EP1222039A1 - Verfahren zum markieren von walzmaterial - Google Patents
Verfahren zum markieren von walzmaterialInfo
- Publication number
- EP1222039A1 EP1222039A1 EP01947185A EP01947185A EP1222039A1 EP 1222039 A1 EP1222039 A1 EP 1222039A1 EP 01947185 A EP01947185 A EP 01947185A EP 01947185 A EP01947185 A EP 01947185A EP 1222039 A1 EP1222039 A1 EP 1222039A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- marking
- computer
- error
- defects
- cutting
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
-
- 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
Definitions
- the invention relates to a method for marking material defects detected in / on rod-shaped rolling stock.
- pre-rolled steel products are checked for internal and external defects with the help of suitable test equipment.
- Ultrasonic probes are used to detect surface defects, for example continuous coils or eddy current probes rotating around the roller core.
- the errors determined are marked on the product, for example a round rod, over the entire circumference or only locally, depending on their type. Surface defects do not always lead to rejection of the bars, as they can be repairable. Internal defects cannot be repaired. The defective piece must be cut out.
- the invention has for its object to carry out a method of the type mentioned in such a way that the errors are recognized as early as possible during the rolling process and the marking on both the still hot and the cooled material before further operations such as e.g. straightening can take place and thus the time between rolling, checking and sorting out the defective bars is minimized. Any forming steps or cooling sections between the internal inspection and the external inspection are taken into account accordingly.
- the invention solves this problem by a method in which the defects during the rolling process are detected by means of ultrasound testing and / or inductive testing, this information is fed to a computer and identified and stored by the latter according to type and position in the rolled product, and the computer is based on this data controls a marking device such that the rod-shaped finished material is marked at the location determined by the computer in accordance with the respective type of error.
- An essential aspect of the present invention is therefore seen in the fact that the defects can also be detected before the finish rolling, that is to say at a location where the starting product has not yet been rolled out to such an extent that the existing defects can be "overlooked", which recognized defects, however, are marked on the finished part by type and position in the finished part directly after the rolling process or after cutting to a cooling bed or customer length, so that the faulty products can be sorted into "good”, “repairable” or “scrap” depending on the type of defect.
- marking primarily means a colored marking from the end product.
- the marking can be made for internal and external defects or repairable and irreparable defects with different colors.
- the fault detection according to claim 2 is only started with a time delay, depending on the final roll speed (3 m / sec to 15 m / sec), so that the head piece, which is to be skimmed anyway, Detection and thus not taken into account when marking.
- the detected individual errors are added up during a preset period and the marking command is only triggered when a predefined error relevance level is reached.
- the identified relevant defects can be marked directly on the hot rolling material shortly after leaving the last rolling stand, ie before cutting to the length of the cooling bed.
- the marking can also be carried out after cooling on the cooling bed before or after cutting to customer length.
- the program must logically mark the computer so that the faulty part of the roll core can be virtually marked and sorted out.
- the program of the computer can determine how the cooling bed lengths are optimally used for the division into customer lengths.
- This method according to the invention possibly in connection with an automatic sorting device, leads to a high rationalization effect, which concerns costs on the one hand and time expenditure on the other.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Metal Rolling (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Replacement Of Web Rolls (AREA)
- Control Of Metal Rolling (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10029725 | 2000-06-16 | ||
DE10029725 | 2000-06-16 | ||
PCT/DE2001/002128 WO2001096040A1 (de) | 2000-06-16 | 2001-06-07 | Verfahren zum markieren von walzmaterial |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1222039A1 true EP1222039A1 (de) | 2002-07-17 |
EP1222039B1 EP1222039B1 (de) | 2003-11-26 |
Family
ID=7645983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01947185A Expired - Lifetime EP1222039B1 (de) | 2000-06-16 | 2001-06-07 | Verfahren zum markieren von walzmaterial |
Country Status (10)
Country | Link |
---|---|
US (1) | US6836696B2 (de) |
EP (1) | EP1222039B1 (de) |
JP (1) | JP4536998B2 (de) |
AT (1) | ATE254970T1 (de) |
DE (2) | DE10127564A1 (de) |
DK (1) | DK1222039T3 (de) |
ES (1) | ES2210177T3 (de) |
PT (1) | PT1222039E (de) |
TR (1) | TR200302167T4 (de) |
WO (1) | WO2001096040A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT411579B (de) * | 2002-07-26 | 2004-03-25 | Numtec Interstahl Beteiligungs | Verfahren und markiereinrichtung für ein stranggussprofil |
DE102005044760B3 (de) * | 2005-09-20 | 2007-04-12 | Georgsmarienhütte Gmbh | Vorrichtung zur Ultraschallprüfung von heißem Walzmaterial |
AT510662B1 (de) * | 2010-08-13 | 2014-01-15 | Voestalpine Stahl Gmbh | Vorrichtung und verfahren zum berührungslosen erkennen wenigstens einer fehlerstelle und/oder mindestens einer abmessung an einem warmen stranggegossenen material |
DE102012206221A1 (de) * | 2012-03-14 | 2013-09-19 | Sms Siemag Ag | Verfahren und Vorrichtung zur Oberflächeninspektion von metallurgischen Gießprodukten in einer Produktionslinie |
DE102013217101A1 (de) * | 2012-12-27 | 2014-07-17 | Sms Siemag Ag | Stranggießvorrichtung und Verfahren zur Produktion und/oder Inspektion von metallurgischen Gießprodukten |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673493A (en) * | 1970-04-21 | 1972-06-27 | Bethlehem Steel Corp | One-probe method and apparatus for detecting, correlating, and classifying defects in test members |
JPS5131794B2 (de) * | 1971-12-17 | 1976-09-08 | ||
DE2351525A1 (de) * | 1973-10-13 | 1975-04-24 | Bbc Brown Boveri & Cie | Verfahren zur stablaengenermittlung |
DE2726454B2 (de) * | 1977-06-11 | 1979-08-23 | Hoesch Werke Ag, 4600 Dortmund | Verfahren zum Kennzeichnen von bewegten Tafeln und Bändern |
US4958307A (en) * | 1987-11-20 | 1990-09-18 | Kabushiki Kaisha Toshiba | Roll mark inspection apparatus |
US5379237A (en) * | 1990-05-31 | 1995-01-03 | Integrated Diagnostic Measurement Corporation | Automated system for controlling the quality of regularly-shaped products during their manufacture |
DE4020839A1 (de) * | 1990-06-29 | 1991-04-25 | Daimler Benz Ag | Verfahren zum herstellen und verarbeiten von wickelbarem feinblech |
JPH04305316A (ja) * | 1991-04-02 | 1992-10-28 | Nippon Steel Corp | ストリップ材の品質管理データの処理方法 |
DE4217007A1 (de) * | 1992-05-22 | 1993-11-25 | Foerster Inst Dr Friedrich | Verfahren und Vorrichtung zur Überwachung und Sicherung der Produktqualität |
US5654977A (en) * | 1995-02-02 | 1997-08-05 | Teledyne Industries Inc. | Method and apparatus for real time defect inspection of metal at elevated temperature |
JPH08313223A (ja) * | 1995-05-16 | 1996-11-29 | Ls Electro Galvanizing Co | 移動ストリップを監視する方法と装置 |
DE19609563C1 (de) * | 1996-03-12 | 1997-09-04 | Fraunhofer Ges Forschung | Verfahren und Einrichtung zum Markieren von Objekten |
US5808202A (en) * | 1997-04-04 | 1998-09-15 | Passarelli, Jr.; Frank | Electromagnetic acoustic transducer flaw detection apparatus |
US6266983B1 (en) * | 1998-12-09 | 2001-07-31 | Kawasaki Steel Corporation | Method and apparatus for detecting flaws in strip, method of manufacturing cold-rolled steel sheet and pickling equipment for hot-rolled steel strip |
-
2001
- 2001-06-06 DE DE10127564A patent/DE10127564A1/de not_active Ceased
- 2001-06-07 AT AT01947185T patent/ATE254970T1/de active
- 2001-06-07 US US10/069,496 patent/US6836696B2/en not_active Expired - Fee Related
- 2001-06-07 TR TR2003/02167T patent/TR200302167T4/xx unknown
- 2001-06-07 EP EP01947185A patent/EP1222039B1/de not_active Expired - Lifetime
- 2001-06-07 JP JP2002510211A patent/JP4536998B2/ja not_active Expired - Fee Related
- 2001-06-07 PT PT01947185T patent/PT1222039E/pt unknown
- 2001-06-07 DK DK01947185T patent/DK1222039T3/da active
- 2001-06-07 ES ES01947185T patent/ES2210177T3/es not_active Expired - Lifetime
- 2001-06-07 DE DE50101028T patent/DE50101028D1/de not_active Expired - Lifetime
- 2001-06-07 WO PCT/DE2001/002128 patent/WO2001096040A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0196040A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE50101028D1 (de) | 2004-01-08 |
JP4536998B2 (ja) | 2010-09-01 |
PT1222039E (pt) | 2004-04-30 |
US20020123822A1 (en) | 2002-09-05 |
DK1222039T3 (da) | 2004-03-29 |
TR200302167T4 (tr) | 2004-02-23 |
WO2001096040A1 (de) | 2001-12-20 |
US6836696B2 (en) | 2004-12-28 |
JP2004503384A (ja) | 2004-02-05 |
EP1222039B1 (de) | 2003-11-26 |
DE10127564A1 (de) | 2002-01-03 |
ES2210177T3 (es) | 2004-07-01 |
ATE254970T1 (de) | 2003-12-15 |
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