CN101028650A - Intermediate bag with molten metal return-guide and split apparatus - Google Patents
Intermediate bag with molten metal return-guide and split apparatus Download PDFInfo
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- CN101028650A CN101028650A CN 200710097281 CN200710097281A CN101028650A CN 101028650 A CN101028650 A CN 101028650A CN 200710097281 CN200710097281 CN 200710097281 CN 200710097281 A CN200710097281 A CN 200710097281A CN 101028650 A CN101028650 A CN 101028650A
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- tundish
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Abstract
A pouring ladle with guiding by-pass unit of molten steel is composed of a main body with sprue on its bottom, a slag retaining wall to divide said main body into injection region and pouring region, a guiding by-pass pipe consisting of beginning, middle and final segments, a turbulent flower controller, and a Y-shaped gas curtain wall communicated with external gas source.
Description
Technical field
The present invention relates to a kind of treatment facility of motlten metal, particularly a kind of have a tundish that multithread strand molten steel is led part flow arrangement.
Background technology
Cut off rarely in the above square billet tundish of steel-making continuous casting three streams at present and lead dividing technology to adopting.Mean residence time and the time difference in distribution of injecting the stream molten steel arrival mouth of a river, medial and lateral are bigger, particularly when adopting the tundish of five streams, six streams, eight streams, the stroke at the mouth of a river was long outside invar water arrived, the time is long, the temperature drop of molten steel is just big, often cause liquid steel temperature too low and cause and freeze, thus can have influence on continuous casting normally draw steel.On the other hand, also can arrive short, the time weak point of stroke at the inboard mouth of a river because of molten steel, impurity in the molten steel and gas have little time to get rid of, and cause the billet quality of inboard mouth of a river cast undesirable.This still can remedy in the operation of rolling for the producer that produces general steel, if but be unallowed to the producer that produces extra-fine steel kinds such as stainless steel, bearing steel.
Chinese patent literature CN2465839Y discloses a kind of continuous casting multithread pans partition wall, form by the pans tank skin with at the bottom of having the pans jar at the mouth of a river, wherein between the impact zone of pans and stream, be arranged with partition wall, on partition wall, have several acclivitous steel discharging holes, and on same straight line, each steel discharging hole does not all have certain directionality to steel discharging hole.The prior art forms a molten steel circulating reflux district by the optimization to molten steel flow field, temperature field in the pans in pans, be mingled with content to reduce in the steel, improves the cleannes of molten steel.
In addition, also have in the prior art in tundish and to adopt retaining dam and argon gas air curtain to remove impurity in the molten steel.For example disclosed about the tundish retaining dam of blowing in Chinese patent literature CN2863314Y, wherein relate to and adopt band pressure argon gas to pass air brick in the continuous casting tundish, to form the retaining dam of blowing and blow with the tundish of removing impurity in the molten steel and keep off the dam device.
Relate to a kind of turbulence inhibitor among same Patent power people's the Chinese patent literature CN2863315Y, employing be to insert in the controller bottom to blow to annotate the anti-turbulence device that argon gas makes the air brick by wherein.
But above relevant tundish patented technology still can not solve the problem that multithread tundish molten steel arrives the mouth of a river, the interior outside simultaneously.Also just can not solve the outer effluent easy freezing of multithread tundish, the problem of the many defectives of interior effluent strand at all.Show than flow field of molten steel only bigger improvement is arranged with the tundish of slag blocking wall with turbulence inhibitor and slag blocking wall by digital-to-analogue result of calculations to five stream tundish, the dead space volume minimizing, the mouth of a river, interior outside molten steel time of staying difference has minimizing, but still differs bigger.People such as Wang Jianjun professor show in " tundish metallurgy " book and also point out: the multithread tundish be difficult to by be provided with simultaneously slag blocking wall, dam solve in the problem of outside mouth of a river molten steel time of staying equilibrium.This is because the shape and structure of multithread tundish determines.The injection stream of multithread tundish is general in the centre of tundish, and the distance of injecting between the stream and the inboard mouth of a river is short, and very long apart from the distance at the mouth of a river, the outside.The horizontal range of each mouth of a river and injection stream differs very big, also not so has nothing in common with each other so the mean residence time of each stream and the time of staying distribute.
Therefore, in fact there is a kind of demand in the prior art, the problem at the mouth of a river, the outside in the injection stream molten steel that expectation can solve multithread square billet tundish can not arrive simultaneously, though the also mouth of a river, outside mean residence time basically identical in the molten steel, and the time of staying prolong to some extent.The molten steel dead space volume of also expecting tundish reduces as far as possible.Also expectation can make the air purge of molten steel through air curtain barricade wall simultaneously, allows the large inclusions come-up enter in the slag, makes the metallurgical effect of tundish improve, and improves the billet quality of being produced.
Summary of the invention
Technical problem to be solved by this invention is that the above strand tundish of multithread injects the problem that the stream molten steel arrives the too big and time of staying irrational distribution of the mouth of a river, medial and lateral mean residence time difference.The technical problem that the present invention further solves is further to improve the ability of removing the impurity in the molten steel when solving the problems of the technologies described above.
For solving above-mentioned technical problem of the present invention, of the present invention have a tundish that molten steel is led part flow arrangement, the slotted body that comprises symmetry or asymmetrical shape, with the mouth of a river that is arranged on the body bottom surface, it is characterized by and a slag blocking wall is set in described slotted body described inside groove is divided into injects stream district and pouring area, described injection stream district is in the flute profile bag, and the mouth of a river on the described Zhong Bao bottom surface is in described pouring area; Be provided with at described pouring area and connect inject the stream district and to lead isocon to what extended at the mouth of a river, both sides; On described slag blocking wall, form and be communicated with described injection stream district and described through hole of leading the isocon inner chamber; On described isocon sidewall, form and be communicated with described isocon inner chamber and other regional diffluence pass of described mouth of a river district.
Described injection stream district is made of a described flute profile bag part and described slag blocking wall, accepts the molten steel that injects from ladle.
Every side is described leads that described diffluence pass on the isocon is respectively corresponding to be provided with between per two mouths of a river.
For being provided with the described mouth of a river of even number tundish, on slag blocking wall, have without the described isocon of leading, directly be communicated with the aperture of described injection stream district and described pouring area.Described aperture is 1～2.
As required, the described isocon of leading can be made up of the isocon parts of leading of detachable more piece member, described detachable more piece member lead the isocon parts be by with first section of this slag blocking wall adjacency, middle connecting section, the compositions such as latter end of the interlude of band diffluence pass and band diffluence pass.They have the cross section endoporus of consistent parallelogram, and have the end face interface that matches each other.
Described injection stream also is provided with a turbulence inhibitor in the district.
Described turbulence inhibitor has the sidewall that surrounds, and a series of strips is set on described turbulence inhibitor bottom surface, end face is the projection of arc, and rectangular direction and steel flow are to intersecting.
Tundish of the present invention also includes the corresponding air curtain barricade wall that joins of each diffluence pass of leading isocon with this.
Described air curtain barricade wall is the triadius type of Y type substantially, the two fork end in wherein said Y type top abut to described leading on the corresponding diffluence pass of isocon, to constitute a partial closure district, the bottom one relative with the both ends of this pair fork stuck and formed the connecting hole that joins with external air source.
Technique scheme of the present invention is compared with prior art: owing to inject the stream district at the multithread tundish turbulence inhibitor and slag blocking wall are set.Make turbulence inhibitor dissipate the most of energy that injects stream, reduce the molten steel disturbance, form turbulent flow, avoid winding slag and gas to enter pouring area; The slag retaining work that slag blocking wall will inject stream district's top layer can not enter pouring area, surpasses the overflow liquid level even inject stream district molten steel face, and bag was outer and do not enter pouring area during its top layer slag also can only be discharged to by overflow lip.Slag blocking wall makes and injects stream district molten steel and can flow out by leading isocon, make molten steel be distributed to substantially simultaneously in the mouth of a river, the outside.1～2 aperture is opened in the barricade front of even number multithread tundish, enlivens molten steel, reduces the dead band.Lead each diffluence pass place of isocon and arrange triadius type air curtain barricade wall, air curtain barricade wall two prongs and lead isocon even at the cost of one's life form a partial closure district, have prolonged the time of staying at the molten steel arrival mouth of a river; Triadius type air curtain barricade wall ejection gas curtain is sealing or semi-enclosed, all will pass through air purge by the molten steel of leading the diffluence pass outflow, does not have the dead angle, and the field trash of larger particles can both fully float and enter in the slag in the molten steel.Therefore, adopt this kind to lead the multithread tundish that dividing technology cooperates the trident air curtain barricade wall, its metallurgical effect can reach desirable degree.
Description of drawings
Fig. 1 is the schematic top plan view that molten steel is led the tundish of part flow arrangement that has by preferred embodiment of the present invention,
Fig. 2 a is the front view that is used for presentation graphs 1 slag blocking wall,
Fig. 2 b is the vertical view that is used for presentation graphs 1 slag blocking wall,
Fig. 3 a is in order to the schematic diagram of leading isocon in the presentation graphs 1, and it is the view along one side of the left side among Fig. 1 over against the horizontal direction of diffluence pass 32;
Fig. 3 b is along the cutaway view of the direction of arrow among Fig. 3 a, to show the cross sectional shape of diffluence pass;
Fig. 4 a is the vertical view in order to the triadius type air curtain barricade wall in the presentation graphs 1;
Fig. 4 b is the partial view that the width of cloth along the horizontal direction of this Fig. 4 a partial top view has amplified;
Fig. 5 a is the vertical view in order to the turbulence inhibitor in the presentation graphs 1;
Fig. 5 b is along the profile of the medium line direction of arrow among Fig. 5 a.
Reference numeral among the figure is expressed as: the body of 1-tundish, and the 2-mouth of a river, 3-injects the stream district, the 4-pouring area, 10-turbulence inhibitor, 20-slag blocking wall, the aperture of 21-slag blocking wall, 202, the sidewall of 203-slag blocking wall, the 204-through hole, 30-leads isocon, 31-leads the end face interface of isocon, 32-diffluence pass, 33-are led the endoporus of isocon, the 40-air curtain barricade wall, the oral area of 101-turbulence inhibitor, the projection of 102-turbulence inhibitor bottom, 301-leads first section of isocon, and 302-leads the middle connecting section of isocon, 303-leads the interlude that has diffluence pass of isocon, 304-leads the latter end of isocon, 401, the both ends of 402-air curtain barricade wall body of wall, the 404-connecting hole.
The specific embodiment
Referring now to accompanying drawing of the present invention, and have molten steel and lead the tundish of part flow arrangement and do more detailed explanation of the present invention in conjunction with specific embodiments.
As shown in fig. 1, lead the tundish of part flow arrangement for a molten steel with 4 diffluence pass of the present invention that exemplifies.Be shown as the schematic top plan view of this tundish among Fig. 1.The slotted body 1 that comprises symmetric shape, with the mouth of a river 2 that is arranged on body 1 bottom surface, a slag blocking wall 20 wherein is set at the middle part of described slotted body 1 inside groove described inside groove is divided into injection stream district 3 and pouring area 4, described injection stream district 3 is in described inside groove middle part, and the mouth of a river 2 on described body 1 bottom surface is in described pouring area 4; Be provided with in abutting connection with described slag blocking wall 20 and to what extended both sides at described pouring area 4 and lead isocon 30; On described slag blocking wall 20, form and be communicated with described injection stream district 3 and described through hole 204 of leading isocon 30 inner chambers; Form described isocon 30 inner chambers and described pouring area 4 other the regional diffluence pass 32 of leading of connection on isocon 30 sidewalls described leading.The described respectively corresponding setting of leading on the isocon 30 between per two mouths of a river 2 of described diffluence pass 32 of every side.That is to say that for three, four stream square billet tundish, the described isocon 30 of leading of every side only needs to establish a described diffluence pass 32 between the interior outside; And for five, six stream square billet tundish, the described isocon 30 of leading of every side need be provided with two described diffluence pass 32, two described diffluence pass 32 positions respectively between inboard first mouth of a river and inboard second mouth of a river and between inboard second mouth of a river (two) and the mouth of a river, the outside; By that analogy.Self-evident, the direct contact position of Zhou Fanyu molten steel all is equipped with resistant to elevated temperatures refractory material in the body 1.
Described injection stream district 3 is made of the outside sidewall that protrudes in described slotted body 1 middle part and the described slag blocking wall 20 of the sidewall that is connected this projection, and wherein said slag blocking wall 20 has the sidewall 202,203 (seeing Fig. 2 a and Fig. 2 b) that bends inwards; Described through hole 204 is arranged on the sidewall 202,203 of described slag blocking wall 20 on demand from inside to outside, and they are passages of upstream steel flow guide isocon 30.The height of described slag blocking wall 20 exceeds tundish overflow liquid level, the described overflow liquid level that the sidewall height that outwards protrude at 1 middle part of slotted body described in the present embodiment is designed to be scheduled to.The height that described slag blocking wall 20 exceeds described overflow liquid level is designed between 30～50 millimeters proper.On slag blocking wall 20, have without the described isocon 30 of leading, directly be communicated with the aperture 21 in described injection stream district 3 and described mouth of a river district 4.The effect of slag blocking wall 20 is except injecting most slags retainings that stream brings in injecting stream district 3, in addition also only by with lead the through hole 204 that isocon 30 is connected and be distributed to each mouth of a river 2 substantially simultaneously injecting the stream molten steel.For the slag blocking wall 20 of the even number multithread square billet tundish of present embodiment, positive aperture 21 plays the molten steel between the effluents in active two, in order to improve flow field herein.
The described isocon 30 of leading can be but needn't be made up of the isocon 30 of leading of detachable more piece member.Adopting leading isocon 30 and can being linked to be the multithread molten steel by the demand assembly with identical standarized component and leading isocon of detachable more piece member, for example is 3,4, and the shunting configuration is led in the multithread of 5 streams etc.
Shown in Fig. 3 a is a kind of schematic diagram of leading isocon 30 configurations that is applicable to six stream molten steel, and it has comprised the most basic composed component of detachable more piece member.Fig. 3 b be along among Fig. 1 over against a width of cloth explanatory view of the horizontal direction of diffluence pass 32.
The detachable more piece member here lead isocon 30 be by with adjacent one first section 301 of this slag blocking wall 20; Be particularly suitable for adjusting the middle connecting section 302 of variation length; Having the interlude 303 of diffluence pass and the latter end with closed end 304 of band diffluence pass forms.See that as in Fig. 3 b, knowing they have the cross section endoporus 33 of parallelogram unanimous on the whole, schematically show in addition they between the end face interface 31 that matches of junction.The end face interface 31 that matches in this junction can be any suitable mode in the prior art.
In addition, can also be provided with a turbulence inhibitor 10 in the injection stream district 3.Turbulence inhibitor 10 of the present invention has the sidewall that surrounds, and is provided with at described sidewall upper limb that level is inwardly shunk the oral area 101 of extension (seeing Fig. 5 a and Fig. 5 b) and a series of strips, the end face that are arranged on the bottom surface are circular-arc projection 102.This level is inwardly shunk the oral area 101 of extension, inside and outside MOLTEN STEEL FLOW and/or stirring is played the effect of damping in steel pouring process.And a series of projections 102 on the bottom surface also have the move effect of horizontal damping of pair molten steel, also can increase the intensity of bottom surface to a certain extent.Shown in Fig. 5 a is a kind of example of rectangular configuration, and it also can be other any suitable shape certainly.
Also include each diffluence pass 32 each corresponding triadius type air curtain barricade wall 40 that join of leading isocon 30 with this in the tundish.Promptly as representing among Fig. 4 that triadius type air curtain barricade wall 40 is the Y type substantially and (sees Fig. 4 a).The both ends 401,402 of the two forks in top abut to described leading near the isocon 30 corresponding diffluence pass 32 described lead outside the sidewall of isocon 30, to constitute the isolated area of a sealing.The bottom one relative with the both ends 401,402 of this pair fork stuck and made to have the connecting hole 404 that joins with external air source.During operation, around the isolated area of this sealing, can form the curtain barricade of an argon stream.The molten steel from diffluence pass 32 outflows via leading part flow arrangement again through the air purge of air curtain barricade wall argon gas curtain, then can make oarse-grained inclusion floating enter in the slag, and the metallurgical effect of tundish is improved, and the billet quality that order is produced is improved.
Though the present invention is described with reference to the various characteristics with single example and selectable combination, the present invention is not limited to for example concrete of the description of doing.Self-evident, for the purpose that realizes invention, many modifications of narration being done for the adaptation actual conditions are included within the scope of these claims of doing.
Claims (11)
1. one kind has the tundish that molten steel is led part flow arrangement, comprise symmetric shape or asymmetrical slotted body 1, and the mouth of a river (2) on body (1) bottom surface, it is characterized by body (1) is set in described slotted body (1), a slag blocking wall 20 is divided into described inside groove to inject to flow distinguishes (3) and pouring area (4), described injection stream district (3) is in described inside groove, and the mouth of a river (2) on described body (1) bottom surface is in described pouring area (4); Be provided with at described pouring area (4) and connect described injection stream district (3) and to lead isocon (30) to what extended both sides; On described slag blocking wall (20), form and be communicated with described injection stream district (3) and described through hole (204) of leading isocon (30) inner chamber; Form described isocon (30) inner chamber and other the regional diffluence pass (32) of described pouring area (4) of leading of connection on isocon (30) sidewall described leading.
2. press the tundish of claim 1, it is characterized by described injection stream district (3) is made of the sidewall of the outside protrusion in described slotted body (1) middle part and the described slag blocking wall (20) of the sidewall that is connected this projection, wherein said slag blocking wall (20) has the sidewall (202,203) that bends inwards; Described through hole (204) is arranged on the sidewall (202,203) of described slag blocking wall (20) with being inclined upwardly from inside to outside on demand.
3. by the tundish of claim 1, it is characterized by the described respectively corresponding setting of leading on the isocon (30) between per two mouths of a river (2) of described diffluence pass (32) of every side.
4. press the tundish of claim 1, it is characterized by for the tundish that is provided with the described mouth of a river of even number (2), on slag blocking wall (20), have without the described isocon (30) of leading, directly be communicated with the aperture (21) of described injection stream district (3) and described pouring area (4).
5. by the tundish of claim 4, it is characterized by described aperture (21) is 1～5.
6. press the tundish of claim 1, it is characterized by the wherein said isocon (30) of leading is made up of isocon (30) parts of leading of detachable more piece member, described detachable more piece member lead isocon (30) be by with first section (301) of this slag blocking wall (20) adjacency, interlude (302), the latter end compositions such as (304) of section (303) and band diffluence pass (32) between the middle connection of band diffluence pass (32).
7. by the tundish of claim 6, it is characterized by described first section (301), middle connecting section (302), the interlude (303) of band diffluence pass has consistent cross section endoporus with the latter end (304) of band diffluence pass, and has the end face interface that matches each other.
8. by the tundish of claim 1, it is characterized by wherein said injection stream district (3) interior molten steel impact site and also be provided with a turbulence inhibitor (10).
9. press the tundish of claim 8, it is characterized by described turbulence inhibitor (10) and have the sidewall that surrounds, be provided with level at described sidewall upper limb and inwardly shrink the oral area of extension (101), a series of strips are set on described turbulence inhibitor (10) bottom surface, end face is the projection (102) of arc surface.
10. by tundish one of any in the claim 1 to 9, it is characterized by and wherein also include each corresponding air curtain barricade wall that joins of each diffluence pass (32) of leading isocon (30) with this.
11. tundish by claim 10, it is characterized by the triadius type that described air curtain barricade wall is the Y type substantially, the two fork end (401 in wherein said Y type top, 402) abut to described leading on the corresponding diffluence pass (32) of isocon (30), to constitute a partial closure district, the bottom one relative with the both ends (401,402) of this pair fork stuck and formed the connecting hole (404) that joins with external air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100972817A CN100453209C (en) | 2007-04-29 | 2007-04-29 | Intermediate bag with molten metal return-guide and split apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100972817A CN100453209C (en) | 2007-04-29 | 2007-04-29 | Intermediate bag with molten metal return-guide and split apparatus |
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| Publication Number | Publication Date |
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| CN101028650A true CN101028650A (en) | 2007-09-05 |
| CN100453209C CN100453209C (en) | 2009-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100972817A Active CN100453209C (en) | 2007-04-29 | 2007-04-29 | Intermediate bag with molten metal return-guide and split apparatus |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502877B (en) * | 2009-02-27 | 2010-10-13 | 莱芜钢铁股份有限公司 | Baffle for special-shaped blank continuous casting machine tundish and preparation method thereof |
| CN101474664B (en) * | 2009-01-19 | 2010-12-29 | 莱芜钢铁股份有限公司 | Flow control device for tundish in special-shaped billet continuous casting machine |
| CN101774014B (en) * | 2008-12-16 | 2012-07-04 | 中国第一重型机械股份公司 | Tundish with baffle wall for vacuum cast ingot |
| CN102873289A (en) * | 2012-10-23 | 2013-01-16 | 江苏南瑞淮胜电缆有限公司 | Open type pouring boiler device for aluminum alloy continuous casting and rolling production line |
| CN103357831A (en) * | 2013-07-30 | 2013-10-23 | 莱芜钢铁集团有限公司 | Tundish multifunctional steady-flow impacting barrel and building method thereof |
| CN103722130A (en) * | 2013-11-27 | 2014-04-16 | 铜陵市经纬流体科技有限公司 | Multi-connector casting slurry dividing mechanism |
| CN104668494A (en) * | 2013-11-26 | 2015-06-03 | 北京科技大学 | Continuous casting tundish for synchronously casting molten steel in double steel ladles |
| CN107812929A (en) * | 2017-11-06 | 2018-03-20 | 重庆大学 | A kind of tundish and its turbulence inhibitor |
| CN111496233A (en) * | 2020-04-29 | 2020-08-07 | 唐山市国亮特殊耐火材料有限公司 | Three-flow slab continuous casting tundish shunting structure and manufacturing method |
| CN115246004A (en) * | 2021-04-28 | 2022-10-28 | 宝山钢铁股份有限公司 | Tundish capable of preventing covering agent from being involved and using method thereof |
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| ZA935963B (en) * | 1992-12-28 | 1994-03-15 | Inland Steel Co | Tundish for molten alloy containing dense undissolved alloying ingredient |
| JPH07164116A (en) * | 1993-12-14 | 1995-06-27 | Nippon Steel Corp | Tundish for continuously casting steel and method of continuously casting steel for using this tundish |
| CN2189994Y (en) * | 1994-02-02 | 1995-02-22 | 上海第三钢铁厂 | Slag stopper for middle ladle |
| FR2777485B1 (en) * | 1998-04-16 | 2000-05-19 | Usinor | NOZZLE FOR INTRODUCING LIQUID METAL INTO A CONTINUOUS CASTING LINGOTIERE OF METALS |
| CN2465839Y (en) * | 2001-01-22 | 2001-12-19 | 谢玉红 | Multiple-strand tundish partition of continuous casting |
| CN2631668Y (en) * | 2003-06-12 | 2004-08-11 | 王有志 | Unitary vessel of continuous casting bakie |
| JP4271551B2 (en) * | 2003-10-29 | 2009-06-03 | 山陽特殊製鋼株式会社 | Continuous casting equipment for high cleanliness steel by tundish |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101774014B (en) * | 2008-12-16 | 2012-07-04 | 中国第一重型机械股份公司 | Tundish with baffle wall for vacuum cast ingot |
| CN101474664B (en) * | 2009-01-19 | 2010-12-29 | 莱芜钢铁股份有限公司 | Flow control device for tundish in special-shaped billet continuous casting machine |
| CN101502877B (en) * | 2009-02-27 | 2010-10-13 | 莱芜钢铁股份有限公司 | Baffle for special-shaped blank continuous casting machine tundish and preparation method thereof |
| CN102873289A (en) * | 2012-10-23 | 2013-01-16 | 江苏南瑞淮胜电缆有限公司 | Open type pouring boiler device for aluminum alloy continuous casting and rolling production line |
| CN103357831A (en) * | 2013-07-30 | 2013-10-23 | 莱芜钢铁集团有限公司 | Tundish multifunctional steady-flow impacting barrel and building method thereof |
| CN104668494A (en) * | 2013-11-26 | 2015-06-03 | 北京科技大学 | Continuous casting tundish for synchronously casting molten steel in double steel ladles |
| CN103722130A (en) * | 2013-11-27 | 2014-04-16 | 铜陵市经纬流体科技有限公司 | Multi-connector casting slurry dividing mechanism |
| CN107812929A (en) * | 2017-11-06 | 2018-03-20 | 重庆大学 | A kind of tundish and its turbulence inhibitor |
| CN111496233A (en) * | 2020-04-29 | 2020-08-07 | 唐山市国亮特殊耐火材料有限公司 | Three-flow slab continuous casting tundish shunting structure and manufacturing method |
| CN115246004A (en) * | 2021-04-28 | 2022-10-28 | 宝山钢铁股份有限公司 | Tundish capable of preventing covering agent from being involved and using method thereof |
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| CN100453209C (en) | 2009-01-21 |
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