EP1543900A1 - Verfahren und Stranggiessmaschine zum Grundeinstellen und Kontrollieren der Rollenspalte von Stützrollensegmenten oder Treiberrollenpaaren beim Giessen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen - Google Patents
Verfahren und Stranggiessmaschine zum Grundeinstellen und Kontrollieren der Rollenspalte von Stützrollensegmenten oder Treiberrollenpaaren beim Giessen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen Download PDFInfo
- Publication number
- EP1543900A1 EP1543900A1 EP04027633A EP04027633A EP1543900A1 EP 1543900 A1 EP1543900 A1 EP 1543900A1 EP 04027633 A EP04027633 A EP 04027633A EP 04027633 A EP04027633 A EP 04027633A EP 1543900 A1 EP1543900 A1 EP 1543900A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- piston
- support
- support roller
- rollers
- 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 26
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 9
- 239000010959 steel Substances 0.000 title claims abstract description 9
- 238000009749 continuous casting Methods 0.000 title claims description 17
- 239000007788 liquid Substances 0.000 title claims description 8
- 229910001338 liquidmetal Inorganic materials 0.000 title claims description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
- B22D11/208—Controlling or regulating processes or operations for removing cast stock for aligning the guide rolls
Definitions
- the invention relates to a method and a continuous casting machine for basic adjustment and controlling the roll nips of support roll segments or pairs of driver rolls in a continuous casting machine for the casting of liquid metals, in particular of liquid steel materials, in which the roller gap between two itself opposite support rollers of the fixed side and the loose side over pairwise hydraulic Piston-cylinder units with integrated electronic displacement or position encoders is measured and regulated, with the measured values within a control loop the controller for the cast on the casting strand in time periods Forces are evaluated.
- the position-controlled piston-cylinder units of the support roller segments become on an alignment stand in a remote workshop by means of a so-called calibration slab adjusted over the total length of all support roller pairs and the measured values the calibration for the relevant support roller segment to the control of Continuous casting plant transmitted.
- the roller gaps can be installed in the scaffold after installation again deviate the continuous casting, so as a precaution, a roller gap tester is driven through the roller gap path.
- the calibration slab can also be embedded by means of a crane from above into the roller gap path and then the piston-cylinder units of all support roller segments on the Total length of all pairs of rolls set.
- the invention is based on the object, the roller gap setting individual To make support roller pairs largely separated in smaller steps and thereby to get more accurate results, so that the roller gap path altogether more accurate can be adjusted.
- the stated object is achieved in that at least one Roller pair detecting calibration piece moved through the open Rollenenspaltweg and during the transport movement between each two opposite Support rollers clamped for a short time and each associated with the clamping positions Positions of the piston-cylinder units are stored metrologically and after a desired-actual value comparison, the positions of the piston-cylinder units be corrected before casting start or in a casting break.
- This will be without special Tool simplifies the basic procedure and by the smaller ones Measuring steps achieved a higher accuracy of the roller gap path.
- the method can also be applied to individual support roller pairs be applied. For an in-line measurement, there are a maximum of two existing pairs of rollers required.
- One embodiment is that with roller pairs mounted in support roller segments the measurements between consecutive support roll segments be made a maximum of three pairs of rollers overlapping calibration piece. For in-line measurement of support roller segment transitions and averaging When determining measured values, it is advantageous to use the measuring method to expand to a maximum of three pairs of roles.
- Another measure is that the calibration piece in the roller gap is moved either from top to bottom or from bottom to top. Thereby Measuring times can be independent of plant downtime during production or be integrated during the casting start process.
- An accuracy-securing measure is that based on the vertical distance of the lowest pair of rollers up to one (in height) middle Roller pair in a support roller segment the upper piston-cylinder unit (of two per support roller segment of superposed pairs) is position-controlled to a fixed value becomes.
- the advantage is an even more accurate measurement result.
- the lower piston-cylinder unit a fixed value in the position is regulated.
- the device for carrying out the method is based on a prior art from, with a continuous casting machine for liquid metals, especially for liquid Steel materials, with the cast strand leading and / or supporting support roll segments or pairs of driver rolls, each paired, top and bottom lower hydraulic piston-cylinder units with integrated electronic Wegoder Positioners for adjusting the roller gap between at least two each have opposing support rollers of the fixed side and the lot side, wherein the successive support roller pairs form a roller gap path and the readings within a control loop of the control for the cast strand be used in periods to be transmitted forces.
- the stated object is achieved according to the invention in that a calibration piece, which is attached to a traction means, from support roller pair to support roller pair in Roller gap path movable and between a support roller pair by means of the respective Piston-cylinder unit is clamped and the associated positions of the Piston-cylinder units are metrologically stored and before casting start or in Guiellopausen are controllable. This results in measurement results in smaller steps and therefore more accurate.
- the traction means may consist of a starter train according to another feature.
- the length of the calibration piece is successive in the roller gap path a maximum of three support roller pairs is tuned.
- the liquid steel material 1 flows from a distribution vessel 2 into an oscillating one Continuous casting mold 3 and is cooled in a spray chamber 4 so far that an all-round strand shell surrounds the still liquid core.
- the cast strand 5 forms a thin slab 5a with a rectangular cross-section, on the other Path through a roller gap 6 in several consecutive support roller segments 7 out and / or supported and further cooled.
- Each support roll segment 7 consists of (idle) support rollers 8a and 8b, the one fixed side. 9 from unobstructed support rollers 8a and a loose side 10 for different casting strand thicknesses form adjustable support rollers 8b.
- the adjustability results from Piston-cylinder units 11 and 12, which are arranged in pairs over the strand width are (Fig. 2 to 4).
- the piston-cylinder units 11, 12 form the roller gap path 13 by means of position sensors 14 via a control circuit 15 to the respective, eg. shrinkage changing roller gap 13 and on the applied Support forces.
- the casting strand 5 via a Bending driver 16, Biegerollencrue 17 by means of a Bietempotreibers 18 in the horizontal shaped.
- the bow-casting machines When starting the casting process, the casting strand 5 by means of a start-up bolt 19 pulled out, the bow-casting machines also from a limbs-Anfahrstrangkette can exist and pulled out by means of a roller drive 20 and after uncoupling by the bending driver 16 in a quiver 21 parked for a later use.
- the method of basing and controlling the roller gap 6 ( Figure 2) operates in such a way that a calibrating piece 22 which detects at least one pair of rollers 8a, 8b is moved through the open Rollenenspaltweg 13 and during the transport movement between each two opposing support rollers 8a, 8b for a short Time span (outside of the casting shop or before the casting start) clamped and the respective positions of the piston-cylinder units associated with the clamping positions 11, 12 metrologically stored and after a setpoint-actual value comparison 23, the determined position of the piston-cylinder units 11, 12 are corrected.
- the upper Piston-cylinder unit 11 is regulated to a fixed value in this position.
- Fig. 3 is on the vertical distance 24 between the calibration piece 22 or 22a and the first roller pair 27 in the support roller segment 7, the measured values of the position the lower piston-cylinder unit 12 stored in a computer 30 (see. also Fig. 4).
- the calibration piece 22 or 22a shown in FIGS. 2 to 4 is attached to a traction means 28 attached, in the embodiment of a starter strand in the form of a Anfahrbolzens 19 exists.
- the calibration piece 22, 22a is from the support roller pair 8a, 8b moved to the next support roller pair 8a, 8b within the roller gap path 13 and is between the opposing support rollers 8a, 8b by means of the respective Piston-cylinder unit 11 or 12 clamped.
- the position obtained thereby Piston-cylinder units 11 or 12 are memorized position-controlled and controlled by force casting prior to casting start or in casting pauses.
- the layer 31 of the calibration piece 22; 22a held, for example, on a Measuring roller or a driven roller in the pulse path 13 with a pulse generator and the data is passed to an evaluation unit 29.
- the calibration piece 22 or 22a is in its length to a minimum of two in the roller gap path 13 consecutive support rollers 8a, 8a and 8b, 8b tuned.
- the shape and dimensions of the calibration piece 22, 22a are both of the continuous caster type as well as the starting line used as traction means 28 tuned.
- Fig. 4 are in the control loop 15, the desired position or the desired force of the upper Piston-cylinder unit 11 and the lower piston-cylinder unit 12 shown.
- the respective actual position is determined by the position sensor 14.
- Actual positions and target positions are respectively in the evaluation unit 29, the at the computer 30 is connected, entered, in which also the position 31 of the calibration piece 22, 22a is taken into account for each measurement.
- a setpoint-actual value comparison 23 and in the central computer 30 or the evaluation unit 29 takes place the calculation of the current, relative to the default setting (Position 31 of the calibration 22, 22 a) to be made correction 32 of the respective Piston-cylinder unit 11, 12 based on the position 31 of the Kalibrierstükkes , position-controlled before the casting start or in pouring breaks and force-controlled during of the casting operation.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht einer Dünnbrammen-Stranggießmaschine im Schnitt,
- Fig. 2
- eine schematisierte Seitenansicht eines geraden Senkrecht-Stützrollensegmentes mit einem Kalibrierstück, als Blockschaltbild zusammen mit einer oberen und einer unteren Kolben-Zylinder-Einheit,
- Fig. 3
- dieselbe Seitenansicht wie Fig. 2 mit einem alternativen Kalibrierstück und
- Fig. 4
- die Seitenansicht wie die Fig. 2 und 3 als Blockschaltbild innerhalb der gesamten Steuerungseinrichtung der Stranggießmaschine.
- 1
- (flüssiger ) Stahlwerkstoff
- 2
- Verteilergefäß
- 3
- oszillierende Stranggießkokille
- 4
- Spritzkammer
- 5
- Gießstrang
- 5a
- Dünnbramme
- 6
- Rollenspalt
- 7
- Stützrollensegment
- 8a
- Stützrolle
- 8b
- Stützrolle
- 9
- Festseite
- 10
- Losseite
- 11
- (obere) Kolben-Zylinder-Einheit
- 12
- (untere) Kolben-Zylinder-Einheit
- 13
- Rollenspaltweg
- 14
- Positionsgeber
- 15
- Regelkreis
- 16
- Biegetreiber
- 17
- Biegerollen
- 18
- Biege-Richt-Treiber
- 19
- Anfahrbolzen
- 20
- Rollenantrieb für Anfahrbolzen
- 21
- Köcher
- 22
- Kalibrierstück
- 22a
- Kalibrierstück für mehr als zwei Stützrollen
- 23
- Soll-Istwert-Vergleich
- 24
- vertikaler Abstand
- 25
- unterstes Rollenpaar
- 26
- mittleres Rollenpaar
- 27
- erstes Rollenpaar
- 28
- Zugmittel
- 29
- Auswerte-Einheit
- 30
- zentraler Rechner
- 31
- Lage des Kalibrierstücks
- 32
- Korrektur
Claims (12)
- Verfahren zum Grundeinstellen und Kontrollieren der Rollenspalte (6) von Stützrollensegmenten (7) oder Treiberrollenpaaren in einer Stranggießmaschine zum Gießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen (1), bei dem der Rollenspalt (6) zwischen zwei sich gegenüberliegenden Stützrollen (8a; 8b) der Festseite (9) und der Losseite (10) über paarweise hydraulische Kolben-Zylinder-Einheiten (11, 12) mit integrierten elektronischen Weg- oder Positionsgebern (14) gemessen und geregelt wird, wobei die Messwerte innerhalb eines Regelkreises (15) der Steuerung für die auf den Gießstrang (5) in Zeitabschnitten zu übertragenden Kräfte ausgewertet werden,
dadurch gekennzeichnet, dass ein zumindest ein Rollenpaar (8a; 8b) erfassendes Kalibrierstück (22; 22a) durch den offenen Rollenspaltweg (13) bewegt und während der Transportbewegung zwischen jeweils zwei sich gegenüberliegenden Stützrollen (8a; 8b) für eine kurze Zeit geklemmt und die jeweils den Klemmstellungen zugehörigen Positionen der Kolben-Zylinder-Einheiten (11; 12) messtechnisch gespeichert und nach einem Soll-Istwert-Vergleich (23) die Positionen der Kolben-Zylinder-Einheiten (11; 12) vor Gießstart oder in einer Gießpause korrigiert werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass bei in Stützrollensegmenten (7) gelagerten Rollenpaaren (8a; 8b) die Messungen zwischen aufeinander folgenden Stützrollensegmenten (7) an einem maximal drei Rollenpaare (8a; 8b) überdeckenden Kalibrierstück (22a) vorgenommen werden. - Verfahren nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet, dass das Kalibrierstück (22; 22a) im Rollenspaltweg (13) entweder von oben nach unten oder von unten nach oben bewegt wird. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass bezogen auf den vertikalen Abstand (24) des untersten Rollenpaares (25) bis zu einem mittleren Rollenpaar (26) in einem Stützrollensegment (7) die obere Kolben-Zylinder-Einheit (11) auf einen festen Wert positionsgeregelt wird. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass bezogen auf den jeweiligen vertikalen Abstand (24) zwischen dem Kalibrierstück (22; 22a) und dem ersten Rollenpaar (27) auf der Festseite (9) im Stützrollensegment (7) die Messwerte der Position der unteren Kolben-Zylinder-Einheit (12) gespeichert werden. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass von einem mittleren Rollenpaar (26) bis zum ersten Rollenpaar (27) eines Stützrollensegmentes (7) die untere Kolben-Zylinder-Einheit ( ) auf einen festen Wert in der Position geregelt wird. - Verfahren nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass bezogen auf den vertikalen Abstand (24) zwischen dem Kalibrierstück (22; 22a) und dem letzten Stützrollenpaar (8a) auf der Festseite (9) die jeweilige Position in der kraftgeregelten, oberen Kolben-Zylinder-Einheit (11) eines Stützrollensegmentes (7) mit ihren Messwerten gespeichert werden. - Stranggießmaschine für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe (1), mit den Gießstrang (5) führenden und / oder stützenden Stützrollensegmenten (7) oder Treiberrollenpaaren, die jeweils paarweise angeordnete, obere und untere hydraulische Kolben-Zylinder-Einheiten (11; 12) mit integrierten elektronischen Weg- oder Positionsgebern (14) zur Einstellung des Rollenspaltes (6) zwischen zumindest zwei sich jeweils gegenüberliegenden Stützrollen (8a; 8b) der Festseite (9) und der Losseite (10) aufweisen, wobei die aufeinanderfolgenden Stützrollenpaare (8a; 8b) einen Rollenspaltweg (13) bilden und die Messwerte innerhalb eines Regelkreises (15) der Steuerung für die auf den Gießstrang (5) in Zeitabschnitten zu übertragenden Kräfte eingesetzt werden,
dadurch gekennzeichnet, dass ein Kalibrierstück (22), das an einem Zugmittel (28) befestigt ist, von Stützrollenpaar ( 8a, 8b) zu Stützrollenpaar (8a; 8b) im Rollenspaltweg (13) bewegbar und zwischen einem Stützrollenpaar ( 8a; 8b) mittels der jeweiligen Kolben-Zylinder-Einheit (11; 12) eingeklemmt wird und die damit verbundenen Positionen der Kolben-Zylinder-Einheiten (11; 12) messtechnisch gespeichert und vor dem Gießstart oder in Gießpausen kontrollierbar sind. - Stranggießmaschine nach Anspruch 8,
dadurch gekennzeichnet, dass das Zugmittel (28) aus einem Anfahrstrang (19) besteht. - Stranggießmaschine nach einem der Ansprüche 8 und 9,
dadurch gekennzeichnet, dass das Kalibrierstück (22; 22a) in seiner Länge auf im Rollenspaltweg (13) aufeinanderfolgenden maximal drei Stützrollenpaaren (8a; 8b) abgestimmt ist. - Stranggießmaschine nach einem der Ansprüche 8 bis 10,
dadurch gekennzeichnet, dass die Form und Abmessungen des Kalibrierstücks (22; 22a) auf den Stranggießanlagen-Typ und den verwendeten Anfahrstrang (19) abgestimmt sind. - Stranggießmaschine nach einem der Ansprüche 8 bis 11,
dadurch gekennzeichnet, dass die Messwert-Aufzeichnung , die Zuordnung und die Auswertung der Messergebnisse in einem zentralen Rechner (30) im Schalthaus erfolgen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10359380 | 2003-12-18 | ||
DE10359380A DE10359380A1 (de) | 2003-12-18 | 2003-12-18 | Verfahren und Stranggießmaschine zum Grundeinstellen und Kontrollieren der Rollenspalte von Stützrollensegmenten oder Treiberrollenpaaren beim Gießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1543900A1 true EP1543900A1 (de) | 2005-06-22 |
EP1543900B1 EP1543900B1 (de) | 2008-03-12 |
Family
ID=34485455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04027633A Not-in-force EP1543900B1 (de) | 2003-12-18 | 2004-11-22 | Verfahren und Stranggiessmaschine zum Grundeinstellen und Kontrollieren der Rollenspalte von Stützrollensegmenten oder Treiberrollenpaaren beim Giessen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1543900B1 (de) |
AT (1) | ATE388776T1 (de) |
DE (2) | DE10359380A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008034500A1 (de) * | 2006-09-19 | 2008-03-27 | Sms Demag Ag | Verfahren zum stranggiessen eines metallstranges |
CN102416450A (zh) * | 2011-12-21 | 2012-04-18 | 宝钢工程技术集团有限公司 | 薄带连铸带钢自由活套位置控制装置及控制方法 |
CN111001772A (zh) * | 2019-12-24 | 2020-04-14 | 中冶南方连铸技术工程有限责任公司 | 轻压下或重压下辊缝控制方法及装置 |
CN112985861A (zh) * | 2021-02-19 | 2021-06-18 | 北京首钢自动化信息技术有限公司 | 一种拉矫机扇形段故障诊断方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3962794A (en) * | 1973-10-24 | 1976-06-15 | Sumitomo Metal Industries, Ltd. | Automatic roll position measuring apparatus for continuous casting machine |
US4344232A (en) * | 1980-09-09 | 1982-08-17 | Bethlehem Steel Corporation | Method and apparatus for measuring roll gap and alignment for continuous casters |
DE19627336C1 (de) * | 1996-06-28 | 1997-09-18 | Mannesmann Ag | Verfahren zum Führen eines Stranges und Strangführung |
WO1999046071A2 (de) * | 1998-03-09 | 1999-09-16 | Sms Schloemann Siemag Aktiengesellschaft | Anstellverfahren für ein rollensegment einer stranggiessanlage |
-
2003
- 2003-12-18 DE DE10359380A patent/DE10359380A1/de not_active Withdrawn
-
2004
- 2004-11-22 AT AT04027633T patent/ATE388776T1/de active
- 2004-11-22 EP EP04027633A patent/EP1543900B1/de not_active Not-in-force
- 2004-11-22 DE DE502004006480T patent/DE502004006480D1/de active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3962794A (en) * | 1973-10-24 | 1976-06-15 | Sumitomo Metal Industries, Ltd. | Automatic roll position measuring apparatus for continuous casting machine |
US4344232A (en) * | 1980-09-09 | 1982-08-17 | Bethlehem Steel Corporation | Method and apparatus for measuring roll gap and alignment for continuous casters |
DE19627336C1 (de) * | 1996-06-28 | 1997-09-18 | Mannesmann Ag | Verfahren zum Führen eines Stranges und Strangführung |
WO1999046071A2 (de) * | 1998-03-09 | 1999-09-16 | Sms Schloemann Siemag Aktiengesellschaft | Anstellverfahren für ein rollensegment einer stranggiessanlage |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008034500A1 (de) * | 2006-09-19 | 2008-03-27 | Sms Demag Ag | Verfahren zum stranggiessen eines metallstranges |
US8205662B2 (en) | 2006-09-19 | 2012-06-26 | Sms Demag Aktiengesellschaft | Method for the continuous casting of a metal strand |
CN101516545B (zh) * | 2006-09-19 | 2012-12-12 | Sms西马格股份公司 | 用于连续铸造金属连铸坯的方法 |
CN102416450A (zh) * | 2011-12-21 | 2012-04-18 | 宝钢工程技术集团有限公司 | 薄带连铸带钢自由活套位置控制装置及控制方法 |
CN111001772A (zh) * | 2019-12-24 | 2020-04-14 | 中冶南方连铸技术工程有限责任公司 | 轻压下或重压下辊缝控制方法及装置 |
CN111001772B (zh) * | 2019-12-24 | 2021-08-24 | 中冶南方连铸技术工程有限责任公司 | 轻压下或重压下辊缝控制方法及装置 |
CN112985861A (zh) * | 2021-02-19 | 2021-06-18 | 北京首钢自动化信息技术有限公司 | 一种拉矫机扇形段故障诊断方法 |
CN112985861B (zh) * | 2021-02-19 | 2022-08-09 | 北京首钢自动化信息技术有限公司 | 一种拉矫机扇形段故障诊断方法 |
Also Published As
Publication number | Publication date |
---|---|
DE502004006480D1 (de) | 2008-04-24 |
DE10359380A1 (de) | 2005-07-14 |
EP1543900B1 (de) | 2008-03-12 |
ATE388776T1 (de) | 2008-03-15 |
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