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1.
公开(公告)号:US4894198A
公开(公告)日:1990-01-16
申请号:US129025
申请日:1987-12-04
申请人: Peter Albrecht , Karl-Heinz Balkau , Vinco Cujic , Tilman Doring , Claus Horwege , Wolfgang Reymann , Klaus Vogel , Walter Wiedenfeld
发明人: Peter Albrecht , Karl-Heinz Balkau , Vinco Cujic , Tilman Doring , Claus Horwege , Wolfgang Reymann , Klaus Vogel , Walter Wiedenfeld
CPC分类号: B29C31/002 , B29C49/64 , B29C55/24 , B29C57/00 , B29K2995/005 , B29L2031/712 , B29L2031/7132
摘要: In a process for producing hollow bodies of oriented thermoplastic material, a hollow blank having a bottom portion and a substantially cylindrical wall portion with an opening at its end remote from its bottom portion is subjected to pre-expansion in the region of the opening and then thermofixing in a subsequent treatment step. The thermofixing operation may be preceded by a mechanical expansion operation for orienting the plastic material forming the wall portion of the blank.
摘要翻译: 在制造定向热塑性材料的中空体的方法中,具有底部和基本圆柱形壁部分的中空坯料在远离其底部的端部处具有开口,在开口区域中进行预膨胀,然后 在随后的处理步骤中进行热固化。 之前可以通过机械膨胀操作来对形成坯料的壁部分的塑料材料进行取向。