AU744237B2 - Device for feeding molten metal - Google Patents
Device for feeding molten metal Download PDFInfo
- Publication number
- AU744237B2 AU744237B2 AU24102/99A AU2410299A AU744237B2 AU 744237 B2 AU744237 B2 AU 744237B2 AU 24102/99 A AU24102/99 A AU 24102/99A AU 2410299 A AU2410299 A AU 2410299A AU 744237 B2 AU744237 B2 AU 744237B2
- Authority
- AU
- Australia
- Prior art keywords
- submerged
- tubes
- casting
- casting tubes
- submerged casting
- 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.)
- Ceased
Links
- 239000002184 metal Substances 0.000 title claims abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 138
- 238000009434 installation Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000012768 molten material Substances 0.000 claims description 9
- 238000009749 continuous casting Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011819 refractory material Substances 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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/113—Treating the molten metal by vacuum treating
-
- 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)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Charging Or Discharging (AREA)
- Coating With Molten Metal (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention relates to a device for feeding molten metal, especially liquid steel, through submerged casting tubes of an intermediate tank in a stationary permanent mold of a continuos slab casting installation. The intermediate tank (21) is configured as a casting chamber (22) fitted with a vacuum pump (27), said casting chamber being connected to a main chamber (23) into which the molten mass (S) is fed from the outside. The floor (24) of the casting chamber (22) is fitted with at least three adjacent submerged casting tubes (31-3n).
Description
72292 Device for feeding molten metal Description The invention relates to a device for feeding molten metal, in particular liquid steel, via submerged casting tubes in a 'tundish, into a stationary permanent mold of a continuous slab casting installation, the tundish being designed as a casting chamber which is provided with a vacuum pump and is connected to a principal chamber, into which the molten material is fed from outside.
A device of this nature is known from FR 2,675,411.
DE 39 29 767 Al has disclosed a casting system for a steel-strip casting installation, in which two casting tubes are provided at a predetermined axial distance on a tundish.
The main outlet openings from the casting tubes are arranged laterally opposite one another. The relatively large casting tubes, which require a widened casting-in area of the permanent mold, represent a drawback of this casting system.
DE-A 24 28 060 has disclosed a continuous casting installation in which (Figure 1) steel flows continuously from a casting ladle into a tundish which has a bottom opening through which the steel flows into a refractory casting tube and, from this tube, into a water-cooled, I- AMENDED SHEET 4% 2 straight, vertically arranged, oscillating permanent mold.
For extremely wide permanent molds, two casting tubes are used (Figure Above the bottom opening, a refractory tube can be moved to a distance from the top edge of the bottom opening, and inert gas can be fed into the casting stream via this tube.
The large geodetic height above the opening of the submerged casting tube and therefore the considerable kinetic energy which acts on the molten steel situated in the permanent mold via a casting tube or two casting tubes constitute drawbacks of this device.
DE 195 12 209 has disclosed a method and a device in which molten metal, in particular steel, is passed via a submerged casting tube which is secured running out from a casting vessel into a vertically oscillating permanent mold.
The cross sectional area of the submerged casting tube is not less than 0.3 times the clear internal cross section of the passage area of the permanent mold. The cross-sectional shape of the submerged casting tube used for this purpose resembles the permanent mold, and the tube therefore has a considerably greater width than thickness. A drawback of this design of the submerged casting tube is the relatively large unsupported area and, in addition, the relatively sharp edges in the area of the narrow sides with regard to the resistance to AMENDED SHEET 3 fracture of the refractory material at the desired wall thickness.
Furthermore, FR 2,675,411 has disclosed a device for feeding molten steel, having a bottom vessel and a top vessel which are connected to one another via a connecting line. A vacuum device, by means of which the molten material can be raised from the bottom vessel, is provided on the cover of the top vessel, and via a submerged nozzle the steel is passed into a permanent mold.
This installation is connected to gas supply elements and is used substantially to treat the steel before it is passed into the permanent mold via a submerged casting tube which is not described in more detail.
The object of the invention is to provide a device for feeding molten metal, in particular liquid steel, in which the. molten material can be fed safely and with little kinetic energy into a permanent mold using simple, inexpensive feed elements and with a high level of operational reliability.
The invention achieves this object by means of the defining features of claim 1. Advantageous refinements of the invention are given in the subclaims.
According to the invention, the molten material is passed into a permanent mold via a tundish which is held under a vacuum via at least three submerged casting tubes AMENDED SHEET w 4 1% 44Z744 1 4 W4 S4-~444 .4 4 <t 4 4411<) 4 4 444 L-U444~4h44 4 which are arranged next to one another. Dividing the total amount of molten material which is to be fed to the permanent mold into a number of partial amounts through a plurality of submerged casting tubes makes it possible to directly influence the direction and quantity of flow in the partial streams while, at the same time, incorporating the largest possible entry cross section for the feed elements into the permanent mold. A large feed cross section combined, at the same time, with a low geodetic height of the liquid level enables a desired, low kinetic energy combined with a minimal penetration depth of the molten material supplied into the permanent mold to be achieved. The use of individual submerged casting tubes and the fact that they are arranged virtually in any desired way makes it possible, at the same time, to directly influence the flow conditions, in particular to set controlled return flows of molten material even in the upper part of the permanent mold.
A further advantage of the device according to the invention is the use of geometrically simple elements, such as the round shape of the submerged casting tubes or virtually round shapes or alternatively rectangular shapes with very similar length/width ratios.
The submerged casting tubes may be arranged in series next to one another on one line. In a further advantageous configuration, the submerged casting tubes are arranged in AMENDED SHEET r~r -E ZO-~V A~W 5 two lines, an odd number of tubes being provided in one line and an even number being provided in the other line. In this case, in addition, the distance between the submerged casting tubes in the central area of the permanent mold can be changed toward the narrow sides. The diameter of the submerged casting tubes may also be varied and adapted to the particular flow conditions.
To influence the flow of the molten material which is supplied, it is also proposed to adapt the angle of the submerged casting tubes to the main axis-of the permanent mold according to the desired conditions of flow. A further variation consists in changing the length of the individual submerged casting tubes. In one variant, the shortest submerged casting tube is in the center of the permanent mold.
Completely different flow conditions are produced if the length of the submerged casting tubes is varied in such a way that the longest submerged casting tube is arranged in the middle of the permanent mold while the shorter submerged casting tubes are arranged in the vicinity of the narrow side walls.
In an advantageous configuration, submerged casting tubes which are rectangular in cross section are proposed, the individual submerged casting tubes, when designed the same way, being secured in a form-fitting manner in the tundish. In functional terms, this produces a submerged AMENDED SHEET w, 6nozzle with a very high width to thickness ratio, yet the individual elements, since they are virtually square, have a particularly long service life.
In a further advantageous configuration, control elements which can be used to vary or even completely close the flow through the individual submerged casting tubes are provided. In this way, the amount of material which flows through can be changed in operation or, in the event of defects occurring in individual submerged casting tubes, the defective tube can be closed altogether without overall operation being impaired.
Furthermore, a quick-acting closure for each individual submerged casting tube is provided for emergencies.
appended Figure 1 Figure 2 Figure 3 One example of the invention is portrayed in the *drawing, in which: shows a plan of the overall installation shows an uneven number of submerged casting tubes with the longest submerged casting tube in the center shows an even number of submerged casting tubes with the shorter submerged casting tube in the center AMENDED SHEET ~V rvs~,r A A A~A S A' V -7 Figure 4 Figure 5 Figure 6 Figure 7 Figure Figure shows submerged casting tubes which diverge outward with respect to the central axis shows submerge casting tubes which diverge with respect to the central axis in the central area and converge in the outer area shows submerged casting tubes in series in one line shows submerged casting tubes of different diameters in one line shows submerged casting tubes in two lines shows non-circular submerged casting tubes in one line with a uniform orientation shows non-circular submerged casting tubes with different orientations shows a plan view and a side view of submerged casting tubes for a bow-type continuous casting installation shows a submerged casting tube with a quickacting closure shows a tundish with blocking device fdr individual submerged casting tubes shows submerged casting tubes which are rectangular in cross section, secured in a form-fitting manner Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 ALl AMENDED SHEET A~r~r~tw& S~ -8 Figure 15 shows rectangular submerged casting tubes with a conical opening.
Figure 1 shows a ladle 11, the bottom opening 12 of which can be closed off by means of a stopper 14. A submerged nozzle 13, which projects into a principal chamber 23 of a tundish 21, is attached to the ladle 11. The tundish 21 also comprises a casting chamber which is arranged at a higher level than the principal chamber and to which a vacuum pump 27 for raising the molten liquid is connected. In the floor 24 of the casting chamber 22 there are bottom openings 25, to which submerged casting tubes 31 to 3n are connected, projecting into a permanent mold 41.
Figure 2 shows the casting chamber 22, on which an odd number of submerged casting tubes 31 to 35, which project into the permanent mold 41, are arranged. The central tube 33 is the longest of these submerged casting tubes 31 to which are arranged in series.
Unlike Figure 2, Figure 3 shows an even number of submerged casting tubes 31 to 34, of which the central tubes 32, 33 are the shortest.
In Figure 4, three submerged casting tubes 31 to 33 are provided, the outer tubes of which diverge conically with respect to the center axis of the permanent mold.
?,AL/AMENDED
SHEET
uJi 4Z!
QWT
-9- In Figure 5, an even number of submerged casting tubes 31 to 34 are provided, the submerged casting tubes converging with respect to one another in pairs 31, 32 and 33, 34.
In Figure 6, an odd number of submerged casting tubes 31 to 33 are arranged in series in one line L 1 the distance al between the tubes in the present case being greater than the distance a 2 from the outer submerged casting tube 31 or 33 from the narrow side 44 of the permanent mold.
In Figure 7, an even number of submerged casting tubes 31 to 34 are arranged in one line L 1 the individual submerged casting tubes 31 to 34 having different diameters; in the present case, the diameter of the middle submerged casting tubes 32, 33 is larger than that of the outer submerged casting tubes 31, 34.
In Figure 8, an odd number of submerged casting tubes 31 to 35 is provided, and these tubes are arranged in two lines L2, L3, the odd-numbered submerged casting tubes 31, 33, 35 being arranged in line L2 and the even-numbered submerged casting tubes 32 and 34 being arranged in line L3.
In the present case, the distances between the individual submerged casting tubes 31 to 35, including the distance from the narrow side 44 of the permanent mold 41, and also the diameters of the submerged casting tubes 31 to 35, are constant.
AMENDED SHEET ICj 10 In Figure 9, an odd number of submerged casting tubes 31 to 35 are provided, having a shape which differs from the circular shape, in this case being substantially oval. The individual submerged casting tubes 31 to 35 are arranged in series in one line L1 and in this case are aligned in the same direction.
In Figure 10, an even number of submerged casting tubes 31 to 34 are arranged in series in one line L2; some of these substantially oval submerged casting tubes are situated with their larger diameter in line L2 (submerged casting tubes 31, 33), while the other submerged casting tubes 32, 33 are arranged with their larger diameter perpendicular to the line L2.
Figure 11 shows an arrangement of the submerged casting tubes 31 to 35 in a curved permanent mold 42 for a bow-type continuous casting installation. The free space inside the permanent mold 42 has a thickness d, and the submerged casting tubes 31 to 35, which are arranged in the line L1, are at a distance dl 0.2 to 0.4 x d from the inner wall of the inner radius Ri of the casting installation.
AMENDED SHEET 11 Figure 12 shows part of the floor 24 of the casting chamber 22, specifically the bottom opening 25 which is surrounded by a bottom block.26. A quick-acting closure 53 is provided between the bottom block 26 and a submerged casting tube 31, the slide plate 54 of which closure, in the event of an emergency, closes the bottom opening 25 by means of an actuator In Figure 13 there is, in addition to Figure 1 with the tundish 21 and the casting chamber 22, as well as the principal chamber 23 and the submerged casting tubes 31 to 33 projecting into the permanent mold 41, a device for closing the bottom openings 25, which in the present case can be closed off by means of stoppers 52.
In Figure 14, the floor 24 of the casting chamber 22 is designed as a slot, into which submerged casting tubes 31 to 33 are fitted in such a manner that they are connected in a form-fitting manner to one another. These submerged casting tubes have molded elements which are supported on one another, and specifically a lug 36 which corresponds to a mating support 37.
AMENDED SHEET ~~n sss~;.S. Wr*~~~SSeSS.74S.~ 12 In the present case, the submerged casting tubes 31 to 33 are substantially square in cross section, which is kept constant over the entire length.
Although not illustrated, it is possible for the submerged casting tubes to be of rectangular design at the foot end, i.e. in the area of the floor 24 of the casting chamber 22, and to merge into a circular shape towards the outlet, which provides more favorable conditions with regard to the stress ratios in the wall.
Figure 15 shows a slot nozzle of modular design with submerged casting tubes 31 to 33 which are rectangular in shape, with the narrow side 39 being shorter than the wide side 38 of the submerged casting tube. The individual submerged casting tubes again have lugs 36 and mating supports 37 which enable them to be connected in a formfitting manner.
In the case illustrated, the clear cross section of the submerged casting tubes 31 and 32 diverges in the direction of casting, while the outer wall is rectilinear and arranged parallel to the main axis I of the permanent mold 41. Furthermore, in the present case the walls of the submerged casting tubes 31 to 33 are shorter in the central area of the slot nozzle than in the vicinity of the permanent mold narrow side 44. In this way, it is possible to design a AMENDlED SHEET Pt- VY~'~T Yr Yr-tt~fW$ttr~S~y~,JnYtt Yr~eY A~~Y*Y 13 robust slot nozzle of any desired width/thickness ratio and, at the same time, to influence the flow conditions at any desired point of the slot nozzle.
In this specification, except where the context requires otherwise, the words "comprise", "comprises", and "comprising" mean "include", "includes", and "including", respectively. That is, when the invention is described or defined as comprising specified features, various embodiment's of the same invention may also include additional features.
e* e a H:\HelenF\Keep\speci\24102.99Speci.doc 21/12/01
Claims (16)
1. A device for feeding molten metal, in particular liquid steel, via submerged casting tubes of a tundish into a stationary permanent mold of a continuous slab casting installation, the tundish being designed as a casting chamber which is provided with a vacuum pump and is connected to a principal chamber, into which the molten material is fed from the outside, wherein at least three submerged casting tubes, which are arranged next to one another, are provided in the floor of the casting chamber.
2. The device as claimed in claim 1, wherein, in a curved permanent mold of a bow-type continuous casting installation, the submerged casting tubes are arranged in series in a line (Li) which is at a distance (dj) of d, 0.2 to 0.4 x d, where d the distance between the permanent mold wide sides, from the inner wall of the inner radius of the casting installation. The device as claimed in claim 1, wherein the submerged casting tubes are arranged in two parallel lines (L 1 L 2 in relation to the permanent mold wide sides.
4. The device as claimed in claim 3, wherein, if there is an uneven number of submerged casting tubes, the submerged casting tubes which are denoted by even and odd numbers are each arranged on a respective line (LI or L 2
5. The device as claimed in one of the preceding claims, wherein the submerged casting tubes are arranged in series on at least one line (L 1 or L 2 parallel to the permanent 0 mold wide side and, starting from the main axis of the H:\HelenF\Keep\speci\24102.99Speci.doc 21/12/01 4e~:4; U -k U~Th->r~Urtflm cU~.-mt. 15 permanent mold, are arranged at a distance (an) from one another and from the permanent mold narrow side, in such a way that as the integer number increases the distance (an) decreases.
6. The device as claimed in claim 5, wherein the actual distance (an+l) between two adjacent submerged casting tubes is 0.5 to 0.8 x an.
7. The device as claimed in at least one of the preceding claims, wherein the shape of the passage cross section of the submerged casting tubes is not circular, and wherein the corresponding longer side is assigned to the permanent mold wide sides, the radii of the wide side to the narrow side being no less than r Vd.
8. The device as claimed in one of claims 1 to 6, wherein the submerged casting tubes are rectangular in cross section and, in the area of the tundish, have molded elements which produce a form-fitting connection to one another and to the floor of the casting chamber.
9. The device as claimed in at least one of the preceding claims, wherein at least one submerged casting tube projects into the permanent mold at an angle to the permanent mold main axis, where a 10 to 450°. The device as claimed in claim 9, wherein at least two submerged casting tubes project into the permanent 30 mold at an angle to the permanent mold main axis, and wherein these submerged casting tubes are arranged in a H:\HelenF\Keep\speci\24102.99Speci.doc 21/12/01 16 plane which runs parallel to the permanent mold wide sides.
11. The device as claimed in at least one of the preceding claims, wherein the submerged casting tubes have different lengths.
12. The device as claimed in claim 11, wherein the length of the submerged casting tubes is shorter in the submerged casting tubes arranged relatively close to the narrow sides of the permanent mold than the length of those arranged in the center.
13. The device as claimed in claim 7 or 8, wherein the submerged casting tubes have different passage cross sections.
14. The device as claimed in claim 13, wherein the passage cross sections of the submerged casting tubes in the case of the submerged casting tubes arranged relatively close to the narrow sides of the permanent mold are smaller than the passage cross section of those arranged in the center.
15. The device as claimed in one of the preceding claims, wherein control elements which can be used to control the 99 flow through the individual submerged casting tubes are 9999 provided.
16. The device as claimed in claim 15, wherein the control elements are stoppers which can be used to restrict or close the passages through the submerged 0 casting tubes. 4/9 H:\HelenF\KeeP\speci\241O2.99Speci.doc 21/12/01 r9-~ 17
17. The device as claimed in claim 1, wherein quick- acting closures are provided, by means of which the individual bottom openings leading from the casting chamber to the submerged casting tubes can be blocked.
18. A device for feeding molten metal via submerged casting tubes of a tundish into a stationary permanent mold substantially as hereinbefore described with reference to the accompanying figures. Dated this 21st day of December 2001 SMS DEMAG AG and SALZGITTER AG By their Patent Attorneys GRIFFITH HACK Fellows Institute of Patent and Trade Mark Attorneys of Australia S@* SO 555. S oo•• 05oo55 U 0* o o o *oo S oo o r *SSO 0 S S H:\Helen\Keep\speci\24102.99Speci.doc 21/12/01 C -CC-
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19758142A DE19758142A1 (en) | 1997-12-19 | 1997-12-19 | Device for supplying molten metal |
| DE19758142 | 1997-12-19 | ||
| PCT/DE1998/003761 WO1999032248A1 (en) | 1997-12-19 | 1998-12-14 | Device for feeding molten metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2410299A AU2410299A (en) | 1999-07-12 |
| AU744237B2 true AU744237B2 (en) | 2002-02-21 |
Family
ID=7853540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU24102/99A Ceased AU744237B2 (en) | 1997-12-19 | 1998-12-14 | Device for feeding molten metal |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1042087B1 (en) |
| JP (1) | JP2001526119A (en) |
| KR (1) | KR20010033170A (en) |
| CN (1) | CN1098738C (en) |
| AT (1) | ATE208671T1 (en) |
| AU (1) | AU744237B2 (en) |
| BR (1) | BR9813755A (en) |
| CA (1) | CA2314076A1 (en) |
| DE (2) | DE19758142A1 (en) |
| ES (1) | ES2167963T3 (en) |
| WO (1) | WO1999032248A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO320254B1 (en) * | 2003-06-30 | 2005-11-14 | Norsk Hydro As | Method and equipment for continuous or semi-continuous stopping of metal |
| ITMI20052470A1 (en) * | 2005-12-23 | 2007-06-24 | Danieli Off Mecc | DISCHARGE DEVICE |
| US8030082B2 (en) | 2006-01-13 | 2011-10-04 | Honeywell International Inc. | Liquid-particle analysis of metal materials |
| JP2010125506A (en) * | 2008-11-28 | 2010-06-10 | Kurosaki Harima Corp | Arrangement structure of upper nozzle |
| NO333382B1 (en) * | 2009-11-06 | 2013-05-21 | Norsk Hydro As | Metal filling arrangement for continuous casting equipment |
| CN108817339B (en) * | 2018-06-20 | 2020-04-14 | 北京科技大学 | Negative pressure continuous casting device and negative pressure continuous casting method |
| EP4192640A1 (en) | 2020-08-06 | 2023-06-14 | SMS Group GmbH | Casting nozzle or casting distributor, assembly and method for heating and/or preheating a casting nozzle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1960283A1 (en) * | 1968-12-18 | 1970-07-09 | Pennwalt Corp | Vacuum degassing apparatus for use in continuous casting of metals and methods of continuously casting molten metal while it is being vacuum degassed |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1447139A (en) * | 1964-02-03 | 1966-07-29 | Hagenburger Chamotte Ton | Method and device for the direct casting of metals and their various applications |
| CH450640A (en) * | 1966-09-23 | 1968-01-31 | Concast Ag | Process for the production of strands from steel in the continuous casting process |
| SE356914B (en) * | 1969-04-15 | 1973-06-12 | Voest Ag | |
| DE2325690A1 (en) * | 1972-06-06 | 1973-12-20 | Italsider Spa | METHOD AND DEVICE FOR CONTINUOUS CASTING OF KILLED STEEL |
| AT359674B (en) * | 1978-08-04 | 1980-11-25 | Voest Alpine Ag | DISTRIBUTION BOX FOR A CONTINUOUS CASTING SYSTEM |
| FR2612098B3 (en) * | 1987-03-19 | 1989-10-27 | Danieli Off Mecc | CONTINUOUS CASTING SYSTEM FOR OBTAINING THIN SLABS |
| FR2675411A1 (en) * | 1991-04-16 | 1992-10-23 | Siderurgie Fse Inst Rech | Distributor (tundish) for the continuous casting of liquid metal, particularly steel, between a ladle and an ingot mould |
-
1997
- 1997-12-19 DE DE19758142A patent/DE19758142A1/en not_active Withdrawn
-
1998
- 1998-12-14 BR BR9813755-7A patent/BR9813755A/en not_active Application Discontinuation
- 1998-12-14 WO PCT/DE1998/003761 patent/WO1999032248A1/en not_active Application Discontinuation
- 1998-12-14 AT AT98966566T patent/ATE208671T1/en not_active IP Right Cessation
- 1998-12-14 ES ES98966566T patent/ES2167963T3/en not_active Expired - Lifetime
- 1998-12-14 DE DE59802177T patent/DE59802177D1/en not_active Expired - Fee Related
- 1998-12-14 JP JP2000525225A patent/JP2001526119A/en active Pending
- 1998-12-14 EP EP98966566A patent/EP1042087B1/en not_active Expired - Lifetime
- 1998-12-14 CN CN98812193A patent/CN1098738C/en not_active Expired - Fee Related
- 1998-12-14 CA CA002314076A patent/CA2314076A1/en not_active Abandoned
- 1998-12-14 AU AU24102/99A patent/AU744237B2/en not_active Ceased
- 1998-12-14 KR KR1020007006552A patent/KR20010033170A/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1960283A1 (en) * | 1968-12-18 | 1970-07-09 | Pennwalt Corp | Vacuum degassing apparatus for use in continuous casting of metals and methods of continuously casting molten metal while it is being vacuum degassed |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59802177D1 (en) | 2001-12-20 |
| EP1042087B1 (en) | 2001-11-14 |
| CN1282279A (en) | 2001-01-31 |
| ES2167963T3 (en) | 2002-05-16 |
| DE19758142A1 (en) | 1999-07-01 |
| CA2314076A1 (en) | 1999-07-01 |
| AU2410299A (en) | 1999-07-12 |
| EP1042087A1 (en) | 2000-10-11 |
| ATE208671T1 (en) | 2001-11-15 |
| BR9813755A (en) | 2000-10-03 |
| KR20010033170A (en) | 2001-04-25 |
| JP2001526119A (en) | 2001-12-18 |
| WO1999032248A1 (en) | 1999-07-01 |
| CN1098738C (en) | 2003-01-15 |
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