EP1093865B1 - Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweissnähten verbundener Metallbänder und Tandemstrasse zur Durchführung des Verfahrens - Google Patents
Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweissnähten verbundener Metallbänder und Tandemstrasse zur Durchführung des Verfahrens Download PDFInfo
- Publication number
- EP1093865B1 EP1093865B1 EP00121628A EP00121628A EP1093865B1 EP 1093865 B1 EP1093865 B1 EP 1093865B1 EP 00121628 A EP00121628 A EP 00121628A EP 00121628 A EP00121628 A EP 00121628A EP 1093865 B1 EP1093865 B1 EP 1093865B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- rolling
- roll
- roll stand
- stand
- 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.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims abstract description 54
- 238000005096 rolling process Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims description 23
- 239000000463 material Substances 0.000 title 1
- 238000005259 measurement Methods 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 238000005097 cold rolling Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 description 13
- 238000005452 bending Methods 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000001595 flow curve Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 206010065433 Ligament rupture Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
- B21B41/12—Arrangements of interest only with respect to provision for indicating or controlling operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
- B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/003—Inactive rolling stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
- B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/50—Diminishing, minimizing or reducing
- B65H2601/51—Diminishing, minimizing or reducing entities relating to handled material
- B65H2601/511—Waste of handled material
Definitions
- the invention relates to a method for reducing the Scrap length when rolling welded seams Metal strips, especially when cold rolling austenitic and ferritic stainless steel strips.
- tandem lines with two or more rolling stands known. With such tandem streets, either one in essentially straight, tight strip guidance between the rolling stands realized or a loop lifter provided, around a strip length compensation between the rolling stands to be able to generate.
- tandem mills or rolling mills are becoming increasingly in-line in belt process lines used, e.g. B. in continuous rolling lines, continuous, pickling and Cold rolling lines or continuous, annealing, pickling and cold rolling lines for stainless steel strips, etc.
- strip processing lines are run continuously through the metal strips to be treated. These metal strips are unwound from coils and connected by means of welds. The roll stands must be carried out regularly when going through the welds be opened.
- the minimum scrap length corresponds twice the distance between the two rolling stands, because the one corresponding to this distance with respect to the weld length leading strip length also only in one Roll stand and consequently partially rolled is like that in with regard to the band length trailing the weld seam.
- the rolls are changed every 1 - 10 coils.
- the invention has for its object a method of Specify embodiment described above, after which there is scrap loss when welding seams pass through by significantly reducing the rolling stands that are open for this and accurate strip tension measurements between the roll stands as well as an exact presetting of the roll stands achieve in a simple and functional manner to let.
- the invention teaches a method for achieving this object to reduce the scrap length when rolling medium Welded seams of connected metal strips, especially when Cold rolling of austenitic and ferritic stainless steel strips, in a continuous tandem street with at least two roll stands, after which the respective weld seam before the first roll stand stopped or crept is, while the second mill stand that in relation to the The metal strip leading the weld seam rolls on and that Metal strip to be rolled further from a between two roll stands arranged strip store receives the first roll stand opened and the weld seam through the first roll stand is driven through, then the first roll stand closed and the weld after passing through of the strip store stopped in front of the second roll stand or is creeping while the first rolling stand that trailing in relation to the weld seam Metal strip rolls and the rolled metal strip from the strip storage is recorded, the second roll stand is opened and the weld seam is passed through the second roll stand then the second mill stand is closed and so on, and the respective weld in the area of the tape outlet from the connecting them Metal strips
- the Invention reduces the scrap length in the tandem mill and their rolling stands running and possibly continuous metal belts on practical the seam width of the connecting the metal strips Welds so that the scrap waste goes to zero, in any case extremely minimized.
- the tandem rolling of the welded metal strips and stainless steel strips In-line in continuously working belt process lines respectively.
- the invention further teaches that the belt tension in the lead-in area and the run-out area of the roll stands is measured, preferably also in the inlet area and outlet area of the Tape storage is measured.
- the invention goes the invention from the knowledge that the metal strips between the rolling stands and through the arranged there Tape storage can be deflected by an angle of ⁇ 90 °. Thereby the influence of the bending stiffness of the metal strips the measurement that is too large at small wrap angles Measurement errors leads, negligibly small. It just has to the strip weight must also be taken into account in the measurement. This allows a sufficiently precise tape tension measurement realize between the rolling stands and a more stable Set the rolling process.
- the belt pulls are expedient behind the first roll stand and in front of the second roll stand set.
- the tape strength can be determined by measuring the pulling force required for a given degree of stretch in an upstream stretch bending straightening system and / or about measuring the for a given skin pass level required rolling force in an upstream Skin pass mill to be determined.
- stretch bending straightening depends on the required pulling force for a given one Degree of stretching from the yield point and the flow curve, while the skin pass the required rolling force for a predetermined degree of skin passage from the yield point and depends on the flow curve. It is therefore possible from measurements the tape strength properties on upstream equipment of a coil before rolling to predetermine and via a rule model in the Let the setpoint flow into account. Through improved Target values can be avoided overrolling and strip breaks.
- the measures according to the invention lead to a higher output during rolling and a higher Productivity of the entire system.
- the invention also relates to a tandem mill especially to carry out the method according to the invention is suitable and at least two roll stands for rolling Metal strips, especially for cold rolling austenitic and has ferritic metal strips.
- This tandem road is characterized in that between the two rolling stands a strip store for rolling metal strips arranged with alternately open roll stands is. It can be in front of and behind and, if necessary, between Roll stand strip tension measuring devices can be arranged. Such tape tension measuring devices can also be in front of and behind the tape storage. With these tape tension measuring devices it is preferably load cells under the bearings of pulleys and / or tensioners for the continuous metal bands and a band wrap of at least 45 °, preferably ⁇ 90 °. Actually let it load cells for measuring tape tension on rolls with a Use belt wrapping up to 180 ° or more. Thereby are measurement errors as they are with rolls with small Wrap angles can occur almost completely, can are neglected in any case.
- the tandem road has two Roll stands 4, 5. Between the two roll stands 4, 5 is a strip storage 6 for rolling the continuous Metal strips 7 with alternately open roll stands 4, 5 shown.
- Belt tension measuring devices 8, 9 arranged, namely on the one hand in the area of the inlet clamping set 2, on the other hand in Area of the outlet clamping set 3. Beyond that too 6 tape tension measuring devices in front and behind the tape storage device 10, 11 arranged.
- the belt store 6 has a deflecting roller that can be raised and lowered 12 for the incoming and outgoing metal strip 7, the can be driven.
- 2 is the two metal strips 7a, 7b connecting Welded seam 13 and in front of the first roll stand 4 stopped there while the second mill stand 5 continues rolling and the metal strip 7b to be rolled the intermediate Tape storage 6 in the sense of a tape storage emptying extracts.
- 3 is the first roll stand 4th opened, a roll change may have taken place, the weld seam 13 has passed the first roll stand 4 and the first roll stand 4 has been closed again, while the second roll stand 5 has continuously rolled on. 4, the weld 13 is in front of the second roll stand 5 driven and stopped there while the first closed roll stand 4 that of the weld 13 subsequent metal strip 7a rolls and the strip storage 6 is loaded with rolled metal strip 7a.
- the second roll stand 5 has been opened, the weld seam 13 has been passed through, may have a Roll change took place and the roll stand 5 is again closed while the first mill stand 4 has continuously rolled on and the strip storage 6 has been filled again with rolled metal strip 7a.
- the cutting out or cutting out of the weld seam 13 can be done in the area of the tape outlet such that the scrap length to the width of the weld 13 is reduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Description
- Fig. 1
- eine erfindungsgemäße Tandemstraße in schematischer Seitenansicht und
- Fig.2-5
- einen Schweißnahtdurchlauf durch den Gegenstand nach Fig. 1, wobei die Walzgerüste wechselweise geöffnet werden, um einerseits einen kontinuierlichen Banddurchlauf, andererseits einen Walzenwechsel bei geöffneten Walzgerüsten zu ermöglichen.
Claims (13)
- Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweißnähten (13) verbundenen Metallbändern (7), insbesondere beim Kaltwalzen von austenitischen und ferritischen Edelstahlbändern, in einer durchlaufenden Tandemstraße mit zumindest zwei Walzgerüsten (4, 5), wonachdie jeweilige Schweißnaht (13) vor dem ersten Walzgerüst (4) angehalten oder im Schleichgang gefahren wird, während das zweite Walzgerüst (5), das in Bezug auf die Schweißnaht (13) vorlaufende Metallband (7b) weiterwalzt und das weiter zu walzende Metallband (7) aus einem zwischen beiden Walzgerüsten (4, 5) angeordneten Bandspeicher (6) erhält,das erste Walzgerüst (4) geöffnet und die Schweißnaht (13) durch das erste Walzgerüst (4) hindurchgefahren wird,anschließend das erste Walzgerüst (4) geschlossen und die Schweißnaht (13) nach dem Durchlaufen des Bandspeichers (6) vor dem zweiten Walzgerüst (5) angehalten oder im Schleichgang gefahren wird, während das erste Walzgerüst (4) das in Bezug auf die Schweißnaht (13) nachlaufende Metallband (7a) walzt und das gewalzte Metallband (7) von dem Bandspeicher (6) aufgenommen wird,das zweite Walzgerüst (5) geöffnet und die Schweißnaht (13) durch das zweite Walzgerüst (5) hindurchgefahren wird,anschließend das zweite Walzgerüst (5) geschlossen wird und so fort, unddie jeweilige Schweißnaht (13) im Bereich des Bandauslaufs aus den sie verbindenden Metallbändern (7) herausgetrennt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass im Zuge des Öffnens der Walzgerüste (4, 5) wahlweise ein Walzenwechsel vorgenommen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Tandemwalzen der durch die Schweißnaht (13) verbundene Metallbänder (7) In-line in Bandprozesslinien (1) erfolgt.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Bandzug im Einlaufbereich und Auslaufbereich der Walzgerüste (4, 5) gemessen wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Bandzug im Einlaufbereich und Auslaufbereich des Bandspeichers (6) gemessen wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Bandzüge hinter dem ersten Walzgerüst (4) und vor dem zweiten Walzgerüst (5) eingestellt werden.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass vor dem Walzen am Bandanfang zumindest die Banddicke und die Bandfestigkeit gemessen und zur Voreinstellung der Walzgerüste (4, 5) hinsichtlich der Walzkraft und des Planwalzens verwendet werden.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Bandfestigkeit über Kraftmessungen bei dem Walzen vorgeschalteten Scheren- und/oder Besäumvorgängen ermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Bandfestigkeit über die Messung der für einen vorgegebenen Streckgrad erforderlichen Zugkraft in einer vorgeschalteten Streckbiegerichtanlage und/oder über die Messung der für einen vorgegebenen Dressiergrad erforderlichen Walzkraft in einem vorgeschalteten Dressiergerüst ermittelt wird.
- Tandemstraße zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 9, mit zumindest zwei Walzgerüsten (4, 5) zum Walzen von Metallbändern (7), insbesondere zum Kaltwalzen austenitischer und ferritischer Metallbänder (7), dadurch gekennzeichnet, dass zwischen den beiden Walzgerüsten (4, 5) ein Bandspeicher (6) zum Walzen durchlaufender Metallbänder (7) bei wechselweise geöffneten Walzgerüsten (4, 5) angeordnet ist.
- Tandemstraße nach Anspruch 10, dadurch gekennzeichnet, dass vor und hinter und ggf. zwischen den Walzgerüsten (4, 5) Bandzugmessvorrichtungen (8, 9) angeordnet sind.
- Tandemstraße nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass vor und hinter dem Bandspeicher (6) Bandzugmessvorrichtungen (10, 11) angeordnet sind.
- Tandemstraße nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Bandzugmessvorrichtungen (8 - 11), z. B. Kraftmessdosen unter de Lagern von Umlenkrollen und/oder Spannrollen für die durchlaufenden Metallbänder (7) mit einer Bandumschlingung von mindestens 45°, vorzugsweise ≥ 90° angeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19950609A DE19950609C2 (de) | 1999-10-21 | 1999-10-21 | Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweißnähten verbundener Metallbänder und Tandemstraße zur Durchführung des Verfahrens |
DE19950609 | 1999-10-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1093865A2 EP1093865A2 (de) | 2001-04-25 |
EP1093865A3 EP1093865A3 (de) | 2001-05-02 |
EP1093865B1 true EP1093865B1 (de) | 2003-08-20 |
Family
ID=7926326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00121628A Expired - Lifetime EP1093865B1 (de) | 1999-10-21 | 2000-10-04 | Verfahren zum Reduzieren der Schrottlänge beim Walzen von mittels Schweissnähten verbundener Metallbänder und Tandemstrasse zur Durchführung des Verfahrens |
Country Status (6)
Country | Link |
---|---|
US (1) | US6357273B1 (de) |
EP (1) | EP1093865B1 (de) |
AT (1) | ATE247534T1 (de) |
DE (2) | DE19950609C2 (de) |
ES (1) | ES2200769T3 (de) |
ZA (1) | ZA200005828B (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4150276B2 (ja) * | 2003-03-20 | 2008-09-17 | 新日本製鐵株式会社 | 金属板材の圧延方法および圧延装置 |
DE102004041732A1 (de) * | 2004-08-28 | 2006-03-02 | Sms Demag Ag | Verfahren zum Richten eines Metallbandes und Richtmaschine |
US8607667B2 (en) * | 2005-10-26 | 2013-12-17 | The Gillette Company | Manufacturing razor blades |
US7578217B2 (en) * | 2005-10-26 | 2009-08-25 | The Gillette Company | Manufacturing razor blades |
DE102015116990A1 (de) | 2015-10-06 | 2017-04-06 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Verfahren und Anlage zum kontinuierlichen Herstellen von Verbundbändern oder -blechen |
CN105215063A (zh) * | 2015-10-24 | 2016-01-06 | 本钢不锈钢冷轧丹东有限责任公司 | 一种立式入口活套 |
DE102018122047A1 (de) | 2018-09-10 | 2020-03-12 | voestalpine Automotive Components Dettingen GmbH & Co. KG | Verfahren und vorrichtung zum verbinden von blechteilen zu blechpaketen |
DE102019110271A1 (de) * | 2019-04-18 | 2020-01-02 | Primetals Technologies Austria GmbH | Kaltwalzwerk mit alternativer Zuführung eines Stahlbandes über zwei verschiedene Wege |
JP7135991B2 (ja) * | 2019-04-25 | 2022-09-13 | トヨタ自動車株式会社 | 校正判断装置、及び校正判断方法 |
CN114054512B (zh) * | 2020-08-03 | 2024-09-06 | 上海梅山钢铁股份有限公司 | 一种酸洗板厚度数据归户方法 |
CN112453053B (zh) * | 2020-09-28 | 2023-07-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | 薄规格及极薄规格带钢生产中光整机处带钢起筋消除方法 |
CN114789199B (zh) * | 2021-10-14 | 2024-01-12 | 天津市新宇彩板有限公司 | 冷轧剪前夹送辊的自动精确控制方法及系统 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1575818A (de) * | 1968-05-16 | 1969-07-25 | ||
US3835681A (en) * | 1973-03-16 | 1974-09-17 | Wean United Inc | Continuous rolling mill |
US4179913A (en) * | 1976-10-29 | 1979-12-25 | National Steel Corporation | Metal strip tensioning apparatus for use in continuous strip reduction cold mill and method |
DE3441691C2 (de) * | 1984-11-15 | 1986-09-04 | Sundwiger Eisenhütte Maschinenfabrik Grah & Co, 5870 Hemer | Schlingenturm für Metallbänder |
JPS6227271A (ja) * | 1985-07-25 | 1987-02-05 | Mitsubishi Electric Corp | 連続処理設備の速度制御装置 |
US5197179A (en) * | 1991-04-18 | 1993-03-30 | T. Sendzimir, Inc. | Means and a method of improving the quality of cold rolled stainless steel strip |
DE4201471C2 (de) * | 1992-01-21 | 1995-04-20 | Walter Dr Ing Ammermann | Verfahren und Vorrichtung zum Bearbeiten von Schweißnähten, um Überdicken im Nahtbereich von Bandverbindungen durch partielles Walzen zu vermeiden |
DE19806161A1 (de) * | 1998-02-14 | 1999-08-19 | Schloemann Siemag Ag | Walzverfahren für ein Band, insbesondere ein Metallband |
-
1999
- 1999-10-21 DE DE19950609A patent/DE19950609C2/de not_active Expired - Fee Related
-
2000
- 2000-10-04 DE DE50003345T patent/DE50003345D1/de not_active Expired - Fee Related
- 2000-10-04 EP EP00121628A patent/EP1093865B1/de not_active Expired - Lifetime
- 2000-10-04 AT AT00121628T patent/ATE247534T1/de not_active IP Right Cessation
- 2000-10-04 ES ES00121628T patent/ES2200769T3/es not_active Expired - Lifetime
- 2000-10-17 US US09/690,867 patent/US6357273B1/en not_active Expired - Fee Related
- 2000-10-19 ZA ZA200005828A patent/ZA200005828B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE50003345D1 (de) | 2003-09-25 |
DE19950609A1 (de) | 2001-05-03 |
ZA200005828B (en) | 2001-05-17 |
US6357273B1 (en) | 2002-03-19 |
ATE247534T1 (de) | 2003-09-15 |
DE19950609C2 (de) | 2001-10-18 |
EP1093865A3 (de) | 2001-05-02 |
ES2200769T3 (es) | 2004-03-16 |
EP1093865A2 (de) | 2001-04-25 |
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