本論文研製之超音波輔助射出成型(UIM),使用超音波所產生的振動直接安裝在射出成型機模壁上。一般的UIM都是將超音波裝置在模具上,這使得在應用上非常不便,所以改良安裝於模壁。 由於塑膠材料的諸多特性,選用材料:聚丙烯(PP)、丁二烯-丙烯腈-苯乙烯共聚物(ABS)與聚丁烯對苯二甲酸酯樹脂(PBT),探討UIM對這幾種不同類型的材料的效果。 用實驗設計法對降伏強度、伸長率、彎曲強度、彎曲模數與衝擊強度做分析,並將參數因子:料管溫度、射出壓力、射出速度、射出時間、保壓壓力、保壓速度與保壓時間進行實驗。找出UIM對不同材料與不同參數的影響。 超音波對於不同塑膠材質的機械性能有著不同的影響,並非都是正面的效果。在其表面的影響,任何一種材料在經過超音波輔助之下,都有著表面細緻化的效果產生。相當部分的標準差都有降低的現象,這讓大量生產的品質更加可靠穩定。
The procedure called Ultrasonic Injection Molding (UIM) in this thesis is to use Configure ultrasonic on injection machine platen for producing vibration. Configure ultrasonic is generally set on molding, but it was very inconvenient; therefore, it was bettered by setting configure ultrasonic on injection machine platen. Due to the characteristics of plastic materials, here I choose Polypropylene (PP), Acrylonitrile Butadiene Styrene (ABS) and Polybutylene Terephthalate (PBT) to ensure the effects of UIM on different types of materials. To investigate the effects of UIM on different materials and different parameter, experimental research method was used to analyze many parameters, including screw temperature, inject pressure, inject speed, inject time, hold pressure, hold speed, and hold time.