EP1222039A1 - Procede de marquage de matiere laminee - Google Patents

Procede de marquage de matiere laminee

Info

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
Application number
EP01947185A
Other languages
German (de)
English (en)
Other versions
EP1222039B1 (fr
Inventor
Peter VAN HÜLLEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Georgsmarienhuette GmbH
Original Assignee
Georgsmarienhuette GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Georgsmarienhuette GmbH filed Critical Georgsmarienhuette GmbH
Publication of EP1222039A1 publication Critical patent/EP1222039A1/fr
Application granted granted Critical
Publication of EP1222039B1 publication Critical patent/EP1222039B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Laminated Bodies (AREA)

Abstract

Procédé de marquage de défauts dans / sur des matériaux laminés en forme de barres une fois que lesdites barres ont quitté le laminoir finisseur. Selon ledit procédé les sites des défauts sont détectés pendant le processus de laminage à l'aide du contrôle par ultrasons et/ou du contrôle inductif. Ces informations sont envoyées à un ordinateur qui identifie et met en mémoire ces informations selon la nature et la position dans le produit laminé. L'ordinateur commande alors à l'aide de ces données un dispositif de marquage de manière telle que le matériau fini en forme de barres est marqué en fonction de la nature de chaque défaut à l'emplacement déterminé par l'ordinateur.
EP01947185A 2000-06-16 2001-06-07 Procede de marquage de matiere laminee Expired - Lifetime EP1222039B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10029725 2000-06-16
DE10029725 2000-06-16
PCT/DE2001/002128 WO2001096040A1 (fr) 2000-06-16 2001-06-07 Procede de marquage de matiere laminee

Publications (2)

Publication Number Publication Date
EP1222039A1 true EP1222039A1 (fr) 2002-07-17
EP1222039B1 EP1222039B1 (fr) 2003-11-26

Family

ID=7645983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01947185A Expired - Lifetime EP1222039B1 (fr) 2000-06-16 2001-06-07 Procede de marquage de matiere laminee

Country Status (10)

Country Link
US (1) US6836696B2 (fr)
EP (1) EP1222039B1 (fr)
JP (1) JP4536998B2 (fr)
AT (1) ATE254970T1 (fr)
DE (2) DE10127564A1 (fr)
DK (1) DK1222039T3 (fr)
ES (1) ES2210177T3 (fr)
PT (1) PT1222039E (fr)
TR (1) TR200302167T4 (fr)
WO (1) WO2001096040A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (fr) * 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0196040A1 *

Also Published As

Publication number Publication date
PT1222039E (pt) 2004-04-30
US6836696B2 (en) 2004-12-28
ATE254970T1 (de) 2003-12-15
ES2210177T3 (es) 2004-07-01
TR200302167T4 (tr) 2004-02-23
JP2004503384A (ja) 2004-02-05
DE10127564A1 (de) 2002-01-03
JP4536998B2 (ja) 2010-09-01
EP1222039B1 (fr) 2003-11-26
WO2001096040A1 (fr) 2001-12-20
US20020123822A1 (en) 2002-09-05
DE50101028D1 (de) 2004-01-08
DK1222039T3 (da) 2004-03-29

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