发明名称 Method and device for producing a plastic component with an internal hollow space
摘要 For producing a plastic component (2) with an internal hollow space (3), at first plastic is injection molded into an injection mold (4) and its cavity (6) and then for displacing the plastic melt from the internal hollow space (3) to be formed, gas under pressure is injected into the still liquid plastic melt, after which for cooling the plastic, a cooling liquid is also introduced into this internal hollow space (3). So that this cooling can be performed as quickly as possibly, the gas is compressed with the help of the cooling liquid and inserted or injected into the plastic melt, so that the cooling liquid directly follows the gas, wherein it can already extend into the internal hollow space (3) before this space is completely formed by the gas, i.e., gas and cooling liquid can be present simultaneously in the internal hollow space (3) to be formed.
申请公布号 US2005046091(A1) 申请公布日期 2005.03.03
申请号 US20040922349 申请日期 2004.08.20
申请人 OP DE LAAK MARCEL 发明人 OP DE LAAK MARCEL
分类号 B29C45/17;(IPC1-7):B29D22/00;B29C71/00 主分类号 B29C45/17
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