CN106424617A - Casting nozzle for roll casting - Google Patents
Casting nozzle for roll casting Download PDFInfo
- Publication number
- CN106424617A CN106424617A CN201610884313.7A CN201610884313A CN106424617A CN 106424617 A CN106424617 A CN 106424617A CN 201610884313 A CN201610884313 A CN 201610884313A CN 106424617 A CN106424617 A CN 106424617A
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- CN
- China
- Prior art keywords
- casting
- molten metal
- nozzle body
- nozzle
- casting nozzle
- 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
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention relates to the technical field of roll casting and particularly relates to a casting nozzle for roll casting. The casting nozzle for roll casting comprises a casting nozzle body; the two sides of the casting nozzle body are each provided with a metal liquid flow channel; two metal liquid flowing passages corresponding to the two metal liquid flow channels are formed between the front part of the casting nozzle body and two rollers; the two metal liquid flowing passages joint together in front of the casting nozzle body. The casting nozzle provided by the invention has the beneficial effects that the metal liquid flowing passages are formed at the casting nozzle body and the surface of each roller, and metal liquid can enter the metal liquid flowing passages via the metal liquid flow channels, so rectification of the metal liquid is realized; continuous and stable flowing of the metal liquid is facilitated; moreover, by virtue of the metal liquid flowing passages, the thickness of flowing metal liquid is reduced, and the metal liquid clings to the surface of the corresponding roller when passing through the corresponding metal liquid flowing passage, so rapid cooling of the metal liquid is facilitated.
Description
Technical field
The present invention relates to rolling casting technology field, more particularly to a kind of casting cast nozzle.
Background technology
Twin roll continuous casting is with the difference of other continuous casting process：Twin roll continuous casting is collection solidification, becomes
Shape is in the complex art of one.High speed strip double-roller rolling is a kind of short route, the processing technique of nearly end form, its strip casting process category
In Sub realizable fuzzy matrix category, its rate of cooling is 102DEG C/s～104DEG C/s between.The technology specifically has crystal grain thinning, suppression inclined
The advantages of analysis, the heterogeneous microstructure of product can be improved, bring excellent properties for follow, moreover it is possible to produce common process bar
The product for producing is difficult under part.Due to its process characteristic, technical requirements molten metal rate of cooling in strip casting process is fast, casts nozzle
Die cavity flow field is reasonably distributed, and the stability of the otherwise quality of strip product and casting production process is difficult to ensure that.And cast nozzle knot
Structure and assembling are the critical components for affecting nozzle cavity flow field and thermo parameters method.Accordingly, it would be desirable to research and develop a kind of cooling capacity
Higher, nozzle cavity flow field is distributed more reasonably new casting nozzle.
Content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of casting casting nozzle, for solving
In prior art, the distribution of nozzle cavity flow field is chaotic, rate of cooling is slow in molten metal strip casting process, the defect of poor product quality.
For achieving the above object and other related purposes, the present invention provides a kind of casting and casts nozzle, it is characterised in that：Including casting
Nozzle body, the both sides of the casting nozzle body are provided with molten metal runner, are formed and metal between casting nozzle body portion and two rolls
The corresponding two molten metal circulation passages of liquid runner, two molten metal circulation passages converge in front of casting nozzle body.
The invention has the beneficial effects as follows：Casting nozzle body forms molten metal circulation passage with roller surface, and molten metal is by metal
Liquid runner enters the rectification that molten metal circulation passage realizes molten metal, is conducive to molten metal continuously stably to circulate, and
Thickness during molten metal circulation is reduced by molten metal circulation passage, is close to roll when molten metal is by the molten metal circulation passage
Roller surface, is conducive to the quick cooling of molten metal.
Further, the casting nozzle body both sides are provided with casting nozzle wall, are formed described between the casting nozzle wall and casting nozzle body
Molten metal runner.
Further, the casting nozzle body portion is conduction part, to be provided with cooling water flow conduits in the conduction part.
Further, the conduction part periphery is provided with cooling wall, forms the cooling water between cooling wall and the conduction part
Runner, forms the molten metal circulation passage between the cooling wall and two roller surfaces.
Further, the conduction part both sides and cooling wall both sides are curved.
Further, the conduction part is gradually reduced by rear to front width.
Further, the flow direction of the cooling water flow conduits is perpendicular to casting nozzle body length direction.
Using the beneficial effect of above-mentioned further scheme it is：Cooling water flow conduits are set, are conducive to improving on the outside of cooling wall
The rate of cooling of molten metal, cooling water is flowed along roll axial direction, not only so that the molten metal in molten metal circulation passage can
With sufficiently cool, and it is easy to cooling water injection and discharges, simple to operation.
Further, the molten metal circulation passage is the curved channel for adapting to roller surface.
Further, the casting nozzle body is equal with the even width of the molten metal circulation passage that roll is formed, mobile casting nozzle
Body adjusts the width of molten metal circulation passage closer or far from roller central line.
Using the beneficial effect of above-mentioned further scheme it is：Using the runner of arcuate structure, be conducive to cooling wall with roll
Outer wall forms molten metal circulation passage in uniform thickness so that molten metal uniformly flows cooling, and adopts arcuate structure, adjusts
The distance between section casting nozzle body and roller central line just can adjust the thickness of molten metal circulation passage, adjust side simple to operate
Just.
Description of the drawings
Fig. 1 is shown as the structural representation of the embodiment of the present invention；
Fig. 2 is shown as the operating diagram of the embodiment of the present invention.
Piece mark explanation
1 casting nozzle wall；
2 molten metal runners；
3 cooling walls；
4 cooling water flow conduits；
5 casting nozzle bodies；
6 rolls；
7 molten metals；
8 molten metal circulation passages；
9 roller central lines.
Specific embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification
Disclosed content understands other advantages of the present invention and effect easily.The present invention can also pass through in addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Various modifications and changes are carried out under the spirit of the present invention.
It should be noted that in this specification cited as " on ", D score, "left", "right", "front", "rear" " centre "
And the term of " " etc., be merely convenient to describe understands, and is not used to limit the enforceable scope of the present invention, its relativeness
Be altered or modified, under no essence change technology contents, when being also considered as the enforceable category of the present invention.
As depicted in figs. 1 and 2, the casting casting nozzle of the present invention, is applied to double rod castings of strip steel, including casting nozzle body 5, casting
The both sides of nozzle body 5 are provided with molten metal runner 2, and 5 both sides of casting nozzle body are provided with casting nozzle wall 1, casting nozzle wall 1 and casting nozzle body 5 it
Between form molten metal runner 2.5 front portion of casting nozzle body and formation two metal corresponding with molten metal runner 2 between two rolls 6
Liquid circulation passage 8, two molten metal circulation passages 8 converge in 5 front of casting nozzle body.The front portion of casting nozzle body 5 is conduction part, draws
Cooling water flow conduits 4 are provided with stream portion, and the periphery of conduction part is provided with cooling wall 3, is formed cold between cooling wall 3 and the conduction part
But water flow passage 4, form molten metal circulation passage 8 between cooling wall 3 and two 6 surfaces of roll.Molten metal runner 2 and molten metal stream
Circulation passage 8 is connected, and molten metal flows through molten metal circulation passage 8 by two molten metal runners 2 after being injected, and two molten metal circulations are logical
Molten metal in road 8 converge after again by passing through between two rolls 6, molten metal in flow process, the note toward in cooling water flow conduits 4
Enter cooling water, be conducive to accelerating the cooling effectiveness of molten metal.
As depicted in figs. 1 and 2, conduction part both sides and 3 both sides of cooling wall are all curved, and be adapted, conduction part by rear extremely
Front width is gradually reduced, and the molten metal circulation passage that cooling wall 3 is formed with roll 6 is the curved channel for adapting to 6 surface of roll,
The arc drain of molten metal is realized, using the passage of arcuate structure, casts the molten metal circulation passage 8 that nozzle body 5 is formed with roll 6
Even width equal, be conducive to molten metal uniform thickness flow so that molten metal uniformly can be cooled down.Casting nozzle body 5 is by rear to front
Width is gradually reduced, and molten metal runner 2 arranges 5 rear portion both sides of casting nozzle body.
As shown in Fig. 2 one of roll 6 is located at the underface of another roll 6, the axially in parallel of two rolls 6 sets
Put, casting nozzle body 5 moves horizontally casting nozzle body 5 near the common roll centre of two rolls 6 between two rolls 6
During line 9, the width of molten metal circulation passage 8 reduces, i.e. the circulation lower thickness of molten metal；Move horizontally casting nozzle body 5 away from
During two 6 common roller central lines 9 of roll, the width of molten metal circulation passage 8 increases, i.e., the circulation thickness of molten metal becomes
Thickness, using the design structure, is conveniently adjusted the width of molten metal circulation passage 8, so as to adjust the circulation thickness of molten metal, improves
The cooling effectiveness of molten metal, simple to operation.
As shown in Fig. 2 the flow direction of cooling water flow conduits 4 perpendicular to casting nozzle body 5 length direction, i.e. cooling water along roll 6
Axial direction flowing.Cooling water is flowed into by one end of cooling water flow conduits 4, and is flowed out by the other end of cooling water flow conduits 4, cooling
Water flow passage 4 carries out supplement heat rejecter to the molten metal in molten metal circulation passage 8, improves cooling effectiveness.
The present invention causes the lower thickness of molten metal by arranging two molten metal circulation passages 8, improves the cold of molten metal
But efficiency, while playing rectified action to molten metal, prevents molten bath inner metal liquid Flow Field Distribution confusion, improve product quality.Gold
It is close to roller surface in the category liquid process of circulation, quickly cools down beneficial to molten metal, prevent liquid core length in metal bath long, and
Coordinate cooling water flow conduits 4 so that cooling water and molten metal are located at the inner side and outer side of cooling wall 3 respectively, by the stream of cooling water
The ability of the dynamic quick cooling for further increasing molten metal.The casting casting nozzle simple structure, mounting and adjusting are simple to operation.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage for knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
All equivalent modifications for becoming or change, must be covered by the claim of the present invention.
Claims (9)
1. nozzle is cast in a kind of casting, is applied to the double-roller rolling of steel band, it is characterised in that：Including casting nozzle body, the casting nozzle body
Both sides be provided with molten metal runner, form two metal corresponding with molten metal runner between casting nozzle body portion and two rolls
Liquid circulation passage, two molten metal circulation passages converge in front of casting nozzle body.
2. nozzle is cast in a kind of casting according to claim 1, it is characterised in that：The casting nozzle body both sides are provided with casting nozzle
Wall, forms the molten metal runner between the casting nozzle wall and casting nozzle body.
3. nozzle is cast in a kind of casting according to claim 1, it is characterised in that：The casting nozzle body portion is conduction part, institute
State in conduction part and be provided with cooling water flow conduits.
4. nozzle is cast in a kind of casting according to claim 3, it is characterised in that：The conduction part periphery is provided with cooling wall,
The cooling water flow conduits are formed between cooling wall and the conduction part, form the gold between the cooling wall and two roller surfaces
Category liquid circulation passage.
5. nozzle is cast in a kind of casting according to claim 4, it is characterised in that：The conduction part both sides and cooling wall both sides are in
Arc.
6. nozzle is cast in a kind of casting according to claim 3, it is characterised in that：The conduction part is gradually subtracted by rear to front width
Little.
7. nozzle is cast in a kind of casting according to claim 3, it is characterised in that：The flow direction of the cooling water flow conduits is perpendicular to casting
Nozzle body length direction.
8. nozzle is cast in a kind of casting according to claim 1, it is characterised in that：The molten metal circulation passage is and roll table
The curved channel that face adapts to.
9. nozzle is cast in a kind of casting according to claim 1, it is characterised in that：The metal that the casting nozzle body is formed with roll
The even width of liquid circulation passage is equal, and mobile casting nozzle body is closer or far from roller central line adjustment molten metal circulation passage
Width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884313.7A CN106424617B (en) | 2016-10-10 | 2016-10-10 | A kind of casting casting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884313.7A CN106424617B (en) | 2016-10-10 | 2016-10-10 | A kind of casting casting nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106424617A true CN106424617A (en) | 2017-02-22 |
| CN106424617B CN106424617B (en) | 2019-03-22 |
Family
ID=58172278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884313.7A Active CN106424617B (en) | 2016-10-10 | 2016-10-10 | A kind of casting casting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106424617B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104320A (en) * | 1985-08-23 | 1987-02-18 | 石川岛播磨重工业株式会社 | Dual roll type continuous casting machine |
| JPH06114506A (en) * | 1992-10-09 | 1994-04-26 | Nippon Steel Corp | Method and apparatus for continuously casting strip |
| CN1241152A (en) * | 1997-02-28 | 2000-01-12 | 西门子公司 | Device and method for casting metal strips, especially steel, in double roller continuous casting machines |
| KR20020063874A (en) * | 1999-10-06 | 2002-08-05 | 페쉬니 레날루 | Continuous casting roll for metal strip comprising a cooling circuit |
| CN206065353U (en) * | 2016-10-10 | 2017-04-05 | 中冶赛迪工程技术股份有限公司 | A kind of casting lip |
-
2016
- 2016-10-10 CN CN201610884313.7A patent/CN106424617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104320A (en) * | 1985-08-23 | 1987-02-18 | 石川岛播磨重工业株式会社 | Dual roll type continuous casting machine |
| JPH06114506A (en) * | 1992-10-09 | 1994-04-26 | Nippon Steel Corp | Method and apparatus for continuously casting strip |
| CN1241152A (en) * | 1997-02-28 | 2000-01-12 | 西门子公司 | Device and method for casting metal strips, especially steel, in double roller continuous casting machines |
| KR20020063874A (en) * | 1999-10-06 | 2002-08-05 | 페쉬니 레날루 | Continuous casting roll for metal strip comprising a cooling circuit |
| CN206065353U (en) * | 2016-10-10 | 2017-04-05 | 中冶赛迪工程技术股份有限公司 | A kind of casting lip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106424617B (en) | 2019-03-22 |
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