Method utilizing ultrasonically induced cavitation to impregnate

Details Method utilizing ultrasonically induced cavitation to impregnate Method utilizing ultrasonically induced cavitation to impregnate

1984-04-09

1985-11-12

Pianalto, Bernard D.

Coating processes

Electrical product produced

Welding electrode

427373, 4273855, 427386, 427392, 427395, B05D 312

Patent

active

045527814

ABSTRACT:
A method of impregnating a flexible, porous cellulosic sheet material involves passing the sheet through a low viscosity resin and across the resonant vibrating surface and through a cavitated zone in close proximity to at least one completely immersed ultrasonic wave generator, operating at a frequency and radiated power level effective to provide a combination vibratory pressure on the resin and cavitation effect causing degassing and heating of the resin, followed by passing the impregnated sheet through a drying means.

REFERENCES:
patent: 4302485 (1981-11-01), Last et al.

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