CN105964998A - Method and device for filling continuous casting tundish with argon - Google Patents
Method and device for filling continuous casting tundish with argon Download PDFInfo
- Publication number
- CN105964998A CN105964998A CN201610341800.9A CN201610341800A CN105964998A CN 105964998 A CN105964998 A CN 105964998A CN 201610341800 A CN201610341800 A CN 201610341800A CN 105964998 A CN105964998 A CN 105964998A
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- Prior art keywords
- argon
- hole
- closure mechanism
- tundish
- sheet metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/58—Pouring-nozzles with gas injecting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a method and a device for filling a continuous casting tundish with argon, and belongs to the technical field of steelmaking and continuous casting. The device for filling the continuous casting tundish with the argon comprises a first closed mechanism, a second closed mechanism and an argon filling pipeline, wherein the first closed mechanism is arranged in the tundish and positioned between a first stick plug hole and a pouring hole of a tundish cover; a plurality of holes are formed in the lower part of the first closed mechanism; the second closed mechanism is arranged in the tundish and positioned between a second stick plug hole and the pouring hole of the tundish cover; a plurality of holes are formed in the lower part of the second closed mechanism; the argon filling pipeline is arranged in the tundish cover; and a plurality of argon blowing openings are formed in the argon filling pipeline. According to the method and the device for filling the continuous casting tundish with the argon, the blowing-in amount of the argon is reduced, the argon filling efficiency is improved, and the intake amount of external air is reduced; and furthermore, the rated aim of reducing secondary oxidization of molten steel is fulfilled, so that the comprehensive control effect for the first slab quality is better.
Description
Technical field
The present invention relates to steel-making continuous casting technical field, particularly to a kind of method of continuous casting production argon filling
And device.
Background technology
Tundish is the intermediate receptacle during metallurgy industry continuous casting produces between ladle and crystallizer.In centre
Unwrapping before watering, be filled with air in tundish, head stove molten steel secondary oxidation in casting process is serious,
Affect the cleanliness factor of strand, easily cause a base, the 2nd block of slab of head stove even the 3rd block of plate of head stove
It is higher that the coil of strip that base is rolled occurs that surface is mingled with probability.The cleaning to unsteady statecalculation slab of certain steel mill
Degree has carried out sample analysis, finds that opening total oxygen content value when watering is 1.88 times of omnidistance meansigma methods, protect
The stability of card product quality, it is necessary to the continuous casting process of continuous casting A-stage is optimized.In order to carry
The cleanliness factor of high head base, the general operation using tundish to seal argon filling, the atmosphere in tundish is entered
Row inert gas replacement so that oxygen content ＜ 0.1% in tundish.
The quality of tundish argon filling effect depends on the sealing of tundish, currently used tundish bag
Lid is typically recessed stopper hole, baking hole and plug hole, and wherein stopper hole is owing to there being the existence of stopper device,
Space is less, and sealing is preferable；Baking hole is little due to its diameter dimension, generally can use fire-resistant
Brick covers and seals；And plug hole is big due to its diameter, and changes long nozzle in packet procedures and need to move
Dynamic, therefore, it is difficult to it is sealed, thus cause a large amount of air-breathing of molten steel, and then molten steel secondary oxidation,
Finally affect slab quality.
Summary of the invention
The present invention provides the method and device of a kind of continuous casting production argon filling, solves or part solves
In prior art, plug hole is big due to its diameter, and changes long nozzle in packet procedures and needs mobile, therefore
It is difficult to it is sealed, thus causes a large amount of air-breathing of molten steel, and then molten steel secondary oxidation, final shadow
Ring the technical problem of slab quality.
For solving above-mentioned technical problem, a kind of method that the invention provides continuous casting production argon filling includes
Following steps: before starting cast, arrange the first closure mechanism and second airtight in described tundish
Mechanism, described first closure mechanism is arranged between the first stopper hole and the plug hole of pouring basket lid, institute
State between the second stopper hole and the plug hole that the second closure mechanism is arranged on described pouring basket lid, described
One closure mechanism, described second closure mechanism and pouring basket lid form an accommodation space；Described first
If dry hole is offered in the lower section of closure mechanism and described second closure mechanism；Arrange in described pouring basket lid
Argon filling pipeline, described argon filling pipeline is provided with several argon blowing holes；Described argon blowing hole is arranged on described
Above accommodation space, described accommodation space carrying out slow Argon, the argon in described accommodation space leads to
If the lower section crossing described first closure mechanism and described second closure mechanism is offered dry hole and is entered described centre
Part beyond the interior accommodation space of bag, stablizes until described centre unwraps to water.
Further, described first closure mechanism includes that the first sheet metal, described first sheet metal are arranged on
In described tundish, described first sheet metal is arranged on the first stopper hole and cast of described pouring basket lid
Between hole；Described second closure mechanism include the second sheet metal, described second sheet metal be arranged on described in
Between bag in, described second sheet metal is arranged between the second stopper hole and the plug hole of described pouring basket lid.
Further, described first sheet metal and described second steel-sheet size and described tundish
Size matches.
Further, if offering dry hole below described first sheet metal and described second steel-sheet.
Further, described argon filling pipeline of arranging on described pouring basket lid, the setting of described argon filling pipeline
Several argon blowing holes are had to include: the number of described argon blowing hole is no less than three.
Further, described described argon blowing hole is arranged on above described accommodation space, to described accommodating
Space carries out slow Argon and includes: the argon flow amount being filled with in described accommodation space is described accommodation space
More than three times of volume.
Based on identical inventive concept, the present invention also provides for the device of a kind of continuous casting production argon filling, institute
State tundish and be provided above pouring basket lid, described pouring basket lid offers the first stopper hole, second
Stopper hole and plug hole；The device of described argon filling includes: the first closure mechanism, is arranged on described centre
In bag, described first closure mechanism is arranged between the first stopper hole and the plug hole of described pouring basket lid,
If offering dry hole below described first closure mechanism；Second closure mechanism, is arranged on described tundish
In, described second closure mechanism is arranged between the second stopper hole and the plug hole of described pouring basket lid,
If offering dry hole below described second closure mechanism；Argon filling pipeline, is arranged in described pouring basket lid,
Described argon filling pipeline is provided with several argon blowing holes；Wherein, described first closure mechanism, described second
Closure mechanism and pouring basket lid form an accommodation space, and described argon blowing hole is arranged on described accommodation space
Side, carries out slow Argon to described accommodation space, and the argon in described accommodation space passes through described first
If dry hole entrance is offered in closure mechanism and the lower section of described second closure mechanism, described tundish content is empty
Part beyond between, stablizes until described centre unwraps to water.
Further, described first closure mechanism includes that the first sheet metal, described first sheet metal are arranged on
In described tundish, described first sheet metal is arranged on the first stopper hole and cast of described pouring basket lid
Between hole, if offering dry hole below described first steel-sheet, described first steel-sheet size with
The size of described tundish matches；Described second closure mechanism includes the second sheet metal, described second thin
Steel plate is arranged in described tundish, and described second sheet metal is arranged on the second plug of described pouring basket lid
Between rod hole and plug hole, if offering dry hole below described second steel-sheet, described second thin steel
The size of plate matches with the size of described tundish.
Further, the number of described argon blowing hole is no less than three.
Further, the argon flow amount being filled with in described accommodation space is the three of described accommodation space volume
More than Bei.
The method of the continuous casting production argon filling that the present invention provides, before starting cast, is arranged in tundish
First closure mechanism and the second closure mechanism, the first closure mechanism is arranged on the first stopper of pouring basket lid
Between hole and plug hole, the second closure mechanism be arranged on the second stopper hole of pouring basket lid and plug hole it
Between, the first closure mechanism, the second closure mechanism and pouring basket lid form an accommodation space, it is ensured that hold
Sealing between being empty, if offering dry hole in the lower section of the first closure mechanism and the second closure mechanism,
Arranging argon filling pipeline in pouring basket lid, argon filling pipeline is provided with several argon blowing holes, is arranged by argon blowing hole
Above accommodation space, accommodation space is carried out slow Argon, use multiple branch circuit, the mode of low discharge,
Not only reduce the amount of being blown into of argon, improve the efficiency of argon filling, it is also possible to reduce the suction volume of outside air,
Reaching to reduce the set objective of secondary oxidation of steel, the argon in accommodation space passes through the first closure mechanism
If offering dry hole with the lower section of the second closure mechanism to enter in tundish the part beyond accommodation space, directly
To middle unwrap water stable so as to get quality of primary blank Comprehensive Control better.
Accompanying drawing explanation
The schematic flow sheet of the method for the continuous casting production argon filling that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the tundish cover that Fig. 2 provides for the embodiment of the present invention；
The structural representation of the tundish that Fig. 3 provides for the embodiment of the present invention；
The structural representation of the first closure mechanism that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
Seeing Fig. 1, the method for a kind of continuous casting production argon filling that the embodiment of the present invention provides includes following
Step:
Step 1, before starting cast, arranges the first closure mechanism 6 and the in described tundish 5
Two closure mechanisms 7, described first closure mechanism 6 be arranged on the first stopper hole 3 of pouring basket lid 1 with
Between plug hole 2, described second closure mechanism 7 is arranged on the second stopper hole of described pouring basket lid 1
Between 4 and plug hole 2, described first closure mechanism 6, described second closure mechanism 7 and pouring basket lid
1 forms an accommodation space.
Step 2, if offering in the lower section of described first closure mechanism 6 with described second closure mechanism 7
Dry hole.
Step 3, arranges argon filling pipeline, if described argon filling pipeline is provided with in described pouring basket lid 1
Dry argon blowing hole.
Step 4, is arranged on described argon blowing hole above described accommodation space, enters described accommodation space
The slow Argon of row, the argon in described accommodation space is by described first closure mechanism 6 and described second
If the lower section of closure mechanism 7 is offered dry hole and is entered in described tundish 5 part beyond accommodation space,
Stablize until described tundish 5 is opened to water.
First closure mechanism 6 and the structure of second closure mechanism 7 is discussed in detail.
Described first closure mechanism 6 includes the first sheet metal 6-1.Described first sheet metal 6-1 fixes
It is arranged in described tundish 5.Specifically, in the present embodiment, described first sheet metal 6-1
It is bolted and is arranged in described tundish 5, in other embodiments, described first thin steel
Plate 6-1 can be otherwise in tundish 5 as described in welding etc. is fixedly installed on.Described first thin
Steel plate 6-1 is arranged between the first stopper hole 3 and the plug hole 2 of described pouring basket lid 1.
Described second closure mechanism 7 includes the second sheet metal 7-1.Described second sheet metal 7-1 fixes
It is arranged in described tundish 5.Specifically, in the present embodiment, described second sheet metal 7-1
It is bolted and is arranged in described tundish 5, in other embodiments, described second thin steel
Plate 7-1 can be otherwise in tundish 5 as described in welding etc. is fixedly installed on.Described second thin
Steel plate 7-1 is arranged between the second stopper hole 4 and the plug hole 2 of described pouring basket lid 1.
The size of described first sheet metal 6-1 and described second sheet metal 7-1 and described tundish 5
Size matches.
If the lower section of described first sheet metal 6-1 and described second sheet metal 7-1 offers dry hole, just
Enter in described tundish 5 part beyond accommodation space in argon, make argon with in tundish 5
Atmosphere is sufficiently displaced from.
Step 3 is discussed in detail.
Described layout argon filling pipeline on described pouring basket lid, described argon filling pipeline is provided with several and blows
Argon mouth includes:
The number of described argon blowing hole is no less than three, forms multiple branch circuit form.
Step 4 is discussed in detail.
Described described argon blowing hole is arranged on above described accommodation space, described accommodation space is delayed
Slow Argon includes: the argon flow amount being filled with in described accommodation space is three times of described accommodation space volume
Above, sufficiently can replace with the atmosphere in described tundish 5, make argon be full of tundish.
Seeing Fig. 2-4, based on identical inventive concept, the present invention also provides for a kind of continuous casting production and fills
The device of argon, described tundish 5 is provided above pouring basket lid 1, described pouring basket lid 1 is offered
There are the 3, second stopper hole 4, the first stopper hole and plug hole 2；It is characterized in that, the device of described argon filling
Including: the first closure mechanism the 6, second closure mechanism 7 and argon filling pipeline.
Described first closure mechanism 6 is arranged in described tundish 5, and described first closure mechanism 6 sets
Put between the first stopper hole 3 and the plug hole 2 of described pouring basket lid 1, described first closure mechanism
If offering dry hole below 6.
Described second closure mechanism 7 is arranged in described tundish 5, and described second closure mechanism 7 sets
Put between the second stopper hole 4 and the plug hole 2 of described pouring basket lid 1, described second closure mechanism
If offering dry hole below 7.
Described argon filling pipeline is arranged in described pouring basket lid 1, and described argon filling pipeline is provided with several
Argon blowing hole.
Wherein, described first closure mechanism 6, described second closure mechanism 7 are formed with pouring basket lid 1
One accommodation space, described argon blowing hole is arranged on above described accommodation space, carries out described accommodation space
Slowly Argon, the argon in described accommodation space is second close with described by described first closure mechanism 6
If the lower section closing mechanism 7 is offered dry hole and is entered in described tundish 5 part beyond accommodation space, directly
Open to described tundish 5 to water and stablize.
First closure mechanism and second closure mechanism are discussed in detail.
Described first closure mechanism 6 includes the first sheet metal 6-1.Described first sheet metal 6-1 fixes
It is arranged in described tundish 5.Specifically, in the present embodiment, described first sheet metal 6-1
It is bolted and is arranged in described tundish 5, in other embodiments, described first thin steel
Plate 6-1 can be otherwise in tundish 5 as described in welding etc. is fixedly installed on.Described first thin
Steel plate 6-1 is arranged between the first stopper hole 3 and the plug hole 2 of described pouring basket lid 1, and described
If the lower section of a sheet metal 6-1 offers dry hole, it is simple to argon enters described tundish 5 content and is empty
Part beyond between, makes argon be sufficiently displaced from the atmosphere in tundish 5.Described first sheet metal 6-1
The size of size and described tundish 5 match.
Described second closure mechanism 7 includes the second sheet metal 7-1.Described second sheet metal 7-1 is arranged
In described tundish 5.Specifically, in the present embodiment, described second sheet metal 7-1 passes through
Bolt is fixedly installed in described tundish 5, in other embodiments, and described second sheet metal 7-1
Can be otherwise in tundish 5 as described in welding etc. is fixedly installed on.Described second sheet metal 7-1
It is arranged between the second stopper hole 4 and the plug hole 2 of described pouring basket lid 5, described second sheet metal
If the lower section of 7-1 offers dry hole, it is simple in the argon described tundish 5 of entrance beyond accommodation space
Part, makes argon be sufficiently displaced from the atmosphere in tundish 5.The size of described second sheet metal 7-1
Match with the size of described tundish 5.
The structure of argon blowing hole is discussed in detail.
The number of described argon blowing hole is no less than three, forms multiple branch circuit form.
Accommodation space in argon filling situation is discussed in detail.
The argon flow amount being filled with in described accommodation space is more than three times of described accommodation space volume, can
Replace with the atmosphere in sufficient and described tundish 5, make argon be full of tundish.
The embodiment of the present invention is introduced, below from the using method of the embodiment of the present invention in order to clearer
Introduced.
The first sheet metal 6-1 is inserted between plug hole 2 and the first stopper hole 3 of pouring basket lid 1,
Inserting the first sheet metal 7-1 between plug hole 2 and the second stopper hole 4 of pouring basket lid 1, first is thin
The size of steel plate 6-1 and the second sheet metal 7-1 matches with the size of tundish 5.First sheet metal
6-1 and the second sheet metal 7-1 and pouring basket lid 1 can form an accommodation space, and accommodation space is relative
Airtight, it is ensured that the sealing of the accommodation space at plug hole 2, the volume of accommodation space is designated as V.
First sheet metal 6-1 and the second sheet metal 7-1 needs to bore some apertures, at the first sheet metal before inserting
The middle and lower part of 6-1 and the second sheet metal 7-1 is 3 row's random distributions, it is simple to argon enters described centre
Wrap the part beyond accommodation space in 5, make argon be sufficiently displaced from the atmosphere in tundish 5.In
Between arrange argon filling pipeline in clad 1,4 articles of argon blowing holes of argon filling pipeline are arranged on pouring basket lid 1 the
In the range of between one sheet metal 6-1 and the second sheet metal 7-1, use multiple branch circuit, low discharge former
Then, to slowly implementing Argon in tundish, not only reduce the amount of being blown into of argon, improve the efficiency of argon filling,
The suction volume of outside air can also be reduced, reach to reduce the set objective of secondary oxidation of steel, fill
The total argon flow amount entered is 3.5*V, makes argon be sufficiently displaced from the atmosphere in tundish 5, until in
Between unwrap water stable so as to get quality of primary blank Comprehensive Control better.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme
And unrestricted, although the present invention being described in detail with reference to example, the ordinary skill people of this area
Member should be appreciated that and can modify technical scheme or equivalent, without deviating from
The spirit and scope of technical solution of the present invention, it all should be contained in the middle of scope of the presently claimed invention.
Claims (10)
1. the method for a continuous casting production argon filling, it is characterised in that comprise the following steps:
Before starting cast, the first closure mechanism (6) and second is set in described tundish (5)
Closure mechanism (7), described first closure mechanism (6) is arranged on the first stopper of pouring basket lid (1)
Between hole (3) and plug hole (2), described second closure mechanism (7) is arranged on described pouring basket lid
(1) between the second stopper hole (4) and plug hole (2), described first closure mechanism (6),
Described second closure mechanism (7) and pouring basket lid (1) form an accommodation space；
Offer some in the lower section of described first closure mechanism (6) with described second closure mechanism (7)
Hole；
Arranging argon filling pipeline in described pouring basket lid (1), described argon filling pipeline is provided with several and blows
Argon mouth；
Described argon blowing hole is arranged on above described accommodation space, described accommodation space is slowly blown
Argon, the argon in described accommodation space is by described first closure mechanism (6) and described second airtight machine
Structure (7) if lower section offer dry hole and enter the part beyond described tundish (5) interior accommodation space,
Stablize until described tundish (5) is opened to water.
The method of argon filling the most according to claim 1, it is characterised in that:
Described first closure mechanism (6) includes the first sheet metal (6-1), described first sheet metal (6-1)
Being arranged in described tundish (5), described first sheet metal (6-1) is arranged on described pouring basket lid
(1) between the first stopper hole (3) and plug hole (2)；
Described second closure mechanism (7) includes the second sheet metal (7-1), described second sheet metal (7-1)
Being arranged in described tundish (5), described second sheet metal (7-1) is arranged on described pouring basket lid
(1) between the second stopper hole (4) and plug hole (2).
The method of argon filling the most according to claim 2, it is characterised in that:
The size of described first sheet metal (6-1) and described second sheet metal (7-1) and described centre
The size of bag (5) matches.
The method of argon filling the most according to claim 2, it is characterised in that:
Described first sheet metal (6-1) offers some with the lower section of described second sheet metal (7-1)
Hole.
The method of argon filling the most according to claim 1, it is characterised in that described in described centre
Arranging argon filling pipeline on clad, described argon filling pipeline is provided with several argon blowing holes and includes:
The number of described argon blowing hole is no less than three.
The method of argon filling the most according to claim 1, it is characterised in that described by described argon blowing hole
It is arranged on above described accommodation space, described accommodation space is carried out slow Argon and includes:
The argon flow amount being filled with in described accommodation space is more than three times of described accommodation space volume.
7. a device for continuous casting production argon filling, described tundish (5) is provided above tundish
Lid (1), described pouring basket lid (1) offers the first stopper hole (3), the second stopper hole (4)
And plug hole (2)；It is characterized in that, the device of described argon filling includes:
First closure mechanism (6), is arranged in described tundish (5), described first closure mechanism
(6) it is arranged between the first stopper hole (3) and the plug hole (2) of described pouring basket lid (1),
Described first closure mechanism (6) is if lower section offers dry hole；
Second closure mechanism (7), is arranged in described tundish (5), described second closure mechanism
(7) it is arranged between the second stopper hole (4) and the plug hole (2) of described pouring basket lid (1),
Described second closure mechanism (7) is if lower section offers dry hole；
Argon filling pipeline, is arranged in described pouring basket lid (1), and described argon filling pipeline is provided with several
Argon blowing hole；
Wherein, described first closure mechanism (6), described second closure mechanism (7) and pouring basket lid
(1) forming an accommodation space, described argon blowing hole is arranged on above described accommodation space, to described accommodating
Space carries out slow Argon, the argon in described accommodation space by described first closure mechanism (6) with
Described second closure mechanism (7) if lower section offer dry hole enter described tundish (5) content be empty
Part beyond between, stablizes until described tundish (5) is opened to water.
The device of argon filling the most according to claim 7, it is characterised in that:
Described first closure mechanism (6) includes the first sheet metal (6-1), described first sheet metal (6-1)
Being arranged in described tundish (5), described first sheet metal (6-1) is arranged on described pouring basket lid
(1) between the first stopper hole (3) and plug hole (2), described first sheet metal (6-1)
If lower section offers dry hole, the size of described first sheet metal (6-1) and described tundish (5)
Size matches；
Described second closure mechanism (7) includes the second sheet metal (7-1), described second sheet metal (7-1)
Being arranged in described tundish (5), described second sheet metal (7-1) is arranged on described pouring basket lid
(5) between the second stopper hole (4) and plug hole (2), described second sheet metal (7-1)
If lower section offers dry hole, the size of described second sheet metal (7-1) and described tundish (5)
Size matches.
The device of argon filling the most according to claim 7, it is characterised in that:
The number of described argon blowing hole is no less than three.
Argon-filling device the most according to claim 7, it is characterised in that:
The argon flow amount being filled with in described accommodation space is more than three times of described accommodation space volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341800.9A CN105964998B (en) | 2016-05-20 | 2016-05-20 | A kind of method and device of continuous casting production argon filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341800.9A CN105964998B (en) | 2016-05-20 | 2016-05-20 | A kind of method and device of continuous casting production argon filling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105964998A true CN105964998A (en) | 2016-09-28 |
| CN105964998B CN105964998B (en) | 2018-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610341800.9A Active CN105964998B (en) | 2016-05-20 | 2016-05-20 | A kind of method and device of continuous casting production argon filling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918971A (en) * | 2019-11-11 | 2020-03-27 | 张家港宏昌钢板有限公司 | Novel tundish argon blowing device |
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| CN201760586U (en) * | 2010-06-09 | 2011-03-16 | 鞍山市量子炉材集团有限公司 | Argon-blowing slag dam of continuous casting tundish |
| CN103240406A (en) * | 2013-04-28 | 2013-08-14 | 首钢总公司 | Continuous casting tundish and continuous casting tundish casting control method |
| CN103949628A (en) * | 2014-04-30 | 2014-07-30 | 北京科技大学 | Device and method for eradicating secondary oxidation of tundish during continuous casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100008953A (en) * | 2008-07-17 | 2010-01-27 | 주식회사 포스코 | Continuous casting machine for tundish |
| CN201603865U (en) * | 2010-02-23 | 2010-10-13 | 宝山钢铁股份有限公司 | T type tundish adopting flow control device in form of 'two retaining walls and two retaining dams' |
| CN201693164U (en) * | 2010-06-07 | 2011-01-05 | 鞍钢股份有限公司 | Tundish dam with blowing function |
| CN201760586U (en) * | 2010-06-09 | 2011-03-16 | 鞍山市量子炉材集团有限公司 | Argon-blowing slag dam of continuous casting tundish |
| CN103240406A (en) * | 2013-04-28 | 2013-08-14 | 首钢总公司 | Continuous casting tundish and continuous casting tundish casting control method |
| CN103949628A (en) * | 2014-04-30 | 2014-07-30 | 北京科技大学 | Device and method for eradicating secondary oxidation of tundish during continuous casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918971A (en) * | 2019-11-11 | 2020-03-27 | 张家港宏昌钢板有限公司 | Novel tundish argon blowing device |
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| Publication number | Publication date |
|---|---|
| CN105964998B (en) | 2018-05-25 |
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