CN108602115A - The device of injection melted material, Casting Equipment and casting method with this device - Google Patents
The device of injection melted material, Casting Equipment and casting method with this device Download PDFInfo
- Publication number
- CN108602115A CN108602115A CN201680081282.XA CN201680081282A CN108602115A CN 108602115 A CN108602115 A CN 108602115A CN 201680081282 A CN201680081282 A CN 201680081282A CN 108602115 A CN108602115 A CN 108602115A
- Authority
- CN
- China
- Prior art keywords
- mold
- raw material
- unit
- additive
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B22D11/165—Controlling or regulating processes or operations for the supply of casting powder
-
- 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
- B22D11/108—Feeding additives, powders, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of for injecting the device of melted material, using the Casting Equipment and casting method of the device, and casting method includes：Prepare main protection slag；Molten steel is injected into mold；By melting main protection slag to generate molten mold flux, and molten mold flux is injected on the top surface of molten steel；Block；And determine whether in its as-cast condition during casting to input additive based on slab.The present invention can improve the quality and productivity of slab.
Description
Technical field
This disclosure relates to the device for injecting melted material, Casting Equipment and casting method using the device.More
Specifically, this disclosure relates to for inject melted material, the device of the quality of slab and productivity can be improved, using the dress
The Casting Equipment and casting method set.
Background technology
For injecting the device of melted material, for example for injecting used molten mold flux during slab casting
Device be a kind of powdered covering slag to be made to melt and supply the covering slag to the equipment of mold.Typical molten mold flux
Injection device includes：Hopper, hopper are configured to for storing covering slag wherein；Smelting furnace, smelting furnace are configured to for receiving
Covering slag from hopper simultaneously makes its fusing；And spray gun, spray gun be arranged in the side of smelting furnace and be configured to for pass through by
Flame is ejected into smelting furnace that covering slag is made to melt.It is melted at this point, can be limited at smelting furnace and be configured to discharge
Melt the discharge port of covering slag.
Therefore, when covering slag is melted and is supplied to mold, the decline of liquid steel temperature in mold can be inhibited, simultaneously
Lubricating ability can be improved, to reduce the defect of slab.
However, when being melted come block by making to be made for for each steel grade the covering slag with specific components,
The component of covering slag due to include in steel impurity and covering slag between react and change.For example, when slab use is comprising big
When measuring the molten steel casting of Al, due to obtaining Al in covering slag2O3, therefore the viscosity of covering slag increases.
Thus, covering slag will not smoothly flow therein between mold and slab (solidified shell), therefore between molten steel and mold
Heat, which is transmitted, becomes uneven and lubricating ability reduces.Therefore, such as surface of solidified shell rupture or slab occurs and crack occurs
Operating accident.
This variation of the component of covering slag may cause to be difficult to carry out the multiple of single-grade steel to feed at least once
Continuously casting.
On the other hand, in the case where the steel to two kinds of grades carries out multiple continuously casting, the variation of steel grade may need
It is suitable for changing the covering slag of grade.Therefore, it when changing steel grade, should will be made for the grade for changing after
The covering slag of suitable component be injected into mold.However, when supply is suitable for the covering slag of steel grade, it is preferred that tool
There is the covering slag of different component not to be mixed with each other, but due to operating characteristics, there is the covering slag of different component to be mixed with each other
Transient is inevitable.In this transient, covering slag will not smoothly flow therein between mold and solidified shell, because
This solidified shell ruptures sometimes.
Invention content
Present disclose provides a kind of device for injecting melted material that can improve casting efficiency, a kind of use dresses
The Casting Equipment and a kind of casting method set.
Present disclose provides a kind of device for injecting melted material that can improve slab quality, a kind of use dresses
The Casting Equipment and a kind of casting method set.
May include according to the device for injecting melted material of embodiment of the present disclosure：Raw material feed unit, institute
Raw material feed unit is stated to be configured to for being supplied respectively to different the first raw material and the second raw material；Mixed cell, the mixing are single
Member be configured to for so that different first raw materials supplied from the raw material feed unit is mixed with second raw material with
Generate mixture；Melting unit, the melting unit is connected to the mixed cell so that the institute supplied from the mixed cell
Mixture fusing is stated to generate melted material, and the melting unit has discharge port, the melted material is via institute
State discharge port discharge；And control unit, described control unit are disposed for by controlling the raw material feed unit, institute
The operation of mixed cell and the melting unit is stated to control the component of the mixture.
The raw material feed unit may include：First raw material feed unit, the first raw material feed unit are configured to
For supplying the first raw material；And multiple second raw material feed units, the second raw material feed unit are configured to for distinguishing
Supply includes a variety of second raw materials of different component.
The first raw material feed unit may include：First storage unit, first storage unit are configured to be used for
First raw material is stored wherein；First dispatch tube, first dispatch tube be used for by first storage unit with it is described
Mixed cell is connected to；And first feeder, first feeder are attached to first storage unit and described first and pass
At least one of pipe is sent, to adjust the discharge capacity of first raw material.
The second raw material feed unit may include respectively：Second storage unit, second storage unit are configured to
For each second raw material in wherein storing a variety of second raw materials；Second dispatch tube, the second dispatch tube structure
It causes for being connected to each of multiple described second storage units with the mixed cell；And second feeder, institute
It states the second feeder and is attached at least one of second storage unit and second dispatch tube, to adjust each institute
State the discharge capacity of the second raw material.
The mixed cell may include：Mixing vessel, the mixing vessel and first supply pipe and described second
Supply pipe is connected to；Blender, the blender are arranged in the mixing vessel, for making first raw material and described the
Two raw materials mix；And third dispatch tube, the third dispatch tube are used for the institute of first raw material and second raw material
It states mixture and is sent to the melting unit.
The mixed cell may include the mixing vessel being connected to the first supply pipe and the second supply pipe, and described mixed
It is rotatable to close container.
The melting unit may include：Smelting furnace defines melting space, the melting space in the smelting furnace
For receiving first raw material and second raw material wherein；Heat source feed unit, the heat source feed unit are arranged in
The side of the smelting furnace, to supply heat source to the melting space.
The heat source feed unit uses plasma as the heat source.
Described control unit can be configured to determine whether to inject second raw material based on input signal.
A kind of Casting Equipment may include：Mold, the mold is for receiving molten steel and the molten steel being made tentatively to solidify；Structure
Cause the device for being injected into molten mold flux in the mold；Measuring unit, the measuring unit are configured to for surveying
Measure at least one of the component of the temperature and the molten mold flux being injected into the mold of the mold；And control
Unit, described control unit are disposed for controlling the operation of described device based on the measurement result from the measuring unit,
To change to be injected into the component of the molten mold flux in the mold.
Above-mentioned apparatus may include：First raw material feed unit, the first raw material feed unit are configured to for supplying
Main protection slag；Second raw material feed unit, the second raw material feed unit are configured to for supplying additive；Mixed cell,
The mixed cell is configured to for making to supply from the first raw material feed unit and the second raw material feed unit respectively
The main protection slag and the additive mixing, to generate mixture；And melting unit, the melting unit are configured to
For melting the mixture supplied from the mixed cell to generate molten mold flux, and it is configured to for described will melt
Melt covering slag to be injected into the mold.
The second raw material feed unit can individually store a variety of additives wherein, and described second supplies
To Unit selection the multiple additives are fed to the mixed cell.
The measuring unit may include being configured to the thermometer of the temperature for Measurement die.
The measuring unit may include：Probe, the probe structure are protected at for acquiring the melting being injected into mold
Protect slag；Analytic unit, the analytic unit are disposed for analyzing by the component of the molten mold flux of probe collection.
Described control unit can be configured to determine whether input additive using the measurement result from measuring unit,
And it is configured to control the type and input quantity of additive by controlling the second raw material feed unit based on measurement result.
A kind of casting method may include：Prepare main protection slag；Molten steel is injected into mold；Main protection slag is melted to produce
Raw molten mold flux, and molten mold flux is injected on the top surface of molten steel；Block；And based on slab in its casting phase
Between as-cast condition determine whether input additive.
When preparing main protection slag, additive can be prepared.
In fusing main protection slag during generating molten mold flux, main protection slag can be made to be consequently flowed together with additive.
When casting the slab, the temperature of the mold can be measured, to show the casting of the slab
Make state, and the method may include determine whether to input the addition based on the temperature of the measured mold
Agent.
When casting the slab, the component for the molten mold flux being injected into the mold can be divided
Analysis, to show the as-cast condition of the slab, the method may include based on the molten mold flux analyzed
Component determines whether to input the additive.
The method may include：After the additive is added in judgement, make the main protection slag and the additive
Mixing melts the mixture to form mixture, is then injected into the molten mold flux comprising the component after change
In the mold.
The method may include：When casting the slab to be injected into the grade of the molten steel in the mold
In the case of change, the main protection slag is made to be mixed with the additive, melts the mixture, and the group after change will be included
The molten mold flux divided is injected into the mold.
When making the main protection slag be mixed with the additive, the component of the additive injected can be according to the steel
The grade of water and change.
When making the main protection slag be mixed with the additive, including the injection rate of the additive of same composition can root
Change according to the grade of the molten steel.
It, can be by change of component in quick response mold slag during casting according to embodiment of the present disclosure
Improve casting efficiency and slab quality.
In other words, it by controlling the component of mold slag in addition additive during casting, can cope in real time
The change of component of mold slag.
Accordingly it is possible to prevent slab surface cracks caused by change of component due to mold slag or solidified shell rupture, this
Sample can improve the quality of slab.
Furthermore, it is possible to which the steel to single grade carries out full stove continuously casting, and productivity can be improved.
In addition, being suitable for the melting of steel grade by quickly producing and supplying in the full stove continuously casting of various grade steels
Protecting flux can improve casting efficiency.
Therefore, it can inhibit or prevent out by the incorporation time of molten mold flux of the reduction with different physical properties
The phenomenon that existing slab rupture.
Description of the drawings
Fig. 1 is the schematic diagram according to the Casting Equipment of embodiment of the present disclosure.
Fig. 2 shows the main constructions of Casting Equipment shown in FIG. 1.
Fig. 3 is the block diagram for the construction for showing Casting Equipment shown in Fig. 2.
Fig. 4 is the sequence chart for the casting method for showing the first embodiment according to the disclosure.
Fig. 5 is to conceptually illustrate to be noted molten mold flux in block according to the second embodiment of the disclosure
Enter the block diagram of the method into mold.
Fig. 6 is to show based on whether inputting addition when according to the casting method block of embodiment of the present disclosure
The curve graph of the experimental result of agent.
Specific implementation mode
Hereinafter, embodiment of the present disclosure is described in detail with reference to the accompanying drawings.However, the disclosure can be with many
Different forms is implemented, and should not be construed as being limited to embodiment described herein, on the contrary, these embodiments are only
It provides by way of illustration, so that the disclosure is abundant, and the full scope of the present invention is communicated to this field skill completely
Art personnel.
Fig. 1 is according to the schematic diagram of the Casting Equipment of embodiment of the present disclosure, and Fig. 2 shows castings shown in FIG. 1 to set
Standby main construction and Fig. 3 are the block diagrams for the construction for showing Casting Equipment shown in Fig. 2.
Referring to Fig.1, may include according to the Casting Equipment of embodiment of the present disclosure：Ladle 10, ladle 10 are configured to use
In refined molten steel in wherein receiving steelmaking process；Tundish 20, tundish 20 are configured to for by being connected to ladle
10 injection nozzle (not shown) receives molten steel, temporarily molten steel is stored in tundish 20 and supplies molten steel to mold
30；Mold 30, mold 30 are configured to for receiving molten steel by being connected to the immersion nozzle 22 of tundish 20 and tentatively making
Molten steel solidification is at uniform shape；Cooling line 40, cooling line 40 are arranged in the lower section of mold 30 and with continuous settings
Multiple sections, for executing a series of be molded as to not solidifying while slab 1 cools down of being pulled out from mold 30
Type operates.
In addition, with reference to Fig. 2 and 3, Casting Equipment may include：Device 100 for injecting melted material, wherein device
100 are configured to for making covering slag melt and supply covering slag to the top surface of the molten steel to be fed to mold 30；It measures single
Member 130, the various components caused by being configured to for measuring the change of component by the covering slag in mold 30 of measuring unit 130 become
Change；Control unit 140, control unit 140 are disposed for controlling for noting based on the measurement result from measuring unit 130
Enter the operation of the device 100 of melted material.
Device 100 for injecting melted material can be such that solid-state covering slag melts and by liquid covering slag (that is, melting is protected
Protect slag) it supplies to mold 30.Conventionally, for inject the device of melted material by heat utensil such as plasma torch come
Make actually to provide into the covering slag with the specific components for being suitable for a steel grade to melt and supply it to mold 30 simultaneously.
However, although the molten mold flux in being supplied to mold 30 during casting reacts with the impurity in molten steel and changes its component,
But due to the covering slag for continuously supplying same composition for injecting the device of melted material, the real-time of component can not possibly be coped with
Variation.
In addition, in the case where carrying out more stove continuously castings to different grades of steel, provide with being suitable for multiple steel
The covering slag of a variety of different components of grade.Therefore, covering slag is changed to the covering slag with the component for being suitable for steel grade
It is time-consuming, and the covering slag of different component is inevitably mixed with each other in smelting furnace 112.Due to mixing for covering slag
It closes, covering slag will not smoothly flow therein between mold 30 and solidified shell so that the problem of such as solidified shell ruptures occurs.
Therefore, in order to solve the above problem of the device for injecting melted material, the device for injecting melted material
100 are configured to change in real time in the disclosure supply to the component of the molten mold flux of mold 30.Hereinafter, term " is protected
Solid-state covering slag when shield slag " refers to before being supplied to smelting furnace 112, then when solid-state covering slag is in smelting furnace 112
After fusing, covering slag is referred to as " molten mold flux ".In addition, after molten mold flux is injected into mold 30, protection
Slag is referred to as " mold slag ".
May include according to the device 100 for injecting melted material of embodiment of the present disclosure：Raw material feed unit
110, raw material feed unit 110 is configured to for supplying solid-state covering slag；Melting unit 120, melting unit 120 is for receiving simultaneously
Solid-state covering slag is melted to generate molten mold flux, and molten mold flux is injected into mold 30；And control unit 140,
Control unit 140 is disposed for controlling the operation of raw material feed unit 110 and melting unit 120.
Raw material feed unit 110 may include：First raw material feed unit 112, the first raw material feed unit 112 are configured to
For supplying the first raw material；Second raw material feed unit 114, the second raw material feed unit 114 are configured to former for supplying second
Material；And mixed cell 116, mixed cell 116 are connected to the first raw material feed unit 112 and the second raw material feed unit 114,
And mixed cell 116 is configured to for making to supply from the first raw material feed unit 112 and the second raw material feed unit 114 respectively
The first raw material and the second raw material mixing.
In addition, raw material feed unit 110 can be supplied the mixture of the first raw material and the second raw material by mixed cell 116
To melting unit 120, but it can arrange that raw material feeds unit 118 between mixed cell 116 and melting unit 120, it will
First raw material or the mixture of the first raw material and the second raw material are supplied uniformly across to melting unit 120.
First raw material feed unit 112 may include：First storage unit 112a, the first storage unit 112a are configured to use
In storing the first raw material such as main protection slag wherein；And the first dispatch tube 112b, the first dispatch tube 112b are used for first
Storage unit 112a is connected to mixed cell 116.
First storage unit 112a stores the first raw material of solid-state such as main protection slag wherein.First feeder 112c can be with
It is arranged in from the first storage unit 112a and discharges from the position of main protection slag, or be arranged at the first dispatch tube 112b, so as to
Main protection slag is discharged with predetermined amount or distributes evenly main protection slag.At this point, the first feeder 112c can be setting
The feeding screw operated at the first storage unit 112a or the first dispatch tube 112b and by the operation of driving device, or
The first feeder of person 112c can be switched on or off the connection of the first storage unit 112a and the first dispatch tube 112b or open
The valve of flow path inside logical or the first dispatch tube 112b of shutdown.
Second raw material feed unit 114 may include：Second storage unit 114a, the second storage unit 114a is at it
Middle storage the second raw material such as additive；And the second dispatch tube 114b, the second dispatch tube 114b are single for being connected to the second storage
First 114a and mixed cell 116.At this point, multiple second storage unit 114a can be provided so that various types of to add
Add agent that can be individually stored in multiple second storage unit 114a.Second feeder 114c can be arranged in the second storage
Memory cell 114a discharge additive position at or be arranged at the second dispatch tube 114b, so as to by additive with predetermined amount
It is emitted into mixed cell 116 or distributes evenly to mixed cell 116.Second feeder 114c can be connected to the second storage
Unit 114a or the second dispatch tube 114b and the feeding screw or the second feeder operated by the operation of driving device
114c can be switched on or off the connection of the second storage unit 114a and the second dispatch tube 114b or be switched on or off second
The valve of flow path inside dispatch tube 114b.
Due to this construction, the second raw material feed unit 114 can selectively supply at least one in multiple additives
Kind.
Mixed cell 116 can will be respectively from the master of the first raw material feed unit 112 and the second raw material feed unit 114
The covering slag after evenly mixing of covering slag and additive is supplied to melting unit 120.Mixed cell 116 will can also only come from
First raw material of the first raw material feed unit 112 is supplied to melting unit 120.
Mixed cell 116 may include：Mixing vessel 116a, mixing vessel 116a are configured to for receiving difference wherein
The main protection slag and additive supplied from the first raw material feed unit 112 and the second raw material feed unit 114；Blender (does not show
Go out), mixer configuration is equably mixed at the main protection slag for making to be contained in mixing vessel 116a with additive；And the
Three dispatch tube 116b, third dispatch tube 116b are configured to for transmitting the mixture of main protection slag and additive, i.e. covering slag
To melting unit 120.
Mixing vessel 116a can be received wherein from the first raw material feed unit 112 and the second raw material feed unit 114
The solid-state main protection slag and additive of discharge.Third feeder 116c can be arranged in the mixing of discharge main protection slag and additive
At the position of object, either it is arranged at third dispatch tube 116b to discharge or distribute evenly the first raw material with predetermined amount
With the mixture of the second raw material.At this point, third feeder 116c can be provided in mixing vessel 116a or third passes
Send feeding screw or third feeder 116c at pipe 116b and operated by the operation of driving device that can be open
Logical or shutdown mixing vessel 116a and third dispatch tube 116b connection is switched on or off inside third dispatch tube 116b
The valve of flow path.
Blender can be formed by screw rod or impeller, and the screw rod or impeller construction in mixing vessel 116a at can revolve
Turn.In addition, blender can be formed by the nozzle that inert gas etc. can be blown into mixing vessel 116a.
In the present specification, mixed cell 116 includes mixing vessel 116a and blender.However, mixing vessel 116a can
It is rotatable to be constructed to, to make main protection slag equably be mixed with additive in the case of no blender.Mixing is single
Member 116 can be without being limited thereto and can be formed with variously-shaped formation, so that main protection slag is equably mixed with additive.
Mixed cell 116 can also include heater 116d, and heater 116d is configured to for main protection slag or master
The mixture of covering slag and additive is preheated.Heater 116d can be arranged at blender or mixing vessel.Main guarantor
Shield slag or the mixture of main protection slag and additive can be heated to predetermined temperature and be supplied to raw material feeding unit 118.
Raw material feeds unit 118：Third storage unit 118a, third storage unit 118a are used for and mix list
The third dispatch tube 116b connections of member 116；4th dispatch tube 118b, the 4th dispatch tube 118b are configured to single for storing third
First 118a is connected to melting unit 120, and supplies the first raw material or the first raw material and the second original by internal flow path
The mixture of material；And the 4th feeder 118c, the 4th feeder 118c can be arranged to connect third storage unit 118a with
4th dispatch tube 118b, by the first raw material or the mixture of the first raw material and the second raw material with predetermined amount supply or equably
It supplies to melting unit 120.With above-mentioned first feeder 112c, the second feeder 114c as third feeder 116c, the
Four feeder 118c can be the feeding screw or valve for being connected to third storage unit 118a and the 4th dispatch tube 118b.
Raw material feed unit 118 can also include for being supplied from mixed cell 116 main protection slag or main protection
The mixture of slag and additive carries out pre-warmed heater 118d.Heater 118d can be arranged in third storage unit 118a
Or the 4th at dispatch tube 118b.Main protection slag or the mixture of main protection slag and additive can be heated to by heater 118d
Predetermined temperature is simultaneously supplied to melting unit 120.Therefore, pass through acceleration main protection slag or the mixture of main protection slag and additive
Fusing, can quickly respond the variation of the component of mold slag.
Melting unit 120 can be by heating and melting covering slag --- the main protection slag supplied from mixed cell 116
With the mixture of additive --- to generate molten mold flux and temporarily store molten mold flux, and discharge molten mold flux simultaneously
It is injected into mold 30.Melting unit 120 may include：Smelting furnace 112, smelting furnace 112 are configured to for connecing wherein
Receive the mixture supplied from mixed cell 116；Heat source feed unit 128, heat source feed unit 128 are configured to for supplying melting
Heat source in stove 112.
The melting space injected and melted for main protection slag and additive can be limited in the inside of smelting furnace 112, and
Discharge port 126 for molten mold flux to be injected into mold 30 can be limited at the side of smelting furnace 112.Smelting furnace
112 can be formed with the approximate " V " shape shape with reclinate central part, and can be arranged in an inclined manner.
Smelting furnace 112 may include：Injection port 124, the covering slag that injection port 124 is used to discharge from mixed cell 116 is molten
It refines and is injected into melting space at the upside in space；And discharge port 126, discharge port 126 is used for will be in melting space
The molten mold flux of generation is injected into mold 30.In addition, heat source feed unit 128 can be connected to the side of smelting furnace 112,
To supply heat source to melting space.Since heat source can be supplied from 112 side of smelting furnace, the covering slag in melting space can
To be melted so that molten mold flux can be generated and is temporarily stored in melting space, and by being located at smelting furnace 112
The other side discharge port 126, molten mold flux can discharge and be injected into mold 30.Can be because of smelting furnace in this way
112 are arranged in an inclined manner.The discharge capacity of molten mold flux can be adjusted based on the inclined degree of smelting furnace 112.
Heat source feed unit 128 may include plasma torch and supply plasma gas such as nitrogen to plasma torch
Gas (N2), the air supply pipe of argon gas (Ar), helium (He) etc..Plasma torch is to generate 20,000 DEG C or higher height using electricity
The device of the plasma of temperature, and generate plasma for the melting space of smelting furnace 112.Plasma torch can wrap
It includes：Plasma confinement tube for receiving the plasma gas supplied from air supply pipe；It is arranged to surround plasma confinement tube
Induction coil；And the power supply unit for being supplied electric power to induction coil.Therefore, when the electric power from power supply unit applies
When to induction coil, plasma is generated in plasma confinement tube.Resulting plasma and drawn by plasma
The heat risen may be used as fusion mixture --- that is, supplying to the solid-state covering slag in melting space and adding by injection port 124
Add agent --- heat source.Molten mold flux in melting space can be temporarily stored in melting space, and work as smelting furnace
When 112 inclination, covering slag can be discharged from discharge port 126 and is injected into mold 30.
Constituting the smelting furnace 112 of melting unit 120 can be formed with variously-shaped formation, and molten mold flux can also pass through
Various modes are discharged.This melting unit 120 is known technology, therefore its detailed description will be omitted.
By this construction, the device 100 for injecting melted material can be with real-time control and the component of fusing covering slag
And it is injected into mold 30.
In addition, measuring unit 130 can be arranged at mold 30.Measuring unit 130 may include being used for Measurement die 30
Hot transmission behavior thermometer or component for measuring the covering slag being injected into mold 30 probe.
When thermometer is used as measuring unit 130, thermometer may be mounted at mold 30 with the temperature of Measurement die 30
Variation.For example, when in the case where the steel to single-grade carries out multiple continuously casting, the viscosity of mold slag is in a period of time
Afterwards due to by Al2O3It is introduced into mold slag and increases.Therefore, mold slag unevenly introduce mold 30 and solidified shell it
Between, and cannot suitably be lubricated.
As a result, 30 heat transmission is uneven from solidified shell to mold, so as to cause by the change of the temperature value of thermometer measure
Change.It therefore, can be by based on the group changed by the temperature value of thermometer measure to be injected into the molten mold flux in mold 30
Divide to improve casting character.
When probe is used as measuring unit 130, a part of mold slag in mold 30 is sampled.Then, pass through analysis
By the component of the mold slag of probe collection, relatively and the component and mould for being injected into the molten mold flux in mold 30 can be analyzed
Has the component of slag.It, can be by changing in the future to be injected into mold in response to the variation of the component of mold slag during casting
The component of molten mold flux in 30 improves casting character.
In the description of casting method, the measurement result based on measuring unit 130 is added additives in covering slag
It can be described again.
Control unit 140 can receive the measurement result of measuring unit 130.Measurement result based on measurement, control unit
140 can control the operation of raw material feed unit and control the component to be injected into the molten mold flux in mold 30.As a result, can
To control the supply amount of main protection slag and additive.In addition, control unit 140 controls melting unit 120 and measuring unit 130
Operation, to be controlled to be injected into the supply amount of the molten mold flux in mold 30 based on measurement result.
It hereinafter, will be to being described according to the casting method of embodiment of the present disclosure.
Casting method according to the disclosure may include the first embodiment party for using the steel of single grade come block
Formula and second embodiment for carrying out block using the steel of two kinds of grades.
Fig. 4 is the sequence chart for showing the casting method according to disclosure first embodiment.
First, description is come to the first embodiment of block using the steel of single grade.
May include according to the casting method of first embodiment of the invention：The step of preparing main protection slag and additive
S110；The step S120 that will be injected by the molten steel of ladle 10 and tundish 20 in mold 30；For molten mold flux to be noted
Enter the step S130 to the top surface for having been injected into the molten steel in mold 30；Step S140 for measuring as-cast condition；And it is used for
Analysis as-cast condition and the step S150 for determining whether to input additive；With the step S160 for inputting additive.By molten steel
Be injected into mold 30 with molten mold flux to be consecutively carried out during casting.In addition, by judging whether casting is completed
Step S170, can be repeatedly carried out during casting measure as-cast condition and input additive.
Hereinafter, the molten mold flux being injected into mold 30 when casting starts is known as the first molten mold flux,
And the second molten mold flux will be known as in the molten mold flux for mixing and being injected into mold 30 with additive during casting.
When preparing main protection slag and additive, solid-state main protection slag is provided into the first storage unit 112a, and
It will wait for that the additive mixed with main protection slag provides into the second storage unit 114a during casting.At this point, melting
Covering slag may include CaO, SiO2、MnO、P2O5、Al2O3、MgO、TiO2、K2O、Na2O、F、Fe2O3Deng.It can be by main protection slag
It is prepared into the ingredient with the molten steel for being suitable for using in casting.In addition, additive can be selected from include NaF (s),
Na3AlF6、CaF2(s)、AlF3(s)、SiO2(s)、Li2O(s)、LiF(s)、CaO、MnO、P2O5, MgO, Al2O3(s)、TiO2、
Fe2O3、K2O(s)、Na2The mixture of a kind of component or at least two components in the group of O (s).
When molten steel to be injected into mold 30, refining process is completed, and the molten steel being contained in ladle 10 passes through note
Enter nozzle and be supplied to tundish 20, and is supplied to the molten steel of tundish 20 and passes through the immersion nozzle 22 that is arranged at tundish 20
It is injected into mold 30.
Once after molten steel is injected into mold 30, the first molten mold flux is injected into the top surface of the molten steel in mold 30.
Main protection slag is transmitted to from for its first storage unit 112 being initially stored for by the mixing vessel 116a of mixed cell 116
Melting unit 120.First molten mold flux can be generated by making the main protection slag in melting unit 120 melt.
The first molten mold flux that casting is injected when starting can be generated by making the only main protection slag in melting unit 120 melt.
So that slab can be cast by the way that molten steel and the first molten mold flux to be injected into mold 30.Injection
It is flowed between mold 30 and solidified shell (or molten steel) to the first molten mold flux in mold 30 --- that is, mold slag ---,
To which the heat controlled between mold 30 and solidified shell is transmitted, and it is lubricated so that the casting of slab is smooth.
Cast start when, mold slag keeps its component in injection, but with the progress of casting, the impurity in molten steel
It flows into mold slag, the component of mold slag changes.For example, as the Al in molten steel2O3When being introduced into mold slag,
The viscosity of mold slag increases.In this case, mold slag will not smoothly flow between mold 30 and solidified shell, and
Mold slag is unevenly introduced in the width direction of mold 30 and longitudinal direction.
As a result, heat is unevenly transmitted between mold 30 and solidified shell, and solidified shell cannot be properly formed.Cause
This may occur crack in steel slab surface or slab rupture occurs after the casting.
By means of the second molten mold flux prepared by making main protection slag be mixed with additive is being noted during casting
Enter into mold 30, can in response to the component of mold slag variation by enable mold slag uniformly flow into mold with
Improve the quality of slab between solidified shell.
As-cast condition can be based on by whether injecting additive --- such as temperature change of mold 30 or the group of mold slag
The variation divided --- to determine.
By the temperature change in Measurement die 30 during casting, additive is mixed into based on measured temperature change
In covering slag, and the mixture is melted and is injected into mold 30, to the variation of the component of quick response mold slag.Cause
This can be kept identical as the starting stage is cast by enabling mold slag to uniformly flow between mold 30 and solidified shell
Heat-transfer character and lubricating ability, until casting complete.
The temperature of mold 30 can be by installing multiple thermometers on the longitudinal direction of mold 30 and width direction and surveying
The longitudinal direction and (or) temperature value in width direction for measuring mold 30 measure.It then, can be to the measurement from thermometer
The deviation of temperature value measures.When the measurement temperature value fall and initial measured temperature value difference about 0% to 5% deviation model
When enclosing interior, casting can carry out as it is.Alternatively, when the measurement temperature value deviates above-mentioned deviation range, it may be determined that note
Enter additive.
As result of the comparison, when the measurement temperature value is in deviation range, judgement mold slag is uniformly injected into mould
Between tool 30 and solidified shell, and the change of component of mold slag is inapparent, therefore is protected with melting when initial casting
There is slag --- i.e. the first molten mold flux --- molten mold flux of same composition to be injected into mold 30.
However, when the measurement temperature value deviates deviation range, it is prodigious to judge that the component of mold slag has occurred that
Variation.Therefore, mold 30 can be injected by being injected with the molten mold flux of additive --- that is, second molten mold flux ---
In.
It can be selected as follows to be injected into the additive in mold 30.
When casting beginning, changed in a certain range by the temperature value of thermometer measure, this is because mold slag
Component has almost no change.However, with the progress of casting, the impurity in molten steel is flowed into mold slag, so as to cause mould
The component of tool slag changes.For example, the Al in molten steel2O3May flow into or mold slag in fluorine (F) component can
It can volatilize, so as to cause the viscosity higher of mold slag.In this case, since mold slag is not uniformly introduced mould
Between tool 30 and solidified shell, therefore heat-transfer capability reduces, to by the measurement temperature measured by the thermometer mounted on mold 30
Angle value changes.In this case, by making covering slag be mixed with additive and so that mixture is melted and be injected into mold
Inhibit or prevent from casting caused by the change of component of mold slag the deterioration of efficiency in 30.As a large amount of Al2O3It is introduced into
When in mold slag, NaF, CaF can be used2And Li2CO3At least one of be used as additive, and in the mold slag
Fluorin volatilization when, Na can be used3AlF6Or NaF etc. is used as additive.Therefore, the viscosity of the mold slag in mold 30 can be with
It reduces to a certain extent so that mold slag can be uniformly injected between mold 30 and solidified shell.For example, when with 1kg/min
Speed injection melting mold slag when, can using the speed of 50g/min input as additive Na3AlF6.Namely
It says, additive can be inputted in 1% to 5% weight percentage ranges of the mold slag of melting.In this case, it notes
The constituent content entered to the fluorine in the mold slag of mold 30 increases to about 2.7wt%, and the viscosity of mold slag increases, from
And mold slag is smoothly flowed therein between mold and solidified shell.At this point, Al2O3Component and Na2O components are also big
It is slightly increased in the range of 0 to 2wt%.Compared with the variation of fluorine content, Al2O3Content and Na2The variation of O content is little, because
This will not have much impact to casting.
In addition, at least one of above-mentioned various types of additives additive may be used as additive.
The mixing of main protection slag and additive is executed via control unit 140.Control unit 140, which receives, carrys out measurement list
The measurement result of first 130 --- such as thermometers ---, and control the first feeder 112c of the first raw material feed unit 112 with
And second raw material feed unit 114 the second feeder 114c operation.Then, be stored in respectively the first storage unit 112a and
Main protection slag and additive in second storage unit 114a are supplied in the mixing vessel 116a of mixed cell 116.
Hereafter, control unit 140 operates the blender of mixed cell 116, with uniform mixing supply to mixing vessel 116a
Main protection slag and additive.When main protection slag and additive are uniformly mixed, control unit 140 operates mixed cell 116
Third feeder 116c, will the mixture of main protection slag and additive injection melting unit 120 smelting furnace 112 in.
It is injected into the mixture of smelting furnace 112 and passes through the heat that is supplied from the heat source feed unit 128 of melting unit 120 ---
That is, plasma --- fusing, to be produced as the second molten mold flux.Resulting second molten mold flux is by means of melting
The discharge port 126 formed at smelting furnace 112 that is tilted through of stove 112 is injected into mold 30, and is mixed with mold slag.
Therefore, the viscosity of the mold slag in mold 30 reduces, to allow uniformly to flow between mold 30 and solidified shell.
It therefore, can be by quick response by mould by means of the temperature for continuously monitoring mold 30 during casting in slab
Has the temperature change of mold 30 caused by the change of component of slag to improve the quality of slab.During casting to mold slag
The control of component can be repeated as many times according to the measurement result of measuring unit 130.Therefore, because the component of mold slag can be with
It is quickly controlled in response to the change of component of mold slag during casting, unless the device of such as immersion nozzle 22 etc occurs
Deterioration, therefore the number of charging can be increased to extend the casting time, and more stove continuously castings can be carried out, this can be carried
The production capacity of high molten steel improves the output of slab.
In the present specification, the temperature change based on mold 30 is described come the change of component of Measurement die slag.However,
The component of mold slag can be by analyzing in acquisition mold slag during casting.Alternatively, when by Al2O3It is injected into mould
When having in slag, since the color of mold slag changes, the change of component of mold slag can be visually estimated.
In the following, the second embodiment of the disclosure will be described below.
Fig. 5 is to conceptually illustrate to be noted molten mold flux in block according to the second embodiment of the disclosure
Enter the block diagram of the method into mold.
The second embodiment of the disclosure describe cast different grades of steel, such as two kinds grades steel method.
For example, when using high Al or high Mn steel blocks, the covering slag with different component is used.In such case
Under, covering slag to be used includes CaO, SiO2、MnO、P2O5, Al2O3、MgO、TiO2、K2O、Na2O、F、Fe2O3Deng, but its
Content has differences, and may further include other components.Therefore, when the steel of continuously casting both grades, become in steel grade
Different covering slags is injected when change.In this case, the suitable covering slag based on steel grade should be provided separately.In this point
On, when the output for the steel grade to be cast is small, the molten mold flux remained in melting furnace is discarded, and new covering slag is made
It melts and is provided as molten mold flux, or the transition that the covering slag with different component is mixed with each other during casting occurs
Phenomenon.
Therefore, in the second embodiment of the disclosure, the component of molten mold flux can be based on using in casting
Steel grade is controlled and is injected into mold 30.
Hereinafter, the covering slag suitable for all steel grades is referred to as main protection slag, in the addition that casting starts with
Agent is known as the first additive, when the additive that steel grade is used when changing during casting is known as Second addition.In addition, being based on
It is referred to as third additive in the additive that the result measured during casting by measuring unit 130 uses.
May include according to the casting method of second embodiment of the invention：Prepare main protection slag and the first additive,
Second addition and third additive；It will be injected into mold 30 by the first molten steel of ladle 10 and tundish 20；It will pass through
The first molten mold flux for making main protection slag be mixed with the first additive and preparing is injected into the first steel having been injected into mold 30
The top surface of water；After being completed using the casting of the first molten steel, the second molten steel is injected into mold 30；And main guarantor will be used
Second molten mold flux prepared by shield slag and Second addition is injected into the top surface for having been injected into the second molten steel in mold 30.This
Outside, may include measuring as-cast condition and being injected based on as-cast condition when using the first molten steel and the second molten steel block
Third additive.
At this point, the casting using the first molten steel and the casting using the second molten steel can be executed successively, casting is measured
Making state and injecting third additive to repeat before the casting that judgement is completed using the second molten steel during casting
It executes.
First, it when preparing main protection slag, the first additive, Second addition and third additive, prepares and is suitable for institute
There are the main protection slag of steel grade, the first additive of component for controlling covering slag based on steel grade, for during casting
Control the Second addition of the component of mold slag.Main protection slag may include CaO, SiO2、MnO、P2O5、Al2O3、MgO、
TiO2, K2O、Na2O、F、Fe2O3Deng.In addition, third additive can be selected from including NaF (s), Na3AlF6、CaF2(s)、AlF3
(s)、SiO2(s)、Li2O(s)、LiF(s)、CaO、MnO、P2O5、MgO、Al2O3(s)、TiO2、Fe2O3、K2O(s)、Na2O (s) and C
At least one of group.The first additive and Second addition are prepared, for controlling the component of covering slag based on steel grade,
First additive and Second addition may include at least one of the component of main protection slag component, and may include second
At least one of component of additive component.That is, the first additive and Second addition can be CaO, SiO2、MnO、P2O5、
Al2O3、MgO、TiO2, K2O、Na2O、F、Fe2O3、NaF(s)、Na3AlF6、CaF2(s)、AlF3(s)、SiO2(s)、Li2O(s)、
LiF(s)、CaO、MnO、P2O5、MgO、Al2O3(s)、TiO2、Fe2O3、K2O(s)、Na2At least one of O (s) and C.In addition,
First additive and Second addition can be identical components.
Thus the main protection slag prepared can be stored in the first storage unit 112a of the first storage unit, and
First additive, Second addition and third additive can be stored in the second storage unit 114a of the second storage unit
In.In this regard, the second storage unit 114a could be provided as multiple, and can store the first additive, second add
Add each component in the component of agent and third additive.
Hereafter, when cast start when, the first molten steel is injected into mold 30, and will be by mixing main protection slag and the
One additive and the first molten mold flux for generating are injected into the top surface of the first molten steel.
After being completed using the casting of the first molten steel, the second molten steel is injected into mold 30, and mixing will be passed through
Main protection slag and Second addition and the second molten mold flux for producing are injected into the top surface of the second molten steel.
For example, when the first molten steel is potassium steel and the second molten steel is high manganese high-aluminum steel, the first molten mold flux and second
Molten mold flux has different Al2O3Content.That is, the first molten mold flux contain it is fewer than the second molten mold flux
Al2O3。
Therefore, when the first molten steel is injected into mold 30 when starting casting, by a small amount of for example less than 1%
Al2O3It is injected into main protection slag and the first additive.When the casting using the first molten steel is completed and then notes the second molten steel
It, can be by 1% to 3% Al when entering into mold 302O3It is input to main protection slag and Second addition.Second addition can be with
It is injected in a manner of gradual so that the second molten mold flux has the physical property for being suitable for the second molten steel.This is because when the
When the physical property of two molten mold fluxes such as viscosity or basicity suddenly change, the second molten mold flux may not swimmingly flow
Enter between mold and solidified shell, it is thus possible to slab rupture occur.
In the examples described above, the first additive and Second addition are described first is made of and increased same composition and added
Add the example of the input quantity of agent and the input quantity of Second addition.However, according to the grade to be injected into the molten steel in mold 30,
The input quantity of first additive and the input quantity of Second addition can gradually decrease, and the component of the first additive and second
The component of additive can be different.In addition, though the method cast using the molten steel of two kinds of grades has been described, but
It can be cast using the molten steel of two or more grades.
In addition, carried out during casting in steel, i.e. the first molten steel and the second molten steel for using two kinds of grades, it can be such as above-mentioned reality
It applies and measures as-cast condition in mode like that, and the group of mold slag can be controlled based on measurement result using Second addition
Point.
Hereinafter, description is passed through into the Experimental Example according to the casting method block of the disclosure.In the experiment
In property example, variation that the temperature for checking mold is occurred during the steel block using single grade.
Fig. 6 is to show based on whether inputting addition when according to the casting method block of embodiment of the present disclosure
The curve graph of the experimental result of agent.Fig. 6 is shown according to the temperature change in the mold for whether inputting additive during casting.
Multiple thermometers are mounted at mold 30, and Measurement die 30 is in temperature during casting.Thermometer is along mould
The width direction of tool 30 is mounted at multiple points, for example, from the center in the width direction of slab to the longitudinal direction of mold 30
As the casting direction of slab is specifically mounted at top 300mm, 400mm, 500mm and 600mm away from mold 30.
Then, molten steel is injected into mold 30, the first molten mold flux for having melted main protection slag is injected into and has been noted
Enter the top surface of the molten steel in mold 30.
Fig. 6 shows that the temperature of mold 30 changes in a certain range when casting starts (section A).However, casting
Mid-term (section B), the temperature change dramatically of mold 30 and is irregularly fluctuated.Observe mold 30 temperature for a period of time, but
The temperature of mold 30 does not return to the identical pattern of pattern when starting (period A) with casting.
The second molten mold flux generated by mixing and melting main protection slag and additive is injected into mold 30.
At this point, fluorine F is injected as additive.
When the second molten mold flux to be injected into mold 30, the temperature of mold 30 becomes gradual and steadily changes,
And change in a certain range.
This phenomenon may be since the component of mold slag is being become by being reacted with the impurity in molten steel during casting
Caused by changing.Therefore, it is possible to smooth by controlling the component of mold slag by means of injecting additive during casting
Ground is cast, to inhibit or prevent the deterioration of slab quality.
Although the method and apparatus for block is described above, but the present disclosure is not limited thereto, and can be with
Applied to various operations, such as applied to the refinery practice for using aqueous Dephosphorising agent.
In this way, although being directed to particular implementation provides detailed description to the disclosure, but it is to be understood that,
Various modifications can be carried out without departing from the scope of the disclosure.
Therefore, the scope of the present disclosure should not be construed as limited to described embodiment, but should be by embodiment institute
Attached requirement and the appended claims determines.
According to the disclosure for inject melted material device, can be with using the Casting Equipment and casting method of the device
Applied to continuous slab casting technique, to improve the quality and productivity of slab.
Claims (24)
1. a kind of device for injecting melted material, described device include：
Raw material feed unit, the raw material feed unit are configured to for being supplied respectively to different the first raw material and the second raw material；
Mixed cell, different described first that the mixed cell is configured to for making to supply from the raw material feed unit are former
Material is mixed with second raw material to generate mixture；
Melting unit, the melting unit are connected to the mixed cell, so that the mixing supplied from the mixed cell
Object melts, to generate melted material, wherein the melting unit has discharge port, and the melted material is via the row
Put port discharge；And
Control unit, described control unit are disposed for by controlling the raw material feed unit, the mixed cell and institute
The operation of melting unit is stated to control the component of the mixture.
2. according to claim 1 for injecting the device of melted material, wherein the raw material feed unit includes：
First raw material feed unit, the first raw material feed unit are configured to for supplying the first raw material；And
Multiple second raw material feed units, the second raw material feed unit are configured to for being supplied respectively to comprising different component
A variety of second raw materials.
3. the device according to claim 2 for injecting melted material, wherein the first raw material feed unit packet
It includes：
First storage unit, first storage unit are configured to for storing first raw material wherein；
First dispatch tube, first dispatch tube is for first storage unit to be connected to the mixed cell；And
First feeder, first feeder are attached at least one in first storage unit and first dispatch tube
Person, to adjust the discharge capacity of first raw material.
4. the device according to claim 3 for injecting melted material, wherein the second raw material feed unit is respectively
Including：
Second storage unit, second storage unit are configured to for each in wherein storing a variety of second raw materials
The second raw material of kind；
Second dispatch tube, second dispatch tube be configured to for by each of multiple described second storage units with it is described
Mixed cell is connected to；And
Second feeder, second feeder are attached at least one in second storage unit and second dispatch tube
Person, to adjust the discharge capacity of each second raw material.
5. according to claim 4 for injecting the device of melted material, wherein the mixed cell includes：
Mixing vessel, the mixing vessel are connected to first supply pipe and second supply pipe；
Blender, the blender are arranged in the mixing vessel, for making first raw material and second raw material
Mixing；And
Third dispatch tube, the third dispatch tube are used to transmit in the mixture of first raw material and second raw material
To the melting unit.
6. the device according to claim 4 for injecting melted material, wherein the mixed cell includes being supplied with first
To the mixing vessel that pipe and the second supply pipe are connected to,
Wherein, the mixing vessel is rotatable.
7. according to claim 6 for injecting the device of melted material, wherein the melting unit includes：
Smelting furnace defines melting space in the smelting furnace, and the melting space for receiving first original wherein
Material and second raw material；
Heat source feed unit, the heat source feed unit are arranged in the side of the smelting furnace, to be supplied to the melting space
Heat source.
8. according to claim 7 for injecting the device of melted material, wherein the heat source feed unit use etc. from
Daughter is as the heat source.
9. the device according to claim 8 for injecting melted material, wherein described control unit is configured to based on defeated
Enter signal to determine whether to inject second raw material.
10. a kind of Casting Equipment, including：
Mold, the mold is for receiving molten steel and the molten steel being made tentatively to solidify；
It is configured to the device for being injected into molten mold flux in the mold；
Measuring unit, the measuring unit are configured to the temperature for measuring the mold and described in being injected into the mold
At least one of component of molten mold flux；And
Control unit, described control unit are disposed for controlling described device based on the measurement result from the measuring unit
Operation, to change to be injected into the component of the molten mold flux in the mold.
11. Casting Equipment according to claim 10, wherein described device includes：
First raw material feed unit, the first raw material feed unit are configured to for supplying main protection slag；
Second raw material feed unit, the second raw material feed unit are configured to for supplying additive；
Mixed cell, the mixed cell are configured to for making respectively from the first raw material feed unit and second raw material
The main protection slag of feed unit supply and additive mixing, to generate mixture；And
Melting unit, the melting unit are configured to molten to generate for melting the mixture supplied from the mixed cell
Melt covering slag, and is configured to for the molten mold flux to be injected into the mold.
12. Casting Equipment according to claim 11, wherein the second raw material feed unit is individually stored wherein
A variety of additives,
Wherein, second feed unit selectively feeds the multiple additives to the mixed cell.
13. Casting Equipment according to claim 12, wherein the measuring unit includes being configured to for measuring the mould
The thermometer of the temperature of tool.
14. Casting Equipment according to claim 12, wherein the measuring unit includes：
Probe, the probe structure is at for acquiring the molten mold flux being injected into the mold；
Analytic unit, the analytic unit are disposed for analyzing by the component of the molten mold flux of the probe collection.
15. according to the Casting Equipment described in claim 13 or claim 14, wherein described control unit is configured to using next
Determine whether to input the additive from the measurement result of the measuring unit, and is configured to by being based on the measurement knot
Fruit controls the second raw material feed unit to control the type and input quantity of the additive.
16. a kind of casting method, including：
Prepare main protection slag；
Molten steel is injected into mold；
The main protection slag is melted to generate molten mold flux, and the molten mold flux is injected into the top surface of the molten steel
On；
Block；And
Determine whether to input additive in its as-cast condition during casting based on the slab.
17. casting method according to claim 16, wherein when preparing the main protection slag, prepare the additive.
18. casting method according to claim 17, wherein protected melting the main protection slag with generating the melting
During slag, the main protection slag is made to be consequently flowed together with the additive.
19. casting method according to claim 18, wherein when casting the slab, to the temperature of the mold into
Row measures, to indicate the as-cast condition of the slab,
Wherein, the method includes determining whether to input the additive based on the temperature of the measured mold.
20. casting method according to claim 18, wherein when casting the slab, to being injected into the mold
The component of the molten mold flux analyzed, to indicate the as-cast condition of the slab,
Wherein, the method includes determining whether to input the addition based on the component of the molten mold flux analyzed
Agent.
21. according to the casting method described in claim 19 or claim 20, wherein the method includes：It is added in judgement
After the additive, the main protection slag is set to be mixed with the additive to form mixture, and melt the mixture,
Then the molten mold flux comprising the component after change is injected into the mold.
22. casting method according to claim 21, wherein the method includes：It waits noting when casting the slab
In the case that the grade entered to the molten steel in the mold has changed, the main protection slag is made to be mixed with the additive, melted
Change the mixture, and the molten mold flux comprising the component after change is injected into the mold.
23. casting method according to claim 22 is injected when making the main protection slag be mixed with the additive
The component of additive changed according to the grade of the molten steel.
24. casting method according to claim 22, when making the main protection slag be mixed with the additive, including phase
Injection rate with the additive of component changes according to the grade of the molten steel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0025300 | 2016-03-02 | ||
| KR1020160025300A KR101790001B1 (en) | 2016-03-02 | 2016-03-02 | Melt supply equipment, casting apparatus and casting method |
| PCT/KR2016/013161 WO2017150787A1 (en) | 2016-03-02 | 2016-11-15 | Device for injecting molten material, casting equipment using same, and casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108602115A true CN108602115A (en) | 2018-09-28 |
Family
ID=59743936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680081282.XA Pending CN108602115A (en) | 2016-03-02 | 2016-11-15 | The device of injection melted material, Casting Equipment and casting method with this device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3424617A4 (en) |
| JP (1) | JP2019501027A (en) |
| KR (1) | KR101790001B1 (en) |
| CN (1) | CN108602115A (en) |
| WO (1) | WO2017150787A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751681A (en) * | 2021-09-14 | 2021-12-07 | 鞍钢股份有限公司 | Continuous casting mold flux suitable for high titanium steel |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102156716B1 (en) * | 2018-09-28 | 2020-09-16 | 주식회사 포스코 | Apparatus for casting and method for casting |
| KR102310993B1 (en) | 2020-06-12 | 2021-10-08 | 주식회사 제이피에스 | Apparatus of runner for preventing thermal loss of casting melted material |
| KR20230055788A (en) | 2021-10-19 | 2023-04-26 | 주식회사 제이피에스 | Apparatus of runner for heating of casting melted material through selectively radiating of electromagnetic waves |
| KR20230055789A (en) | 2021-10-19 | 2023-04-26 | 주식회사 제이피에스 | furnace system for heating of casting melted material through selectively radiating of electromagnetic waves |
| CN114260434B (en) * | 2021-12-31 | 2023-07-07 | 湖州永兴特种不锈钢有限公司 | Automatic device of covering slag adds |
| WO2023166506A1 (en) * | 2022-03-01 | 2023-09-07 | Magnus Metal Ltd. | Additive casting deposition system and method |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116367A (en) * | 1975-11-12 | 1978-09-26 | Nippon Steel Corporation | Apparatus for supplying powder to continuous casting mold |
| JPS54114435A (en) * | 1978-02-25 | 1979-09-06 | Sumitomo Metal Ind | Powder supplying apparatus in continuous casting |
| JPS571551A (en) * | 1980-06-06 | 1982-01-06 | Nippon Steel Corp | Equipment for feeding additive in continuous casting |
| EP0101521A1 (en) * | 1982-02-24 | 1984-02-29 | Kawasaki Steel Corporation | Method of controlling continuous casting facility |
| JPS6281252A (en) * | 1985-10-07 | 1987-04-14 | Kawasaki Steel Corp | Continuous casting method |
| JPH01118350A (en) * | 1987-10-29 | 1989-05-10 | Nippon Supingu Kk | Method and device for supplying powder for continuous casting |
| JPH09206576A (en) * | 1996-02-02 | 1997-08-12 | Denki Kagaku Kogyo Kk | Mixer |
| JPH115147A (en) * | 1997-06-12 | 1999-01-12 | Nkk Corp | Method and device for supplying powder in continuous casting |
| CN1072067C (en) * | 1996-04-02 | 2001-10-03 | 曼内斯曼股份公司 | Process for optimising surface quality of continuous castings |
| JP2004306088A (en) * | 2003-04-07 | 2004-11-04 | Nippon Steel Corp | Powder feeding equipment and feeding method for continuous casting |
| JP2009541062A (en) * | 2006-06-23 | 2009-11-26 | ポスコ | Continuous casting apparatus and method using molten mold flux |
| KR20100074904A (en) * | 2008-12-24 | 2010-07-02 | 주식회사 포스코 | Molten mold flux feeding apparatus and molten mold flux feeding method |
| CN101844211A (en) * | 2009-03-23 | 2010-09-29 | 鞍钢股份有限公司 | Method for accurately controlling alkalinity of tundish slag in continuous casting steel casting process |
| KR20140003856A (en) * | 2012-06-29 | 2014-01-10 | 주식회사 포스코 | Melt supply equipment |
| KR20140070037A (en) * | 2012-11-30 | 2014-06-10 | 주식회사 포스코 | Feeding apparatus for mold flux and the continuous casting method using it |
| KR101455534B1 (en) * | 2013-06-27 | 2014-10-28 | 현대제철 주식회사 | Probe device for experiment |
| JP2015186813A (en) * | 2014-03-26 | 2015-10-29 | 新日鐵住金株式会社 | MOLD FLUX FOR CONTINUOUS CASTING OF Al-CONTAINING STEEL AND CONTINUOUS CASTING METHOD |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6228524B2 (en) * | 2013-09-27 | 2017-11-08 | 日新製鋼株式会社 | Continuous casting method |
-
2016
- 2016-03-02 KR KR1020160025300A patent/KR101790001B1/en active IP Right Grant
- 2016-11-15 CN CN201680081282.XA patent/CN108602115A/en active Pending
- 2016-11-15 EP EP16892800.0A patent/EP3424617A4/en not_active Withdrawn
- 2016-11-15 WO PCT/KR2016/013161 patent/WO2017150787A1/en active Application Filing
- 2016-11-15 JP JP2018536136A patent/JP2019501027A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116367A (en) * | 1975-11-12 | 1978-09-26 | Nippon Steel Corporation | Apparatus for supplying powder to continuous casting mold |
| JPS54114435A (en) * | 1978-02-25 | 1979-09-06 | Sumitomo Metal Ind | Powder supplying apparatus in continuous casting |
| JPS571551A (en) * | 1980-06-06 | 1982-01-06 | Nippon Steel Corp | Equipment for feeding additive in continuous casting |
| EP0101521A1 (en) * | 1982-02-24 | 1984-02-29 | Kawasaki Steel Corporation | Method of controlling continuous casting facility |
| JPS6281252A (en) * | 1985-10-07 | 1987-04-14 | Kawasaki Steel Corp | Continuous casting method |
| JPH01118350A (en) * | 1987-10-29 | 1989-05-10 | Nippon Supingu Kk | Method and device for supplying powder for continuous casting |
| JPH09206576A (en) * | 1996-02-02 | 1997-08-12 | Denki Kagaku Kogyo Kk | Mixer |
| CN1072067C (en) * | 1996-04-02 | 2001-10-03 | 曼内斯曼股份公司 | Process for optimising surface quality of continuous castings |
| JPH115147A (en) * | 1997-06-12 | 1999-01-12 | Nkk Corp | Method and device for supplying powder in continuous casting |
| JP2004306088A (en) * | 2003-04-07 | 2004-11-04 | Nippon Steel Corp | Powder feeding equipment and feeding method for continuous casting |
| JP2009541062A (en) * | 2006-06-23 | 2009-11-26 | ポスコ | Continuous casting apparatus and method using molten mold flux |
| KR20100074904A (en) * | 2008-12-24 | 2010-07-02 | 주식회사 포스코 | Molten mold flux feeding apparatus and molten mold flux feeding method |
| CN101844211A (en) * | 2009-03-23 | 2010-09-29 | 鞍钢股份有限公司 | Method for accurately controlling alkalinity of tundish slag in continuous casting steel casting process |
| KR20140003856A (en) * | 2012-06-29 | 2014-01-10 | 주식회사 포스코 | Melt supply equipment |
| KR20140070037A (en) * | 2012-11-30 | 2014-06-10 | 주식회사 포스코 | Feeding apparatus for mold flux and the continuous casting method using it |
| KR101455534B1 (en) * | 2013-06-27 | 2014-10-28 | 현대제철 주식회사 | Probe device for experiment |
| JP2015186813A (en) * | 2014-03-26 | 2015-10-29 | 新日鐵住金株式会社 | MOLD FLUX FOR CONTINUOUS CASTING OF Al-CONTAINING STEEL AND CONTINUOUS CASTING METHOD |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751681A (en) * | 2021-09-14 | 2021-12-07 | 鞍钢股份有限公司 | Continuous casting mold flux suitable for high titanium steel |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3424617A4 (en) | 2019-04-03 |
| KR101790001B1 (en) | 2017-11-20 |
| WO2017150787A1 (en) | 2017-09-08 |
| KR20170102760A (en) | 2017-09-12 |
| JP2019501027A (en) | 2019-01-17 |
| EP3424617A1 (en) | 2019-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108602115A (en) | The device of injection melted material, Casting Equipment and casting method with this device | |
| KR101114422B1 (en) | Molten mold flux feeding apparatus and molten mold flux feeding method | |
| KR20210053913A (en) | System and method for continuous production of gaseous metal powder | |
| CN107208169A (en) | The foaming sedation methods and the manufacture method of clinker product of molten slag | |
| US7618582B2 (en) | Continuous steel production and apparatus | |
| US8828117B2 (en) | Composition and process for improved efficiency in steel making | |
| JP6855806B2 (en) | Continuous casting method and continuous casting equipment for multi-layer slabs | |
| TWI544081B (en) | Hot metal refining method | |
| CN104826985A (en) | Dorma gating manufacturing process | |
| CN207709849U (en) | Cast grain machine | |
| CN104131135A (en) | Vermicularizing core-spun yarn and production process thereof | |
| CN103160635A (en) | Process for producing die steel by utilizing converter continuous casting mode | |
| KR100544422B1 (en) | Method for Manufacturing Molten Steel | |
| JP2003119511A (en) | Method for operating steelmaking furnace during steelmaking process | |
| CN107002154A (en) | The preprocess method of iron liquid | |
| EP3356066B1 (en) | A flux feeding apparatus and flux optimization selection method | |
| KR101665467B1 (en) | Fabrication Method of Ferro Alloy by Thermit Reaction of Oxidation-Reduction | |
| CN114523082B (en) | Manufacturing system for continuous casting process of high-quality special steel | |
| CN108085454A (en) | A kind of arc furnace steelmaking process | |
| KR101598362B1 (en) | Method and apparatus for operating blast furnace | |
| CN116334353B (en) | LF refining method and device | |
| KR20160072299A (en) | Method for refining molten steel | |
| CN104550711A (en) | Process for manufacturing vibrating ring | |
| US20170113270A1 (en) | Melting unit for melting down casting materials and method for producing molten material for castings | |
| Tajik et al. | The influence of placement and sintering time of the steel ladle filler-sand |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180928 |
|
| WD01 | Invention patent application deemed withdrawn after publication |