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Numerical simulation and experimental study on die swell of T-shaped plastic profile extrusion from a gas-assisted die
Author(s): 
Pages: 158-161
Year: Issue:  1
Journal: JOURNAL OF PLASTICITY ENGINEERING

Keyword:  气体辅助挤出挤出成型塑料异型材数值模拟;
Abstract: 文章建立了描述塑料异型材气辅挤出成型过程的理论模型,对T型异型材气辅口模挤出成型过程进行了三维等温数值模拟和实验研究.研究表明,相对于传统挤出成型而言,气辅挤出不仅有效减小挤出胀大,而且能精确控异型材的形状及尺寸,有利于实现高速高效高质量的异型材挤出成型.此外,还研究了工艺及物性参数对异型材挤出胀大的影响,揭示了其影响机理及规律.
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