赤外ふく射支援による精密射出成形法に関する研究 : 第1報,炭酸ガスレーザ照射を利用した新射出成形法による樹脂成形品の高品位化

概要

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This paper deals with an innovative injection molding process whose concept has been developed from the heat transfer point of view. The process enables improvement of the optical quality and promotes the molten flow of injection-molded polymer products by applying infrared radiation on the moving polymer melt being injected into the mold cavity. The effects of CO_2 laser heating on the skin layer of the molded polymer were observed using a mold with transparent windows. The residual birefringence frozen in the irradiated specimen was measured, and the surface transcription of the irradiated polymer strip was investigated. The results showed that the birefringence in the skin layer of the injection-molded polymer strip was reduced, and the surface transcription of the molded polymer strip was improved by CO_2 laser heating. Another advantage is that the processing time is only slightly increased by applying this method.
一般社団法人日本機械学会の論文
1996-07-25