CN108480605A - A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band - Google Patents
A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band Download PDFInfo
- Publication number
- CN108480605A CN108480605A CN201810554400.5A CN201810554400A CN108480605A CN 108480605 A CN108480605 A CN 108480605A CN 201810554400 A CN201810554400 A CN 201810554400A CN 108480605 A CN108480605 A CN 108480605A
- Authority
- CN
- China
- Prior art keywords
- slag weir
- tundish
- steel
- weir
- outer layer
- 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.)
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Classifications
-
- 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
- B22D41/02—Linings
-
- 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
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band, the tundish include the mouth of a river, set on mouth of a river top stopper device and pour steel entrance, the tundish is cylindrical shape, including two layers of annular slag weir, respectively internal layer slag weir and outer layer slag weir, the outer layer slag weir and intermediate containment wall constitute tundish exocoel；The internal layer slag weir and outer layer slag weir constitute tundish intermediate cavity；Internal layer slag weir Inner Constitution tundish inner cavity；The mouth of a river is located at tundish exocoel；The steel entrance that pours is located at tundish inner cavity；The height of the internal layer slag weir and outer layer slag weir is higher than molten steel face.The present invention is designed using two layers of slag weir, so that molten steel is stayed for a long time in tundish, is floated to the slag inclusion sufficient time；Meanwhile keeping liquid steel temperature uniform, and annular slag weir designs and makes tundish entirety load-bearing uniform, casting is stablized.
Description
Technical field
The present invention relates to vacuum-casting technical fields, and in particular to a kind of centre used for vacuum ingot casting containing two layers of slag weir
Packet.
Background technology
Tundish is the device for molten steel casting between ladle and vacuum chamber, and main function is to realize that vacuum is close
The effects that envelope, storage molten steel, current stabilization.
It is primarily present problems in the prior art：
1, the flowing of molten steel generates disturbance to liquid steel level in tundish, and on the surface of molten steel, the slag of formation can be by molten steel
Impact enters the deeper position of liquid level or less, and bringing ingot mould into especially into the mouth of a river forms slag inclusion；
2, molten steel residence time in tundish is short, and Temperature Distribution is unreasonable；
3, slag weir is often unilateral setting so that tundish load-bearing is uneven, influences quality of casting.
Invention content
In view of the above-mentioned problems, the invention discloses a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band, it is described
Tundish include the mouth of a river, set on mouth of a river top stopper device and pour steel entrance, the tundish is cylindrical shape, including two layers of ring
Shape slag weir, respectively internal layer slag weir and outer layer slag weir, the outer layer slag weir and intermediate containment wall constitute tundish exocoel；
The internal layer slag weir and outer layer slag weir constitute tundish intermediate cavity；Internal layer slag weir Inner Constitution tundish inner cavity；
The mouth of a river is located at tundish exocoel；The steel entrance that pours is located at tundish inner cavity；The internal layer slag weir and outer layer slag weir
Height be higher than molten steel face.
Further, the mouth of a river top is provided with rectangular slag weir, is equipped with trepanning at the top of the rectangular slag weir, is used for
Across stopper device.
Further, the internal layer slag weir, outer layer slag weir and rectangular slag weir bottom, which are equipped with, lets out steel mouth, described to let out
Steel mouth bottom surface is flushed with tundish bottom surface.
Further, the internal layer slag weir, outer layer slag weir let out steel mouth correspondence gate is installed, the gate penetrates
Slag weir wall can lift up and down, and steel mouth is let out for opening and closing.
Further, the internal layer slag weir, outer layer slag weir let out the vertical stagger setting of steel mouth.
Further, the internal layer slag weir is oppositely arranged there are two letting out steel mouth；The outer layer slag weir is relatively set with
Two are let out steel mouth.
Further, the steel entrance that pours includes that vertical rigid channel of pouring leads to the steel of letting out for pouring steel entry bottom is set to
Road, it is described to pour rigid channel and let out the arc-shaped connection in steel channel.
Further, the internal layer slag weir and outer layer slag weir centre position were respectively equipped with steel channel, including internal layer
It crosses steel channel and outer layer crosses steel channel, the internal layer crosses steel channel height and crosses steel channel less than outer layer, and molten steel is by tundish inner cavity
Upward flow field is formed when flowing to tundish intermediate cavity.
Further, the opening for crossing steel channel in inside is less than the opening in outside, shape when molten steel stream passes through steel channel
At upward flow field.
Further, the internal layer crosses steel channel and outer layer is crossed steel channel and is arranged in parallel in the horizontal direction.
Further, the internal layer crosses steel channel and outer layer is crossed there are four steel channel is respectively set, in vertical direction phase
Angle is 90 degree between mutually.
The present invention is designed using two layers of slag weir, and molten steel is made to be stayed for a long time in tundish, gives the slag inclusion sufficient time
Float；Meanwhile keeping liquid steel temperature uniform, and annular slag weir designs and makes tundish entirety load-bearing uniform, casting is stablized.This
Invention is poured steel initial stage, and molten steel enters from tundish bottom, obtains the flow field of rising, promotes floating for slag inclusion.It pours rigid channel and lets out
The arc connection in steel channel can reduce impact dynamics of the molten steel to tundish, extend the service life of tundish.
Description of the drawings
Fig. 1 is the present invention containing the vertical tangent plane structural schematic diagram for pouring steel entrance.
Fig. 2 is that of the invention be free of pours steel entrance vertical tangent plane structural schematic diagram.
Fig. 3 be this ectonexine slag weir let out steel mouth and ectonexine crosses steel channel relative position relation schematic diagram.
Fig. 4 is that ectonexine of the present invention crosses steel channel vertical tangent plane structural schematic diagram.
Specific implementation mode
With reference to figure 1,2,3,4；
Fig. 1 is that 71 structure of gate of outer layer slag weir 6 is omitted in figure containing the vertical tangent plane structural schematic diagram for pouring steel entrance.
Fig. 2 is to invent without steel entrance vertical tangent plane structural schematic diagram is poured, and is omitted in figure and pours 4 structure of steel entrance, supplemented
71 structure of gate of outer layer slag weir 6.
Fig. 3 ectonexine slag weirs of the present invention let out steel mouth, ectonexine crosses steel channel relative position relation schematic diagram, illustrate
Ectonexine slag weir let out steel mouth 7, internal layer crosses steel channel 51 and outer layer crosses the relative position relation in steel channel 61.
It casts before molten steel, decentralization stopper device 3 blocks the mouth of a river 2, transfers gate 71, and steel mouth 7 is let out in blocking；It carries out pouring steel,
Molten steel enters tundish inner cavity 13 via pouring steel entrance 4, pour rigid channel 41 and let out steel channel 42, molten steel tundish inner cavity 13 by
Gradually rise, upward flow field makes slag inclusion float；When molten steel face, which rises to internal layer, crosses 51 times 1/2 height in steel channel, lock is promoted
Door 71, that opens internal layer slag weir 5 lets out steel mouth 7, and molten steel enters via the steel mouth 7 of letting out of 5 bottom of internal layer slag weir among tundish
The molten steel face of chamber 12, tundish inner cavity 13 rises slowly, and steel rate is poured in control, makes molten steel face and tundish in tundish inner cavity 13
Molten steel face in intermediate cavity 12 reaches internal layer and crosses steel channel 51 simultaneously, ensures the steel of tundish inner cavity 13 and tundish intermediate cavity 12
Liquid level remains the flow field of rising；When 12 molten steel face of tundish intermediate cavity, which reaches outer layer, crosses 61 times 2/3 height in steel channel, carry
The gate 71 of outer layer slag weir 6 is risen, opening lets out steel mouth 7, on the one hand molten steel lets out steel mouth 7 via 8 bottom of rectangular slag weir and enters water
Mouthfuls 2, outside molten steel face and the molten steel face in tundish exocoel 11 continue to rise and reach simultaneously in one side tundish intermediate cavity 12
The molten steel face of layer steel channel 61 excessively, guarantee tundish intermediate cavity 12 and tundish exocoel 11 remains the flow field of rising；In the middle
Between 11 molten steel face of packet exocoel reach outer layer when crossing steel channel 61, promote stopper device 3 and open the mouth of a river 2；Steel rate, molten steel are poured in control
7 entry nozzle 2 of steel mouth is let out via trepanning 9 and rectangular slag weir 8.
When 11 molten steel of tundish exocoel faces nearly trepanning 9, decline stopper device 3, block trepanning 9, molten steel only via
Let out 7 entry nozzle 2 of steel mouth in 8 bottom of rectangular slag weir.
Claims (10)
1. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band, the tundish (1) include the mouth of a river (2), are set to water
The stopper device (3) on mouthful (2) top and pour steel entrance (4), it is characterised in that：The tundish (1) is cylindrical shape, including two layers
Annular slag weir, respectively internal layer slag weir (5) and outer layer slag weir (6), the outer layer slag weir (6) and tundish (1) wall
Constitute tundish exocoel (11)；The internal layer slag weir (5) and outer layer slag weir (6) constitute tundish intermediate cavity (12)；It is described
Internal layer slag weir (5) Inner Constitution tundish inner cavity (13)；The mouth of a river (2) is located at tundish exocoel (11)；The steel that pours enters
Mouth (4) is located at tundish inner cavity (13)；The height of the internal layer slag weir (5) and outer layer slag weir (6) is higher than molten steel face.
2. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 1, it is characterised in that：Institute
It states the mouth of a river (2) top and is provided with rectangular slag weir (8), trepanning (9) is equipped at the top of the rectangular slag weir (8), for across plug
Bar device (3).
3. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 2, it is characterised in that：Institute
It states internal layer slag weir (5), outer layer slag weir (6) and rectangular slag weir (8) bottom and is equipped with and let out steel mouth (7), it is described to let out steel mouth (7)
Bottom surface is flushed with tundish (1) bottom surface.
4. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 3, it is characterised in that：Institute
State internal layer slag weir (5), outer layer slag weir (6) let out steel mouth (7) correspondence gate (71) is installed, the gate (71) penetrates gear
Slag weir wall can lift up and down, and steel mouth (7) is let out for opening and closing.
5. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 3 or 4, feature exist
In：The internal layer slag weir (5), outer layer slag weir (6) let out the vertical stagger setting of steel mouth (7).
6. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 5, it is characterised in that：Institute
Internal layer slag weir (5) is stated to be oppositely arranged there are two letting out steel mouth (7)；The outer layer slag weir (6) lets out steel mouth there are two being oppositely arranged
(7)。
7. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 1, it is characterised in that：Institute
State pour steel entrance (4) include it is vertical pour that rigid channel (41) and being set to pours steel entrance (4) bottom let out steel channel (42), it is described
It pours rigid channel (41) and lets out steel channel (42) arc-shaped connection.
8. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 1, it is characterised in that：Institute
State the intermediate position of internal layer slag weir (5) and outer layer slag weir (6) and be respectively equipped with steel channel, including internal layer cross steel channel (51) and
Outer layer crosses steel channel (61), and the internal layer crosses steel channel (51) and highly crosses steel channel (61) less than outer layer, and molten steel is by tundish
Chamber (13) forms upward flow field when flowing to tundish intermediate cavity (12).
9. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 8, it is characterised in that：Institute
Steel channel was stated in the opening of inside less than the opening in outside, molten steel stream when steel channel by forming upward flow field.
10. a kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band according to claim 8 or claim 9, feature exist
In：The internal layer crosses steel channel (51) and outer layer is crossed steel channel (61) and is arranged in parallel in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554400.5A CN108480605A (en) | 2018-06-01 | 2018-06-01 | A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554400.5A CN108480605A (en) | 2018-06-01 | 2018-06-01 | A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108480605A true CN108480605A (en) | 2018-09-04 |
Family
ID=63352484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554400.5A Withdrawn CN108480605A (en) | 2018-06-01 | 2018-06-01 | A kind of tundish used for vacuum ingot casting of the double-deck annular slag weir of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108480605A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449723A (en) * | 2022-04-08 | 2022-05-06 | 北京奥邦新材料有限公司 | Device and method for improving power factor of tundish plasma heating system |
-
2018
- 2018-06-01 CN CN201810554400.5A patent/CN108480605A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114449723A (en) * | 2022-04-08 | 2022-05-06 | 北京奥邦新材料有限公司 | Device and method for improving power factor of tundish plasma heating system |
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| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180904 |
|
| WW01 | Invention patent application withdrawn after publication |