| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for stably applying ultrasonic vibration to an object at a low load to improve the physical properties of the obtained formed article and the dispersibility of a filler. SOLUTION: Ultrasonic vibration is applied to a molten resin material by an ultrasonic vibration applicator 30 attached to a forming machine 10. The load on an ultrasonic oscillator is lowered and the void content in the formed article is decreased by controlling the pressure P and the melt viscosityηof the resin material at the application of ultrasonic vibration. COPYRIGHT: (C)2007,JPO&INPIT
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