CN105834382A - Molten steel feeding system used for preparing amorphous strips - Google Patents
Molten steel feeding system used for preparing amorphous strips Download PDFInfo
- Publication number
- CN105834382A CN105834382A CN201610284028.1A CN201610284028A CN105834382A CN 105834382 A CN105834382 A CN 105834382A CN 201610284028 A CN201610284028 A CN 201610284028A CN 105834382 A CN105834382 A CN 105834382A
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- Prior art keywords
- molten steel
- tundish
- inclusion
- feed system
- amorphous band
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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
-
- 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
Abstract
The invention provides a molten steel feeding system used for preparing amorphous strips. The molten steel feeding system comprises a resistance heating tundish and an induction heating nozzle bag, wherein the resistance heating tundish is used for receiving molten steel and purifying the molten steel; the induction heating nozzle bag is arranged below the resistance heating tundish, used for receiving the molten steel injected by the resistance heating tundish and used for conducting temperature regulating on the molten steel; and a nozzle is arranged below the induction heating nozzle bag and used for pouring of the molten steel. By means of the molten steel feeding system used for preparing the amorphous strips, inclusions in the molten steel can float up so as to achieve the aim of purifying the molten steel; and meanwhile, the temperature of the molten steel can be rapidly adjusted, and the temperature needed for preparing the amorphous strips is achieved.
Description
Technical field
The invention belongs to amorphous band manufacturing technology field, specifically, the present invention relates to a kind of for making
The molten steel feed system of standby amorphous band.
Background technology
Present stage, the preparation method using single roller rapid quenching of amorphous alloy strips more.Single-roller rapid quenching with quenching be
System is mainly formed by with lower part: smelting furnace, tundish, stopper, nozzle bag, chill roll, thickness measuring fill
Put and grabbing device.Foundry alloy forms molten alloy after melting completes in smelting furnace.Molten alloy passes through
Smelting furnace is injected in tundish, in tundish after slagging-off and the technical process such as homoiothermic, by
Between watering in steel mouth injection nozzle bag below bag, and be poured on chill roll by the nozzle below nozzle bag.
Molten alloy forms the amorphous band that thickness is tens microns after quickly cooling down, after grabbing device batches,
Complete whole technological process.Measuring thickness device can measure the thickness of amorphous band in real time.
Owing to the thickness of the amorphous band of preparation only has tens microns, the minor variations of quality of molten steel all can be straight
Connect the quality affecting amorphous band.To molten steel temperature and the precise controlling of quality in the most whole technological process,
It it is one of key link preparing high-quality amorphous band.And the master contacted with molten steel in whole band system processed
Wanting link is exactly tundish and nozzle bag, and both have collectively constituted molten steel feed system prepared by amorphous band.
The Main Function of this system has 2 points.The first makes the inclusion floating in molten steel reach cleaning molten steel
Purpose；It two is the temperature quickly adjusting molten steel so that it is reach to prepare the temperature needed for amorphous band.
Dividing by mode of heating, tundish can be divided into sensing heating tundish and resistance heating tundish.Its
The function that middle sensing heating tundish adjusts molten steel temperature is relatively strong, and due to the existence of intermediate frequency stirring action,
Although beneficially being uniformly distributed of molten steel inner element, but destroy the standing effect of tundish, unfavorable
In molten steel, the floating of field trash and precipitation, be unfavorable for the purification of molten steel.And resistance heating tundish is at knot
After having closed BOTTOM ARGON BLOWING technology, it is advantageously implemented floating and the precipitation of field trash in molten steel, beneficially molten steel
Purify.And owing to the heating efficiency of resistance heating is limited, make to be heated by resistive tundish and would become hard to realize steel
The fast regulating temperature of liquid, affects production efficiency and rhythm of production.
Nozzle bag also can be divided into resistance heated nozzle bag and sensing heated nozzle bag.Sensing heated nozzle bag
Advantage is to have the strongest homoiothermic ability, but structure is relative complex.And resistance heated nozzle bag is to molten steel
Thermoregulatory effect is limited, for ensureing the molten steel temperature needed for belt making process, it is necessary to improve molten steel in tundish
The degree of superheat, and too high molten steel temperature will cause the scaling loss of the elements such as molten steel internal Si, B, affect steel
The ultimate constituent of liquid, and then the performance of amorphous band.
The molten steel feed system of dissimilar tundish and nozzle bag composition can be to the final result of band process processed
Significant impact, following table is caused to list they different compound modes and pluses and minuses thereof (i.e. in multi-form
Between bag and nozzle bag composition molten steel feed system function contrast):
| Combination sequence number | Tundish | Nozzle bag | Can cleaning molten steel | Can quickly regulate molten steel temperature |
| 1 | Sensing heating | Resistance heats | No | Energy |
| 2 | Resistance heats | Resistance heats | Energy | No |
| 3 | Sensing heating | Sensing heating | No | Energy |
It is apparent that although first two combines the molten steel feed system constituted at present from upper table
Actual production is widely used, but both systems all can not fully meet amorphous band produce continuously right
The functional requirement of molten steel feed system.Combination three there is also open defect, is applied not to production field.
Summary of the invention
It is an object of the invention to provide a kind of molten steel feed system for preparing amorphous band, with at least
Solve the cleaning molten steel that prior art exists or the technical problem quickly regulating the single effect of molten steel temperature,
Can solve the problem that what prior art existed cannot realize amorphous band quantity-produced technical problem simultaneously.
In order to solve the problems referred to above, the present invention provides a kind of molten steel feed system for preparing amorphous band,
Its technical scheme is as follows:
A kind of molten steel feed system for preparing amorphous band, heats tundish including resistance, is used for connecing
Receive molten steel and molten steel is purified；With sensing heated nozzle bag, it is placed in described resistance heating tundish
Lower section, for receiving the molten steel of described resistance heating tundish injection and molten steel being carried out temperature regulation；?
The lower section of described sensing heated nozzle bag is provided with nozzle, and described nozzle is for pouring into a mould molten steel.
Molten steel feed system for preparing amorphous band described above, more preferably: described resistance
Heating tundish includes that tundish inclusion, the upper end of described tundish inclusion are that opening is arranged, in described
Between the lower end of bag inclusion be provided with the mouth of a river, described tundish inclusion is used for accommodating molten steel；Clad, is arranged on institute
State the aperture position of tundish inclusion；And stopper, the lower end of described stopper contacts with the conflict of the described mouth of a river,
Described stopper realizes flow control with coordinating of the described mouth of a river.
Molten steel feed system for preparing amorphous band described above, more preferably: described centre
Bag inclusion is trapezoidal pack arrangement wide at the top and narrow at the bottom.
Molten steel feed system for preparing amorphous band described above, more preferably: described centre
Bag inclusion includes working lining, is used for accommodating molten steel；And heat-insulation layer, described heat-insulation layer is by described working lining bag
Wrapping up in, described heat-insulation layer is for being incubated described working lining.
Molten steel feed system for preparing amorphous band described above, more preferably: at described bag
The bottom of lid is provided with heating element heater.
Molten steel feed system for preparing amorphous band described above, more preferably: described heating
Element is straight type siliconit.
Molten steel feed system for preparing amorphous band described above, more preferably: described resistance
Heating tundish also includes that argon-blowing device, described argon-blowing device are arranged on the bottom of described tundish inclusion,
For making the inclusion floating in molten steel and the homogenization of holding molten steel temperature.
Molten steel feed system for preparing amorphous band described above, more preferably: described sensing
Heated nozzle bag includes nozzle bag inclusion, is used for providing support；Induction coil, is arranged on described nozzle bag
The inside of inclusion；And zone of heating, it is close to the inner side of described induction coil, is used for accommodating molten steel and heating
Molten steel.
Molten steel feed system for preparing amorphous band described above, more preferably: described heating
Layer is made for high temperature resistant conductive material.
Molten steel feed system for preparing amorphous band described above, more preferably: described nozzle
The inside of bag inclusion is provided with water-cooling structure, for lowering the temperature, described nozzle bag inclusion in described water-cooled
The top of structure arranges water inlet, arranges outlet in the bottom of described water-cooling structure, for described water
Water filling and draining in air-cooled structure.
Analyze and understand, compared with prior art, advantages of the present invention and having the beneficial effects that:
One, the molten steel feed system for preparing amorphous band that the present invention provides, can make in molten steel
Inclusion floating and reach the purpose of cleaning molten steel；Can also quickly adjust the temperature of molten steel simultaneously so that it is
Reach to prepare the temperature needed for amorphous band.
Two, the resistance of the present invention heats stopper and the cooperation at the mouth of a river of tundish, it is possible to achieve flow control effect.
Three, the tundish inclusion of the present invention is divided into working lining and heat-insulation layer, it may be possible to quickly enter molten steel
Row heating and insulation.
Four, the heating element heater that the present invention is arranged, it is possible to meet the demand of resistance heating.
Five, the argon-blowing device that the present invention is arranged, can quickly realize the inclusion floating of molten steel and make molten steel
Equalizing temperature.
Six, the present invention senses the setting of heated nozzle bag, it is possible to achieve the temperature of molten steel controls.
Accompanying drawing explanation
Fig. 1 is that the structure of the molten steel feed system for preparing amorphous band of the preferred embodiment of the present invention is shown
It is intended to.
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 heated nozzle bag of the preferred embodiment of the present invention.
In figure: 1-resistance heating tundish；11-tundish inclusion；111-working lining；112-heat-insulation layer；
12-clad；The 13-mouth of a river；14-stopper；15-heating element heater；16-argon-blowing device；17-connects steel funnel；2-
Sensing heated nozzle bag；21-nozzle；22-induction coil；23-zone of heating；24-nozzle bag inclusion.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further details below in conjunction with the accompanying drawings.
As it is shown in figure 1, the molten steel feed system master for preparing amorphous band of the preferred embodiment of the present invention
Resistance to be included heating tundish 1, is used for receiving molten steel and purifying molten steel；Thermal jet is added with sensing
Mouth bag 2, is placed in the lower section of resistance heating tundish 1, for receiving what resistance heating tundish 1 injected
Molten steel also carries out temperature regulation to molten steel；It is provided with nozzle 21, nozzle in the lower section of sensing heated nozzle bag 2
21 for being poured on chill roll formation continuous print amorphous band by molten steel.
Sum it up, the present invention provide for preparing the molten steel feed system of amorphous band by having calmness
The resistance heating tundish 1 of function (i.e. cleaning molten steel) adds thermal jet with the sensing with fast regulating temperature function
Mouth bag 2 is constituted, it is possible to meet the amorphous band production field 2 function need to molten steel feed system simultaneously
Ask.
For the ease of the work of resistance heating tundish 1, as shown in Figure 1 and Figure 2, the resistance of the present invention
Heating tundish 1 include tundish inclusion 11, the upper end of tundish inclusion 11 be opening arrange, in
Between the lower end of bag inclusion 11 be provided with the mouth of a river 13, tundish inclusion 11 is used for accommodating molten steel；Clad 12, peace
It is contained in the aperture position of tundish inclusion 1；With stopper 14, conflict with the mouth of a river 13 and connect in the lower end of stopper 14
Touching, when needs inject molten steel to sensing heated nozzle bag 2, mentioned by stopper 14, the mouth of a river 13 is opened,
Start to inject molten steel；When need not inject molten steel to sensing heated nozzle bag 2, the lower end of stopper 14 will
The mouth of a river 13 is closed.Stopper 14 is controlled and then controls the size of opening degree at the mouth of a river 13 for convenience,
As shown in Figure 1 and Figure 2, being preferably, have stopper via on clad 12, the top of stopper 14 is worn
Cross stopper via.The size of the opening degree at the mouth of a river 13 just can be controlled now by the top controlling stopper 14,
The present invention realizes flow control effect by the cooperation at the mouth of a river 13 and stopper 14.
In the present invention, the purification to molten steel controls for convenience, as shown in Figure 1 and Figure 2, and the present invention
Tundish inclusion 11 be trapezoidal pack arrangement wide at the top and narrow at the bottom.Being preferably, tundish inclusion 11 is by thermal insulation
Refractory material laying forms.More preferably, tundish inclusion 11 includes working lining 111, is used for holding
Receive molten steel；With heat-insulation layer 112, working lining 111 is wrapped up by heat-insulation layer 112, and heat-insulation layer 112 is for right
Working lining 111 is incubated.In order to consider the resistance to material performance indications problem of tundish inclusion 11, the present invention
Working lining 111 be made for silica brick, be preferably quartz material be made；Heat-insulation layer 112 is low
The high-strength insulation brick of heat conduction is made.Following table illustrating, the performance of working lining 111 and heat-insulation layer 112 refers to
Mark:
| Present position | Working lining | Heat-insulation layer |
| Resistance to material type selecting | Silica brick | The high-strength insulation brick of low heat conduction |
| Chemical composition | SiO2>=99% | Al2O3>=72% |
| Density (g/cm3) | 1.85 | 1.0 |
| Compressive resistance (MPa) | 45 | 3.5 |
| Heat conductivity (W/ (m K)) | 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, working lining 111 design uses
Extraordinary silica brick, quartz material is the ideal material of working lining.Heat-insulation layer 112 should have some strength and
Possessing low heat conductivity, design uses high-strength light low heat conduction insulation brick.
In order to meet resistance heating tundish 1 demand for heat, as shown in Figure 1 and Figure 2, this
The bright bottom at clad 12 is provided with heating element heater 15, and resistance is added by the mode that the present invention uses clad to heat
Hot tundish 1 heats, say, that the clad 12 of the present invention is adopted the mode being heated by resistive and added
Heat.Being preferably, heating element heater 15 is straight type siliconit.More preferably, heating element heater 15 is 18
Individual.The present invention uses 18 straight type siliconits that general power can be made to reach more than 300kW altogether, well meets
The demand for heat of resistance heating tundish 1.
In order to further resistance being heated inclusion floating in tundish 1 and making molten steel temperature homogenization,
As shown in Figure 1 and Figure 2, present invention additionally comprises argon-blowing device 16, argon-blowing device 16 is arranged on tundish bag
The bottom of body 11, for making the inclusion floating in molten steel and the homogenization of holding molten steel temperature.
For the ease of receiving molten steel, as shown in Figure 1 and Figure 2, the resistance heating tundish of the present invention also wraps
Include and connect steel funnel 17, connect steel funnel 17 and be arranged on clad 12.The steel funnel 17 that connects of the present invention uses
Immersion structure, the end connecing steel funnel 17 is immersed in the liquid level being positioned at the internal molten steel of tundish inclusion 11
Under.Being preferably, the material connecing steel funnel 17 is vitreous silica.
For the ease of sensing the work of heated nozzle bag 2, as shown in Figure 1, Figure 3, the sensing of the present invention
Heated nozzle bag 2 includes nozzle bag inclusion 24, is used for providing support；Induction coil 22, is arranged on nozzle
The inside of bag inclusion 24；With zone of heating 23, it is close to the inner side of induction coil 22, is used for accommodating molten steel
With heating molten steel.
For the ease of heating molten steel, as shown in Figure 1, Figure 3, the zone of heating 23 of the present invention is high temperature resistant
Conductive material is made.Zone of heating 23 is heated by sensed coil 22 and becomes nozzle bag inclusion 24
Calandria.In the present invention, nozzle bag inclusion 24 is made for thermostable heat-conductive material so that it is can
Heat rapidly with heated object.
In order to prevent nozzle bag inclusion 24 and be positioned at the base plate of nozzle bag inclusion 24 problem on deformation occurs,
As shown in Figure 1, Figure 3, the inside of the nozzle bag inclusion 24 of the present invention is provided with water-cooling structure, for spray
Mouth bag inclusion 24 is lowered the temperature, and arranges water inlet on the top of water-cooling structure, sets in the bottom of water-cooling structure
Put outlet, 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, this material
There is good magnetic conductivity, more than 1400 DEG C can be heated rapidly to by high frequency electric source, be used as empty bag
Heat carrier during preheating.This material has certain high-temperature oxidation resistance simultaneously, solves zone of heating 23
The problem in service life.
Use the present invention for the molten steel feed system preparing amorphous band carried out empty bag heat run and
Crossing steel test, resistance heating tundish 1 internal temperature described in empty bag heat run can arrive 1420 DEG C,
The nozzle bag inclusion 24 of described sensing heated nozzle bag 2 can meet nozzle bag inclusion 24 structural safety
In the case of be heated to more than 1400 DEG C.Cross in steel test, the steel in described sensing heated nozzle bag 2
Liquid temp is continuously adjustabe in the range of 1200～1450 DEG C.
Analyze and understand, compared with prior art, advantages of the present invention and having the beneficial effects that:
One, the molten steel feed system for preparing amorphous band that the present invention provides, can make in molten steel
Inclusion floating and reach the purpose of cleaning molten steel；Can also quickly adjust the temperature of molten steel simultaneously so that it is
Reach to prepare the temperature needed for amorphous band.
Two, the resistance of the present invention heats stopper 14 and the cooperation at the mouth of a river 13 of tundish 1, it is possible to achieve
Flow control effect.
Three, the tundish inclusion 11 of the present invention is divided into working lining 111 and heat-insulation layer 112, it may be possible to fast
Molten steel is heated and is incubated by speed.
Four, the heating element heater 15 that the present invention is arranged, it is possible to meet the demand of resistance heating.
Five, the argon-blowing device 16 that the present invention is arranged, can quickly realize the inclusion floating of molten steel and make steel
Liquid temp homogenization.
Six, the present invention senses the setting of heated nozzle bag 2, it is possible to achieve the temperature of molten steel controls.
As known by the technical knowledge, the present invention can be by other essence without departing from its spirit or essential feature
Embodiment realize.Therefore, embodiment disclosed above, for each side, is all to lift
Example illustrates, is not only.All within the scope of the present invention or within being equal to the scope of the present invention
Change and be all included in the invention.
Claims (10)
1. the molten steel feed system being used for preparing amorphous band, it is characterised in that including:
Resistance heating tundish, is used for receiving molten steel and purifying molten steel；With
Sensing heated nozzle bag, is placed in the lower section of described resistance heating tundish, is used for receiving described resistance
Heat the molten steel of tundish injection and molten steel is carried out temperature regulation；Under described sensing heated nozzle bag
Side is provided with nozzle, and described nozzle is for pouring into a mould molten steel.
Molten steel feed system for preparing amorphous band the most according to claim 1, its feature exists
In, described resistance heating tundish includes:
Tundish inclusion, the upper end of described tundish inclusion is that opening is arranged, at described tundish inclusion
Lower end is provided with the mouth of a river, and described tundish inclusion is used for accommodating molten steel；
Clad, is arranged on the aperture position of described tundish inclusion；With
Stopper, the lower end of described stopper contacts with the conflict of the described mouth of a river, and described stopper is joined with the described mouth of a river
Conjunction realizes flow control.
Molten steel feed system for preparing amorphous band the most according to claim 2, its feature exists
In:
Described tundish inclusion is trapezoidal pack arrangement wide at the top and narrow at the bottom.
Molten steel feed system for preparing amorphous band the most according to claim 2, its feature exists
In, described tundish inclusion includes:
Working lining, is used for accommodating molten steel；With
Heat-insulation layer, described working lining is wrapped up by described heat-insulation layer, and described heat-insulation layer is for described working lining
It is incubated.
Molten steel feed system for preparing amorphous band the most according to claim 2, its feature exists
In:
It is provided with heating element heater in the bottom of described clad.
Molten steel feed system for preparing amorphous band the most according to claim 5, its feature exists
In:
Described heating element heater is straight type siliconit.
Molten steel feed system for preparing amorphous band the most according to claim 2, its feature exists
In, described resistance heating tundish also includes:
Argon-blowing device, described argon-blowing device is arranged on the bottom of described tundish inclusion, is used for making in molten steel
Inclusion floating and keep molten steel temperature homogenization.
Molten steel feed system for preparing amorphous band the most according to claim 1, its feature exists
In, described sensing heated nozzle bag includes:
Nozzle bag inclusion, is used for providing support；
Induction coil, is arranged on the inside of described nozzle bag inclusion；With
Zone of heating, is close to the inner side of described induction coil, is used for accommodating molten steel and heating molten steel.
Molten steel feed system for preparing amorphous band the most according to claim 8, its feature exists
In:
Described zone of heating is that high temperature resistant conductive material is made.
Molten steel feed system for preparing amorphous band the most according to claim 8, its feature
It is:
The inside of described nozzle bag inclusion is provided with water-cooling structure, for described nozzle bag inclusion is lowered the temperature,
Water inlet is set on the top of described water-cooling structure, outlet is set in the bottom of described water-cooling structure, use
Water filling and draining in described water-cooling structure.
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| CN201511032279 | 2015-12-31 | ||
| CN2015110322792 | 2015-12-31 |
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| CN105834382B CN105834382B (en) | 2018-02-23 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN107052285A (en) * | 2017-03-23 | 2017-08-18 | 江苏驰睿新材料科技有限公司 | A kind of combined type sprays pack arrangement |
| 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 |
| CN108080591A (en) * | 2017-12-27 | 2018-05-29 | 河南中岳非晶新型材料股份有限公司 | A kind of amorphous band Integrated strip spraying bag and its bag method processed |
| EP4344803A1 (en) | 2022-09-29 | 2024-04-03 | SMS Group GmbH | Method for preparing and producing a metallic product by continuous casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| CN108080591A (en) * | 2017-12-27 | 2018-05-29 | 河南中岳非晶新型材料股份有限公司 | A kind of amorphous band Integrated strip spraying bag and its bag method processed |
| 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 |
| EP4344803A1 (en) | 2022-09-29 | 2024-04-03 | SMS Group GmbH | Method for preparing and producing a metallic product by continuous casting |
| 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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