发明名称 Displacement blow-molding
摘要 Apparatus and method for forming hollow articles from plasticized materials are disclosed. A preform is partially formed under substantially no pressure on a preform core by introducing the core into a void-free charge of plasticized material that is placed in a preform cavity from a source of the plasticized material. After the preform core and preform cavity have moved together to define a preform mold space, the charge of plasticized material is subjected to a pressure forming step to form a completely packed preform on the core. The preform is then blow-molded in a blow cavity by introducing blowing gas into the preform through the preform core. Neck mold structure that strips and releases the formed article from the core is also disclosed.
申请公布号 US4147748(A) 申请公布日期 1979.04.03
申请号 US19760708145 申请日期 1976.07.23
申请人 SAUMSIEGLE, ROBERT W. 发明人 SAUMSIEGLE, ROBERT W.
分类号 B29C49/00;B29B11/08;B29C43/36;B29C49/02;B29C49/06;B29C49/28;B29C49/42;B29C49/70;B29C65/00;B29L22/00;(IPC1-7):B29C17/07 主分类号 B29C49/00
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