发明名称 |
VERFAHREN UND VORRICHTUNG ZUM BLASFORMEN |
摘要 |
<p>In a method of blow moulding, a parison is extruded by pushing a hollow tube of hot thermoplastic material through a die gap 2 between a mandrel 3 and die 1. An exit compression ring 5 is formed on the mandrel 3 adjacent to the die exit 2. The ring acts as a flow enhancer to ensure free flow of the thermoplastic material. Outer surfaces of the die 1 and mandrel 3 may be provided with release strips 9, 10 to prevent the parison becoming stuck to the die face. <IMAGE></p> |
申请公布号 |
AT246988(T) |
申请公布日期 |
2003.08.15 |
申请号 |
AT19970650046T |
申请日期 |
1997.10.24 |
申请人 |
MENZA LIMITED |
发明人 |
FLOOD, NICOLAS;BERINE, PATRICK |
分类号 |
B29C47/20;B29C49/04;(IPC1-7):B29C49/04;B29C47/22;B29C47/86 |
主分类号 |
B29C47/20 |
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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