with the heterogeneous microstructure of computer simulation, macroscopic view heat transfer solidification is combined with microstructure, Jin Erke
To design more rational technological parameter, so as to reduce the generation of continuous casting billet quality defect.
Description of the drawings
Fig. 1 is a kind of simulation Mold initial solidification apparatus structure schematic diagram of the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is B-B sectional views in Fig. 1；
In figure, 1-pedestal, 2-body of wall, the 3-the first object stage, the 4-the second object stage, the 5-the three object stage, 6-the
Four object stages, 7-hot plate, 8-water mold, 9-refractory masses, 10-refractory material baffle plate, 11-the first liter
Drop bar, the 12-the first lifting motor, 13-vibrating motor, 14-water inlet system, 15-outlet system, the 16-the second elevating lever,
17-the second lifting motor, 18-thermocouple, 19-data collecting system, 20-sealing ring, 21-molten steel, 22-covering slag.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, 3, a kind of simulation Mold initial solidification device, including pedestal 1, body of wall 2, first load
Thing platform 3, the second object stage 4, the 3rd object stage 5, the 4th object stage 6, hot plate 7 and water mold 8, the body of wall 2 are erected
Directly be arranged on pedestal 1, first object stage 3, the second object stage 4, the 3rd object stage 5, the 4th object stage 6 from bottom to top according to
It is secondary on body of wall 2；The hot plate 7 is arranged on the second object stage 4, is coated with 7 inner surface of hot plate removable
The refractory masses 9 for unloading, are molten steel chamber inside refractory masses 9, molten steel bottom of chamber portion are provided with refractory material baffle plate 10；Institute
State and below hot plate 7, be vertically arranged with the first elevating lever 11, first lifting motor is installed on first object stage 3
12,11 upper end of the first elevating lever is fixedly connected with through 7 bottom of hot plate with refractory material baffle plate 10, under the first elevating lever 11
End is connected with the first lifting motor 12, and the first elevating lever 11 carries out elevating movement by the first lifting motor 12；The water-cooled
Crystallizer 8 is arranged on the 3rd object stage 5, is provided with vibrating motor 13 on the 3rd object stage 5, the water mold 8 with
Vibrating motor 13 is connected, and the output of vibrating motor 13 is vibrated and acts on water mold 8；The water mold 8 and heating electricity
It is connected and sealed by sealing ring 20 between stove 7；The water inlet of the water mold 8 is connected with the water inlet system 14 of outside
Logical, the outlet of water mold 8 is connected with the outlet system 15 of outside；It is vertically arranged above the water mold 8
There is the second elevating lever 16, second lifting motor 17 is installed on the 4th object stage 6；In 16 lower end of the second elevating lever
Thermocouple 18 is connected with, the thermocouple 18 is corresponding with 7 furnace chamber of hot plate；Second elevating lever, 16 upper end with second liter
Drop motor 17 is connected, and the second elevating lever 16 carries out elevating movement by the second lifting motor 17；First lifting motor 12,
Second lifting motor 17, vibrating motor 13 and thermocouple 18 are connected with the data collecting system 19 of outside by data wire.
The vibration amplitude scope of the water mold 8 is in the thickness range of sealing ring 20.
, between 1～20mm, frequency scope of shaking is at 10～600 beats/min for the vibration amplitude scope of the water mold 8
Clock.
The barrel tilt adjustable of the water mold 8.
First elevating lever 11, the rising or falling speed scope of the second elevating lever 16 are in 1～4.5m/min.
The barrel shape of the water mold 8, the molten steel chamber of refractory masses 9 be cylindrically shaped or square column type, from
And round billet or the initial green shell of square billet can be obtained.
The first use process of the present invention is illustrated below in conjunction with the accompanying drawings：
First the steel grade raw material of deployed composition is sent in hot plate 7, is started hot plate 7, is made steel grade raw material exist
Molten steel 21 is fused in molten steel chamber inside refractory masses 9, then powdery covering slag 22 is added in molten steel 21, it is to be protected
After slag 22 is also completely melt, the second elevating lever 16 is controlled by the second lifting motor 17 and is declined, until thermocouple 18 stretches into molten steel
In 21, the temperature of molten steel 21 is measured by thermocouple 18, after the temperature of molten steel 21 reaches design requirement, then the second lifting is controlled
Bar 16 rises, and makes thermocouple 18 depart from molten steel 21, and the temperature data of molten steel 21 is recorded by data collecting system 19.
Hot plate 7 is closed, water mold 8 is connected with water inlet system 14, outlet system 15, water mold is made
Recirculated water is connected in 8, while Vibration on Start-up motor 13, by the output vibration feedwater cooling crystallizer 8 of vibrating motor 13, and controls
The amplitude of water mold 8 and the frequency that shakes, now start the first lifting motor 12, are lifted by the control of the first lifting motor 12 first
Bar 11 rises, and drives refractory material baffle plate 10 to move up in 11 uphill process of the first elevating lever, and translational speed control exists
1.5m/min。
When refractory material baffle plate 10 moves upward to 8 bottom of water mold, the first lifting motor 12 is now closed, the
One elevating lever 11 stops rising, and vibrating motor 13 continues to output vibration feedwater cooling crystallizer 8, until molten steel 21 solidifies completely.When
After the green shell that molten steel 21 after solidification is formed is cooled down completely, then by 8 lifting certain altitude of water mold, the is then restarted
One lifting motor 12, control the first elevating lever 11 continue to rise, and until refractory material baffle plate 10 is higher than sealing ring 20, now close
First lifting motor 12, the first elevating lever 11 stop rising.Finally will be the first elevating lever 11 connected with refractory material baffle plate 10
Place takes apart, and the initial green shell of continuous casting and refractory material baffle plate 10 is now just obtained.
Scheme in embodiment being not used to limits the scope of patent protection of the present invention, it is all without departing from carried out by the present invention etc.
Effect is implemented or is changed, and is both contained in the scope of the claims of this case.
Claims (6)
- It is 1. a kind of to simulate Mold initial solidification device, it is characterised in that：Including pedestal, body of wall, the first object stage, Two object stages, the 3rd object stage, the 4th object stage, hot plate and water mold, the body of wall are vertically arranged on pedestal, First object stage, the second object stage, the 3rd object stage, the 4th object stage are from bottom to top sequentially arranged on body of wall；It is described Hot plate is arranged on the second object stage, is coated with dismountable refractory masses, refractory material in hot plate inner surface It is molten steel chamber that layer is internal, and molten steel bottom of chamber portion is provided with refractory material baffle plate；Is vertically arranged with below the hot plate One elevating lever, is provided with the first lifting motor on first object stage, and the first elevating lever upper end passes through hot plate Bottom is fixedly connected with refractory material baffle plate, and the first elevating lever lower end is connected with the first lifting motor, and the first elevating lever is by the One lifting motor carries out elevating movement；The water mold is arranged on the 3rd object stage, is provided with the 3rd object stage Vibrating motor, the water mold are connected with vibrating motor, and vibrating motor output is vibrated and acts on water mold；It is described It is connected and sealed by sealing ring between water mold and hot plate；The water inlet of the water mold and outside Water inlet system is connected, and the outlet of water mold is connected with the outlet system of outside；Above the water mold The second elevating lever is vertically arranged with, the second lifting motor is installed on the 4th object stage；Under second elevating lever End is connected with thermocouple, and the thermocouple is corresponding with the molten steel chamber of hot plate；The second elevating lever upper end with second liter Drop motor is connected, and the second elevating lever carries out elevating movement by the second lifting motor；First lifting motor, the second lifting Motor, vibrating motor and thermocouple are connected with the data collecting system of outside by data wire.
- 2. one kind according to claim 1 simulates Mold initial solidification device, it is characterised in that：The water-cooled The vibration amplitude scope of crystallizer is in the thickness range of sealing ring.
- 3. one kind according to claim 1 simulates Mold initial solidification device, it is characterised in that：The water-cooled , between 1～20mm, frequency scope of shaking is at 10～600 beats/min for the vibration amplitude scope of crystallizer.
- 4. one kind according to claim 1 simulates Mold initial solidification device, it is characterised in that：The water-cooled The barrel tilt adjustable of crystallizer.
- 5. one kind according to claim 1 simulates Mold initial solidification device, it is characterised in that：Described first Elevating lever, the rising or falling speed scope of the second elevating lever are in 1～4.5m/min.
- 6. one kind according to claim 1 simulates Mold initial solidification device, it is characterised in that：The water-cooled The barrel shape of crystallizer, the molten steel chamber of refractory masses be cylindrically shaped or square column type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495656.XA CN105014035B (en) | 2015-08-12 | 2015-08-12 | A kind of simulation Mold initial solidification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495656.XA CN105014035B (en) | 2015-08-12 | 2015-08-12 | A kind of simulation Mold initial solidification device |
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| Publication Number | Publication Date |
|---|---|
| CN105014035A CN105014035A (en) | 2015-11-04 |
| CN105014035B true CN105014035B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495656.XA Expired - Fee Related CN105014035B (en) | 2015-08-12 | 2015-08-12 | A kind of simulation Mold initial solidification device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370695B (en) * | 2016-11-03 | 2023-12-12 | 华北理工大学 | Device and method for measuring thermal resistance of continuous casting mold flux film |
| CN107020358B (en) * | 2017-06-13 | 2022-07-01 | 北京科技大学 | Device for simulating solidification structure and unsteady state heat flow of casting blank surface layer in crystallizer |
| CN111531142B (en) * | 2020-06-18 | 2021-05-07 | 中南大学 | Device and method for simulating double-roller thin-strip continuous casting technological process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3121721B2 (en) * | 1993-04-28 | 2001-01-09 | 新日本製鐵株式会社 | Method and apparatus for solidifying simulation of metal material |
| KR101235613B1 (en) * | 2011-02-24 | 2013-02-21 | 현대제철 주식회사 | Simulating apparatus for solidified layer thickness using water model mold |
| CN102357650B (en) * | 2011-09-28 | 2013-04-17 | 中南大学 | Steel liquid solidification simulator in continuous casting crystallizer |
| CN104266899B (en) * | 2014-10-09 | 2016-09-28 | 中南大学 | In a kind of continuous cast mold, initial solidification checking stricture of vagina forms analog and method |
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| CN105014035A (en) | 2015-11-04 |
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