Detection of delamination of rubber covers from metal...

G - Physics – 01 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01N 29/26 (2006.01) G01N 29/04 (2006.01) G01N 29/09 (2006.01)

Patent

CA 2373683

The bonding of an elastomeric cover (22) to a metal roll (20) is tested by transmitting audible frequency waves through the compliant roll cover and receiving the waves at a transducer (38) mounted to the underlying steel roll. The resulting signal may be analyzed by a technician listing to the audio frequencies transmitted. The audio range of frequencies employed may be about 5000 Hz. The elastomeric material such as rubber does not transmit sound without considerable loss of amplitude, whereas sound travels at high speed through steel with little attenuation. A sound transmitter (28) is spirally scanned along the rubber-covered surface of the roll, transmitting into the steel roll directly beneath the sound transmitter and throughout the roll. Sound is detected at a transducer (38) mounted at the roll ends. Any failure or significant variation in the roll/cover bond is detected by the effect on the quality of sound transmitted through the rubber steel interface.

On contrôle le collage d'un revêtement isomère (22) sur un rouleau de métal (20) en émettant des ondes de fréquence audibles au travers du revêtement souple sur le rouleau et en captant ces ondes au niveau d'un transducteur (38) monté sur le rouleau d'acier sous-jacent. Le signal qui en résulte peut être analysé par un technicien écoutant les fréquences radio. Les fréquences sonores utilisées peuvent être de l'ordre de 5000 Hz. L'onde sonore qui traverse un matériau isomère du type caoutchouc accuse une perte considérable d'amplitude alors que cette perte n'est que faible pour un son qui traverse l'acier à grande vitesse. En balayant en spirale la surface en caoutchouc du rouleau, un émetteur acoustique (28) transmet l'onde sonore directement dans le rouleau d'acier sous-jacent et au travers de celui-ci. Un transducteur (38) monté aux extrémités du rouleau détecte l'onde sonore. Toute défaillance ou variation signification de la liaison entre le rouleau et le revêtement infléchit la qualité du sont transmis au travers de l'interface caoutchouc.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Detection of delamination of rubber covers from metal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection of delamination of rubber covers from metal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of delamination of rubber covers from metal... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1863363

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.