发明名称 |
Thread forming and neck finishing process |
摘要 |
The invention is a process for biaxially blow molding hollow plastic articles to provide a finished neck of axially oriented material in the molding step. One end of a plastic parison is placed over a blow pin positioned between separable mold halves. The parison is then axially oriented and necked down over said blow pin. A crammer sleeve is positioned over the blow pin to cram axially oriented material into the neck finishing cavities when the molds are closed over said blow pin and parison.
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申请公布号 |
US4065535(A) |
申请公布日期 |
1977.12.27 |
申请号 |
US19760754203 |
申请日期 |
1976.12.27 |
申请人 |
HERCULES INCORPORATED |
发明人 |
LEGRAND, RICHARD WEBSTER |
分类号 |
B29C49/00;B29C49/08;B29C49/10;B29C49/28;B29C49/42;B29C49/48;B29C49/68;B29C49/70;B29C49/76;B29C65/00;(IPC1-7):B29C17/07 |
主分类号 |
B29C49/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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