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Aviation History
1959
1959 - 1773.PDF
FLIGHT 14 AUGUST 1959 ULTRASONIC Ultrasonic vibrations, added to conventional metal-cleaning procedures, result in faster and more thorough cleaning. When the equipment is properly applied, the savings in labour costs, reduction of rejects and improvement in quality will rapidly justify the cost of the equipment. Eminently suitable for cleaning: Ball-bearings—hypodermic needles—com- plex castings—motor stators, rotors and housings—watch and instrument parts— parts contaminated with radioactive soils— printed circuits—glassware—jewellery items —electrical connectors. 1. Type 1161/B36 Bulkhead Transducer; immer-sible; dimensions 7£" x 5f" x 2J" high. 2. Type 1160/T52 Tank and Transducer Assembly; workinq-capacity 1y gallons; dimensions of cleaning chamber 8" x 65" x 10" deep. 3. Type 1150 500-watt Soniclean Generator. The effects of ultrasonic cleaning have been observed over a wide range of frequencies. Sufficient intensity to produce cavitation on the surface of the part to be cleaned is required. The frequency of approximately •40 kc/s was selected since it provides efficient cleaning at low power levels, without objectionable sonic and cavitation noises. Small changes in frequency have no measurable effect on the cleaning action. High fre- quencies require much higher intensities, and will not be transmitted efficiently through a thick solid layer. For full technical data of this and other models ranging from 250W to 4kW telephone or write: DAWE Ultrasonic ^ CLEANING EQUIPMENT SERIES 1150 DAWE INSTRUMENTS LTD. 99-101 UXBRIDGE ROAD, EALING, W.5 : EALING 6215
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