发明名称 Apparatus for reduction of mold cycle time
摘要 An apparatus is disclosed for the reduction of mold cycle time. A heat recoverable member in a compressed state is placed within a channel defined relative to the surface of a mold. A hardenable liquid used to form the article then flows in an accelerated manner through the channel. Thermal energy supplied to the heat recoverable material thereafter causes the heat recoverable material to expand within the channel, thereby displacing the hardenable liquid from the channel. The temperature of gelation of the hardenable liquid and the recovery temperature of the heat recoverable material may be selected such that the channels are substantially filled by the heat recoverable material prior to the hardening of the hardenable liquid. In this manner, the heat recoverable material becomes flush with the surface of the mold prior to hardening of the liquid so as to yield an article of manufacture having a relatively planar surface.
申请公布号 US4952135(A) 申请公布日期 1990.08.28
申请号 US19890366712 申请日期 1989.06.15
申请人 SHELL OIL COMPANY 发明人 DOUGLAS, PAUL I.
分类号 B29C33/00;B29C70/48;B29C70/54 主分类号 B29C33/00
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