Vacuum sound insulation material to be put to practical use 2022/4/26
Powerful ultrasonic waves for deburring generate numerous spherical nebula cavities (microvacuum nuclei) with a diameter of up to 10 mmΦ. At this time, a banging sound like a kind of thunder discharge is emitted. To block this sound inside the equipment and prevent it from leaking into the working environment, we have been producing our own vacuum sound insulation material for 30 years. However, it was too heavy and costly to be put into practical use.
This year, we began looking into the possibility of using discarded pieces of wood to make a vacuum sound insulation material. It would be lightweight, easy to assemble, and use thinned wood. Wood, when dry, does not transmit ultrasonic waves very well. From these ideas, Blue Star R&D succeeded in commercializing an ultralight vacuum sound insulation material. We installed it in an ultrasonic deburring device in our laboratory and found it to be more effective than expected.
The vacuum sound insulation material will be installed on a machine to be exhibited at the Monodzukuri World (Machine Element Technology Exhibition) to be held at Tokyo Big Sight in June 2022.
Blue Star R&D will also focus on the development of peripheral technologies for ultrasonic deburring and cleaning equipment.