Thermal Effects on Ultrasonic Joining of Thin Plastic Films Using Torsional Vibrations

スポンサーリンク

概要

• 論文の詳細を見る

• Heat generation caused by high-amplitude ultrasonic vibrations at the interface has long been believed to be the most dominant factor for the mechanism of ultrasonic plastic joining. However, the authors have not found any conspicuous thermal effects in experiments of ultrasonic joining of thin very low density polyethylene (VLDPE) films using torsional vibrations. In the process of joining, the temperature at the interface of two VLDPE films of 0.1 mm thickness has increased up to 73 °C only and no trace of melting of the material has been observed at this interface under a polarizing microscope. Investigation using a differential scanning calorimeter (DSC) has revealed that the "melting point" of VLDPE is about 110 °C, and an ultrasonically joined specimen, unlike a heat-sealed specimen, shows no significant difference in thermal characteristics compared with an intact VLDPE film. The VLDPE films cannot be been joined, even after being pressed together for a period of 30 min or longer at a temperature approximately 80 °C.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-08-25

著者

• Takahashi Tsuyoshi

  Faculty Of Agriculture Iwate University

• Takahashi Tsuyoshi

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Adachi Kazunari

  Venture Business Laboratory, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Kamehashi Kenichi

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Watanabe Kazumi

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Uchiyama Kenta

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Kuriyama Takashi

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Miyata Ken

  Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan

• Hisamastu Tokuro

  Yamagata Research Institute of Technology, 2-2-1 Matsuei, Yamagata 990-2473, Japan

関連論文

• Increase of ruminal fiber digestion by cellobiose and a twin strain of Saccharomyces cerevisiae live cells in vitro
• Design and Synthesis of Peptides Containing Nucleobase Amino Acids and their Interaction with RNA
• Seasonal Variation of Paulownia Witches'-Broom Phytoplasma in Paulownia Trees and Distribution of the Disease in the Tohoku District of Japan
• Turbulence Structure in the Intermediate Wake of a Rotating Flat Plate : Phase-averageed Structure of Coherent and Random Components : Series B : Fluid Engineering, Heat Transfer, Combustion, Power, Thermophysical Properties
• Turbulence Structure in the Intermediate Wake of a Rotating Flat Plate (Large-Scale Vortices) : Series B : Fluids Engineering, Heat Transfer, Combustion, Power, Thermophysical Properties
• Thermal Effects on Ultrasonic Joining of Thin Plastic Films Using Torsional Vibrations
• Experimental Investigation on Thermal Effects in Ultrasonic Joining of Thin Poly(ethylene terephthalate) Films Using Torsional Vibrations

スポンサーリンク