CN105834382B - A kind of molten steel feed system for being used to prepare amorphous band - Google Patents
A kind of molten steel feed system for being used to prepare amorphous band Download PDFInfo
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- CN105834382B CN105834382B CN201610284028.1A CN201610284028A CN105834382B CN 105834382 B CN105834382 B CN 105834382B CN 201610284028 A CN201610284028 A CN 201610284028A CN 105834382 B CN105834382 B CN 105834382B
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- molten steel
- tundish
- inclusion
- feed system
- heating
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Classifications
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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
- B22D11/10—Supplying or treating molten metal
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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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/117—Refining the metal by treating with gases
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
Abstract
The present invention provides a kind of molten steel feed system for being used to prepare amorphous band, including resistance heating tundish, for receiving molten steel and molten steel being purified；With sensing heating nozzle bag, the lower section of the resistance heating tundish is placed in, for receiving the molten steel of the resistance heating tundish injection and carrying out temperature adjustment to molten steel；Nozzle is provided with the lower section of the sensing heating nozzle bag, the nozzle is used to be poured into a mould molten steel.Molten steel feed system provided by the present invention for preparing amorphous band, can make the inclusion floating in molten steel and reach the purpose of cleaning molten steel；The temperature of molten steel can also be quickly adjusted simultaneously, reach the temperature prepared needed for amorphous band.
Description
Technical field
The invention belongs to amorphous band manufacturing technology field, specifically, is used to prepare amorphous ribbon the present invention relates to one kind
The molten steel feed system of material.
Background technology
At this stage, the method that the preparation of amorphous alloy strips uses single roller rapid quenching more.The system of single-roller rapid quenching with quenching mainly by
Formed with lower part：Smelting furnace, tundish, stopper, nozzle bag, chill roll, measuring thickness device and grabbing device.Foundry alloy is being smelted
Molten alloy is formed in stove after the completion of melting.Molten alloy is injected into tundish by smelting furnace, by removing in tundish
After the technical process such as slag and temperature adjustment, by pouring in steel mouth injection nozzle bag below tundish, and pass through the spray below nozzle bag
Mouth is poured on chill roll.Molten alloy forms the amorphous band that thickness is tens microns after quickly cooling down, rolled up through grabbing device
After taking, whole technological process is completed.Measuring thickness device can measure the thickness of amorphous band in real time.
Because the thickness of the amorphous band of preparation only has tens microns, the minor variations of quality of molten steel can all directly affect non-
The quality of crystal zone material.Therefore it is to prepare high quality amorphous ribbon to molten steel temperature and the precise controlling of quality in whole technological process
One of key link of material.And it is exactly tundish and nozzle bag entirely to make with the key link contacted in system with molten steel, both
The molten steel feed system of amorphous band preparation is collectively constituted.The main function of this system has at 2 points.One is make in molten steel
Inclusion floating and reach the purpose of cleaning molten steel；The second is quickly adjusting the temperature of molten steel, reach and prepare amorphous ribbon
Temperature needed for material.
Divided by mode of heating, tundish can be divided into sensing heating tundish and resistance heating tundish.Wherein sensing adds
The function of hot tundish adjustment molten steel temperature is stronger, and due to the presence of intermediate frequency stirring action, although being advantageous to member inside molten steel
Element is uniformly distributed, but destroys the standing effect of tundish, is unfavorable for the floating of field trash and precipitation in molten steel, is unfavorable for
The purification of molten steel.And resistance heating tundish is advantageously implemented the floating of field trash in molten steel after BOTTOM ARGON BLOWING technology is combined
And precipitation, be advantageous to the purification of molten steel.And because the heating efficiency of resistance heating is limited, it would become hard to using resistance heating tundish
The fast regulating temperature of molten steel is realized, influences production efficiency and rhythm of production.
Nozzle bag can also be divided into resistance heating nozzle bag and sensing heating nozzle bag.The advantages of sensing heating nozzle bag is tool
There is very strong temperature adjustment ability, but structure is relative complex.And resistance heating nozzle bag is limited to the thermoregulatory effect of molten steel, to ensure to make
With the molten steel temperature needed for technique, it is necessary to the degree of superheat of molten steel in tundish is improved, and too high molten steel temperature will cause steel
The scaling loss of the element such as Si, B inside liquid, influence the ultimate constituent of molten steel, and then the performance of amorphous band.
The molten steel feed system of different type tundish and nozzle bag composition can cause weight to final result of the system with process
Big to influence, following table lists their different combinations and its advantage and disadvantage, and (i.e. multi-form tundish and nozzle bag form
The function contrast of molten steel feed system)：
| Combine sequence number | Tundish | Nozzle bag | Can cleaning molten steel | Can quick regulation molten steel temperature |
| 1 | Sensing heating | Resistance heating | It is no | Energy |
| 2 | Resistance heating | Resistance heating | Energy | It is no |
| 3 | Sensing heating | Sensing heating | It is no | Energy |
, it is apparent that although first two combines formed molten steel feed system in current actual production from upper table
In be widely used, but both systems can not all fully meet amorphous band continuous production will to the function of molten steel feed system
Ask.Combination three is applied not to production field there is also open defect.
The content of the invention
It is existing at least to solve it is an object of the invention to provide a kind of molten steel feed system for being used to prepare amorphous band
The technical problem of cleaning molten steel existing for technology or the single effect of quick regulation molten steel temperature, while can solve the problem that prior art
It is existing to realize amorphous band quantity-produced technical problem.
In order to solve the above problems, the present invention provides a kind of molten steel feed system for being used to prepare amorphous band, its technology
Scheme is as follows：
A kind of molten steel feed system for being used to prepare amorphous band, including resistance heating tundish, for receiving molten steel simultaneously
Molten steel is purified；With sensing heating nozzle bag, the lower section of the resistance heating tundish is placed in, for receiving the resistance
Heat the molten steel of tundish injection and temperature adjustment is carried out to molten steel；Nozzle is provided with the lower section of the sensing heating nozzle bag,
The nozzle is used to be poured into a mould molten steel.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：Among the resistance heating
Include tundish inclusion, the upper end of the tundish inclusion is set for opening, and water is provided with the lower end of the tundish inclusion
Mouthful, the tundish inclusion is used to accommodate molten steel；Clad, installed in the aperture position of the tundish inclusion；And stopper, it is described
The lower end of stopper is contradicted with the mouth of a river and contacted, and flow control is realized in the stopper and the cooperation at the mouth of a river.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The tundish inclusion is
Trapezoidal pack arrangement wide at the top and narrow at the bottom.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The tundish inclusion bag
Working lining is included, for accommodating molten steel；And heat-insulation layer, the heat-insulation layer wrap up the working lining, the heat-insulation layer is used for institute
Working lining is stated to be incubated.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：In the bottom of the clad
Provided with heating element heater.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The heating element heater is straight
Type Elema.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：Among the resistance heating
Bag also includes argon-blowing device, and the argon-blowing device is arranged on the bottom of the tundish inclusion, for making the field trash in molten steel
Floating and the homogenization for keeping molten steel temperature.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The sensing heating nozzle
Include nozzle bag inclusion, for providing support；Induction coil, it is arranged on the inside of the nozzle bag inclusion；And zone of heating, tightly
The inner side of the induction coil is attached to, for accommodating molten steel and heating molten steel.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The zone of heating is resistance to height
Warm conductive material is made.
The molten steel feed system described above for being used to prepare amorphous band, more preferably：The nozzle bag inclusion
Inside is provided with water-cooling structure, and for cooling to the nozzle bag inclusion, water inlet is set on the top of the water-cooling structure,
Delivery port is set in the bottom of the water-cooling structure, for water filling and draining in the water-cooling structure.
Analysis understands that compared with prior art, the advantages of the present invention are：
First, provided by the present invention for preparing the molten steel feed system of amorphous band, can make on the field trash in molten steel
Float and reach the purpose of cleaning molten steel；The temperature of molten steel can also be quickly adjusted simultaneously, reached and prepared needed for amorphous band
Temperature.
2nd, the stopper of resistance heating tundish of the invention and the cooperation at the mouth of a river, it is possible to achieve flow control acts on.
3rd, tundish inclusion of the invention is divided into working lining and heat-insulation layer, it may be possible to quickly molten steel is carried out heating and
Insulation.
4th, the heating element heater that the present invention is set, disclosure satisfy that the demand of resistance heating.
5th, the argon-blowing device that the present invention is set, it can quickly realize the inclusion floating of molten steel and make molten steel temperature uniform
Change.
6th, the setting of sensing heating nozzle bag of the present invention, it is possible to achieve the temperature control of molten steel.
Brief description of the drawings
Fig. 1 is the structural representation for being used to prepare the molten steel feed system of amorphous band of the preferred embodiment of the present invention.
Fig. 2 is the structural representation of the resistance heating tundish of the preferred embodiment of the present invention.
Fig. 3 is the structural representation of the sensing heating nozzle bag of the preferred embodiment of the present invention.
In figure：1- resistance heating tundish；11- tundish inclusions；111- working linings；112- heat-insulation layers；12- clads；13-
The mouth of a river；14- stoppers；15- heating element heaters；16- argon-blowing devices；17- connects steel funnel；2- sensing heating nozzle bags；21- nozzles；22-
Induction coil；23- zones of heating；24- nozzle bag inclusions.
Embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in figure 1, the molten steel feed system for being used to prepare amorphous band of the preferred embodiment of the present invention mainly includes electricity
Resistance heating tundish 1, for receiving molten steel and being purified to molten steel；With sensing heating nozzle bag 2, it is placed among resistance heating
The lower section of bag 1, for receiving the molten steel of the injection of resistance heating tundish 1 and carrying out temperature adjustment to molten steel；Sprayed in sensing heating
The lower section of mouth bag 2 is provided with nozzle 21, and nozzle 21 is used to molten steel being poured on chill roll to form continuous amorphous band.
Sum it up, provided by the present invention for prepare the molten steel feed system of amorphous band by with calm function (i.e.
Cleaning molten steel) resistance heating tundish 1 and formed with the sensing heating nozzle bag 2 of fast regulating temperature function, can expire simultaneously
Two functional requirements of the sufficient amorphous band production field to molten steel feed system.
For the ease of the work of resistance heating tundish 1, as shown in Figure 1 and Figure 2, resistance heating tundish 1 of the invention wraps
Tundish inclusion 11 is included, the upper end of tundish inclusion 11 is set for opening, and the mouth of a river 13 is provided with the lower end of tundish inclusion 11, in
Between bag inclusion 11 be used for accommodate molten steel；Clad 12, installed in the aperture position of tundish inclusion 1；With stopper 14, under stopper 14
End is contradicted with the mouth of a river 13 and contacted, and when needing to inject molten steel to sensing heating nozzle bag 2, stopper 14 is lifted, and the mouth of a river 13 is opened,
Start to inject molten steel；When that need not inject molten steel to sensing heating nozzle bag 2, the mouth of a river 13 is closed in the lower end of stopper 14.For
Convenience is controlled to stopper 14 and then controls the size of the opening degree at the mouth of a river 13, as shown in Figure 1 and Figure 2, is preferably, is wrapping
Stopper via is provided with lid 12, the top of stopper 14 passes through stopper via.Now by controlling the top of stopper 14 just to control
The size of the opening degree at the mouth of a river 13, the present invention realize that flow control acts on by the cooperation of the mouth of a river 13 and stopper 14.
In the present invention, the purification control to molten steel for convenience, as shown in Figure 1 and Figure 2, tundish inclusion of the invention
11 be trapezoidal pack arrangement wide at the top and narrow at the bottom.Preferably, tundish inclusion 11 is built by laying bricks or stones by insulating refractory forms.Further preferably
For tundish inclusion 11 includes working lining 111, for accommodating molten steel；With heat-insulation layer 112, heat-insulation layer 112 wraps working lining 111
Wrap up in, heat-insulation layer 112 is used to be incubated working lining 111.In order to consider the resistance to material performance indications problem of tundish inclusion 11, this
The working lining 111 of invention is made for silica brick, and preferably quartz material is made；Heat-insulation layer 112 is that low heat conduction is high-strength absolutely
Hot brick is made.The performance indications of working lining 111 and heat-insulation layer 112 are illustrated in following table：
| Present position | Working lining | Heat-insulation layer |
| Resistance to material type selecting | Silica brick | The low high-strength insulation brick of heat conduction |
| Chemical composition | SiO2>=99% | Al2O3>=72% |
| Density (g/cm3) | 1.85 | 1.0 |
| Compressive resistance (MPa) | 45 | 3.5 |
| Thermal conductivity factor (W/ (mK)) | 1.4(400℃) | 0.48(350℃) |
| Coefficient of thermal expansion (1000 DEG C) | 0.2% | 0.53% |
In the present invention, in order to tackle the acid molten steel feature of non-crystaline amorphous metal, the design of working lining 111 uses extraordinary silica brick,
Quartz material is the ideal material of working lining.Heat-insulation layer 112 should have some strength and possess low thermal conductivity factor, design
Use the low heat conduction insulation brick of high-strength light.
In order to meet the demand for heat of resistance heating tundish 1, as shown in Figure 1 and Figure 2, the present invention is in clad 12
Bottom is provided with heating element heater 15, and the present invention is heated by the way of clad heating to resistance heating tundish 1, that is to say, that
The clad 12 of the present invention is heated by the way of resistance heating.Preferably, heating element heater 15 is straight type Elema.Further
Preferably, heating element heater 15 is 18.The present invention can make general power reach more than 300kW using 18 straight type Elemas altogether, very well
The demand for heat for meeting resistance heating tundish 1.
In order to further the inclusion floating in resistance heating tundish 1 and molten steel temperature be homogenized, as shown in Figure 1, Figure 2
Shown, present invention additionally comprises argon-blowing device 16, argon-blowing device 16 is arranged on the bottom of tundish inclusion 11, for making in molten steel
Inclusion floating and the homogenization for keeping molten steel temperature.
For the ease of receiving molten steel, as shown in Figure 1 and Figure 2, resistance heating tundish of the invention also includes connecing steel funnel
17, steel funnel 17 is connect on clad 12.The steel funnel 17 that connects of the present invention uses immersion structure, connects the end of steel funnel 17
It is immersed under the liquid level of the inside molten steel of tundish inclusion 11.Preferably, the material for connecing steel funnel 17 is vitreous silica.
For the ease of the work of sensing heating nozzle bag 2, as shown in Figure 1, Figure 3, sensing heating nozzle bag 2 of the invention wraps
Nozzle bag inclusion 24 is included, for providing support；Induction coil 22, it is arranged on the inside of nozzle bag inclusion 24；With zone of heating 23, tightly
The inner side of induction coil 22 is attached to, for accommodating molten steel and heating molten steel.
For the ease of being heated to molten steel, as shown in Figure 1, Figure 3, zone of heating 23 of the invention makes for high temperature resistant conductive material
Form.Zone of heating 23 is heated and the calandria as nozzle bag inclusion 24 by being induced coil 22.In the present invention, nozzle bag
Inclusion 24 is that thermostable heat-conductive material is made, and it is heated rapidly with heated object.
In order to prevent nozzle bag inclusion 24 and bottom plate positioned at nozzle bag inclusion 24 from problem on deformation occur, such as Fig. 1, Fig. 3
Shown, the inside of nozzle bag inclusion 24 of the invention is provided with water-cooling structure, for cooling to nozzle bag inclusion 24, in water cooling
The top of structure sets water inlet, delivery port is set in the bottom of water-cooling structure, for water filling in water-cooling structure and draining.
In the present invention, the material that zone of heating 23 uses is preferably graphitic carbonaceous silicon composite, and the material has fine
Magnetic conductivity, more than 1400 DEG C can be heated rapidly to by high frequency electric source, is used as heat carrier during empty bag preheating.Simultaneously should
Material has certain high-temperature oxidation resistance, solves the problems, such as the service life of zone of heating 23.
Carry out empty bag heat run using the molten steel feed system for being used to prepare amorphous band of the present invention and crossed steel to try
Test, the internal temperature of resistance heating tundish 1 described in empty bag heat run can reach 1420 DEG C, the sensing heating nozzle bag
2 nozzle bag inclusion 24 can be heated to more than 1400 DEG C in the case where meeting the structure safety of nozzle bag inclusion 24.Cross steel
In experiment, molten steel temperature in the sensing heating nozzle bag 2 continuously adjustabe in the range of 1200~1450 DEG C.
Analysis understands that compared with prior art, the advantages of the present invention are：
First, provided by the present invention for preparing the molten steel feed system of amorphous band, can make on the field trash in molten steel
Float and reach the purpose of cleaning molten steel；The temperature of molten steel can also be quickly adjusted simultaneously, reached and prepared needed for amorphous band
Temperature.
2nd, the stopper 14 of resistance heating tundish 1 of the invention and the cooperation at the mouth of a river 13, it is possible to achieve flow control acts on.
3rd, tundish inclusion 11 of the invention divides for working lining 111 and heat-insulation layer 112, it may be possible to quickly molten steel is entered
Row heating and insulation.
4th, the heating element heater 15 that the present invention is set, disclosure satisfy that the demand of resistance heating.
5th, the argon-blowing device 16 that the present invention is set, it can quickly realize the inclusion floating of molten steel and make molten steel temperature equal
Homogenize.
6th, the setting of sensing heating nozzle bag 2 of the present invention, it is possible to achieve the temperature control of molten steel.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, for each side, all it is merely illustrative, is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (7)
- A kind of 1. molten steel feed system for being used to prepare amorphous band, it is characterised in that including：Resistance heating tundish, for receiving molten steel and being purified to molten steel；WithSensing heating nozzle bag, the lower section of the resistance heating tundish is placed in, for receiving the resistance heating tundish note The molten steel that enters simultaneously carries out temperature adjustment to molten steel；Nozzle is provided with the lower section of the sensing heating nozzle bag, the nozzle is used for Molten steel is poured into a mould；The resistance heating tundish includes：Tundish inclusion, the upper end of the tundish inclusion are set for opening, and the mouth of a river is provided with the lower end of the tundish inclusion, The tundish inclusion is used to accommodate molten steel；Clad, installed in the aperture position of the tundish inclusion；WithStopper, the lower end of the stopper are contradicted with the mouth of a river and contacted, and flow control is realized in the stopper and the cooperation at the mouth of a river；The tundish inclusion includes：Working lining, for accommodating molten steel；WithHeat-insulation layer, the heat-insulation layer wrap up the working lining, and the heat-insulation layer is used to be incubated the working lining；The resistance heating tundish also includes：Argon-blowing device, the argon-blowing device is arranged on the bottom of the tundish inclusion, for making the inclusion floating in molten steel With the homogenization for keeping molten steel temperature.
- 2. the molten steel feed system according to claim 1 for being used to prepare amorphous band, it is characterised in that：The tundish inclusion is trapezoidal pack arrangement wide at the top and narrow at the bottom.
- 3. the molten steel feed system according to claim 1 for being used to prepare amorphous band, it is characterised in that：Heating element heater is provided with the bottom of the clad.
- 4. the molten steel feed system according to claim 3 for being used to prepare amorphous band, it is characterised in that：The heating element heater is straight type Elema.
- 5. the molten steel feed system according to claim 1 for being used to prepare amorphous band, it is characterised in that the sensing adds Hot nozzle bag includes：Nozzle bag inclusion, for providing support；Induction coil, it is arranged on the inside of the nozzle bag inclusion；WithZone of heating, the inner side of the induction coil is close to, for accommodating molten steel and heating molten steel.
- 6. the molten steel feed system according to claim 5 for being used to prepare amorphous band, it is characterised in that：The zone of heating is that high temperature resistant conductive material is made.
- 7. the molten steel feed system according to claim 5 for being used to prepare amorphous band, it is characterised in that：The inside of the nozzle bag inclusion is provided with water-cooling structure, for cooling to the nozzle bag inclusion, in the water cooling The top of structure sets water inlet, delivery port is set in the bottom of the water-cooling structure, for water filling in the water-cooling structure And draining.
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| CN105834382B true CN105834382B (en) | 2018-02-23 |
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| CN107790695A (en) * | 2016-09-06 | 2018-03-13 | 鞍钢股份有限公司 | A kind of Resistant heating formula tundish and its heating means |
| CN107052285B (en) * | 2017-03-23 | 2023-07-14 | 江苏驰睿新材料科技有限公司 | Combined type spouts package structure |
| CN106975733A (en) * | 2017-03-27 | 2017-07-25 | 江苏驰睿新材料科技有限公司 | One kind production amorphous band compound nozzle cup |
| CN108080591B (en) * | 2017-12-27 | 2024-01-30 | 河南中岳非晶新型材料股份有限公司 | Amorphous strip integrated spray belt package and package manufacturing method thereof |
| DE102022210325A1 (en) | 2022-09-29 | 2024-04-04 | Sms Group Gmbh | Method for preparing and producing a metallic product by continuous casting |
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