首页> 外国专利> METHOD FOR INFLUENCING THE ORIENTATION OF FILLERS IN A PLASTICS MELT DURING PRODUCTION OF A MOULDING IN AN INJECTION-MOULDING PROCESS

METHOD FOR INFLUENCING THE ORIENTATION OF FILLERS IN A PLASTICS MELT DURING PRODUCTION OF A MOULDING IN AN INJECTION-MOULDING PROCESS

机译:在注射成型过程中影响模具熔体在塑料熔体中取向的方法

摘要

The present invention relates to a method for influencing an orientation of fillers (122) in a plastics melt (112) during production of a moulding in an injection-moulding process. The method comprises the following steps: a) providing a mould (116), which has at least one cavity (114) for receiving a plastics melt (112); b) introducing the plastics melt (112) into the cavity (114) under pressure; c) applying a pressure to the plastics melt (112) in the cavity (114); d) cooling the plastics melt (112) or allowing the plastics melt (112) to cool in the cavity (114) at least partially while maintaining the pressure, whereby the moulding is formed; and e) demoulding the moulding from the cavity (114); according to the invention, during step b) and/or during step c) at least one opening stroke (132) is performed in the form of opening at least a partial region of the cavity (114) in such a way that laminar and/or stretching flows are induced in at least part of the plastics melt (112) that is present in the cavity (114), with the effect of influencing the orientation of the fillers (122) in the plastics melt (112), and the opening stroke (132) is followed by a pressure being applied to the plastics melt (112) as provided in step c).
机译:本发明涉及一种在注射成型过程中在模制品的生产过程中影响塑料熔体(112)中的填料(122)的取向的方法。该方法包括以下步骤:a)提供模具(116),其具有至少一个用于容纳塑料熔体(112)的腔(114); b)在压力下将塑料熔体(112)引入空腔(114)中; c)对腔体(114)中的塑料熔体(112)施加压力; d)在保持压力的同时冷却塑料熔体(112)或使塑料熔体(112)在腔体(114)中至少部分冷却,从而形成模制件; e)从模腔(114)脱模成型的模子;根据本发明,在步骤b)和/或步骤c)中,至少一个打开行程(132)以打开腔室(114)的至少一部分区域的形式进行,使得层流和/或在存在于腔体(114)中的塑料熔体(112)的至少一部分中引起拉伸或拉伸流动,从而影响塑料熔体(112)中的填充物(122)和开口的取向如步骤c)中所提供的,在冲程(132)之后施加压力到塑料熔体(112)上。

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