[Updated on Apr. 18] Integration of CiNii Articles into CiNii Research

半導体レーザー加熱支援による射出成形樹脂の流動性向上

IR

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  • ハンドウタイ レーザー カネツ シエン ニ ヨル シャシュツ セイケイ ジュシ ノ リュウドウ セイコウ ジョウ
  • Improvement of Fluidity of Plastic Material in Injection Molding Assisted by Diode Laser

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Abstract

The excessive cooling in the filling stage of injection molding stops flow of polymer melt and gives insufficient filling of material in to the mold. In order to enhance the fluidity of the material,it is desirable to prevent the decrease in the temperature of molten polymer. One solution is radiative heating of molten polymer by lasers passing through the mold wall. The authors adopted ad iode laser,which allows comprehensively inexpensive equipments of light source. In this study,an experimental test of molding of disk with laser irradiation was performed and a numerical simulation for analyzing the temperature profiles within the flow of polymer melt was also investigated. The results show that the fluidity of polymer melt by laser heating is improved and it is especially effective at high injection rate.

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