EP1646464A1 - Verfahren zum betrieb einer bandgiessmaschine f r die erzeug ung eines metallbandes - Google Patents
Verfahren zum betrieb einer bandgiessmaschine f r die erzeug ung eines metallbandesInfo
- Publication number
- EP1646464A1 EP1646464A1 EP04740295A EP04740295A EP1646464A1 EP 1646464 A1 EP1646464 A1 EP 1646464A1 EP 04740295 A EP04740295 A EP 04740295A EP 04740295 A EP04740295 A EP 04740295A EP 1646464 A1 EP1646464 A1 EP 1646464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- sealing plates
- time
- end faces
- sealing
- 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 56
- 238000000034 method Methods 0.000 title claims abstract description 26
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 7
- 239000002184 metal Substances 0.000 title claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 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
- B22D11/16—Controlling or regulating processes or operations
-
- 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
- the invention relates to a method for operating a strip casting machine for producing a metal strip according to the preamble of claim 1.
- the present invention is based on the object of proposing a method of the type mentioned at the outset which enables a significant reduction in wear. According to the invention, this object is achieved by a method having the features of claim 1.
- the contact force of the sealing plates against the end faces of the casting rollers or the holding time of the sealing plates in the setting position can advantageously be varied and the method accordingly adapted to the specific casting conditions.
- the holding time is advantageously held at least twice as long and a maximum of 300 times as long as the switching on time.
- the longer service lives due to the lower wear lead to significantly lower costs for the sealing plates per ton of steel, to longer casting sequences and to a higher output, which significantly improves the economy of the process.
- Figure 1 in vertical longitudinal section an embodiment of a side seal with a sealing plate for a band casting machine.
- FIG. 2 shows a section along line II-II in FIG. 1.
- a side seal 10 is shown for a roller band casting machine, which is provided for the lateral sealing of a casting gap formed between two casting rolls.
- Two side seals 10 also called narrow side parts
- 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 can be adjusted or pressed against the end faces of the casting rolls 1, 2.
- the adjusting device 13 is known per se; a similar adjusting device is described in detail, for example, in the aforementioned WO-A-01/23122. Therefore, only the essential elements of the adjusting device 13 are mentioned in the following, reference being made to the above-mentioned publication for the possible exact structure.
- the side seals 10 are laterally fed to or away from the casting rolls by means of a manipulator (not shown in the drawing).
- the adjusting device 13 comprises a connecting plate 50 shown in FIG. 1, which is connected in a manner not shown to a carrier element of the manipulator or is floatingly mounted on the latter.
- the holding frame 12 receiving the sealing plate 11 is mounted on the connecting plate 50 via articulated connections, which are formed by an approximately horizontal articulated lever 51 and a vertical articulated lever 52.
- the articulated levers 51, 52 are each at one end on the holding frame 12 and at the other end spherically supported on the connecting plate 50.
- the holding frame 12 is permanently pressed onto the pistons of three adjusting cylinders 55 via an elastic connection, for example an adjustable tension spring 53 with an anchor between it and the connecting plate 50, which, in the manner of a three-point support, has a controllable contact pressure on the respective one via the holding frame 12 Apply sealing plate 1 1.
- the actuating cylinders 55 are activated after the side seals 10 have been fed into the position on the side of the casting rolls 1, 2 and centered.
- 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, to a rear frame part 18 and on the other hand to the side part 20 enclosing the container-shaped part 16 and positioning it in its position.
- Both the rear frame part 18 and the side part 20 of the holding frame 12 are provided with cooling channels 22, 23 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 1 1 is preferably made of an inexpensive material, which can be a graphite-containing carbon or a mixture of SiO 2 , Al 2 O 3 , zirconium oxide and graphite - similar to today's cast pipes.
- On the sealing side 11 a it is coated with 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 application. The thickness of the layer is 0.1 to 2 mm.
- the sealing side 11 a can be coated with the same material over its entire surface. However, it can also be, for example, a different coating in the wetted area, for example with low wettability, with good insulation properties and wear values etc.
- the sealing plate 1 1 is supported in the container-shaped part 16 with its surface facing away from the sealing side 1 1 a on three hard supports 28 and is preferably positioned by means of holding elements 29 arranged on its circumference (this type of fastening enables the sealing plate 1 1 to be easily inserted and pressed out into the holding frame 12, ie quick replacement of the sealing plate 1 1).
- An insulation 30 is present between the sealing plate 11 and the container-shaped part 16. 2, the hard pads 28 are assigned to the corner regions of the essentially triangular sealing plate 11.
- the distribution cylinders 55 are equally distributed.
- the adjusting device 13 described above which allows a three-dimensional movement of the side seal 10 when the respective sealing plate 11 is pressed on or pressed on, enables a very precise support on the end faces of the casting rolls 1, 2 even in the heated operating state, as a result of which the wear is kept as small as possible becomes.
- the sealing plates 11 are first pressed against the end faces of the casting rollers 1, 2 for a comparatively short time and then relieved of the contact pressure and held in position before the stop and go adjustment of the sealing plates is carried out.
- the time for holding the position can be significantly longer than the time for the line-on with a predetermined force, namely after every 5 revolutions, whereby this can also take place after every 500 revolutions.
- the length of the setting time depends on the diameter of the casting rolls 1, 2, on the casting roll material, on the size of the contact pressure or contact force, on the casting speed, on the steel quality, on the material of the sealing plates 1 1 and / or on other factors.
- the response time is 1 to 30 seconds.
- the contact pressure is usually between 0.05 and 1 .00 N / mm 2 .
- the side seals 10 can be shifted or pivoted in the vertical and / or horizontal direction before the respective renewed engagement in order to avoid or reduce uneven wear.
- the setting of the sealing plates 11 with a predetermined force, which takes place at specific time intervals, is controlled by means of a monitoring and control system.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Steering Controls (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH11612003 | 2003-07-01 | ||
PCT/EP2004/006884 WO2005002757A1 (de) | 2003-07-01 | 2004-06-25 | Verfahren zum betrieb einer bandgiessmaschine für die erzeugung eines metallbandes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1646464A1 true EP1646464A1 (de) | 2006-04-19 |
EP1646464B1 EP1646464B1 (de) | 2006-11-29 |
Family
ID=33557705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740295A Expired - Lifetime EP1646464B1 (de) | 2003-07-01 | 2004-06-25 | Verfahren zum betrieb einer bandgiessmaschine f r die erzeug ung eines metallbandes |
Country Status (6)
Country | Link |
---|---|
US (1) | US7337827B2 (de) |
EP (1) | EP1646464B1 (de) |
CN (1) | CN100366364C (de) |
AT (1) | ATE346707T1 (de) |
DE (1) | DE502004002199D1 (de) |
WO (1) | WO2005002757A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7308930B2 (en) | 2006-03-09 | 2007-12-18 | Nucor Corporation | Method of continuous casting steel strip |
DE102008010653B4 (de) * | 2008-02-22 | 2019-04-04 | Outokumpu Nirosta Gmbh | Verfahren und Zwei-Walzen-Gießmaschine zum Herstellen von aus einer Metallschmelze gegossenem Band |
JP5837758B2 (ja) | 2011-04-27 | 2015-12-24 | キャストリップ・リミテッド・ライアビリティ・カンパニー | 双ロール鋳造装置及びその制御方法 |
US10046384B2 (en) | 2015-09-30 | 2018-08-14 | Nucor Corporation | Side dam with pocket |
CN110087800B (zh) * | 2016-12-26 | 2022-02-15 | 宝山钢铁股份有限公司 | 双辊薄带连铸侧封板的安装装置及其安装方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2652021A1 (fr) * | 1989-06-15 | 1991-03-22 | Siderurgie Fse Inst Rech | Paroi d'obturation laterale pour une installation de coulee continue entre parois mobiles. |
JPH0741376B2 (ja) * | 1990-06-11 | 1995-05-10 | 新日本製鐵株式会社 | 薄帯連続鋳造方法 |
FR2717410B1 (fr) * | 1994-03-15 | 1996-06-07 | Usinor Sacilor | Procédé et dispositif de coulée continue entre cylindres. |
FR2721843B1 (fr) * | 1994-06-30 | 1996-08-30 | Unisor Sacilor | Disposition de coulee continue entre cylindres a parois d'obturation laterale appliquees |
KR100333070B1 (ko) * | 1997-12-20 | 2002-10-18 | 주식회사 포스코 | 쌍롤식박판주조장치에서의에지댐위치제어방법 |
AUPP331598A0 (en) * | 1998-05-04 | 1998-05-28 | Bhp Steel (Jla) Pty Limited | Strip casting |
CH691574A5 (de) * | 1999-09-24 | 2001-08-31 | Main Man Inspiration Ag | Bandgiessmaschine zur Erzeugung eines Metallbandes. |
CN1168558C (zh) * | 2002-04-25 | 2004-09-29 | 重庆大学 | 双辊连铸机的侧封机构 |
AT412195B (de) * | 2002-06-25 | 2004-11-25 | Voest Alpine Ind Anlagen | Verfahren zur erzeugung eines metallbandes mit einer zweiwalzengiesseinrichtung |
-
2004
- 2004-06-25 EP EP04740295A patent/EP1646464B1/de not_active Expired - Lifetime
- 2004-06-25 US US10/563,543 patent/US7337827B2/en not_active Expired - Fee Related
- 2004-06-25 CN CNB2004800189925A patent/CN100366364C/zh not_active Expired - Fee Related
- 2004-06-25 AT AT04740295T patent/ATE346707T1/de active
- 2004-06-25 DE DE502004002199T patent/DE502004002199D1/de not_active Expired - Lifetime
- 2004-06-25 WO PCT/EP2004/006884 patent/WO2005002757A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2005002757A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20070006990A1 (en) | 2007-01-11 |
US7337827B2 (en) | 2008-03-04 |
WO2005002757A1 (de) | 2005-01-13 |
ATE346707T1 (de) | 2006-12-15 |
CN1816404A (zh) | 2006-08-09 |
CN100366364C (zh) | 2008-02-06 |
DE502004002199D1 (de) | 2007-01-11 |
EP1646464B1 (de) | 2006-11-29 |
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