CN201313174Y - Upper honeycomb duct and tundish thereof for vacuum ingot casting - Google Patents
Upper honeycomb duct and tundish thereof for vacuum ingot casting Download PDFInfo
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- CN201313174Y CN201313174Y CNU200820189958XU CN200820189958U CN201313174Y CN 201313174 Y CN201313174 Y CN 201313174Y CN U200820189958X U CNU200820189958X U CN U200820189958XU CN 200820189958 U CN200820189958 U CN 200820189958U CN 201313174 Y CN201313174 Y CN 201313174Y
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- tundish
- mozzle
- fixed part
- fixed
- connecting portion
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Abstract
The utility model relates to vacuum pouring technical field, in particular to an upper honeycomb duct which is fixed on a cover of a tundish. The upper honeycomb duct can take effect on protecting refined and tundish steel stream in the pouring process. The utility model is technically characterized in that: an upper end of the upper honeycomb duct is fixed on the cover of the tundish; a lower end is inserted into the tundish liquid steel for 500mm to 1000mm; the reoxidation of the liquid steel can be reduced; the slag entrapment, which is formed in such mode that level fluctuation and steel stream impact the slag surface, can be reduced; the fluctuation of the liquid steel in the tundish can be reduced; the impact to the stopper rod of the tundish can be reduced; and the steel-pouring tonnage of the stopper rod can be improved.
Description
Technical field:
The utility model relates to the vacuum-casting technical field, and particularly a kind of vacuum-casting is used mozzle and comprised the tundish that this vacuum-casting is used mozzle.
Background technology:
Refining bag mozzle is promptly gone up mozzle and is mounted in a kind of mozzle on the tundish lid.The tundish of prior art is when cast, and the molten steel that flows out from the refining bag directly adds tundish, in tundish, the beam surface is the turbulent flow of high development, and the beam impact zone forms very irregular wave motion, is involved in air dispersion and becomes minute bubbles, cause the air-breathing of molten steel, secondary oxidation is serious.On the other hand, tundish molten steel surface slag blanket involves under the acting in conjunction of interfacial tension on the formed surface of beam impact liquid level, flows to tundish bag wall direction, causes slag to assemble near the bag wall, forms downward bulge.Some bulges are under the further effect of turbulent flow, also gradually break away from slag blanket, the formation slag drips, be involved in depths, tundish molten bath by the backflow of molten steel surface, some surperficial slag blanket is dripped by beam impact formation slag and directly enters the depths, molten bath, these slags drip a part at the buoyancy function float downward to slag-steel interface, the part come-up that is not able to do in time just directly is involved in by middle water containing opening and flows out tundish and enter steel ingot and form the volume slag.
The tundish of prior art, owing to the percussion of beam, molten steel fluctuation is violent in the tundish when cast, and tundish bag wall and tundish stopper are formed very big impulsive force, the service life of having reduced the tundish stopper.
The utility model content:
In order to solve the technical problem in the background technology, the purpose of this utility model is to provide a kind of vacuum-casting to use mozzle.
The technical solution of the utility model is: a kind of used for vacuum ingot casting refining bag mozzle, and it is characterized in that: this mozzle is made up of fixed part and body, and fixed part is fixedly connected on the tube wall at body top.
Described fixed part is annular retainer plate, and this retainer plate is positioned at the outside of body tube wall.
Described body is the identical straight tube of internal diameter size.
Be provided with funnel shaped connecting portion between described fixed part and the body, this fixed part is connected on the tube wall of this connecting portion upper end, and described body is connected on the tube wall of this connecting portion bottom.
Another purpose of the present utility model is to provide a kind of tundish that vacuum-casting is used mozzle that has.
This technical purpose is implemented as follows: a kind ofly comprise the tundish that vacuum-casting is used mozzle, it is characterized in that: the lid of tundish is provided with opening, Open Side Down is inserted in this tundish by this for the body that should go up mozzle, is located at that fixed part of mozzle is connected on the lid of tundish on this.
On the lid of this tundish, be provided with fixture; The fixed part that this fixture will go up mozzle top is fixed on the tundish lid.
Described fixture is plural fixed head with bayonet socket, and the end with bayonet socket blocks the fixed part on this mozzle top, and the other end is fixed on the lid of tundish.
This fixture is four fixed heads with bayonet socket, and these four fixed heads are evenly distributed in around the fixed part on mozzle top.
When cast, the upper end fixed part that should go up mozzle is fixed on tundish and covers, the lower end body is submerged in the molten steel of tundish, the molten steel that comes from the refining bag pours into mozzle on this, molten steel in pipe forms violent fluctuation, this wave energy is subjected to stopping of tube wall, can not pass to mozzle outside on this; In tundish, the liquid steel level beyond this mozzle is very steady, being mingled with of tundish molten steel surface can be involved in the mouth of a river and enter steel ingot, and the small part that enters tundish simultaneously from the mozzle bottom is mingled with the removal of also can steadily rising.Because the reducing of molten steel fluctuation in the tundish reduced the impact of molten steel to tundish and stopper widely, prolonged tundish service life, that has improved stopper waters the steel tonnage.During cast; the part refining slag that enters in the mozzle also can be littler and stay in the mozzle than molten steel because of its density; can not enter tundish, when liquid steel level drops to mozzle when following, slag enters tundish; the refining bag of this moment has stopped cast; liquid level no longer fluctuates, and slag can not be involved in molten steel inside, forms the volume slag; but cover the molten steel surface, played the certain protection effect.
Be fixed on tundish and cover and lift in order to go up mozzle, need do four lifting fixtures fixing should on mozzle, and cover four metal fixed heads of weldering at tundish, be seated fixing during installation with steady pin.
The mozzle inner space is big on the straight barrel type, and beam impacts less to mozzle, and the mozzle requirement of strength is lower.The funneling mozzle of going up is in order to save the refractory material design, and little because of the inner space, molten steel is stronger to the impact of tube wall, requires tube wall that certain impact strength is arranged, and the funneling outlet steel flow velocity degree of going up mozzle is bigger, and is bigger to the impact at the bottom of the tundish.
Below in conjunction with accompanying drawing,, the utility model is described in detail as follows by specific embodiment:
Description of drawings:
Fig. 1 uses mozzle assembling schematic diagram for vacuum-casting;
Fig. 2 is the last mozzle schematic diagram of straight-tube shape;
Fig. 3 is the flared mozzle schematic diagram of going up;
Fig. 4 is the fixture on the last mozzle;
Fig. 5 is the fixture on the tundish lid;
Among the figure, 1: fixture, 2: fixed head, 3: go up mozzle, 31: fixed part, 32: body, 33: funneling connecting portion, 4: slag, 5: tundish.
The specific embodiment:
Consult Fig. 1, in the present embodiment, this vacuum-casting is used mozzle, and mozzle is made up of fixed part 31 and body 32 on this, and fixed part 31 is fixedly connected on the tube wall at body 32 tops.
Described fixed part 31 is annular retainer plate, and this retainer plate is positioned at the outside of body 32 tube walls.
See also Fig. 2, be the last mozzle schematic diagram of straight-tube shape.Described body 32 is a straight tube.
See also Fig. 3, be the flared mozzle schematic diagram of going up.Be provided with funnel shaped connecting portion 33 between described fixed part 31 and the body 32, this fixed part 31 is connected on the tube wall of these infundibulate connecting portion 33 upper ends, and described body 32 is connected on the tube wall of these connecting portion 33 bottoms.
The internal diameter of this fixed part 31 is identical with the top internal diameter size of this connecting portion 33, and the internal diameter of these connecting portion 33 bottoms is identical with the internal diameter size of body 32.
See also Figure 4 and 5, Fig. 4 is the fixture on the last mozzle; Fig. 5 is the fixture on the tundish lid.This embodiment is a kind of tundish that vacuum-casting is used mozzle that includes, and the lid of tundish 5 is provided with opening, and Open Side Down inserts in this tundish 5 body 32 of mozzle 3 by being somebody's turn to do on this, and this fixed part 31 is fixedly connected on the lid of tundish.
On the lid of tundish 5, be provided with fixture 1; The fixed part 31 that this fixture 1 will go up mozzle 3 tops is fixed on the tundish lid.
Described fixture 1 is plural fixed head 2 with bayonet socket, and the end that this fixed head 2 has bayonet socket blocks the fixed part 31 on mozzle top on this, and the other end is fixed on the lid of tundish.
This fixture 1 is four fixed heads 2 with bayonet socket, and these four fixed heads 2 are evenly distributed in around the fixed part 31 on mozzle top.
Embodiment is more specifically: mozzle on the straight barrel type shown in Fig. 2, the internal diameter of mozzle is designed to 400-500mm on its straight barrel type, last mozzle wall thickness is 60-80mm, last mozzle upper end fixed part 31 is a retainer plate, this retainer plate external diameter is than the big 160-200mm of the normal external diameter of last mozzle, the retainer plate height is 100-120mm, and last mozzle 3 length overalls are determined according to the height of tundish, generally at 1500-1800mm.
Among the embodiment of mozzle, the retainer plate size is the same with straight barrel type on funneling, 33 sections high 400-550mm of funnel-form connecting portion, last mozzle 32 bottom diameter 200-250mm.
The funneling mozzle of going up among Fig. 3, its funneling wall thickness of going up mozzle body 32 should be slightly thicker than the wall thickness of mozzle body 32 on the straight barrel type.
During installation, at first will go up mozzle 3 lifting fixtures 1, this fixture 1 is fixed on around the retainer plate 31 of mozzle 3 evenly distributedly, after middle clad is built, to go up mozzle 3 tundish 3 of packing into from middle clad hole with overhead traveling crane, fixture 1 position covers four fixed metal plate 2 positions of weldering to good with tundish, pass in the pin-and-hole of fixed metal plate 2 and last mozzle fixture 31 fixing with metallic pin, for the molten steel that prevents to splash in the casting process burns out fixture, need the metal that is exposed is wrapped with asbestos cord.
Claims (10)
1. a vacuum-casting is used mozzle, it is characterized in that: mozzle is made up of fixed part (31) and body (32) on this, and fixed part (31) is fixedly connected on the tube wall at body (32) top.
2. according to the described mozzle of going up of claim 1, it is characterized in that: described fixed part (31) is annular retainer plate, and this retainer plate is positioned at the outside of body (32) tube wall.
3. according to the described mozzle of going up of claim 1, it is characterized in that: described body (32) is a straight tube.
4. according to the described mozzle of going up of claim 1, it is characterized in that: be provided with funnel shaped connecting portion (33) between described fixed part (31) and the body (32), this fixed part (31) is connected on the tube wall of this infundibulate connecting portion (33) upper end, and described body (32) is connected on the tube wall of this connecting portion (33) bottom.
5. according to the described mozzle of going up of claim 2, it is characterized in that: be provided with funnel shaped connecting portion (33) between described fixed part (31) and the body (32), this fixed part (31) is connected on the tube wall of this infundibulate connecting portion (33) upper end, and described body (32) is connected on the tube wall of this connecting portion (33) bottom.
6. according to claim 4 or the 5 described mozzles of going up, it is characterized in that: the internal diameter of this fixed part (31) is identical with the top internal diameter size of this connecting portion (33), and the internal diameter of this connecting portion (33) bottom is identical with the internal diameter size of body (32).
7. one kind includes claim 1,2,3, the 4 or 5 described tundish of going up mozzle, it is characterized in that: the lid of tundish (5) is provided with opening, upward Open Side Down inserts in this tundish (5) body (32) of mozzle (3) by being somebody's turn to do, and this fixed part (31) is fixedly connected on the lid of tundish.
8. tundish according to claim 7 is characterized in that: be provided with fixture (1) on the lid of tundish (5); The fixed part (31) that this fixture (1) will go up mozzle (3) top is fixed on the tundish lid.
9. tundish according to claim 8, it is characterized in that: described fixture (1) is plural fixed head (2) with bayonet socket, the end that this fixed head (2) has bayonet socket blocks the fixed part (31) on mozzle top on this, and the other end is fixed on the lid of tundish.
10. tundish according to claim 9 is characterized in that: this fixture (1) is four fixed heads (2) with bayonet socket, and the fixed part (31) that these four fixed heads (2) are evenly distributed in mozzle top all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820189958XU CN201313174Y (en) | 2008-12-16 | 2008-12-16 | Upper honeycomb duct and tundish thereof for vacuum ingot casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820189958XU CN201313174Y (en) | 2008-12-16 | 2008-12-16 | Upper honeycomb duct and tundish thereof for vacuum ingot casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201313174Y true CN201313174Y (en) | 2009-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820189958XU Expired - Fee Related CN201313174Y (en) | 2008-12-16 | 2008-12-16 | Upper honeycomb duct and tundish thereof for vacuum ingot casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201313174Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624996A (en) * | 2015-02-05 | 2015-05-20 | 澳洲澳秀科技有限公司 | Continuous casting machine molten steel distribution device and molten steel liquid level control method thereof |
-
2008
- 2008-12-16 CN CNU200820189958XU patent/CN201313174Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624996A (en) * | 2015-02-05 | 2015-05-20 | 澳洲澳秀科技有限公司 | Continuous casting machine molten steel distribution device and molten steel liquid level control method thereof |
| CN104624996B (en) * | 2015-02-05 | 2017-08-11 | 澳洲澳秀科技有限公司 | Conticaster molten steel distributor and its liquid steel level control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100528 Address after: 161042 Tiexi Road, Fulaerji District, Heilongjiang, China, No. 9, No. Patentee after: China First Heavy Industries Co., Ltd. Address before: 161042 Tiexi Road, Fulaerji District, Heilongjiang, China, No. 9, No. Patentee before: China No.1 Heavy-Duty Machinery Group Co. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20131216 |