CN108380849A - A kind of application process of tundish used for vacuum ingot casting - Google Patents
A kind of application process of tundish used for vacuum ingot casting Download PDFInfo
- Publication number
- CN108380849A CN108380849A CN201810554421.7A CN201810554421A CN108380849A CN 108380849 A CN108380849 A CN 108380849A CN 201810554421 A CN201810554421 A CN 201810554421A CN 108380849 A CN108380849 A CN 108380849A
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- CN
- China
- Prior art keywords
- steel
- tundish
- mouth
- molten steel
- slag weir
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- 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
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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
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
-
- 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
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/12—Appurtenances, e.g. for sintering, for preventing splashing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of application processes of tundish used for vacuum ingot casting, including following steps：Before pouring steel, decentralization stopper blocks the mouth of a river, and steel mouth is let out in decentralization gate blocking；Steel is poured, molten steel enters exocoel through pouring steel entrance, and the upward flow field of exocoel makes slag inclusion float；Molten steel face rises to outer layer when crossing 1/2 height under steel channel, and lift gate opens outer layer slag weir and lets out steel mouth, and molten steel lets out steel mouth through outer layer slag weir and enters intermediate cavity, and steel rate is poured in control, so that exocoel molten steel face is reached outer layer simultaneously with intermediate cavity molten steel face and is crossed steel channel；When tundish intermediate cavity molten steel face, which reaches internal layer, crosses 2/3 height under steel channel, internal layer slag weir gate is promoted, opening lets out steel mouth, promotes stopper device and opens the mouth of a river；Steel rate is poured in control, and molten steel is via trepanning entry nozzle.When molten steel faces nearly trepanning when inner cavity, decline stopper, block trepanning, molten steel lets out steel mouth entry nozzle by rectangular slag weir.The present invention facilitates slag inclusion to float；And load-bearing is uniform, casting is stablized.
Description
Technical field
The present invention relates to vacuum-casting technical fields, and in particular to a kind of tundish used for vacuum ingot casting.
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 application process of tundish used for vacuum ingot casting, the tundish 1 wraps
Include the mouth of a river 2, set on 2 top of the mouth of a river stopper device 3 and pour steel entrance 4, the tundish 1 be 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 1 wall of tundish are constituted outside tundish
Chamber 11；The internal layer slag weir 5 and outer layer slag weir 6 constitute tundish intermediate cavity 12；In 5 Inner Constitution of internal layer slag weir
Between wrap inner cavity 13；The mouth of a river 2 is located at tundish inner cavity 13；The steel entrance 4 that pours is located at tundish exocoel 11；The internal layer gear
The height of slag weir 5 and outer layer slag weir 6 is higher than molten steel face；2 top of the mouth of a river is provided with rectangular slag weir 8, the rectangular gear
8 top of slag weir is equipped with trepanning 9, for across stopper device 3；The internal layer slag weir 5, outer layer slag weir 6 and rectangular slag weir 8
Bottom, which is equipped with, lets out steel mouth 7, and 7 bottom surface of steel mouth of letting out is flushed with 1 bottom surface of tundish；The internal layer slag weir 5, outer layer slag weir
6 correspondence of steel mouth 7 of letting out is equipped with gate 71, and the gate 71 penetrates slag weir wall and can lift up and down, and steel mouth is let out for opening and closing
4；It is described pour steel entrance 4 include it is vertical pour that rigid channel 41 and being set to pours 4 bottom of steel entrance let out steel channel 42, it is described to pour just
Channel 41 and let out the 42 arc-shaped connection of steel channel；The internal layer slag weir 5 and 6 intermediate position of outer layer slag weir were respectively equipped with steel
Channel, including internal layer crosses steel channel 51 and outer layer crosses steel channel 61, the internal layer crosses 51 height of steel channel, and higher than outer layer to cross steel logical
Road 61, molten steel form upward flow field when flowing to tundish inner cavity 12 by tundish intermediate cavity 13；It is described to cross steel channel on the outside
Opening less than inside opening, molten steel stream pass through steel channel when form upward flow field, including following steps：
Step 1：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；Into
Row pours steel, and molten steel is via pouring steel entrance 4, pouring rigid channel 41 and letting out steel channel 42 into tundish exocoel 11, and molten steel is in tundish
Exocoel 11 is gradually increasing, and upward flow field makes slag inclusion float；
Step 2：When molten steel face, which rises to outer layer, crosses 61 times 1/2 height in steel channel, lift gate 71 opens outer layer gear
Steel mouth 7 is let out on slag weir 6, and molten steel enters tundish intermediate cavity 12, tundish exocoel via the steel mouth 7 of letting out of 6 bottom of outer layer slag weir
11 molten steel face rises slowly, and steel rate is poured in control, makes molten steel face and the steel in tundish intermediate cavity 12 in tundish exocoel 11
Liquid level reaches outer layer and crosses steel channel 61 simultaneously, ensures that the molten steel face of tundish exocoel 11 and tundish intermediate cavity 12 remains
The flow field risen；
Step 3：When 12 molten steel face of tundish intermediate cavity, which reaches internal layer, crosses 51 times 2/3 height in steel channel, internal layer gear is promoted
The gate 71 on slag weir 5, that opens internal layer slag weir 5 lets out steel mouth 7, molten steel on the one hand via 8 bottom of rectangular slag weir let out steel mouth 7 into
Water inlet 2, molten steel face continues to rise and arrive simultaneously with the molten steel face in tundish inner cavity 13 in one side tundish intermediate cavity 12
Steel channel 51 is crossed up to internal layer, ensures that the molten steel face of tundish intermediate cavity 12 and tundish exocoel 11 remains the flow field of rising；
When 13 molten steel face of tundish inner cavity, which reaches internal layer, crosses steel channel 51, promotes stopper device 3 and open the mouth of a river 2；Steel rate is poured in control,
Molten steel lets out 7 entry nozzle 2 of steel mouth via trepanning 9 and rectangular slag weir 8.
Step 4：When 13 molten steel faces nearly trepanning 9 when tundish inner cavity, decline stopper device 3, blocks trepanning 9, molten steel is only
Only 7 entry nozzle 2 of steel mouth is let out via 8 bottom of rectangular slag weir.
The method of the present invention is using two layers of slag weir and the design and control of letting out steel port strobe, when keeping molten steel long in tundish
Between stay, float to the slag inclusion sufficient time；Meanwhile keeping liquid steel temperature uniform, and annular slag weir designs so that tundish
Whole load-bearing is uniform, and casting is stablized.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is that ectonexine slag weir of the present invention lets out steel mouth and ectonexine crosses steel channel relative position relation schematic diagram.
Fig. 3 is that ectonexine of the present invention crosses steel channel vertical tangent plane structural schematic diagram.
Fig. 4 is that the present invention pours rigid entrance vertical tangent plane structural schematic diagram.
Specific implementation mode
With reference to figure 1,2,3,4；
Fig. 2 illustrate inside and outside layer slag weir let out steel mouth 7, internal layer crosses steel channel 51 and outer layer crosses the opposite of steel channel 61
Position relationship.
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 exocoel 11 via pouring steel entrance 4, pour rigid channel 41 and let out steel channel 42, molten steel tundish exocoel 11 by
Gradually rise, upward flow field makes slag inclusion float；When molten steel face, which rises to outer layer, crosses 61 times 1/2 height in steel channel, lock is promoted
Door 71, that opens outer layer slag weir 6 lets out steel mouth 7, and molten steel enters via the steel mouth 7 of letting out of 6 bottom of outer layer slag weir among tundish
The molten steel face of chamber 12, tundish exocoel 11 rises slowly, and steel rate is poured in control, makes molten steel face and tundish in tundish exocoel 11
Molten steel face in intermediate cavity 12 reaches outer layer and crosses steel channel 61 simultaneously, ensures tundish exocoel 11 and the steel of tundish intermediate cavity 12
Liquid level remains the flow field of rising；When 12 molten steel face of tundish intermediate cavity, which reaches internal layer, crosses 51 times 2/3 height in steel channel, carry
The gate 71 of internal layer slag weir 5 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, molten steel face and the molten steel face in tundish inner cavity 13 continue to rise and simultaneously in arrival in one side tundish intermediate cavity 12
The molten steel face of layer steel channel 51 excessively, guarantee tundish intermediate cavity 12 and tundish exocoel 11 remains the flow field of rising；In the middle
Between packet 13 molten steel face of inner cavity reach internal layer when crossing steel channel 51, 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 tundish inner cavity, 13 molten steel 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 (1)
1. a kind of application process of tundish used for vacuum ingot casting, the tundish (1) includes the mouth of a river (2), is set to the mouth of a river (2) top
Stopper device (3) and pour steel entrance (4), it is characterised in that：The tundish (1) is cylindrical shape, including two layers of annular pushing off the 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 intermediate
Packet exocoel (11)；The internal layer slag weir (5) and outer layer slag weir (6) constitute tundish intermediate cavity (12)；The internal layer pushing off the slag
Weir (5) Inner Constitution tundish inner cavity (13)；The mouth of a river (2) is located at tundish inner cavity (13)；The steel entrance (4) that pours is located at
Tundish exocoel (11)；The height of the internal layer slag weir (5) and outer layer slag weir (6) is higher than molten steel face；On the mouth of a river (2)
Portion is provided with rectangular slag weir (8), trepanning (9) is equipped at the top of the rectangular slag weir (8), for across stopper device (3)；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；The internal layer slag weir (5), outer layer slag weir (6) let out steel mouth (7) correspondence be equipped with
Gate (71), the gate (71), which penetrates slag weir wall, to be lifted up and down, and steel mouth (4) is let out for opening and closing；It is described to 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 to pour rigid channel
(41) and steel channel (42) arc-shaped connection is let out；The internal layer slag weir (5) and the intermediate position of outer layer slag weir (6) are respectively equipped with
Steel channel is crossed, including internal layer crosses steel channel (51) and outer layer crosses steel channel (61), the internal layer is crossed steel channel (51) and is highly higher than
Outer layer crosses steel channel (61), and molten steel forms upward flow field when flowing to tundish inner cavity (12) by tundish intermediate cavity (13)；Institute
Opening of the opening of steel channel on the outside less than inside was stated, molten steel stream forms upward flow field, feature when passing through steel channel
It is：Including following steps：
Step 1：It casts before molten steel, decentralization stopper device (3) blocks the mouth of a river (2), and steel mouth is let out in decentralization gate (71), blocking
(7)；Pour steel, molten steel enters tundish exocoel via pouring steel entrance (4), pour rigid channel (41) and let out steel channel (42)
(11), molten steel is gradually increasing in tundish exocoel (11), and upward flow field makes slag inclusion float；
Step 2：When molten steel face, which rises to outer layer, crosses 1/2 height under steel channel (61), lift gate (71) opens outer layer gear
Steel mouth (7) is let out on slag weir (6), and molten steel enters tundish intermediate cavity (12) via the steel mouth (7) of letting out of outer layer slag weir (6) bottom,
The molten steel face of tundish exocoel (11) rises slowly, and steel rate is poured in control, makes molten steel face and tundish in tundish exocoel (11)
Molten steel face in intermediate cavity (12) reaches outer layer and crosses steel channel (61) simultaneously, ensures tundish exocoel (11) and tundish intermediate cavity
(12) molten steel face remains the flow field of rising；
Step 3：When tundish intermediate cavity (12) molten steel face, which reaches internal layer, crosses 2/3 height under steel channel (51), internal layer gear is promoted
The gate (71) on slag weir (5), that opens internal layer slag weir (5) lets out steel mouth (7), and molten steel is on the one hand via rectangular slag weir (8) bottom
Steel mouth (7) entry nozzle (2) is let out in portion, molten steel face and the molten steel in tundish inner cavity (13) in one side tundish intermediate cavity (12)
Face, which continues to rise and reach simultaneously internal layer, crosses steel channel (51), ensures the steel of tundish intermediate cavity (12) and tundish exocoel (11)
Liquid level remains the flow field of rising；When tundish inner cavity (13) molten steel face, which reaches internal layer, crosses steel channel (51), stopper is promoted
Device (3) opens the mouth of a river (2)；Steel rate is poured in control, and molten steel enters via the steel mouth (7) of letting out of trepanning (9) and rectangular slag weir (8)
The mouth of a river (2).
Step 4：When tundish inner cavity (13) molten steel faces nearly trepanning (9), decline stopper device (3), blocks trepanning (9), steel
Water only lets out steel mouth (7) entry nozzle (2) via rectangular slag weir (8) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554421.7A CN108380849B (en) | 2018-06-01 | 2018-06-01 | application method of tundish for vacuum ingot casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554421.7A CN108380849B (en) | 2018-06-01 | 2018-06-01 | application method of tundish for vacuum ingot casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108380849A true CN108380849A (en) | 2018-08-10 |
| CN108380849B CN108380849B (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554421.7A Active CN108380849B (en) | 2018-06-01 | 2018-06-01 | application method of tundish for vacuum ingot casting |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03268844A (en) * | 1990-03-16 | 1991-11-29 | Sumitomo Metal Ind Ltd | Casting method in horizontal type continuous casting method |
| DE102006005723A1 (en) * | 2006-02-08 | 2007-08-16 | Purmetall Gmbh & Co. Kg | Injection pot for receiving a flowing out of a casting ladle metallic melt |
| CN201249259Y (en) * | 2008-06-05 | 2009-06-03 | 广州珠江钢铁有限责任公司 | Slab continuous casting tundish |
| CN101774014A (en) * | 2008-12-16 | 2010-07-14 | 中国第一重型机械股份公司 | Tundish with baffle wall for vacuum cast ingot |
| WO2010094259A1 (en) * | 2009-02-19 | 2010-08-26 | Berthold Stilkerieg | Device for preventing vortices in metallurgical vessels |
| CN103567423A (en) * | 2012-07-28 | 2014-02-12 | 泰州市旺鑫耐火材料有限公司 | Slag stopping wall of tundish |
| CN205437122U (en) * | 2016-03-28 | 2016-08-10 | 马鞍山尚元冶金科技有限公司 | Reduce middle package of IF steel of casting blank inclusion |
| CN206622606U (en) * | 2017-04-18 | 2017-11-10 | 河钢股份有限公司邯郸分公司 | A kind of tundish for reducing continuous casting and pouring surplus steel |
-
2018
- 2018-06-01 CN CN201810554421.7A patent/CN108380849B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03268844A (en) * | 1990-03-16 | 1991-11-29 | Sumitomo Metal Ind Ltd | Casting method in horizontal type continuous casting method |
| DE102006005723A1 (en) * | 2006-02-08 | 2007-08-16 | Purmetall Gmbh & Co. Kg | Injection pot for receiving a flowing out of a casting ladle metallic melt |
| CN201249259Y (en) * | 2008-06-05 | 2009-06-03 | 广州珠江钢铁有限责任公司 | Slab continuous casting tundish |
| CN101774014A (en) * | 2008-12-16 | 2010-07-14 | 中国第一重型机械股份公司 | Tundish with baffle wall for vacuum cast ingot |
| WO2010094259A1 (en) * | 2009-02-19 | 2010-08-26 | Berthold Stilkerieg | Device for preventing vortices in metallurgical vessels |
| CN103567423A (en) * | 2012-07-28 | 2014-02-12 | 泰州市旺鑫耐火材料有限公司 | Slag stopping wall of tundish |
| CN205437122U (en) * | 2016-03-28 | 2016-08-10 | 马鞍山尚元冶金科技有限公司 | Reduce middle package of IF steel of casting blank inclusion |
| CN206622606U (en) * | 2017-04-18 | 2017-11-10 | 河钢股份有限公司邯郸分公司 | A kind of tundish for reducing continuous casting and pouring surplus steel |
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| Publication number | Publication date |
|---|---|
| CN108380849B (en) | 2019-12-13 |
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Effective date of registration: 20191122 Address after: 653100 No. 5 Dongfeng North Road, Hongta District, Yuxi City, Yunnan Province Applicant after: Yunnan Yuxi Yukun Iron and Steel Group Co., Ltd. Address before: 213100 A-101, 16 West Lake Road, Wujin national hi tech Industrial Development Zone, Changzhou, Jiangsu, China, 16 Applicant before: Changzhou Lingfeng super intelligence information Consulting Co., Ltd. |
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