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1. WO2006042748 - METHOD, DEVICE AND CIRCUIT FOR DETECTING SURFACE DEFECTS SUCH AS CRACKS, FRACTURES AND THE LIKE ON A ROLLING MILL ROLLERS

Publication Number WO/2006/042748
Publication Date 27.04.2006
International Application No. PCT/EP2005/011225
International Filing Date 19.10.2005
Chapter 2 Demand Filed 19.05.2006
IPC
G01N 29/04 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
04Analysing solids
G01N 29/22 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22Details
G01N 29/27 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22Details
26Arrangements for orientation or scanning
27by moving the material relative to a stationary sensor
G01N 29/24 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
22Details
24Probes
G01N 29/44 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
29Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
44Processing the detected response signal
CPC
G01N 2291/0258
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
02Indexing codes associated with the analysed material
025Change of phase or condition
0258Structural degradation, e.g. fatigue of composites, ageing of oils
G01N 2291/0422
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
04Wave modes and trajectories
042Wave modes
0422Shear waves, transverse waves, horizontally polarised waves
G01N 2291/048
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
04Wave modes and trajectories
048Transmission, i.e. analysed material between transmitter and receiver
G01N 2291/102
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
10Number of transducers
102one emitter, one receiver
G01N 2291/2634
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
26Scanned objects
263Surfaces
2634cylindrical from outside
G01N 2291/265
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2291Indexing codes associated with group G01N29/00
26Scanned objects
265Spherical objects
Applicants
  • SMS DEMAG AG [DE]/[DE] (AllExceptUS)
  • FIGGE, Dieter [DE]/[DE] (UsOnly)
Inventors
  • FIGGE, Dieter
Agents
  • VALENTIN, Ekkehard
Priority Data
10 2004 051 020.220.10.2004DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN VORRICHTUNG UND SCHALTUNG ZUM ERMITTELN VON OBERFLÄCHENFEHLERN, WIE BSPW. RISSE, AUSBRÜCHE U.DGL. , AN EINER WALZE EINES WALZWERKS
(EN) METHOD, DEVICE AND CIRCUIT FOR DETECTING SURFACE DEFECTS SUCH AS CRACKS, FRACTURES AND THE LIKE ON A ROLLING MILL ROLLERS
(FR) PROCEDE, DISPOSITIF ET CIRCUIT POUR LA DETECTION DE DEFAUTS DE SURFACE, TELS QUE FISSURES, CREUX ET ANALOGUES, SUR UN CYLINDRE DE LAMINOIR
Abstract
(DE)
Ein Verfahren, eine Vorrichtung und eine Schaltung dienen zum Ermitteln von Oberflächenfehlern, wie bspw. Risse, Ausbrüche u. dgl., an einer Walze (2) eines Walzwerks (1), insbesondere an Arbeitswalzen (2a), die mit Stützwalzen (2b) in Ständerholmen (3) gelagert sind. Die Walzen (2) können auf Fehler in ihrer Betriebslage geprüft werden, indem erzeugte Ultraschall -Transversalwellen (4a) mit einer Frequenz von ca. 0,5 - 2 MHz an einem ersten Walzenende (2c) eingeleitet und am zweiten Walzenende (2d) empfangen werden und wobei während des Messvorgangs ein Ultraschallwellen-Übertrager (5) und ein Ultraschallwellen-Empfänger (6) für die Zeit der Prüfung fest auf die Walzenoberfläche (2e) angepresst werden.
(EN)
The invention relates to a method, device and a circuit for detecting surface defects such as cracks, fractures and the like on a roller (2) for a rolling mill (1), in particular on the working rollers (2a) which are mounted with support roller (2b) on a vertical stand (3). The rollers (2) are verified for detecting defects in the operation position thereof, transversal ultrasonic waves (4a) whose frequency is approximately equal to 0.5-2 MHz are transmitted to the first end of the roller (2c) and are received on the second end (2d) thereof and during a measuring process an ultrasound transducer (5) and an ultrasound receiver (6) are pressed against the cylinder (2e) surface for a test time.
(FR)
L'invention concerne un procédé, un dispositif et un circuit servant à détecter des défauts de surface, tels que fissures, creux et analogues, sur un cylindre (2) de laminoir (1), en particulier sur des cylindres de travail (2a) qui sont montés, avec des cylindres d'appui (2b) sur des montants (3). L'invention est caractérisée en ce que les cylindres (2) sont contrôlés, pour la détection des défauts, en leur position de fonctionnement, en ce que des ondes ultrasonores transversales (4a) d'une fréquence d'environ 0,5 2 MHz sont envoyées sur une première extrémité du cylindre (2c) et sont reçues sur une seconde extrémité du cylindre (2d), et en ce que, pendant le processus de mesure, un translateur d'ondes ultrasonores (5) et un récepteur d'ondes ultrasonores (6) sont appliqués avec pression, fermement sur la surface du cylindre (2e), pendant la durée de l'essai.
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