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TitleEffect of melt viscosity on the ejection force in injection moulds
Author(s)Pontes, A. J.
Brito, A. M.
Pouzada, A. S.
KeywordsInjection moulding
Injection moulds
Ejection force
Issue date2004
PublisherTrans Tech Publications
JournalMaterials Science Forum
Abstract(s)This paper shows data on the ejection force of injection mouldings. The tubular mouldings are pin gated. Two polypropylenes with different melt viscosities (melt flow indices) were investigated. Experimental focus is put on the effect of the holding pressure, mould temperature and the cooling time on the measured ejection force. Pressure and temperature were continuously monitored with transducers during the filling process. The ejection force was directly measured with load cells. The results show that higher viscosity lends to higher ejection force.
TypeConference paper
AccessOpen access
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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