发明名称 Method for the manufacture of a reinforced plastic product
摘要 A method for the manufacture of a plastic product, wherein a reinforcement package ( 2 ) is placed against a molding wall ( 1 ), an air extraction and a supply ( 5 ) for liquid plastic material ( 6 ) are installed, and the reinforcement package is covered by an air-tight covering ( 3 ), on which, non-detachably, channel parts ( 7 ) are fixed. The pressure in the reinforcement package is adjusted to a value d 1, lower than the ambient pressure, after which the pressure within the channel parts is adjusted to a value d 2, lower than d 1, so that runner channels are formed on the reinforcement package. After the liquid plastic material has soaked the reinforcement package to a sufficient extent, the pressure in the channel parts is adjusted to a value d 3, greater than d 1, so that the runner channels are pushed away. After curing of the plastic material, the air-tight covering-if desired reusable and premodeled-and the channel parts connected therewith are released.
申请公布号 US2007158874(A1) 申请公布日期 2007.07.12
申请号 US20040556532 申请日期 2004.05.14
申请人 NEDERLANDS ORGANISATIE VOOR TOEGEPASTNATUURWETENSCHAPPELIJK ONDERZOEK TNO 发明人 VAN HERPT EDWIN CORNELUS F.C.
分类号 B29C70/44;B29C70/54 主分类号 B29C70/44
代理机构 代理人
主权项
地址