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Acoustic emission monitors aeroplane fatigue tests
dn terna tional Acoustic emission monitors aeroplane fatigue tests A long term acoustic emission test on an aeroplane undergoing flight simulation fatigue tests has been undertaken by Cise of Milan, Italy. The instrumentation required for the monitoring consists of a multichannel system based on piezoelectric sensors together with emission locating software. The monitored structure is the pressure bulkhead of the ATR 42 aircraft which is undergoing fatigue tests in the Aeritalia research and experiment centre. The data collected during the course of the programme will help to determine the most suitable technique to be used for a flight monitoring procedure aimed at optimizing aircraft maintenance schedules. CISE Spa, Segrate Milano, Via Reggio Emilia 39, Casella postale 1208 1, l-20 134 Milano, Italy
Internal shape alloy Internal shape checking to high orders of accuracy is possible with a low-melting point bismuth-based alloy, says its maker, Mining and Chemical Products. The alloy has a melting point of 137°C and remains dimensionally stable on solidification. Experiments with inspection of screwed extensions for rock drills showed that the material produced internal replicas with fine reproduction of detail, Mining and Chemical says. Mining and Chemical Products Ltd Alperton, Wembley, Middlesex HA0 4PE, UK
Bonar Robinson
bought
out
Bonar Robinson Ltd. the Cheshirebased manufacturer of high voltage test equipment, has been bought out by its management. Previously owned by Low and Bonar, the company will now operate as Robinson Instruments.
news
Steelworks
installs two more ultrasonic
units
Two further Modus modular ultrasonic inspection systems from Sonomatic Ltd of Warrington are being used to provide 100% examination for internal defects of steel billets produced at the Brymbo Steel Works, near Wrexham, UK. Following the installation of a Sonomatic Modus system in 1986, Brymbo engineers decided both to increase their capacity for inspection square billets and to enhance the capability of their new f 1 m automated billet inspection line. Consequently, they have replaced an out-moded billet inspection system with an adapted Modus which provides continuous monitoring of square billets to detect internal defects such as cracks, porosity and slag inclusions and to identify any defects by means of a paint marking system. In addition, the Modus system in the existing automated inspection line has now been enhanced and uprated to handle round as well as square billets. This has necessitated the location of a second rounds-dedicated probe array adjacent to the existing billet inspection head in an elongated inner immersion tank assembly. There is also a motorized facility to move the inspection head in a vertical direction to position the probes radially from the centre line for each diameter of round. With this configuration, the time taken to change over from billet to round inspection and vice versa is minimized and can be undertaken by conventionally skilled operators. In both installations
billets are
Rail quality controlled
Modus systems at the Brymbo steelworks
passed at up to 0.5 m s-l through a fixed array of ultrasonic transducers, operating in a pulseecho mode, immersed in a water bath to provide complete volumetric inspection. Results are presented on an integral plasma display panel showing the relevant inspection channel if defects above a pre-set level are detected. Simultaneously an audible alarm is sounded and paint is sprayed on the billet surface indicating the area of defect. If required, the Modus system can be further enhanced to provide an immediate print-out of results, together with on-line storage of digital data for off-line analysis. Sonomatic Ltd 20 Rivington Court, Hardwick Grange, Woolston, Warrington WRl 4RT UK
by eddy currents
Finance has come from a variety of sources including MIM Development Capital Ltd.
An eddy current machine which performs continuous rail surface quality control as the rails come off the rolling mill has been installed by CGA-HBS at the plant of MMRA in Luxembourg. Each rail processed is recorded and given a quality acceptance report.
by the British Royal Navy from CGA-HBS of France. Four of the units are to be remote controlled, the other six having manual control. The systems will replace those currently used to examine Royal Navy vessels.
Robinson Instruments, Demmings Industrial Estate, Cheadle, Cheshire SK8 2PW. UK
0 Ten electronic remotecontrolled gamma-ray testing equipment units have been ordered
CGA-HBS Controle lndustriel. 3 rue de Tunis, 93203 Saint Denis, France
304
NDT International
October 1987
Internal shape alloy Internal shape checking to high orders of accuracy is possible with a low-melting point bismuth-based alloy, says its maker, Mining and Chemical Products. The alloy has a melting point of 137°C and remains dimensionally stable on solidification. Experiments with inspection of screwed extensions for rock drills showed that the material produced internal replicas with fine reproduction of detail, Mining and Chemical says. Mining and Chemical Products Ltd Alperton, Wembley, Middlesex HA0 4PE, UK
Bonar Robinson
bought
out
Bonar Robinson Ltd. the Cheshirebased manufacturer of high voltage test equipment, has been bought out by its management. Previously owned by Low and Bonar, the company will now operate as Robinson Instruments.
news
Steelworks
installs two more ultrasonic
units
Two further Modus modular ultrasonic inspection systems from Sonomatic Ltd of Warrington are being used to provide 100% examination for internal defects of steel billets produced at the Brymbo Steel Works, near Wrexham, UK. Following the installation of a Sonomatic Modus system in 1986, Brymbo engineers decided both to increase their capacity for inspection square billets and to enhance the capability of their new f 1 m automated billet inspection line. Consequently, they have replaced an out-moded billet inspection system with an adapted Modus which provides continuous monitoring of square billets to detect internal defects such as cracks, porosity and slag inclusions and to identify any defects by means of a paint marking system. In addition, the Modus system in the existing automated inspection line has now been enhanced and uprated to handle round as well as square billets. This has necessitated the location of a second rounds-dedicated probe array adjacent to the existing billet inspection head in an elongated inner immersion tank assembly. There is also a motorized facility to move the inspection head in a vertical direction to position the probes radially from the centre line for each diameter of round. With this configuration, the time taken to change over from billet to round inspection and vice versa is minimized and can be undertaken by conventionally skilled operators. In both installations
billets are
Rail quality controlled
Modus systems at the Brymbo steelworks
passed at up to 0.5 m s-l through a fixed array of ultrasonic transducers, operating in a pulseecho mode, immersed in a water bath to provide complete volumetric inspection. Results are presented on an integral plasma display panel showing the relevant inspection channel if defects above a pre-set level are detected. Simultaneously an audible alarm is sounded and paint is sprayed on the billet surface indicating the area of defect. If required, the Modus system can be further enhanced to provide an immediate print-out of results, together with on-line storage of digital data for off-line analysis. Sonomatic Ltd 20 Rivington Court, Hardwick Grange, Woolston, Warrington WRl 4RT UK
by eddy currents
Finance has come from a variety of sources including MIM Development Capital Ltd.
An eddy current machine which performs continuous rail surface quality control as the rails come off the rolling mill has been installed by CGA-HBS at the plant of MMRA in Luxembourg. Each rail processed is recorded and given a quality acceptance report.
by the British Royal Navy from CGA-HBS of France. Four of the units are to be remote controlled, the other six having manual control. The systems will replace those currently used to examine Royal Navy vessels.
Robinson Instruments, Demmings Industrial Estate, Cheadle, Cheshire SK8 2PW. UK
0 Ten electronic remotecontrolled gamma-ray testing equipment units have been ordered
CGA-HBS Controle lndustriel. 3 rue de Tunis, 93203 Saint Denis, France
304
NDT International
October 1987