CN102873290A - Multi-stage shunting type continuous casting immersive water gap - Google Patents
Multi-stage shunting type continuous casting immersive water gap Download PDFInfo
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- CN102873290A CN102873290A CN201210391635XA CN201210391635A CN102873290A CN 102873290 A CN102873290 A CN 102873290A CN 201210391635X A CN201210391635X A CN 201210391635XA CN 201210391635 A CN201210391635 A CN 201210391635A CN 102873290 A CN102873290 A CN 102873290A
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Abstract
The invention relates to the technical field of continuous casting of steel, in particular to an immersive water gap device for a continuous casting crystallizer. A multi-stage shunting type continuous casting immersive water gap comprises a water gap body which consists of a side wall and a base plate, wherein the upper end of the water gap body is provided with an opening; a perpendicular inner cavity is defined in the body; a side hole penetrating through the side wall is formed in a position, which is close to the upper side of the base plate, of the side wall; at least two pairs of side holes are sequentially formed in the side wall along a perpendicular direction; each pair of side holes is in the same height of the side wall; and a step which is protruded towards the central direction of the inner cavity of the water gap is arranged on the side wall between two adjacent pairs of side holes. By the multi-stage shunting type continuous casting immersive water gap, impact force of steel liquid can be dispersed; under the condition that the intensity of the wall surface of the water gap is guaranteed, the steel liquid is rationally shunted, and damage of impact of the steel liquid to a preliminary condensed blanket shell and interference between the steel liquid and a liquid surface are reduced; and therefore, a flow field in the crystallizer is effectively improved, and the condensation quality of a casting blanket is improved.
Description
Technical field
The present invention relates to the continuous casting technical field of steel, relate in particular to the submersed nozzle device that a kind of continuous cast mold is used.
Background technology
The continuous pouring of steel is the liquid molten steel that will have certain degree of superheat is cooled to the solid-state strand with definite shape continuously by water mold process, in this process, the sleeve pipe that need to have a refractory material to make injects molten steel in the crystallizer from the metallurgical tank of upstream, this refractory material sleeve pipe is called as submersed nozzle.Submersed nozzle is mounted in the tundish base plate and inserts below the mold liquid level, its Main Function is secondary oxidation, nitrogenize, the splash that prevents molten steel, flow pattern and the Temperature Distribution of avoid simultaneously the liquid level slag, regulating Mold, thereby impel the even zero defect growth of base shell in the crystallizer, and reduce gas and non-metallic inclusion in the molten steel as far as possible.Since submersed nozzle for improve slab quality, improve working conditions, stabilizing continuous casting operation and prevent that from all there is significant effect the aspects such as casting billet surface and internal soundness defective, therefore the conticaster in countries in the world is widely used.But, so that submersed nozzle can be brought into play its metallurgy action preferably, just must immersion type water nozzle structure shape reasonable in design.Generally, the planform of submersed nozzle should satisfy following requirement: (1) guarantees good sealing effectiveness, and casting process must not air amount; (2) the beam motion of mouth of a river outlet should be able to relax and wash uniformly solidification front, must not produce large impact to initial solidification shell; (3) impact depth of reduce beam and do not cause the violent rolling of mold liquid level, wall liquid level slag and meniscus are crossed great fluctuation process; (4) remain the high temperature of mold liquid level, promote the base shell rationally to grow; (5) guarantee the uniformity of crystallizer transverse temperature and composition as far as possible.Accordingly, should carry out suitable design to submersed nozzle according to crystallizer cross dimensions, steel grade and casting speed.
Under the prior art, continuous casting crystallizer for plate billet mainly adopts the cast of double-side-hole submersed nozzle, and bloom (referring to that casting blank cross-section size is greater than the square billet of 200mm * 200mm) continuous cast mold can adopt the double-side-hole mouth of a river or the four side opening mouths of a river to pour into a mould.The STH submersed nozzle agent structure that present slab and bloom crystallizer adopt is that upper end open, the bottom that the refractory material compacting forms sealed, the hollow pipe of lateral opening hole, the STH of the central lumen of upper end perforate and close base plate is interconnected, and consists of the flow channel of molten steel when pouring into a mould.During actual cast, the molten steel of upstream metallurgical tank flows into from the inner chamber upper shed of submersed nozzle, decrystallizes in the device from flowing out near the side opening on the sidewall of bottom surface, going forward side by side.Can find by the analysis to the molten steel flow behavior, there are following two unfavorable factors in fact in used STH submersed nozzle: first, mouth of a river side opening limited amount, can not well make molten steel disperse to flow in the crystallizer, so that molten steel is larger to the impact of nascent solidified shell, easily destroy the formation of initial solidification shell, particularly molten steel flow is larger, and this problem will be more outstanding.And for the slab that often waters and square billet for submersed nozzle, hold a plurality of holes at the sidewall of sustained height and can destroy mouth of a river wall intensity, increase mouth of a river damage probability, simultaneously, in order to guarantee preferably flow field, on the sidewall of submersed nozzle sustained height, general slab perforate is diplopore, and square billet mostly is four holes most.The second, for existing immersion type water nozzle structure, when the side opening area hour, the impact strength of molten steel stream strand will be very large, to the impulsive force of initial solidification shell and also can be very strong to the interference of liquid level; And when the area of side opening is larger, molten steel is because gravitate always can be shunted out from the side opening bottom, and part molten steel flow speed is very little on the side opening, even not mobile, this situation is exactly that usually said side opening compactedness is very low, namely side opening effectively utilize area very little, therefore, when molten steel flow is larger, only increase the discharge area of the increase molten steel that the side opening area can not be real, reduce the impact dynamics of molten steel, avoid destruction and the liquid level big ups and downs of initial solidification base shell.
Number be in the utility model patent of CN201603853U at Granted publication, disclose a kind of quadripuntal SEN of putting molten steel turbulence for the cast conventional plate blank, the main technical schemes of this submersed nozzle is: be respectively arranged with not a pair of molten steel at the sustained height hole that spues under hole and a pair of molten steel that spues on the bottom tube wall of mouth of a river body.The side opening of the up and down differing heights of this submersed nozzle is for disperseing molten steel to have certain effect, but because molten steel gravitate, always flow downward, therefore burst impact of the molten steel of side opening stream is still very strong below, the molten steel that the upper face side orifice flow goes out seldom, molten steel well Uniform Dispersion to each side opening.Even following side opening is very little, under the compressing of top-down molten steel gravity, below the impulsive force of side opening molten steel very strong.Therefore, this design can not be fine the molten steel flow of distribution outlet, reduce molten steel to the impact damage of base shell.
Therefore, along with Casting speed generally improves, molten steel flow during cast-in-site also constantly increases, the excessive problem of the molten steel impulsive force that causes when adopting conventional water-gap pouring just seems more outstanding, for addressing this problem, with regard to being necessary the structure of conventional submersed nozzle is improved, with better suitable to the development of modern high-efficient continuous casting technology.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of molten steel impulsive force of disperseing, in the situation that guarantee mouth of a river wall intensity, make molten steel reasonably be dispensed to a plurality of side openings, the impact that reduces molten steel is to the destruction of nascent solidified shell with to the interference of liquid level, effectively improve the flow field in the crystallizer, improve the submersed nozzle of the Solidification Quality of strand.
For solving the problems of the technologies described above, the invention provides a kind of multi-stage diffluence type continuous casting immersion outlet: the mouth of a river body that comprises the upper end open that is surrounded by sidewall and base plate, described body defines a vertical inner chamber, described sidewall offers the side opening that connects sidewall on the position near the base plate top, be provided with in turn at least two contralateral exposure on the described sidewall vertical direction, described each contralateral exposure is in the sustained height of sidewall, and the sidewall between adjacent two contralateral exposure is provided with protruding rank of protruding to mouth of a river lumen centers direction.The problem that the present invention can not effectively utilize for solving the simple side opening of opening of prior art more, a plurality of side openings are divided into a pair of in twos, and hierarchical is arranged on the sidewall from top to bottom, protruding rank are set between every contralateral exposure slows down the molten steel flow velocity for hierarchical and cooperates side opening shunting molten steel, to reach the effect of disperseing preferably the molten steel impulsive force, in the situation that guaranteed mouth of a river wall intensity, make molten steel reasonably be dispensed to a plurality of side openings, the impact that reduces molten steel is to the destruction of nascent solidified shell with to the interference of liquid level, effectively improve the flow field in the crystallizer, improved the Solidification Quality of strand.
As preferably, described side opening is three pairs, be followed successively by from top to bottom the first contralateral exposure, the second contralateral exposure and the 3rd contralateral exposure, sidewall between the first contralateral exposure and the second contralateral exposure is provided with first protruding rank of protruding to mouth of a river lumen centers direction, be provided with second protruding rank of protruding to mouth of a river lumen centers direction between the second contralateral exposure and the 3rd contralateral exposure, the area on described the first protruding rank is greater than the second protruding rank.The first protruding rank are used for guaranteeing that the part molten steel can and flow into the crystallizer from protruding rank inflow the second contralateral exposure, and the second protruding rank are used for guaranteeing that the part molten steel that flows down from inner chamber can enter the 3rd contralateral exposure and flow into crystallizer.
As preferably, the shape of cross section on the described second protruding rank and the first protruding rank is identical with inner chamber, and the Area Ratio of the described second protruding rank, the first protruding rank and inner chamber base plate cross section is 1:2:3.This structure can guarantee to enter the first contralateral exposure the molten steel amount, enter the molten steel amount of the second contralateral exposure and enter the molten steel amount approximately equal of the 3rd contralateral exposure, be very beneficial for the molten steel Uniform Dispersion and flow out, avoid local assault excessive.
As preferably, lower edge and the horizontal direction of described the first contralateral exposure is-10 °～10 ° inclination angle, under described the second contralateral exposure along with horizontal direction be downward 15 ° to 5 ° inclination angle upwards, under the 3rd contralateral exposure along being downward 25 ° to 0 ° inclination angle with horizontal direction.This structure can make the molten steel impact depth of the first contralateral exposure outflow that is in lower end, the mouth of a river be unlikely to excessive, and the molten steel that the 3rd contralateral exposure on being in flows out is also less to the disturbance of liquid level.
As preferably, equal and opposite in direction, the shape of described every contralateral exposure are identical, and each contralateral exposure all along the center line of mouth of a river inner chamber axisymmetricly.It is more even that this structure guarantees that molten steel flows out.
As preferably, described side opening is square with chamfering, and its horizontal length of side is longer than vertical length of side.This structure is guaranteed larger liquid outlet in the situation that guarantee abundant shunting level.
As preferably, under described protruding rank upper surface and the side opening along flushing.Adopt this structure more smooth to the water conservancy diversion of molten steel, better effects if.
As preferably, described protruding rank upper surface is the inclined plane, and described inclined plane is by near the downward-sloping sidewall that extends in lumen centers position, the mouth of a river.This structure can well import the molten steel that flows down from mouth of a river inner chamber the second contralateral exposure and the 3rd contralateral exposure.
As preferably, the cross section of described mouth of a river body is that straight line, the right and left are the flat of camber line for square or both sides, front and back circular, oval, chamfering.
As preferably, described sidewall outer surface is loop overlapping shape and is provided with slag line.This structure can be protected the mouth of a river preferably.
The present invention with respect to the beneficial effect of prior art is:
(1) owing to having adopted the loose structure of protruding rank drainage, therefore molten steel is gone out from the side opening uniform distribution of submersed nozzle, can alleviate impact velocity and the intensity of molten steel, avoid molten steel to the destruction of nascent solidified shell, can also reduce molten steel to the perturbation action of liquid level, prevent that liquid level slag and meniscus place from forming crackle, when particularly pulling rate is higher, the flow-rate ratio of molten steel is larger, and this beneficial effect can be more obvious.
(2) adopt the submersed nozzle of above-mentioned design can make the molten steel Uniform Dispersion to the upper area of crystallizer, be conducive to crystallizer transverse temperature and homogeneity of ingredients, avoided local temperature difference to cause stress cracking and local component segregation.
(3) because said structure can make molten steel flow out from a plurality of side openings uniformly, alleviate the impact dynamics of molten steel, therefore, can effectively reduce the impact depth of molten steel, improve the thermal center (-tre) of molten steel, the floating that is very beneficial for like this field trash is removed, formation that also can the establishment center segregation.
(4) this submersed nozzle design can make molten steel that the impulsive force at the mouth of a river is disperseed, and has alleviated the impact of molten steel to mouth of a river base plate, greatly reduces submersed nozzle and wears the probability that damages at the end, is conducive to the mouth of a river lifting in service life.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of multi-stage diffluence type of the present invention continuous casting immersion outlet.
Accompanying drawing 2 is A-A cutaway view among Fig. 1.
Accompanying drawing 3 is the use state reference map of a kind of multi-stage diffluence type of the present invention continuous casting immersion outlet.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail, obviously, described embodiment only is part embodiment of the present invention.
Embodiment 1:
Referring to accompanying drawing 1～3, a kind of multi-stage diffluence type of the present invention continuous casting immersion outlet, comprise mouth of a river body 1, mouth of a river body 1 is comprised of sidewall 2 and base plate 3, be provided with a circle slag line 4 on the lateral surface of described sidewall 2, slag line 4 degree of depth are 18mm, highly are 130mm, and slag line 4 lower ends are dried up, and mouthful base plate 3 a lower surfaces distance is 120mm.In actual applications, mouth of a river sidewall 2 and base plate 3 generally are to pass through hydrostatic pressing by aluminium carbonaceous or quartziferous refractory material, and slag line 4 adopts preferably zirconium oxide composite material of slag corrosion resistances.The cross section of mouth of a river body 1 is that the both sides, front and back are that straight line, the right and left are the flat of camber line, certainly, can also be other common shapes such as square of circular, ellipse or chamfering.
Described sidewall 2 links to each other with base plate 3, and surrounds the inner chamber 5 of hollow on the vertical direction, described inner chamber 5 upper end open, and the lower end is the base plate 3 of sealing.The shape of cross section of described sidewall 2 and inner chamber 5 can be circle, with the square of chamfering or be up and down the plane, about be the flat of cambered surface.Described sidewall 2 is provided with respectively the first contralateral exposure 6, the second contralateral exposure 7 and the 3rd contralateral exposure 8 in the vertical from bottom to up, described the first contralateral exposure 6, the second contralateral exposure 7 and the 3rd contralateral exposure 8 size shape are identical, structure as a kind of optimization, the shape of described the first contralateral exposure 6, the second contralateral exposure 7 and the 3rd contralateral exposure 8 is square with chamfering, and widthwise edge is grown up in vertical length of side.Described the first contralateral exposure 6 is along mouth of a river lumen centers line two side openings axisymmetricly, and described the second contralateral exposure 7 also is along mouth of a river center line two side openings axisymmetricly, and described the 3rd contralateral exposure 8 is along mouth of a river lumen centers line two side openings axisymmetricly equally.As a kind of structure of optimization, the lower edge of described the first contralateral exposure 6 is-10 ° inclination angle with horizontal direction, and 7 times edges of described the second contralateral exposure and horizontal direction are downward 10 ° inclination angle, and 8 times edges of the 3rd contralateral exposure and horizontal direction are downward 15 ° inclination angle.The lower edge of described the first contralateral exposure 6 is higher than the upper surface of mouth of a river base plate 3, and difference in height is 20mm.
Be provided with the first protruding rank 9 of protruding from mouth of a river sidewall 2 inner surfaces to mouth of a river inner chamber 5 centers between described the first contralateral exposure 6 and the second contralateral exposure 7 on the inwall 2, be provided with the second protruding rank 10 of protruding from mouth of a river sidewall 2 inner surfaces to mouth of a river inner chamber 5 centers on the inwall between described the second contralateral exposure 7 and the 3rd contralateral exposure 8, the described first protruding rank 9 are identical with mouth of a river inner chamber 5 shapes with the second protruding rank 10, and size is different.The inclined-plane that the described first protruding rank 9 and the second protruding rank 10 are tilted down from inner chamber 5 center positions toward sidewall 2, the inclination angle is-15 °, the cross-sectional area on the described first protruding rank 9 is about 2/3rds of mouth of a river inner chamber 5 cross-sectional areas, and the cross-sectional area on the described second protruding rank 10 is about 1/3rd of mouth of a river inner chamber 5 cross-sectional areas.The upper surface on two protruding rank flushes with edge under the side opening.
In the actual casting process, insert in the crystallizer 11 submersed nozzle body 1 lower end, and the liquid level of crystallizer 11 is in the position of slag line 4.Molten steel flows into from submersed nozzle inner chamber 5 upper ends, runs into the second protruding rank 10 of upper surface inclination in the process of flowing downward near the molten steel of sidewall 2 inner surfaces, flows out from the 3rd contralateral exposure 8 under the guide functions on the second protruding rank 10; Remaining molten steel continues to flow downward, and after being in molten steel between terminal and the first protruding rank 9 ends in the second protruding rank 10 and running into the first protruding rank 9, flows out from the second contralateral exposure 7 under the guide functions on the first protruding rank 9; Molten steel near inner chamber 5 centers, the mouth of a river continues to flow downward, until produce bounce-back after running into mouth of a river base plate 3 upper surfaces, and from the first contralateral exposure 6, flow out, this structural design can be distributed the molten steel that flows out in the submersed nozzle very uniformly, make and have very uniformly temperature field and flow field in the crystallizer, reduce impact dynamics and the intensity of molten steel, avoided molten steel to the destruction of nascent solidified shell with to the interference of liquid level, the thermal center (-tre) of molten steel be can also reduce, the floating removal of field trash in the molten steel and alleviating of center segregation are conducive to.
In a word, the present invention is owing to having adopted the loose structure of protruding rank drainage, molten steel is gone out from the side opening uniform distribution of submersed nozzle, can alleviate impact velocity and the intensity of molten steel, avoid molten steel to the destruction of nascent solidified shell, can also reduce molten steel to the perturbation action of liquid level, prevent that liquid level slag and meniscus place from forming crackle, when particularly pulling rate was higher, the flow-rate ratio of molten steel was larger, and this beneficial effect can be more obvious.Adopt the submersed nozzle of above-mentioned design can make the molten steel Uniform Dispersion to the upper area of crystallizer, be conducive to crystallizer transverse temperature and homogeneity of ingredients, avoided local temperature difference to cause stress cracking and local component segregation.Because said structure can make molten steel flow out from a plurality of side openings uniformly, alleviates the impact dynamics of molten steel, therefore, can effectively reduce the impact depth of molten steel, improve the thermal center (-tre) of molten steel, the floating that is very beneficial for like this field trash is removed, formation that also can the establishment center segregation.This submersed nozzle design can make molten steel that the impulsive force at the mouth of a river is disperseed, and has alleviated the impact of molten steel to mouth of a river base plate, greatly reduces submersed nozzle and wears the probability that damages at the end, is conducive to the mouth of a river lifting in service life.
Should be understood that above-described embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. multi-stage diffluence type continuous casting immersion outlet, the mouth of a river body (1) that comprises the upper end open that is surrounded by sidewall (2) and base plate (3), described body (1) defines a vertical inner chamber (5), described sidewall offers the side opening that connects sidewall (2) on the position near base plate (3) top, it is characterized in that: be provided with in turn at least two contralateral exposure on described sidewall (2) vertical direction, described each contralateral exposure is in the sustained height of sidewall, and the sidewall between adjacent two contralateral exposure is provided with protruding rank of protruding to mouth of a river lumen centers direction.
2. multi-stage diffluence type continuous casting immersion outlet according to claim 1, it is characterized in that: described side opening is three pairs, be followed successively by from top to bottom the first contralateral exposure (6), the second contralateral exposure (7) and the 3rd contralateral exposure (8), sidewall between the first contralateral exposure (6) and the second contralateral exposure (7) is provided with first protruding rank (9) of protruding to mouth of a river lumen centers direction, be provided with second protruding rank (10) of protruding to mouth of a river lumen centers direction between the second contralateral exposure (7) and the 3rd contralateral exposure (8), the area on the described first protruding rank (9) is greater than the second protruding rank (10).
3. multi-stage diffluence type continuous casting immersion outlet according to claim 2, it is characterized in that: the shape of cross section on the described second protruding rank (10) and the first protruding rank (9) is identical with inner chamber (5), and the Area Ratio of the described second protruding rank, the first protruding rank and inner chamber base plate cross section is 1:2:3.
4. multi-stage diffluence type continuous casting immersion outlet according to claim 2, it is characterized in that: lower edge and the horizontal direction of described the first contralateral exposure is-10 °～10 ° inclination angle, under described the second contralateral exposure along with horizontal direction be downward 15 ° to 5 ° inclination angle upwards, under the 3rd contralateral exposure along being downward 25 ° to 0 ° inclination angle with horizontal direction.
5. according to claim 1 and 2 or 4 described multi-stage diffluence type continuous casting immersion outlets, it is characterized in that: equal and opposite in direction, the shape of described every contralateral exposure are identical, and each contralateral exposure all along the center line of mouth of a river inner chamber (5) axisymmetricly.
6. multi-stage diffluence type continuous casting immersion outlet according to claim 5 is characterized in that: described side opening is square with chamfering, and its horizontal length of side is longer than vertical length of side.
7. multi-stage diffluence type continuous casting immersion outlet according to claim 1 is characterized in that: under described protruding rank upper surface and the side opening along flushing.
8. according to claim 1 or 7 described multi-stage diffluence type continuous casting immersion outlets, it is characterized in that: described protruding rank upper surface is the inclined plane, and described inclined plane is by near the downward-sloping sidewall (2) that extends to of mouth of a river inner chamber (5) center position.
9. arbitrary described multi-stage diffluence type continuous casting immersion outlet according to claim 1 ~ 4 is characterized in that: the cross section of described mouth of a river body (1) is that straight line, the right and left are the flat of camber line for square or both sides, front and back circular, oval, chamfering.
10. multi-stage diffluence type continuous casting immersion outlet according to claim 1, it is characterized in that: described sidewall (2) outer surface is loop overlapping shape and is provided with slag line (4).
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| CN201210391635XA CN102873290A (en) | 2012-10-16 | 2012-10-16 | Multi-stage shunting type continuous casting immersive water gap |
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| CN201210391635XA CN102873290A (en) | 2012-10-16 | 2012-10-16 | Multi-stage shunting type continuous casting immersive water gap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918918A (en) * | 2019-12-05 | 2020-03-27 | 天津钢铁集团有限公司 | Process method for controlling center carbon segregation of bearing steel casting blank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04231153A (en) * | 1990-12-28 | 1992-08-20 | Nippon Steel Corp | Dipped nozzle for continuous casting |
| JP4456491B2 (en) * | 2005-01-20 | 2010-04-28 | 新日本製鐵株式会社 | Porous immersion nozzle and continuous casting method using the same |
| CN102335738A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Composite submerged nozzle and manufacturing method thereof |
| US20120248157A1 (en) * | 2011-03-31 | 2012-10-04 | Krosaki Harima Corporation | Immersion nozzle for continuous casting |
| CN203292439U (en) * | 2012-10-16 | 2013-11-20 | 中冶南方工程技术有限公司 | Multi-stage shunting type continuous casting immersive nozzle |
-
2012
- 2012-10-16 CN CN201210391635XA patent/CN102873290A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04231153A (en) * | 1990-12-28 | 1992-08-20 | Nippon Steel Corp | Dipped nozzle for continuous casting |
| JP4456491B2 (en) * | 2005-01-20 | 2010-04-28 | 新日本製鐵株式会社 | Porous immersion nozzle and continuous casting method using the same |
| CN102335738A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Composite submerged nozzle and manufacturing method thereof |
| US20120248157A1 (en) * | 2011-03-31 | 2012-10-04 | Krosaki Harima Corporation | Immersion nozzle for continuous casting |
| CN203292439U (en) * | 2012-10-16 | 2013-11-20 | 中冶南方工程技术有限公司 | Multi-stage shunting type continuous casting immersive nozzle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918918A (en) * | 2019-12-05 | 2020-03-27 | 天津钢铁集团有限公司 | Process method for controlling center carbon segregation of bearing steel casting blank |
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Application publication date: 20130116 |