CN109332625A - A kind of casting method improving stopper rod flow control Al dexidized steel nozzle blocking - Google Patents
A kind of casting method improving stopper rod flow control Al dexidized steel nozzle blocking Download PDFInfo
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- CN109332625A CN109332625A CN201811324962.7A CN201811324962A CN109332625A CN 109332625 A CN109332625 A CN 109332625A CN 201811324962 A CN201811324962 A CN 201811324962A CN 109332625 A CN109332625 A CN 109332625A
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- stopper
- casting
- molten steel
- flow control
- amplitude
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- 239000010959 steel Substances 0.000 title claims abstract description 62
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 238000005266 casting Methods 0.000 title claims abstract description 44
- 230000000903 blocking effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 15
- 244000145845 chattering Species 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 229910052593 corundum Inorganic materials 0.000 abstract description 5
- 239000010813 municipal solid waste Substances 0.000 abstract description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 20
- 229910052786 argon Inorganic materials 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- -1 magnesium aluminate Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- B22D11/18—Controlling or regulating processes or operations for pouring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The present invention relates to a kind of casting methods for improving stopper rod flow control Al dexidized steel nozzle blocking.When stopper rod flow control casting aluminium deoxidation molten steel, opens and pour stage stopper holding stabilization, be conducive to molten steel and flow down；It opens and opens jitter mode after pouring 5min, cause molten steel to form fluctuation, make Al2O3Type impurity is not easy to be adsorbed on mouth of a river inner wall, so as to improve nozzle clogging.It finds after study, with the increase of casting time, the Al of mouth of a river enrichment2O3Field trash increases.Therefore, time early period is being poured, stopper chattering frequency and amplitude are preferably less than normal, pour time later period, should increase stopper chattering frequency and amplitude.Stopper chattering frequency and amplitude are key factors of the invention.It is shown experimentally that, stopper chattering frequency and amplitude are excessive, will lead to molten steel and turbulent flow occurs, liquid level fluctuation of crystallizer is big, causes slag, makes a big impact to slab quality；Stopper chattering frequency and amplitude are too small, should have effect to preventing nozzle blocking from not having.
Description
Technical field
The present invention relates to iron and steel metallurgical industries, improve pouring for stopper rod flow control Al dexidized steel nozzle blocking more particularly, to a kind of
Casting method.
Background technique
Collector nozzle blocking accident is wrapped in frequently encountering in the production process of the continuous casting steel machine of stopper rod flow control, causes to shift to an earlier date
It pours eventually, reduces caster work rate, frequently replacing the mouth of a river will increase production cost.The most serious is the tamper meetings adhered in the mouth of a river
Cause bias current, mould liquid level fluctuation, slab is made to generate surface quality defect.Washing away the tamper peeled off can be rolled into
It is floated in covering slag in or on molten steel, thereby results in slab quality defect.There are mainly two types of situations for the blocking at the mouth of a river: first is that cold steel
Blocking；Second is that the enrichment of the metal oxide of infusibility leads to the blocking at the mouth of a river.The blocking of cold steel is easily solved, as long as adjusting
Temperature keeps standard operation to can avoid in technological operation.Stopper rod flow control causes the heavy difficult point of nozzle blocking to be to solve infusibility
The enrichment of metal oxide lead to the blocking at the mouth of a river.
Research existing many report of the recent domestic about continuous casting sprue dross problem, be summed up it mainly and have with
Lower four kinds of dross types: alumina type dross, calcium aluminate type dross, calcium sulfide type dross and magnesium aluminate spinel type dross.With
The difference of kind, smelting and pouring technology, there is also very big differences for nozzle clogging object, and the dross object of different parts also has
Institute is different.
For nozzle blocking problem, many measures are taken both at home and abroad at present, much good process flow is formd, to solution
Certainly nozzle blocking can provide effective Improving Measurements.It is summed up that there are several types of modes:
1) Ca processing is carried out to molten steel.The Al2O3 being easy to produce in molten steel is mingled with, Ca processing can make dystectic
Al2O3 is converted into the calcium aluminate of low melting point, changes the form that oxide is mingled with, but when Ca processing is containing aluminium high molten steel, such as Ca
Additional amount is insufficient, then can generate dystectic calcium aluminate and easily cause nozzle blocking.
2) secondary oxidation of steel is prevented.Finally contaminated degree depends on secondary oxidation of steel degree to continuous casting billet.It improves
Continuous casting billet cleanliness seeks to reduce interior life and foreign impurity, if not taking good molding casting measure, molten steel is just
It is inevitably contacted with air, causes secondary oxidation, reduce the content for dissolving aluminium in steel, especially production SPHC etc. contains Al
When steel grade, easily there is nozzle clogging problem.
3) improving stopper Argon effect prevents nozzle blocking.Blocking-proof result and steel of the size of stopper argon flow to the mouth of a river
Matter has direct influence.Flow is too small, and blocking-proof result is undesirable；Flow is bigger, and blocking-proof result is better, but excessive argon flow
Will cause Mold surface wave move it is excessive, there is slag or make molten steel be exposed in air occur secondary oxidation phenomena such as.
Therefore, the selection of argon flow should comprehensively consider the two contradictory elements, and best argon flow should guarantee to have good
Blocking-proof result, guarantee not cause adverse effect to steel again.
4) gate structure and optimization mouth of a river material) are improved.Forefathers are concentrated mainly on the mouth of a river to the settling mode of nozzle blocking
In terms of material, structure and field trash Type Control.The present invention starts in terms of stopper Mechanical course, does not additionally increase or change steel
Water field trash does not put forward higher requirements mouth of a river material and causes increased costs.
It is easy to generate Al in Al dexidized steel2O3Type impurity.The type impurity is easy at the mouth of a river rich in casting process
Collection.With the increase of casting time.The amount of inclusions of enrichment increases.The present invention controls stopper chattering frequency and amplitude, causes
Molten steel forms fluctuation, makes Al2O3Type impurity is not easy to be adsorbed on mouth of a river inner wall, so as to improve nozzle clogging.
Summary of the invention
In order to solve the above problem, the present invention provides a kind of casting method for improving stopper rod flow control Al dexidized steel nozzle blocking,
This method can effectively improve nozzle blocking situation in molten steel casting process.
The technical solution adopted by the present invention is that: a kind of casting method improving stopper rod flow control Al dexidized steel nozzle blocking, packet
Include following steps:
1), ladle enters rotary column, and long nozzle is installed in place, molten steel through long nozzle enter in wrap；
2), middle inclusion quantity is 60t, when Baogang's water reaches 45t in the middle, promotes stopper, and stopper is made to reach normal casting opening
Degree (opening degree refers to that stopper opens the ratio that area accounts for mouth of a river inner circle area, is characterized in production with the height that stopper lifts),
Molten steel flows into crystallizer；
3) liquid level in crystallizer, is controlled, slab of casting；
4) it, opens and pours in 5min, molten steel is in turbulent condition, and stopper jitter mode is not turned at this time；
5) stopper jitter mode, is opened after 5min；
6) it, casts and increases stopper chattering frequency after three furnace molten steel, pulling rate is not until the casting of entire heat is completed, in casting process
Become.
Preferably, casting opening degree range is 60~80% in step 2).
Preferably, in step 3), molten steel is 100 ± 5mm away from copper plate of crystallizer distance suitable for reading, casting pulling rate is 1~
1.2m/min, slab thickness 230mm.
Preferably, stopper shaking way is upper and lower vertical hunting in step 5), chattering frequency is 1~1.5HZ, shake
Amplitude is 1~1.5mm.
Preferably, stopper shaking way is upper and lower vertical hunting in step 6), stopper chattering frequency is 2~2.5HZ,
Jitter amplitude is 1.5~2mm.
The beneficial effect that the present invention obtains is: when stopper rod flow control casting aluminium deoxidation molten steel, opens and pours stage stopper holding stabilization,
Be conducive to molten steel to flow down；It opens and opens jitter mode after pouring 5min, cause molten steel to form fluctuation, make Al2O3Type impurity is not easy to inhale
It is attached to mouth of a river inner wall, so as to improve nozzle clogging.
It finds after study, with the increase of casting time, the Al of mouth of a river enrichment2O3Field trash increases.Therefore, it is pouring time
Early period, stopper chattering frequency and amplitude are preferably less than normal, pour time later period, should increase stopper chattering frequency and amplitude.Stopper chattering frequency
It is key factor of the invention with amplitude.It is shown experimentally that, stopper chattering frequency and amplitude are excessive, and it is disorderly to will lead to molten steel generation
Stream, liquid level fluctuation of crystallizer is big, causes slag, make a big impact to slab quality, when stopper chattering frequency be more than 4HZ or
When stopper jitter amplitude is more than 3mm, larger fluctuation can occur according at mold liquid level, slab quality is impacted.Stopper is trembled
Dynamic frequency and amplitude are too small, should have effect to preventing nozzle blocking from not having.Meanwhile stopper is trembled in the control of stopper argon flow
Dynamic frequency and amplitude also have larger impact, should consider that two aspects influence MOLTEN STEEL FLOW and make to the inhibition of field trash enrichment simultaneously
With.
Detailed description of the invention
Fig. 1 is packet schematic diagram in stopper rod flow control；
Appended drawing reference: 1, stopper mechanical arm；2, intermediate containment wall；3, stopper；4, molten steel；5, filling pipe end；6, slide plate；7, it is lauched
Mouthful.
Specific embodiment
The present invention will be further explained in the following with reference to the drawings and specific embodiments.
A kind of casting method improving stopper rod flow control Al dexidized steel nozzle blocking, comprising the following steps:
1), ladle enters rotary column, and long nozzle is installed in place, molten steel through long nozzle enter in wrap；
2), middle inclusion quantity is 60t, when Baogang's water reaches 45t in the middle, promotes stopper, and stopper is made to reach normal casting opening
Degree (opening degree refers to that stopper opens the ratio that area accounts for mouth of a river inner circle area, is characterized in production with the height that stopper lifts),
Opening degree range of casting is 60~80%, and molten steel flows into crystallizer；
3) liquid level in crystallizer, is controlled, molten steel is 100 ± 5mm away from copper plate of crystallizer distance suitable for reading, and casting pulling rate is
1~1.2m/min, slab thickness 230mm；
4) it, opens and pours in 5min, molten steel is in turbulent condition, and stopper jitter mode is not turned at this time；
5), after 5min open stopper jitter mode, stopper shaking way be upper and lower vertical hunting, chattering frequency be 1~
1.5HZ, jitter amplitude are 1~1.5mm；
6), increase stopper chattering frequency after three furnace molten steel of casting, stopper shaking way is upper and lower vertical hunting, stopper shake
Frequency is 2~2.5HZ, and jitter amplitude is 1.5~2mm, until the casting of entire heat is completed, pulling rate is constant in casting process.
Implementation through the invention, Al dexidized steel nozzle blocking situation are greatly improved.Following table is to pour under different operating conditions
The comparison of casting situation.
Embodiment one
Middle inclusion quantity is 60t, when stopper argon blowing rate is 5L/min, opens and pours stopper jitter mode in 5min and be not turned on.
Stopper jitter mode is opened after 5min, shaking way is upper and lower vertical hunting.Stopper chattering frequency is 1HZ, and jitter amplitude is
1mm.It is 2HZ that stopper chattering frequency after three furnace molten steel of casting, which increases, and jitter amplitude is that 1mm casts to entire heat and completes.
Embodiment two
Middle inclusion quantity is 60t, when stopper argon blowing rate is 5L/min, opens and pours stopper jitter mode in 5min and be not turned on.
Stopper jitter mode is opened after 5min, shaking way is upper and lower vertical hunting.Stopper chattering frequency is 1.5HZ, and jitter amplitude is
1.5mm.It is 2.5HZ that stopper chattering frequency after 3 furnace molten steel of casting, which increases, and jitter amplitude is that 2mm casts to entire heat and completes.
Embodiment three
Middle inclusion quantity is 60t, when stopper argon blowing rate is 10L/min, opens and pours stopper jitter mode in 5min and be not turned on.
Stopper jitter mode is opened after 5min, shaking way is upper and lower vertical hunting.Stopper chattering frequency is 1.2HZ, and jitter amplitude is
1.5mm.It is 2HZ that stopper chattering frequency after three furnace molten steel of casting, which increases, and jitter amplitude is that 2mm casts to entire heat and completes.
Example IV
Middle inclusion quantity is 60t, when stopper argon blowing rate is 10L/min, opens and pours stopper jitter mode in 5min and be not turned on.
Stopper jitter mode is opened after 5min, shaking way is upper and lower vertical hunting.Stopper chattering frequency is 1HZ, and jitter amplitude is
1.5mm.It is 2.5HZ that stopper chattering frequency after 3 furnace molten steel of casting, which increases, and jitter amplitude is that 2mm casts to entire heat and completes.
Basic principle and key structural feature of the invention has been shown and described above.The present invention is not by the limit of examples detailed above
System, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It both falls in the range of claimed invention.The claimed scope of the invention is by appended claims and its equivalent
It defines.
Claims (5)
1. a kind of casting method for improving stopper rod flow control Al dexidized steel nozzle blocking, comprising the following steps:
1), ladle enters rotary column, and long nozzle is installed in place, molten steel through long nozzle enter in wrap；
2), middle inclusion quantity is 60t, when Baogang's water reaches 45t in the middle, promotes stopper, and stopper is made to reach normal casting opening degree, steel
Water flows into crystallizer；
3) liquid level in crystallizer, is controlled, slab of casting；
4) it, opens and pours in 5min, molten steel is in turbulent condition, and stopper jitter mode is not turned at this time；
5) stopper jitter mode, is opened after 5min；
6), increase stopper chattering frequency after three furnace molten steel of casting, until the casting of entire heat is completed, pulling rate is constant in casting process.
2. the casting method according to claim 1 for improving stopper rod flow control Al dexidized steel nozzle blocking, it is characterised in that: step
It is rapid 2) in, casting opening degree range be 60~80%.
3. the casting method according to claim 1 for improving stopper rod flow control Al dexidized steel nozzle blocking, it is characterised in that: step
It is rapid 3) in, molten steel is 100 ± 5mm away from copper plate of crystallizer distance suitable for reading, and casting pulling rate is 1~1.2m/min, and slab thickness is
230mm。
4. the casting method according to claim 1 for improving stopper rod flow control Al dexidized steel nozzle blocking, it is characterised in that: step
It is rapid 5) in, stopper shaking way be upper and lower vertical hunting, chattering frequency be 1~1.5HZ, jitter amplitude be 1~1.5mm.
5. the casting method according to claim 1 for improving stopper rod flow control Al dexidized steel nozzle blocking, it is characterised in that: step
It is rapid 6) in, stopper shaking way be upper and lower vertical hunting, stopper chattering frequency be 2~2.5HZ, jitter amplitude be 1.5~2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324962.7A CN109332625B (en) | 2018-11-08 | 2018-11-08 | Casting method for improving stopper rod flow control Al deoxidized steel nozzle blockage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324962.7A CN109332625B (en) | 2018-11-08 | 2018-11-08 | Casting method for improving stopper rod flow control Al deoxidized steel nozzle blockage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332625A true CN109332625A (en) | 2019-02-15 |
| CN109332625B CN109332625B (en) | 2021-04-27 |
Family
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134587A (en) * | 2020-01-17 | 2021-07-20 | 宝山钢铁股份有限公司 | Method for judging water gap blockage and dissolution loss through stopper rod opening degree variation trend |
| CN114264786A (en) * | 2021-11-29 | 2022-04-01 | 马鞍山钢铁股份有限公司 | Method and system for quality evaluation of cast slab based on continuous casting tundish submerged nozzle nodules falling off nodules |
| CN114346191A (en) * | 2021-12-08 | 2022-04-15 | 鞍钢股份有限公司 | A method to prevent the heavy-slab steel breakout forecasting system from re-alarming during quick nozzle change of thick slab |
| CN114619003A (en) * | 2022-03-25 | 2022-06-14 | 中冶南方连铸技术工程有限责任公司 | Small square billet continuous casting process for improving aluminum-containing steel nodulation |
| CN115369215A (en) * | 2022-07-29 | 2022-11-22 | 邯郸钢铁集团有限责任公司 | Method for reducing inclusion cracking defect in large-thinning-amount deep drawing forming IF steel |
| CN116944449A (en) * | 2023-07-20 | 2023-10-27 | 中冶南方连铸技术工程有限责任公司 | A method to get rid of the bonding between the plug head and the nozzle during the automatic pouring process |
| CN117047093A (en) * | 2023-08-18 | 2023-11-14 | 重庆钢铁股份有限公司 | A method for judging and dealing with the clogging degree of the ladle nozzle in slab continuous casting |
| CN117161336A (en) * | 2022-05-24 | 2023-12-05 | 宝山钢铁股份有限公司 | A method for detecting nodulation of plug rods during continuous casting |
| CN120366635A (en) * | 2025-06-26 | 2025-07-25 | 江苏省沙钢钢铁研究院有限公司 | Small square billet sulfur-containing titanium-containing welding wire steel and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6293062A (en) * | 1985-10-17 | 1987-04-28 | Nisshin Steel Co Ltd | Preventing method for adhesion of inclusion to tandish stopper head and nozzle |
| JPS62263858A (en) * | 1986-05-12 | 1987-11-16 | Kobe Steel Ltd | Control system for driving device of tundish stopper |
| JPH03174959A (en) * | 1989-12-04 | 1991-07-30 | Nippon Steel Corp | Method for controlling mold level |
| JPH1110301A (en) * | 1997-06-27 | 1999-01-19 | Nippon Steel Corp | High precision flow control stopper device and continuous casting method and device using the same |
| JP2002254146A (en) * | 2001-03-02 | 2002-09-10 | Nippon Steel Corp | Continuous casting equipment, continuous casting method |
| KR20130002509A (en) * | 2011-06-29 | 2013-01-08 | 현대제철 주식회사 | Apparatus for preventing inclusion from adhering and producing on stopper of tundish |
| CN102985196A (en) * | 2010-03-19 | 2013-03-20 | Sms西马格股份公司 | Device and method for closing an outflow opening of a metallurgical vessel |
| CN105710328A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | 30MnSi continuous casting process |
| CN106955984A (en) * | 2016-01-08 | 2017-07-18 | 宝山钢铁股份有限公司 | Handle the autocontrol method and system of continuous casting channel blockage |
-
2018
- 2018-11-08 CN CN201811324962.7A patent/CN109332625B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6293062A (en) * | 1985-10-17 | 1987-04-28 | Nisshin Steel Co Ltd | Preventing method for adhesion of inclusion to tandish stopper head and nozzle |
| JPS62263858A (en) * | 1986-05-12 | 1987-11-16 | Kobe Steel Ltd | Control system for driving device of tundish stopper |
| JPH03174959A (en) * | 1989-12-04 | 1991-07-30 | Nippon Steel Corp | Method for controlling mold level |
| JPH1110301A (en) * | 1997-06-27 | 1999-01-19 | Nippon Steel Corp | High precision flow control stopper device and continuous casting method and device using the same |
| JP2002254146A (en) * | 2001-03-02 | 2002-09-10 | Nippon Steel Corp | Continuous casting equipment, continuous casting method |
| CN102985196A (en) * | 2010-03-19 | 2013-03-20 | Sms西马格股份公司 | Device and method for closing an outflow opening of a metallurgical vessel |
| KR20130002509A (en) * | 2011-06-29 | 2013-01-08 | 현대제철 주식회사 | Apparatus for preventing inclusion from adhering and producing on stopper of tundish |
| CN105710328A (en) * | 2014-12-05 | 2016-06-29 | 重庆永林机械设备有限公司 | 30MnSi continuous casting process |
| CN106955984A (en) * | 2016-01-08 | 2017-07-18 | 宝山钢铁股份有限公司 | Handle the autocontrol method and system of continuous casting channel blockage |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134587B (en) * | 2020-01-17 | 2022-11-18 | 宝山钢铁股份有限公司 | Method for judging water gap blockage and dissolution loss through stopper rod opening degree variation trend |
| CN113134587A (en) * | 2020-01-17 | 2021-07-20 | 宝山钢铁股份有限公司 | Method for judging water gap blockage and dissolution loss through stopper rod opening degree variation trend |
| CN114264786A (en) * | 2021-11-29 | 2022-04-01 | 马鞍山钢铁股份有限公司 | Method and system for quality evaluation of cast slab based on continuous casting tundish submerged nozzle nodules falling off nodules |
| CN114264786B (en) * | 2021-11-29 | 2024-01-12 | 马鞍山钢铁股份有限公司 | Method and system for quality evaluation of cast slabs based on nodules falling off the immersed nozzle of the continuous casting tundish |
| CN114346191A (en) * | 2021-12-08 | 2022-04-15 | 鞍钢股份有限公司 | A method to prevent the heavy-slab steel breakout forecasting system from re-alarming during quick nozzle change of thick slab |
| CN114346191B (en) * | 2021-12-08 | 2023-08-18 | 鞍钢股份有限公司 | Method for preventing heavy alarm of steel leakage forecasting system during quick water gap change of thick slab |
| CN114619003A (en) * | 2022-03-25 | 2022-06-14 | 中冶南方连铸技术工程有限责任公司 | Small square billet continuous casting process for improving aluminum-containing steel nodulation |
| CN117161336A (en) * | 2022-05-24 | 2023-12-05 | 宝山钢铁股份有限公司 | A method for detecting nodulation of plug rods during continuous casting |
| CN115369215A (en) * | 2022-07-29 | 2022-11-22 | 邯郸钢铁集团有限责任公司 | Method for reducing inclusion cracking defect in large-thinning-amount deep drawing forming IF steel |
| CN115369215B (en) * | 2022-07-29 | 2024-05-14 | 邯郸钢铁集团有限责任公司 | Method for reducing inclusion cracking defects in deep drawing forming IF steel with large thinning amount |
| CN116944449B (en) * | 2023-07-20 | 2025-09-26 | 中冶南方连铸技术工程有限责任公司 | A method for eliminating the adhesion between the stopper rod head and the nozzle during the automatic pouring process |
| CN116944449A (en) * | 2023-07-20 | 2023-10-27 | 中冶南方连铸技术工程有限责任公司 | A method to get rid of the bonding between the plug head and the nozzle during the automatic pouring process |
| CN117047093A (en) * | 2023-08-18 | 2023-11-14 | 重庆钢铁股份有限公司 | A method for judging and dealing with the clogging degree of the ladle nozzle in slab continuous casting |
| CN117047093B (en) * | 2023-08-18 | 2025-10-31 | 重庆钢铁股份有限公司 | Judgment and disposal method for blocking degree of ladle nozzle in slab continuous casting |
| CN120366635A (en) * | 2025-06-26 | 2025-07-25 | 江苏省沙钢钢铁研究院有限公司 | Small square billet sulfur-containing titanium-containing welding wire steel and preparation method thereof |
| CN120366635B (en) * | 2025-06-26 | 2025-12-16 | 江苏省沙钢钢铁研究院有限公司 | A small square billet containing sulfur and titanium welding wire and its preparation method |
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