EP0814929A1 - Tauchausguss zum giessen von metall - Google Patents
Tauchausguss zum giessen von metallInfo
- Publication number
- EP0814929A1 EP0814929A1 EP96904747A EP96904747A EP0814929A1 EP 0814929 A1 EP0814929 A1 EP 0814929A1 EP 96904747 A EP96904747 A EP 96904747A EP 96904747 A EP96904747 A EP 96904747A EP 0814929 A1 EP0814929 A1 EP 0814929A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pouring part
- pouring
- immersion
- nozzle according
- immersion nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 238000007654 immersion Methods 0.000 claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000009749 continuous casting Methods 0.000 claims abstract description 4
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 13
- 239000000155 melt Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 2
- 239000011819 refractory material Substances 0.000 claims 1
- 229910001338 liquidmetal Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008646 thermal stress Effects 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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Definitions
- the invention relates to an immersion nozzle for casting metal, in particular steel, in continuous casting plants for thin slabs, with a pouring part having a circular cross section, fastened to a pouring vessel, and a pouring part immersed in the melt located in a rectangular mold, the mouth of which is designed in a rectangular cross section .
- EP 0 630 712 discloses an immersion spout, in particular for thin slab casting, which is divided into two sections and whose lower molded block has a length which is substantially greater than its width.
- the individual sections are formed by separate shaped blocks, the shaped blocks engaging in one another at their mutually facing ends and a seal being arranged between the interlocking ends of the shaped blocks.
- the individual shaped blocks show a complicated structure with clear differences in the wall thickness.
- Length section is rectangular in cross section.
- the dimensions in the mouth area are in a length / width ratio of 20: 1 to 80: 1.
- the outlet of the immersion pouring tube is formed by two orifices, which together have a flow cross-section that is not quite as large as the flow cross-section at the stopper closure.
- a ratio of less than 1: 1 between the flow cross-section in the inlet pipe and at the outlet of the immersion pouring pipe is achieved by redirecting the flow and narrowing two orifices.
- the aim of the invention is to provide an immersion pouring tube which is easy to manufacture, has a long service life, has a low-thermal stress structure in terms of its manufacture and in operation, and which enables the liquid metal to flow out uniformly.
- the invention achieves this goal by the features specified in the characterizing part of claim 1.
- the immersion pouring tube is constructed from two basic components, namely a tubular pouring part and a straight pouring part. Between these two basic components, which are completely different in shape, there is a short transition in terms of their overall length.
- the flow of the molten steel can be carried out completely calmly, provided that the flat wall elements are arranged almost parallel to each other.
- the simple molded elements either round or straight, allow the individual components of the immersion pouring tube to be adapted to the high thermal stresses to be expected.
- the use of wall elements of the same wall thickness counts. Since the transition between the pouring and the pouring part plays a subordinate role with regard to the flow conditions, this constructive freedom can be used for optimization with regard to a low stress of the transition part.
- Impact elements which are arranged at the foot of the pouring part, can have a positive influence on the flow conditions, particularly in the transition region.
- Thin slab molds with parallel side walls and a width of up to 60 mm can be used.
- melt quantity is adjusted using an adjusting element in the pouring vessel, regularly using a stopper. 405
- Figure 1 is a schematic diagram of the immersion pouring tube and the pouring vessel
- FIG. 2 shows an immersion pouring tube with the head-side expansion of the immersion casting.
- FIG. 3 immersion pouring tube with a roof-shaped pouring portion
- FIG. 1 shows a section of a pouring vessel 41 with the outlet opening 43, which can be blocked or constricted by a stopper 42.
- a pouring part 11 is fastened, which has the shape of a tube and has flat end faces on the mouth side.
- the tubular pouring part 11 is connected to a substantially rectangular pouring part 21.
- the pouring part 21 dips into the melt S on the mouth side, which is located in a mold 51.
- the pouring part 21 has broad sides 22, shown in the left part of the drawing, and
- a heating device 31 is shown as a sketch, which is guided essentially parallel to the broad sides 22.
- the broad sides 22 and the narrow sides 23 are guided essentially in parallel.
- an embodiment of the pouring part is shown, in which the narrow sides 23 spread at an angle of ⁇ 7 ° C. in the direction of flow.
- FIG. 2 shows a pouring part in perspective, the broad sides of which open conically up to an inner width K against the direction of flow.
- a square with the edge length K is sufficient in the middle, on which the end face 12 of the tubular pouring part 11 can be placed or can even be inserted through an opening of a suitable size.
- the end wall 27 can be designed to converge conically to the edge of the broad sides 26
- the length of the transition part I is shown in the figure, and this is related to the spacing of the broad sides a as l / A ⁇ 1/4
- the total length of the immersion pouring tube consisting of the pouring part 11 and the pouring part 21 is marked with L.
- FIG. 3 shows a sketch of an immersion pouring tube, in which the pouring part is configured at the top in the form of a roof, which is fitted at the head end in slots 14 of the pouring part 11 with its corresponding region 24.
- the head 25 of the pouring part 2 has an end wall 27 that opens from the pouring part in the direction of the roof to the edge of the broad sides
- the slot 14 of the pouring part 11 or the part 24 of the pouring part 21 corresponding to the slot 14 has a length of I.
- Figure -1 shows in detail the mouth area 13 of the E ⁇ ng ⁇ eßte ⁇ ls11 Here is in
- Top view of the slot 14 can be seen in the pouring part, into which the corresponding part 24 is fitted.
- a tongue 29 is provided, which is fitted into a groove 19 of the pouring part 11.
- the arrangement of the tongue and groove allows the parts 1 to be pushed together horizontally 1 and 21 are possible, but in operation the pouring part 21 is prevented from falling out of the slot 14 of the pouring part 11
- FIG. 5 shows an immersion pouring tube with a pouring part 21 which is attached to the pouring vessel 41 completely independently of the pouring part 11.
- the pouring part 11 which is arranged immediately below the outlet opening 43 of the pouring vessel 41, is one in the pouring space Gg of the pouring part
- the insert 28 surrounded.
- the insert 28 has a shape which, in a suitable manner, guides the melt stream leaving the tubular casting 11 with little swirling.
- This configuration makes it possible in the shortest possible way to force the molten metal having a round cross-sectional area after leaving the outlet opening 43 in the shortest possible manner into a metal stream which has a rectangular cross-sectional area and has a large narrow / wide side ratio.
- a * free cross-sectional area pouring part a distance broadsides b Narrow side distance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Glass Compositions (AREA)
- ing And Chemical Polishing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Laminated Bodies (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19512208 | 1995-03-21 | ||
DE19512208A DE19512208C1 (de) | 1995-03-21 | 1995-03-21 | Tauchausguß zum Gießen von Metall |
PCT/DE1996/000405 WO1996029166A1 (de) | 1995-03-21 | 1996-03-04 | Tauchausguss zum giessen von metall |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0814929A1 true EP0814929A1 (de) | 1998-01-07 |
EP0814929B1 EP0814929B1 (de) | 2001-05-02 |
Family
ID=7758505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96904747A Expired - Lifetime EP0814929B1 (de) | 1995-03-21 | 1996-03-04 | Tauchausguss zum giessen von metall |
Country Status (12)
Country | Link |
---|---|
US (1) | US5916472A (de) |
EP (1) | EP0814929B1 (de) |
JP (1) | JP3016596B2 (de) |
KR (1) | KR100295953B1 (de) |
CN (1) | CN1072079C (de) |
AT (1) | ATE200870T1 (de) |
AU (1) | AU4874996A (de) |
DE (3) | DE19512208C1 (de) |
RU (1) | RU2145535C1 (de) |
TW (1) | TW318803B (de) |
WO (1) | WO1996029166A1 (de) |
ZA (1) | ZA962272B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19623787C2 (de) * | 1996-06-04 | 1998-07-02 | Mannesmann Ag | Verfahren und Vorrichtung zum Ausgießen von Stahl aus einem Tauchausguß |
DE19724232C2 (de) * | 1997-06-03 | 1999-04-15 | Mannesmann Ag | Verfahren und Vorrichtung zum Erzeugen von Brammen |
DE19728957A1 (de) * | 1997-06-30 | 1999-01-07 | Mannesmann Ag | Verfahren und Vorrichtung zum Erzeugen von Dünnbrammen |
JP4079415B2 (ja) * | 2002-04-26 | 2008-04-23 | 黒崎播磨株式会社 | 薄スラブ連続鋳造用浸漬ノズル |
TWI436835B (zh) * | 2008-11-20 | 2014-05-11 | Vesuvius Group Sa | 可再利用澆鑄構件 |
RU2741876C1 (ru) * | 2020-07-19 | 2021-01-29 | Акционерное общество «ЕВРАЗ Нижнетагильский металлургический комбинат» (АО «ЕВРАЗ НТМК») | Способ непрерывного литья слябовых заготовок |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709188A1 (de) * | 1987-03-20 | 1988-09-29 | Mannesmann Ag | Ausgiessrohr fuer metallurgische gefaesse |
JPH01289544A (ja) * | 1988-05-16 | 1989-11-21 | Nippon Steel Corp | 連続鋳造法および注入ノズル |
DE4319194A1 (de) * | 1993-06-09 | 1994-12-15 | Didier Werke Ag | Mundstück eines Eintauchausgusses |
DE4319966A1 (de) * | 1993-06-17 | 1994-12-22 | Didier Werke Ag | Eintauchausguß |
DE4320723A1 (de) * | 1993-06-23 | 1995-01-05 | Didier Werke Ag | Eintauchausguß |
IT1267284B1 (it) * | 1994-08-08 | 1997-01-28 | Danieli Off Mecc | Scaricatore per colata continua |
IT1267299B1 (it) * | 1994-09-30 | 1997-01-28 | Danieli Off Mecc | Scaricatore per cristallizzatore per colata continua di bramme sottili |
-
1995
- 1995-03-21 DE DE19512208A patent/DE19512208C1/de not_active Expired - Fee Related
-
1996
- 1996-03-04 DE DE19680152T patent/DE19680152D2/de not_active Expired - Fee Related
- 1996-03-04 KR KR1019970706171A patent/KR100295953B1/ko not_active IP Right Cessation
- 1996-03-04 US US08/930,026 patent/US5916472A/en not_active Expired - Fee Related
- 1996-03-04 RU RU97117458A patent/RU2145535C1/ru active
- 1996-03-04 AT AT96904747T patent/ATE200870T1/de active
- 1996-03-04 EP EP96904747A patent/EP0814929B1/de not_active Expired - Lifetime
- 1996-03-04 DE DE59606850T patent/DE59606850D1/de not_active Expired - Lifetime
- 1996-03-04 JP JP8527966A patent/JP3016596B2/ja not_active Expired - Lifetime
- 1996-03-04 AU AU48749/96A patent/AU4874996A/en not_active Abandoned
- 1996-03-04 WO PCT/DE1996/000405 patent/WO1996029166A1/de active IP Right Grant
- 1996-03-04 CN CN96192608A patent/CN1072079C/zh not_active Expired - Fee Related
- 1996-03-20 ZA ZA962272A patent/ZA962272B/xx unknown
- 1996-04-13 TW TW085104498A patent/TW318803B/zh active
Non-Patent Citations (1)
Title |
---|
See references of WO9629166A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19512208C1 (de) | 1996-07-18 |
ATE200870T1 (de) | 2001-05-15 |
JPH10510216A (ja) | 1998-10-06 |
TW318803B (de) | 1997-11-01 |
JP3016596B2 (ja) | 2000-03-06 |
AU4874996A (en) | 1996-10-08 |
DE59606850D1 (de) | 2001-06-07 |
DE19680152D2 (de) | 1998-04-23 |
US5916472A (en) | 1999-06-29 |
ZA962272B (en) | 1996-09-30 |
WO1996029166A1 (de) | 1996-09-26 |
CN1072079C (zh) | 2001-10-03 |
CN1178490A (zh) | 1998-04-08 |
KR100295953B1 (ko) | 2001-10-25 |
EP0814929B1 (de) | 2001-05-02 |
RU2145535C1 (ru) | 2000-02-20 |
KR19980702764A (ko) | 1998-08-05 |
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