書誌事項
- タイトル別名
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- Study on In-mold Punching during PPS/GF Injection Molding
抄録
The influence of the punching condition on strength and the amount of shear droop was investigated to optimize the processing condition for punching in the mold during glass fiber reinforced polyphenylenesulfide (PPS/GF) injection molding. For in-mold punching part during cooling process, the tensile strength was constant because the pressure loss by the punch did not occur. The amount of the shear droop decreased in line with the increase in delay time because the rigidity of injection molded part in the mold increased when the resin was cooled. Moreover, when the resin temperature lowered more than the glass transition temperature, the amount of the shear droop was constant because the rigidity became constant. It is necessary to begin punching when the resin temperature lowers more than the glass transition temperature after holding pressure process is completed, to secure high strength and to assume 0.05 mm or less, at which level the shear droop cannot be visually recognized. The shortest delay time for PPS/GF is 8 sec. The delay time to minimize the amount of the shear droop can be guessed by analyzing the temperature change of the resin in the mold by injection molding CAE.
収録刊行物
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- 成形加工
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成形加工 19 (8), 505-511, 2007-08-20
一般社団法人 プラスチック成形加工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204462173184
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- NII論文ID
- 130004515905
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- COI
- 1:CAS:528:DC%2BD2sXht1Kgt7zL
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- ISSN
- 18837417
- 09154027
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可