EP0429860A2 - Dispositif de fermeture et/ou de réglage - Google Patents
Dispositif de fermeture et/ou de réglage Download PDFInfo
- Publication number
- EP0429860A2 EP0429860A2 EP90120544A EP90120544A EP0429860A2 EP 0429860 A2 EP0429860 A2 EP 0429860A2 EP 90120544 A EP90120544 A EP 90120544A EP 90120544 A EP90120544 A EP 90120544A EP 0429860 A2 EP0429860 A2 EP 0429860A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- face
- sealing surfaces
- regulating element
- element according
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 3
- 238000010079 rubber tapping Methods 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
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
- B22D41/14—Closures
-
- 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
Definitions
- the invention relates to a closing and / or regulating element for tapping liquid molten metal from a metallurgical vessel with a vertical, ceramic inner tube with at least one lateral opening and with a ceramic outer tube with at least one lateral opening, one tube being stationary and the other tube this is rotatable and the tubes form circular-cylindrical main sealing surfaces next to the openings and have end faces which extend radially around the common longitudinal axis of the tubes.
- Such a locking and / or regulating element is described in DE 35 40 202 C1.
- the outer tube is rotated against the inner tube so that the openings no longer coincide.
- the main sealing surfaces prevent further melt leakage.
- the gap between the main sealing surfaces is dimensioned so narrow that it does not let melt through.
- the object of the invention is to design a closing and / or regulating member of the type mentioned in such a way that a complete closure of the closing and / or regulating member is possible even if the main sealing surfaces wear out or the gap between them is widened.
- the above object is achieved in a closing and / or regulating member of the type mentioned at the outset in that at least one end face of one pipe faces an end face of the other pipe in the axial direction, and in that the end face of the rotatable pipe, at least when the main sealing faces leak, onto the end face of the stationary tube can be pressed on in such a way that the end faces stand on one another in a melt-tight manner and thereby form replacement sealing faces.
- the closing and / or regulating member can still be used even if, after prolonged operation, the sealing gap between the main sealing surfaces is widened to such an extent that the main sealing surfaces alone can no longer prevent melt from escaping.
- a ceramic tube (3) is attached to the bottom (1) of a metallurgical vessel (2).
- the tube (3) has a lateral opening (4) above the base (1).
- a step (5) is provided on the inside of the tube (3) according to FIG. 1.
- an end face (6) is formed on the tube (3) above the opening (4) and an end face (7) below the opening (4).
- a circular cylindrical main sealing surface (8) lies between the end faces (6, 7).
- a ceramic tube (9) forming an inner tube is inserted into the tube (3) forming an outer tube. This can be rotated about the common longitudinal axis (L) of the two tubes (3, 9). It has an opening (10) at the height of the opening (4). An end face (12) above the opening (10) and an end face (13) below the opening (10) are formed on the tube (9) by an outside step (11).
- a circular cylindrical main sealing surface (14) runs between the two end faces (12, 13).
- the end faces (6, 7, 12, 13) extend radially around the longitudinal axis (L) and run around it.
- the upper end faces (12) face the upper end face (6).
- the lower end face (13) is axially opposite the lower end face (7).
- Figure 2 differs from that of Figure 1 in that the fixed tube (3) as an inner tube and the rotatable tube (9) are designed as an outer tube. Corresponding parts are provided with the same reference symbols.
- the tube (9) is rotated about the longitudinal axis (L) so that the openings (4, 10) no longer coincide. A gap existing between these is dimensioned so small that melt does not pass between the main sealing surfaces (8, 14).
- the gap between the main sealing surfaces (8, 14) can widen, so that the gap becomes permeable to melt.
- the pipe (9) can be pressurized in the direction of the arrow (P).
- the upper end face (12) of the tube (9) is pressed onto the upper end face (6) of the tube (3) by the pressure. pressed.
- the lower end face (13) of the tube (9) is pressed onto the lower end face (7) of the tube (3).
- the end faces become replacement sealing surfaces that prevent the melt from escaping. It may also be sufficient if only the upper end faces (12, 6) or the lower end faces (13, 7) are pressed together by the pressing pressure.
- the pressure is between 0.1 bar and 10 bar.
- the end faces (6, 7, 12, 13) can be made of the same material as the tubes (3, 9). However, it is also possible to provide inserts made of an oxide ceramic such as Al2O3 or ZrO2 on the end faces (6, 7, 12, 13).
- the inserts can also consist of boron nitride and / or graphite.
- the replacement sealing surfaces can be flat or profiled, a labyrinth shape being created for the replacement sealing surfaces.
- the replacement sealing surfaces (6, 12) and / or (7, 13) do not need to be constantly pressed together by means of the pressing pressure required for sealing. It is sufficient to press the replacement sealing surfaces only when the main sealing surfaces (8, 14) themselves are no longer sufficiently tight. However, in In this case, the leakage of the main sealing surfaces (8, 14) can only be determined. In order to avoid this, the tube (9) can always be pressurized when the tube (9) is in its closed position. Applying the pressure to the tube (9) even when the tube (9) is rotated appears to be unfavorable, since it is then difficult to rotate and the replacement sealing surfaces would be stressed by the rotation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Charging Or Discharging (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3939241 | 1989-11-28 | ||
DE3939241A DE3939241C2 (de) | 1989-11-28 | 1989-11-28 | Schließ- und/oder Regelorgan |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0429860A2 true EP0429860A2 (fr) | 1991-06-05 |
EP0429860A3 EP0429860A3 (en) | 1992-04-15 |
Family
ID=6394307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900120544 Withdrawn EP0429860A3 (en) | 1989-11-28 | 1990-10-26 | Shut-off and/or control element |
Country Status (10)
Country | Link |
---|---|
US (1) | US5085344A (fr) |
EP (1) | EP0429860A3 (fr) |
JP (1) | JP2946237B2 (fr) |
KR (1) | KR100193277B1 (fr) |
CN (1) | CN1047117C (fr) |
BR (1) | BR9005994A (fr) |
CA (1) | CA2030944A1 (fr) |
DE (1) | DE3939241C2 (fr) |
RU (1) | RU1838046C (fr) |
ZA (1) | ZA908779B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693338A1 (fr) * | 1994-07-22 | 1996-01-24 | Stopinc Aktiengesellschaft | Elément de fermeture pour un obturateur de busette de coulée dans un récipient contenant du métal liquide |
DE19510381B4 (de) * | 1994-03-23 | 2004-02-12 | Mazda Motor Corp. | Niederdruck-Gußvorrichtung |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5798051A (en) * | 1996-03-29 | 1998-08-25 | Build A Mold, Ltd. | Sealing device for molten metal valve pin |
US6578622B2 (en) | 2001-02-26 | 2003-06-17 | Siemens Vdo Automotive Inc. | Core cast manifold assembly |
CN106311981B (zh) * | 2016-11-17 | 2018-03-02 | 遵义市润丰源钢铁铸造有限公司 | 消失模铸造铸件的浇注装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1558285A1 (de) * | 1921-05-15 | 1970-05-06 | Weinreich Dr Ing Wolfgang | Bodenverschluss fuer Giesspfannen |
LU67368A1 (fr) * | 1972-04-08 | 1973-06-18 | ||
DE3540202C1 (de) * | 1985-11-13 | 1986-11-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Zuflußstellglied für eine Kokillenfüllstandsregelung einer Stranggießanlage |
EP0308597A2 (fr) * | 1987-09-19 | 1989-03-29 | Didier-Werke Ag | Dispositif de fermeture à obturateur rotatif pour un récipient métallurgique ainsi qu'un rotor et/ou un stator pour un dispositif de fermeture rotatif |
EP0356618A1 (fr) * | 1988-08-02 | 1990-03-07 | Didier-Werke Ag | Organe de fermeture et/ou de commande pour l'amorçage de la coulée d'un métal liquide sortant d'un récipient métallurgique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3651998A (en) * | 1970-09-23 | 1972-03-28 | Metallurg Exoproducts Corp | Nozzle for a pouring ladle |
FR2471789A1 (fr) * | 1979-12-18 | 1981-06-26 | Cardiofrance Co | Stimulateur cardiaque implantable polyvalent et procede d'utilisation de ce stimulateur |
DE3809072A1 (de) * | 1988-03-18 | 1989-09-28 | Didier Werke Ag | Dreh- und/oder schieberverschluss und dessen verschlussteile |
-
1989
- 1989-11-28 DE DE3939241A patent/DE3939241C2/de not_active Expired - Fee Related
-
1990
- 1990-10-26 EP EP19900120544 patent/EP0429860A3/de not_active Withdrawn
- 1990-11-01 ZA ZA908779A patent/ZA908779B/xx unknown
- 1990-11-22 JP JP2315707A patent/JP2946237B2/ja not_active Expired - Lifetime
- 1990-11-22 KR KR1019900018971A patent/KR100193277B1/ko not_active IP Right Cessation
- 1990-11-27 CN CN90109441A patent/CN1047117C/zh not_active Expired - Fee Related
- 1990-11-27 BR BR909005994A patent/BR9005994A/pt not_active IP Right Cessation
- 1990-11-27 US US07/618,947 patent/US5085344A/en not_active Expired - Fee Related
- 1990-11-27 RU SU904831670A patent/RU1838046C/ru active
- 1990-11-27 CA CA002030944A patent/CA2030944A1/fr not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1558285A1 (de) * | 1921-05-15 | 1970-05-06 | Weinreich Dr Ing Wolfgang | Bodenverschluss fuer Giesspfannen |
LU67368A1 (fr) * | 1972-04-08 | 1973-06-18 | ||
DE3540202C1 (de) * | 1985-11-13 | 1986-11-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Zuflußstellglied für eine Kokillenfüllstandsregelung einer Stranggießanlage |
EP0308597A2 (fr) * | 1987-09-19 | 1989-03-29 | Didier-Werke Ag | Dispositif de fermeture à obturateur rotatif pour un récipient métallurgique ainsi qu'un rotor et/ou un stator pour un dispositif de fermeture rotatif |
EP0356618A1 (fr) * | 1988-08-02 | 1990-03-07 | Didier-Werke Ag | Organe de fermeture et/ou de commande pour l'amorçage de la coulée d'un métal liquide sortant d'un récipient métallurgique |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19510381B4 (de) * | 1994-03-23 | 2004-02-12 | Mazda Motor Corp. | Niederdruck-Gußvorrichtung |
EP0693338A1 (fr) * | 1994-07-22 | 1996-01-24 | Stopinc Aktiengesellschaft | Elément de fermeture pour un obturateur de busette de coulée dans un récipient contenant du métal liquide |
Also Published As
Publication number | Publication date |
---|---|
CA2030944A1 (fr) | 1991-05-29 |
EP0429860A3 (en) | 1992-04-15 |
KR910009370A (ko) | 1991-06-28 |
DE3939241C2 (de) | 1994-09-01 |
US5085344A (en) | 1992-02-04 |
DE3939241A1 (de) | 1991-05-29 |
ZA908779B (en) | 1991-08-28 |
CN1047117C (zh) | 1999-12-08 |
JPH03169476A (ja) | 1991-07-23 |
RU1838046C (ru) | 1993-08-30 |
JP2946237B2 (ja) | 1999-09-06 |
CN1052269A (zh) | 1991-06-19 |
BR9005994A (pt) | 1991-09-24 |
KR100193277B1 (ko) | 1999-06-15 |
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