EP1545813A1 - Dichtplatte zur seitenabdichtung eines zwischen zwei giessrollen einer bandgiessmaschine gebildeten giessspaltes - Google Patents
Dichtplatte zur seitenabdichtung eines zwischen zwei giessrollen einer bandgiessmaschine gebildeten giessspaltesInfo
- Publication number
- EP1545813A1 EP1545813A1 EP03757906A EP03757906A EP1545813A1 EP 1545813 A1 EP1545813 A1 EP 1545813A1 EP 03757906 A EP03757906 A EP 03757906A EP 03757906 A EP03757906 A EP 03757906A EP 1545813 A1 EP1545813 A1 EP 1545813A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing plate
- casting
- sealing
- plate according
- holding frame
- 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
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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/0648—Casting surfaces
- B22D11/066—Side dams
Definitions
- Sealing plate for side sealing of a casting gap formed between two casting rolls of a belt casting machine
- the invention relates to a sealing plate for the side sealing of a casting gap formed between two casting rolls of a strip casting machine according to the preamble of claim 1.
- the sealing plates When casting with pressed-on side sealing plates, the sealing plates are known to show high wear. At the same time, the end faces of the casters are also worn out. This has the disadvantage that the wetted part of the respective sealing plate grows between the casting rolls, which results in a change in bandwidth (narrowing of the bandwidth) and leads to undefined conditions. Wash-out and wear in the edge area of the casting rolls, which result in partial solidification or fin formation, are particularly disadvantageous.
- the sealing plates are usually made of refractory materials such as boron nitride, SiALON with boron nitride or similar materials, which are extremely expensive.
- the present invention has for its object to provide a sealing plate of the type mentioned, which is inexpensive and yet has sufficient life with the least possible wear, and which enables the production of a metal strip with uniform side parts without fins.
- the sealing plate is coated on its sealing side 'at least in the end region of the casting rolls with a material which has good sliding and abrasion properties
- the sealing plate can consist of an inexpensive refractory material or a high-temperature resistant alloy, or of two materials, for example of the aforementioned materials existing parts can be assembled, whereby the costs for a pair of side seals including change, necessary preheating etc. are significantly reduced. Nevertheless, a sufficient lifespan can be achieved in preparation and reuse (on average about 8 to 20 hours) in continuous casting and the wear on the sealing plates can be kept to a minimum.
- Figure 1 shows a side seal with a first embodiment of a sealing plate in vertical longitudinal section.
- Figure 2 is a section along line II-II in Fig. 1.
- Fig. 3 is a section along line III-III in Fig. 2;
- Figure 4 is a side seal with a second embodiment of a sealing plate in vertical longitudinal section.
- Fig. 5 is a section along line V-V in Fig. 4;
- Fig. 6 is a section along line VI-VI in Fig. 5;
- 7 shows a side seal with a third exemplary embodiment of a sealing plate in vertical longitudinal section; 7a shows a variant - to detail D according to FIG. 7;
- FIG. 8 shows a section along line VIII-VIII in FIG. 7;
- FIG. 1 to 3 show a side seal 10 for a roller band casting machine, which is provided for the lateral sealing of a casting gap formed between two casting rollers.
- Two side seals 10 (also called narrow side parts) arranged on both end faces of the casting rolls limit the length of the casting gap.
- the casting rolls are indicated by dash-dotted lines in FIG. 2 and denoted by 1, 2.
- the side seal 10 comprises a sealing plate 11 which is accommodated in a holding frame 12 which is operatively connected to an adjusting device 13.
- the holding frame 12 together with the sealing plate 11 can be adjusted in the longitudinal direction of the casting rolls 1, 2, and thereby the sealing plate 11 with its sealing side 11a on the end faces of the casting rolls 1, 2 positionable.
- the sealing plate 11 is accommodated in a container-shaped part (containment) 16 of the holding frame 12 which rests on a steel support 17 of the holding frame 12 and is connected to it, for example welded.
- the steel support 17 is in turn connected, preferably welded, on the one hand to a rear frame part 18 and on the other hand to the side parts 20, 21 enclosing the container-shaped part 16 and positioning them in their position.
- Both the rear frame part 18 and the side parts 20, 21 of the holding frame 12 are provided with cooling channels 22, 23 and 24, 25 (cf. in particular FIG. 3) for a cooling medium, preferably cooling water.
- the cooling water inlet is indicated in FIGS. 1 and 2 by arrow E, the cooling water outlet is designated by arrows A in FIG. 2.
- the sealing plate 11 consists of a refractory material, which can be a graphite-containing carbon or a mixture of SiG ⁇ , AlO_rZirconium oxide and graphite - similar to today's pouring pipes.
- a material which has good sliding and abrasion properties such as, for example, boron nitride, SiALON or the Abradables known as sealing material in gas turbines. The coating is done by spraying.
- the thickness of the layer is 0.1 to 2 mm.
- the sealing plate 11 is supported in the container-shaped part 16 with its surface facing away from the sealing side 11 a on three hard pads 28 and is preferably held in place by means of refractory wedging elements 29 arranged on its circumference (this type of fastening enables the sealing plate 11 to be inserted and pressed out easily into the holding frame 12, ie rapid replacement of the sealing plate 11).
- An insulation 30 is present between the sealing plate 11 and the container-shaped part 16.
- the coating according to the invention allows the side seals 10 with the sealing plates 11 to be ground in during casting and then at individual time intervals, e.g. every 30 min to 1 h, to press against the ends of the casting rolls, in order to then place them at a distance of e.g. Position 0.05 to 0.4 mm from the face.
- the wear on both the castor end faces and castor edges and the sealing plates 11 is kept to a minimum.
- the distance mentioned above can be tolerated without there being any risk of the metal melt escaping. At most, this danger can be counteracted electromagnetically, for example by generating eddy currents in the molten metal (cf. WO-A-03/024646).
- the sealing side 11a can be coated with the same material over its entire surface. However, it can also be a different coating, for example in the wetted area, for example with low wettability, with good insulation properties and wear values, etc. 4 to ' ⁇ "shows a' side seal '10'", ' di ' e 'is equipped with " an sealing plate 31 made of a ' high-temperature-resistant alloy.
- the parts which are constant with respect to the side seal 10 according to FIGS. 1 to 3 are the same 4 to 6. The same reference numerals are used in Figures 4 to 6.
- the high temperature resistant alloy can be a Ni-Cr, Ni-Cr-Co, Ni-Mo, Ni-W alloy or similar materials for example alloys INCONEL, INCOLOY or NIMONIC.
- the sealing plate 31 is slit both horizontally and vertically (cf. slots 34, 35 according to FIGS. 4 and 6).
- the sealing plate 31 is screwed to a carrier plate 37 by means of screws 38 and inserted together with this into the holding frame 12 '. If necessary, an insulation plate can be placed between them.
- the sealing plate 31 is in turn coated on its sealing side 31 a, at least in the end region of the casting rolls 1, 2, with a material (boron nitride, SiALON, abradables etc.) which has good sliding and abrasion properties.
- a material boron nitride, SiALON, abradables etc.
- the cooling of the side seal 10 corresponds to the solution described above, wherein this is set so that the temperature of the alloy material or the coating is approximately 700 ° to 1100 °.
- a side seal 10 "with a further variant of an inventive sealing plate 41- is shown in Fig. 7 to 9-darong.
- the ' is composed of two parts 42, 43, which are accommodated together in the container-shaped part 16 of the holding frame 12 and are preferably held in place by means of the wedging elements 29.
- the first part 42 which covers the wetted area, consists - similar to the sealing plate 11 according to FIGS. 1 to 3 - of a refractory material and is held in the holding frame 12 with an insulation 44 in between.
- the second part 43 - similar to the sealing plate 31 according to FIGS. 3 to 6 - consists of a high-temperature resistant alloy (eg Nr-Cr-Co, Ni-Cr, Ni-Mo, Ni-W), a gray cast iron, high-strength steel etc. and can at best also be held in the holding frame 12 or its part 16 with insulation in between (no insulation plate is shown in FIGS. 7 and 9). Both parts 42, 43 can in turn be provided on the sealing side 41 a with the same or with a different coating.
- the second part 43 of the sealing plate 41 has a kind of “snout shape” with two legs 43s extending along the end of the casting rolls and converging below to form a common central region 43m, between which the first part 42 protrudes from above rounded off its lowermost area or have a horizontal or oblique lower separating surface, the lowest separating line or separating surface 46 (FIGS.
- the first part 42 can rest on a shoulder surface 47 of the second ' part '43; whereby the second part -43 forms a rear support frame-side support 48 for the first part 42.
- sealing plates or sealing plate parts with fitted insulation plates, these are preheated before the casting process.
- sealing plates or sealing plate parts made of high-temperature-resistant alloys second and third variant, but possibly also with the first variant
- inductive or resistance heating before and during the casting process can be considered.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH01657/02A CH696138A5 (de) | 2002-10-04 | 2002-10-04 | Dichtplatte zur Seitenabdichtung eines zwischen zwei Giessrollen einer Bandgiessmaschine gebildeten Giessspaltes. |
| CH165702 | 2002-10-04 | ||
| PCT/EP2003/010956 WO2004033130A1 (de) | 2002-10-04 | 2003-10-02 | Dichtplatte zur seitenabdichtung eines zwischen zwei giessrollen einer bandgiessmaschine gebildeten giessspaltes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1545813A1 true EP1545813A1 (de) | 2005-06-29 |
| EP1545813B1 EP1545813B1 (de) | 2007-08-08 |
Family
ID=32075137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03757906A Expired - Lifetime EP1545813B1 (de) | 2002-10-04 | 2003-10-02 | Dichtplatte zur seitenabdichtung eines zwischen zwei giessrollen einer bandgiessmaschine gebildeten giessspaltes |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1545813B1 (de) |
| AT (1) | ATE369220T1 (de) |
| AU (1) | AU2003273941A1 (de) |
| CH (1) | CH696138A5 (de) |
| DE (1) | DE50307902D1 (de) |
| WO (1) | WO2004033130A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH697156A5 (de) * | 2004-09-17 | 2008-05-30 | Main Man Inspiration Ag | Seitenabdichtung eines zwischen zwei Giessrollen einer Bandgiessmaschine gebildeten Giessspaltes. |
| CN100368120C (zh) * | 2005-12-02 | 2008-02-13 | 重庆大学 | 双辊连铸镁合金薄带浇铸装置 |
| CN102426047B (zh) * | 2011-12-14 | 2013-06-19 | 中冶赛迪工程技术股份有限公司 | 振动加料装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03118945A (ja) * | 1989-10-02 | 1991-05-21 | Nippon Steel Corp | 双ロール式連続鋳造機 |
| FR2666256B1 (fr) * | 1990-09-03 | 1992-10-16 | Usinor Sacilor | Installation de coulee continue entre cylindres. |
| FR2670413B1 (fr) * | 1990-12-17 | 1993-04-09 | Usinor Sacilor | Dispositif de coulee continue de bandes minces de metal, notamment d'acier. |
| IT1284201B1 (it) * | 1996-07-31 | 1998-05-08 | Sviluppo Materiali Spa | Piastre con riporti ceramici antiusura per macchine per colata conntinua di corpi piani sottili e procedimento per la loro |
| FR2755384B1 (fr) * | 1996-11-06 | 1998-11-27 | Usinor Sacilor | Enduit protecteur pour elements en materiau refractaire d'une lingotiere de coulee continue des metaux, et elements en materiau refractaire protege a l'aide de cet enduit |
| IT1302959B1 (it) * | 1998-12-31 | 2000-10-10 | Acciai Speciali Terni Spa | Piastre refrattarie per macchine di colata continua di corpi pianisottili. |
-
2002
- 2002-10-04 CH CH01657/02A patent/CH696138A5/de not_active IP Right Cessation
-
2003
- 2003-10-02 AT AT03757906T patent/ATE369220T1/de active
- 2003-10-02 AU AU2003273941A patent/AU2003273941A1/en not_active Abandoned
- 2003-10-02 EP EP03757906A patent/EP1545813B1/de not_active Expired - Lifetime
- 2003-10-02 DE DE50307902T patent/DE50307902D1/de not_active Expired - Lifetime
- 2003-10-02 WO PCT/EP2003/010956 patent/WO2004033130A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004033130A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003273941A8 (en) | 2004-05-04 |
| CH696138A5 (de) | 2007-01-15 |
| WO2004033130A1 (de) | 2004-04-22 |
| ATE369220T1 (de) | 2007-08-15 |
| AU2003273941A1 (en) | 2004-05-04 |
| EP1545813B1 (de) | 2007-08-08 |
| DE50307902D1 (de) | 2007-09-20 |
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