CA2018079C - Pouring tube for feeding molten steel into a continuous casting mold - Google Patents
Pouring tube for feeding molten steel into a continuous casting mold Download PDFInfo
- Publication number
- CA2018079C CA2018079C CA002018079A CA2018079A CA2018079C CA 2018079 C CA2018079 C CA 2018079C CA 002018079 A CA002018079 A CA 002018079A CA 2018079 A CA2018079 A CA 2018079A CA 2018079 C CA2018079 C CA 2018079C
- Authority
- CA
- Canada
- Prior art keywords
- pouring
- outlet openings
- tube
- pouring tube
- bottom piece
- 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.)
- Expired - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 238000009749 continuous casting Methods 0.000 title abstract description 4
- 238000005266 casting Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 abstract description 5
- 238000005406 washing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- B22D11/10—Supplying or treating molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Ink Jet (AREA)
- Jet Pumps And Other Pumps (AREA)
- Furnace Charging Or Discharging (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A pouring tube for feeding molten steel into the pouring zone of a continuous casting mold includes a tube portion connected to a pouring container and an end portion provided with a bottom piece. To ensure safe operation of the pouring tube and an improved flow distribution, the bottom piece has in the direction of outlet openings thereof a width which is smaller than the distance between the walls which form the upper limits of the outlet openings.
Description
~~1.~3(~'~~
BACKGROUND OF THE INVENTION
1. Field of the invention The present invention relates to a pouring tube for feeding molten steel into the pouring zone of a mold consisting of broad side walls and narrow side walls, particularly for casting thin steel slabs. The pouring tube includes a tube portion connected to a pouring container and an end portion which is provided with outlet openings directed toward the narrow side walls and a bottom piece at the end face of the pouring tube.
BACKGROUND OF THE INVENTION
1. Field of the invention The present invention relates to a pouring tube for feeding molten steel into the pouring zone of a mold consisting of broad side walls and narrow side walls, particularly for casting thin steel slabs. The pouring tube includes a tube portion connected to a pouring container and an end portion which is provided with outlet openings directed toward the narrow side walls and a bottom piece at the end face of the pouring tube.
2. Descrit~tion of the Related Art In a pouring tube known from DE-A 37 09 188, to the cylindrical tube portion is connected a flattened end portion having slot-like outlet openings and a bottom piece with a raised inner contour. The extension of the bottom piece in the direction of the outlet openings is greater than the distance between the walls which form the upper limit of the outlet openings.
Although the known pouring tube is of complicated and expensive construction, it is not capable of providing the necessary operating safety and service life because of the high demands made during continuous steel casting. The molten steel emerges from the narrow outlet openings in concentrated form with a kinetic energy which is too high.
As a result, particularly in a thin steel slab casting mold, washings may occur at the strand shell which is still thin and a surge wave may occur in front of the narrow side walls.
Moreover, 'the uneven flow distribution within the mold occurring when pouring with the known pouring tube results in the formation of an irregular surface structure.
The present invention starts from the finding 'that the reason for the non-uniform, unstable molten steel distribution within the mold is the uneven speed with which the molten steel is discharged over the cross-sectional areas of the outlet openings, Since the discharge speed is the greatest at the lower portion of the outlet slot, a strong vortex each is formed underneath the outlet openings and corresponding upwardly directed compensating flows occur in front of the short side walls which lead to a surge wave on the bath surface.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a.
pouring tube for pouring molten steel into a meld, particularly~for casting thin steel slabs, which is simple to manufacture, robust and safe to operate. Also, by providing a better flow distribution, a surge wave on the bath surface and washings in the formed strand shell by the liquid steel are to be substantially reduced or avoided and a cast strand, particularly steel strip, with excellent structure and uniformly free from defects is to be obtained. Moreover, during the initial pouring procedure, splashing and adhering of molten steel to the mold walls are to be avoided.
In accordance with the present invention, the above object is met in a pouring tube of the above-described type by providing the bottom piece having a width between the lower ends of the outlet openings which is at most 80~ of the distance between the inner wall surface of the side wall of the tube at the upper ends of the outlet openings, wherein the bottom piece is substantially flat and lipless adjacent the lower ends of the outlet openings.
As a result, the discharge speed in the region of the lower edge of the outlet openings and, thus, the widening of the molten metal stream resulting in washing of the strand shell are reduced. In addition, the vortices which are formed and the corresponding compensating flows are weaker, so that a better f7_ow release is obtained and the surge waves are substantia7_ly reduced. The novel pouring tube is simple to manufacture and has a long service life.
Although the known pouring tube is of complicated and expensive construction, it is not capable of providing the necessary operating safety and service life because of the high demands made during continuous steel casting. The molten steel emerges from the narrow outlet openings in concentrated form with a kinetic energy which is too high.
As a result, particularly in a thin steel slab casting mold, washings may occur at the strand shell which is still thin and a surge wave may occur in front of the narrow side walls.
Moreover, 'the uneven flow distribution within the mold occurring when pouring with the known pouring tube results in the formation of an irregular surface structure.
The present invention starts from the finding 'that the reason for the non-uniform, unstable molten steel distribution within the mold is the uneven speed with which the molten steel is discharged over the cross-sectional areas of the outlet openings, Since the discharge speed is the greatest at the lower portion of the outlet slot, a strong vortex each is formed underneath the outlet openings and corresponding upwardly directed compensating flows occur in front of the short side walls which lead to a surge wave on the bath surface.
SUMMARY OF THE INVENTION
It is the object of the present invention to provide a.
pouring tube for pouring molten steel into a meld, particularly~for casting thin steel slabs, which is simple to manufacture, robust and safe to operate. Also, by providing a better flow distribution, a surge wave on the bath surface and washings in the formed strand shell by the liquid steel are to be substantially reduced or avoided and a cast strand, particularly steel strip, with excellent structure and uniformly free from defects is to be obtained. Moreover, during the initial pouring procedure, splashing and adhering of molten steel to the mold walls are to be avoided.
In accordance with the present invention, the above object is met in a pouring tube of the above-described type by providing the bottom piece having a width between the lower ends of the outlet openings which is at most 80~ of the distance between the inner wall surface of the side wall of the tube at the upper ends of the outlet openings, wherein the bottom piece is substantially flat and lipless adjacent the lower ends of the outlet openings.
As a result, the discharge speed in the region of the lower edge of the outlet openings and, thus, the widening of the molten metal stream resulting in washing of the strand shell are reduced. In addition, the vortices which are formed and the corresponding compensating flows are weaker, so that a better f7_ow release is obtained and the surge waves are substantia7_ly reduced. The novel pouring tube is simple to manufacture and has a long service life.
In accordance with another feature of the invention, the bottom piece has :in the direction of the outlet openings a width which is between 30~ and 80g of the distance between the walls which define the upper limits of the outlet openings.
The inner surface of the bottom piece may be plane, raised or trough-shap~sd.
In accordance with another development of the invention, the side surfaces of the pouring tube may converge at an angle 'toward the bottom piece.
Alternatively, the side surfaces may extend beyond the width of the bottom piece for guiding the pouring streams.
Finally, the floe distribution can be further improved by reducing the width of the outlet openings in the direction of the bott~~m piece.
For a better und~erstand.ing of the invention, its operating advantages .attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
The inner surface of the bottom piece may be plane, raised or trough-shap~sd.
In accordance with another development of the invention, the side surfaces of the pouring tube may converge at an angle 'toward the bottom piece.
Alternatively, the side surfaces may extend beyond the width of the bottom piece for guiding the pouring streams.
Finally, the floe distribution can be further improved by reducing the width of the outlet openings in the direction of the bott~~m piece.
For a better und~erstand.ing of the invention, its operating advantages .attained by its use, reference should be had to the drawing and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
BRIEF DESCRIPTION OF THE DRAWING
In the drawing:
Fig. 1 is longitudinal sectional view of a continuous casting mold with a pouring tube extending into the pouring zone.
Fig. 2 is a top view of the continuous casting mold of Fig. 1~
Fig. 3 is a sectional view of the pouring tube parallel to the outlet openings Fig. 4 is a sectional view of the pouring tube transversely of the outlet openings and Fig. 5 is a sectional view of another pouring tube parallel to the outlet opening.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As illustrated in Fig. 1 of the drawing, a pouring tube 3 is mounted at the bottom outlet 1 of a pouring container 2.
The pouring tube 3 extends with its lower end into a steel strip casting mold 4 and under the pouring level 5. The ~~~~.d ~'f~
steel strip casting mold 4 has two cooled broad side walls 6 and two narrow side walls 7 which are adjustably arranged between the broad side walls 6. As seen in Figs. 1 and 2, the broad side walls 6 form a widened ;pouring zone 8 extending over a portion of the mold height for receiving the pouring tube 3.
The pouring tube 3 has an upper portion 9 with an approximately circular cross-section and a lower or end portion 10 having an oval shape. Outlet openinc;s 1:1 are arranged in each of the narrow sides of the oval-shaped end of 'the tube 3. The outlet openings 17. are limited 'toward the bottom by a bottom piece 12 whose width a is smaller than the distance b between the walls located thereabove. The width a of the bottom piece advantageously is 30 to 800 of the distance b.
In the embodiment illustrated in Fig. 3, the wide pouring tube walls 13 which arc of flat construction extend at an angle relative to the bottom piece 12.
Alternatively, as shown in Fig. 5, the wide walls 14 of the pouring tube can extend at the full width to the end of the pouring tube, so that additional guiding surfaces 15 are formed in front of the outlet opening.
In the drawing:
Fig. 1 is longitudinal sectional view of a continuous casting mold with a pouring tube extending into the pouring zone.
Fig. 2 is a top view of the continuous casting mold of Fig. 1~
Fig. 3 is a sectional view of the pouring tube parallel to the outlet openings Fig. 4 is a sectional view of the pouring tube transversely of the outlet openings and Fig. 5 is a sectional view of another pouring tube parallel to the outlet opening.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As illustrated in Fig. 1 of the drawing, a pouring tube 3 is mounted at the bottom outlet 1 of a pouring container 2.
The pouring tube 3 extends with its lower end into a steel strip casting mold 4 and under the pouring level 5. The ~~~~.d ~'f~
steel strip casting mold 4 has two cooled broad side walls 6 and two narrow side walls 7 which are adjustably arranged between the broad side walls 6. As seen in Figs. 1 and 2, the broad side walls 6 form a widened ;pouring zone 8 extending over a portion of the mold height for receiving the pouring tube 3.
The pouring tube 3 has an upper portion 9 with an approximately circular cross-section and a lower or end portion 10 having an oval shape. Outlet openinc;s 1:1 are arranged in each of the narrow sides of the oval-shaped end of 'the tube 3. The outlet openings 17. are limited 'toward the bottom by a bottom piece 12 whose width a is smaller than the distance b between the walls located thereabove. The width a of the bottom piece advantageously is 30 to 800 of the distance b.
In the embodiment illustrated in Fig. 3, the wide pouring tube walls 13 which arc of flat construction extend at an angle relative to the bottom piece 12.
Alternatively, as shown in Fig. 5, the wide walls 14 of the pouring tube can extend at the full width to the end of the pouring tube, so that additional guiding surfaces 15 are formed in front of the outlet opening.
The outlet openings 11 are upwardly extending ovals 16.
As can be seen in Fig. ~, the width of the outlet openings 11 may narrow toward the bottom.
The pouring tube according to the present invention may also be used for molds which have shapes different from those described above. Particularly, the mold may have a mold space which becomes continuously narrower toward the mold end.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
As can be seen in Fig. ~, the width of the outlet openings 11 may narrow toward the bottom.
The pouring tube according to the present invention may also be used for molds which have shapes different from those described above. Particularly, the mold may have a mold space which becomes continuously narrower toward the mold end.
While specific embodiments of the invention have been shown and described in detail to illustrate the application of the inventive principles, it will be understood that the invention may be embodied otherwise without departing from such principles.
Claims (6)
1. In a pouring tube for feeding molten steel into a pouring zone of a steel strip casting mold, the mold having broad side walls and narrow side walls connecting the broad side walls, the pouring tube having a side wall with an inner wall surface and including a first tube portion connected to a pouring container and a second end portion connected to the first portion, the end portion defining outlet openings directed toward the narrow-side walls of the mold, each outlet opening having an upper end located in the side wall of the pouring tube and a lower end located in a bottom piece at the end of the pouring tube, the improvement comprising the bottom piece having a width between the lower ends of the outlet openings which is at most 80% of the distance between the inner wall surface of the side wall of the tube at the upper ends of the outlet openings, wherein the bottom piece is substantially flat and lipless adjacent the lower ends of the outlet openings.
2. The pouring tube according to claim 1, wherein the width of the bottom piece between the lower ends of the outlet openings is at least 30% of the distance between the wall portions of the tube at the upper ends of the outlet openings.
3. The pouring tube according to claim 1 or 2, wherein the bottom piece has an upper side, the upper side having a plane shape.
4. The pouring tube according to claim 1, 2 or 3, wherein the second end portion of the tube has side walls extending between the outlet openings, the side walls extending at an angle relative to each other and narrowing toward the bottom piece.
5. The pouring tube according to claim 1, 2 or 3, wherein the second end portion of the tube has side walls extending beyond the width of the bottom piece.
6. The pouring tube according to any one of claims 1 to 5, wherein the outlet openings have a width which narrows from the upper ends toward the lower end thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP3918228.2 | 1989-06-03 | ||
| DE3918228A DE3918228C2 (en) | 1989-06-03 | 1989-06-03 | Immersion pouring tube for introducing molten steel into a continuous casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2018079A1 CA2018079A1 (en) | 1990-12-03 |
| CA2018079C true CA2018079C (en) | 2000-04-04 |
Family
ID=6382053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002018079A Expired - Lifetime CA2018079C (en) | 1989-06-03 | 1990-06-01 | Pouring tube for feeding molten steel into a continuous casting mold |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0403808B1 (en) |
| JP (1) | JPH0327852A (en) |
| KR (1) | KR960003716B1 (en) |
| CN (1) | CN1018339B (en) |
| AT (1) | ATE81046T1 (en) |
| BR (1) | BR9002581A (en) |
| CA (1) | CA2018079C (en) |
| DD (1) | DD294889A5 (en) |
| DE (2) | DE3918228C2 (en) |
| DK (1) | DK0403808T3 (en) |
| ES (1) | ES2035678T3 (en) |
| GR (1) | GR3006098T3 (en) |
| RU (1) | RU1833245C (en) |
| TR (1) | TR24409A (en) |
| UA (1) | UA12309A (en) |
| ZA (1) | ZA904020B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11446734B2 (en) | 2019-05-23 | 2022-09-20 | Vesuvius Group, S.A. | Casting nozzle |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142447C3 (en) * | 1991-06-21 | 1999-09-09 | Mannesmann Ag | Immersion nozzle - thin slab |
| DE4319966A1 (en) * | 1993-06-17 | 1994-12-22 | Didier Werke Ag | Immersion spout |
| US5944261A (en) * | 1994-04-25 | 1999-08-31 | Vesuvius Crucible Company | Casting nozzle with multi-stage flow division |
| US5785880A (en) * | 1994-03-31 | 1998-07-28 | Vesuvius Usa | Submerged entry nozzle |
| UA51734C2 (en) | 1996-10-03 | 2002-12-16 | Візувіус Крусібл Компані | Immersed cup for liquid metal passing and method for letting liquid metal to path through it |
| DE19738385C2 (en) * | 1997-09-03 | 2000-02-24 | Schloemann Siemag Ag | Immersion pouring tube for introducing melt from a casting or intermediate container into a mold |
| DE10130354C1 (en) * | 2001-06-23 | 2003-01-23 | Thyssenkrupp Stahl Ag | Immersion tube used for casting molten metal comprises a tubular section extending from a filling opening for the molten metal, a funnel chamber connected to the tubular section, a removal stream opening, and a collision shoulder |
| DE10203594C1 (en) | 2002-01-23 | 2003-05-15 | Sms Demag Ag | Submerged nozzle for a metallurgical vessel located upstream of a casting device has a cross-section expanding from a circular inlet cross-section to an opening cross-section in the direction of its opening |
| DE102007011253B4 (en) * | 2007-03-08 | 2019-07-11 | Bayerische Motoren Werke Aktiengesellschaft | Production of castings by direct mold filling |
| DE102021130304A1 (en) | 2021-11-19 | 2023-05-25 | Bayerische Motoren Werke Aktiengesellschaft | Liquid metal storage tank |
| CN114799077B (en) * | 2022-04-29 | 2024-07-19 | 哈焊所华通（常州）焊业股份有限公司 | Continuous casting die |
| EP4374986A1 (en) | 2022-11-25 | 2024-05-29 | SMS Concast AG | Continuous casting installation, in particular for casting metallurgical long products, and a casting tube |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1758777A1 (en) * | 1968-08-05 | 1971-04-22 | Demag Ag | Process and casting metal supply for the continuous casting of metal, in particular steel |
| DE2259872A1 (en) * | 1972-12-07 | 1974-06-12 | Ferrocast Fa | Protective foundry compsn for steel melts in moulds - contg flux composed of alkali(ne earth) metal borate expanded perlite and blast furnace slag |
| JPS58107252U (en) * | 1981-12-10 | 1983-07-21 | 品川白煉瓦株式会社 | Immersion nozzle for continuous casting |
| DE3623660A1 (en) * | 1986-07-12 | 1988-01-14 | Thyssen Stahl Ag | FIREPROOF PIPE |
| DE3709188A1 (en) * | 1987-03-20 | 1988-09-29 | Mannesmann Ag | POURING PIPE FOR METALLURGICAL VESSELS |
-
1989
- 1989-06-03 DE DE3918228A patent/DE3918228C2/en not_active Expired - Lifetime
-
1990
- 1990-05-21 EP EP90109626A patent/EP0403808B1/en not_active Expired - Lifetime
- 1990-05-21 ES ES199090109626T patent/ES2035678T3/en not_active Expired - Lifetime
- 1990-05-21 DK DK90109626.3T patent/DK0403808T3/en active
- 1990-05-21 DE DE9090109626T patent/DE59000328D1/en not_active Expired - Lifetime
- 1990-05-21 AT AT90109626T patent/ATE81046T1/en not_active IP Right Cessation
- 1990-05-25 ZA ZA904020A patent/ZA904020B/en unknown
- 1990-05-31 BR BR909002581A patent/BR9002581A/en not_active IP Right Cessation
- 1990-05-31 DD DD90341197A patent/DD294889A5/en not_active IP Right Cessation
- 1990-06-01 JP JP2144275A patent/JPH0327852A/en active Pending
- 1990-06-01 UA UA4830174A patent/UA12309A/en unknown
- 1990-06-01 RU SU904830174A patent/RU1833245C/en active
- 1990-06-01 TR TR90/0509A patent/TR24409A/en unknown
- 1990-06-01 CA CA002018079A patent/CA2018079C/en not_active Expired - Lifetime
- 1990-06-02 CN CN90104135A patent/CN1018339B/en not_active Expired
- 1990-06-04 KR KR90008212A patent/KR960003716B1/en not_active IP Right Cessation
-
1992
- 1992-10-27 GR GR920402427T patent/GR3006098T3/el unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11446734B2 (en) | 2019-05-23 | 2022-09-20 | Vesuvius Group, S.A. | Casting nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59000328D1 (en) | 1992-11-05 |
| CA2018079A1 (en) | 1990-12-03 |
| DE3918228C2 (en) | 1996-11-07 |
| TR24409A (en) | 1991-11-01 |
| CN1047819A (en) | 1990-12-19 |
| KR910000269A (en) | 1991-01-29 |
| UA12309A (en) | 1996-12-25 |
| ATE81046T1 (en) | 1992-10-15 |
| JPH0327852A (en) | 1991-02-06 |
| EP0403808A1 (en) | 1990-12-27 |
| ES2035678T3 (en) | 1993-04-16 |
| BR9002581A (en) | 1991-08-20 |
| GR3006098T3 (en) | 1993-06-21 |
| KR960003716B1 (en) | 1996-03-21 |
| EP0403808B1 (en) | 1992-09-30 |
| DK0403808T3 (en) | 1993-03-08 |
| RU1833245C (en) | 1993-08-07 |
| ZA904020B (en) | 1991-02-27 |
| DD294889A5 (en) | 1991-10-17 |
| CN1018339B (en) | 1992-09-23 |
| DE3918228A1 (en) | 1990-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2018079C (en) | Pouring tube for feeding molten steel into a continuous casting mold | |
| USRE35685E (en) | Impact pad for a continuous caster tundish | |
| US4819840A (en) | Refractory submerged pouring nozzle | |
| US5205343A (en) | Pouring tube for feeding molten steel into a continuous casting mold | |
| CA2093327C (en) | Liquid-cooled mould for continuous casting of steel billets in slab form | |
| US5882577A (en) | Tundish | |
| EP1198315B1 (en) | Impact pad for a tundish | |
| US5311922A (en) | Mold for continuously casting steel strip | |
| US5603860A (en) | Immersed casting tube | |
| CA1268314A (en) | Ingot mold for the continuous casting of metal strip | |
| EP2205769B1 (en) | Metallurgical impact pad | |
| US6186220B1 (en) | Funnel geometry of a mold for the continuous casting of metal | |
| US6390176B1 (en) | Funnel geometry of a mold for the continuous casting of metal | |
| KR19990008455A (en) | Continuous casting mold | |
| US3931850A (en) | Apparatus for feeding and distributing steel melts | |
| CN215614872U (en) | Pouring cup capable of preventing molten steel from rotating | |
| US20030159796A1 (en) | Method for the production of a continously-cast precursor | |
| CN211938935U (en) | Basin type pouring gate structure with flow stabilizing and slag collecting effects | |
| JPH07124720A (en) | Nozzle for continuous casting | |
| KR100530102B1 (en) | Molten steel flow distributing pad for the continuous casting tundish | |
| EP0852166B1 (en) | Discharge nozzle for moulds of continuous casting machines | |
| KR100485404B1 (en) | Partial Immersion Nozzle for Continuous Casting of Thin Slabs | |
| RU2043880C1 (en) | Dead-bottom conical ingot mold for producing steel ingots | |
| MXPA00001227A (en) | Improved contact mould for the continuous casting of steel slabs | |
| JPH10193052A (en) | Immersion nozzle for continuously casting thin and wide cast slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |