J. F. I, N e w Multi-Crystal Ultrasonic Generator.--A new high-powered multi-crystal ultrasonic generator which will make possible the construction of larger and more flexible industrial cleaning equipment has been announced by the Specialty Control Department of the General Electric Company.
The concept of cleaning with highfrequency sound waves has found wide application in industry during the past few years through the use of self-contained, single-unit ultrasonic generators. G. E.'s new generator is larger and more powerful, consisting of two separate units. According to G. E. engineers, this makes it possible to design ultrasonic cleaning tanks which can take larger parts, or which can be used for mass-production, continuousprocess cleaning of small parts.
The two units of the new multicrystal ultrasonic generator are the power oscillator, which is enclosed in a separate cabinet, and the transducer assembly which contains five quartz vibrating crystals and can be remotely located from the oscillator.
The transducers are hermetically sealed so they can be placed directly into a tank of solvent. This, with the flexibility achieved with remote location, allows the new G-E generator to be easily incorporated into a regular vapor-degreasing or hot-dip process.
The equipment is also designed so that four transducers may be used with a single power oscillating unit, bringing vastly increased power to a single cleaning installation.
High-powered ultrasonic generators can affect industrial cleaning processes in two major areas, according to G-E engineers. They can speed up normal cleaning operations by as much as 100 times, or they can make possible the effective cleaning of parts which are inaccessible to brushes or other cleaning methods.