In-mold Measurement of Melt Velocity Vector by Optical Fiber Sensor

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  • 光ファイバセンサによる金型内流動樹脂先端部の速度ベクトル計測
  • ヒカリ ファイバ センサ ニ ヨル カナガタナイ リュウドウ ジュシ センタンブ ノ ソクド ベクトル ケイソク

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Abstract

For precise injection molding, it is quite effective to monitor molding phenomena inside a cavity per each shot; such as pressure profiles, melt temperature profiles, etc. We proposed a new sensor for measuring the flow front velocity vector, which has three optical fibers inserted into the pin edge. Experiment results indicate that the new sensor can successfully be used as a practical tool for measuring the flow front speed velocity vector. In addition, it was also confirmed that even a single optical sensor can precisely detect the melt front velocity focusing on the change of output profile.

Journal

  • SEISAN KENKYU

    SEISAN KENKYU 59 (6), 532-535, 2007

    Institute of Industrial Science The University of Tokyo

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