公开(公告)号：US20070132137A1

公开(公告)日：2007-06-14

申请号：US10552430

申请日：2004-04-08

申请人： Peter Chapman ,  James Henwood ,  George Macovaz ,  Jyri Jarvenkyla

发明人： Peter Chapman ,  James Henwood ,  George Macovaz ,  Jyri Jarvenkyla

IPC分类号： B29C47/12

CPC分类号： B29C55/26 ,  B29C48/09 ,  B29C48/902 ,  B29C48/903 ,  B29C48/907 ,  B29C48/908 ,  B29C48/913 ,  B29C48/919 ,  B29C55/24 ,  B29L2023/22

摘要： A continuous process for producing oriented plastic tube is disclosed having the steps of extrusion (12) of a tube to an initial extruded diameter, temperature conditioning (18), diametrical expansion (20) and cooling (30), characterised by control of the circumferential draw ratio by the step of adjusting the diameter of the extruded tube to an adjusted diameter by means of a variable diameter calibrator (13) located between said extrusion and temperature conditioning steps. A process line for carrying out the invention is also disclosed. Further embodiments of the invention include adjustment of the extruded wall thickness and compensatory adjustment of the adjusted diameter so as to effect a change in final wall thickness with unchanged draw ratio, a process for changing final product diameter and a start-up procedure for the process.

摘要翻译： 公开了用于生产定向塑料管的连续方法，其具有将管的挤出（12）至初始挤出直径，温度调节（18），直径膨胀（20）和冷却（30）的步骤，其特征在于控制圆周 通过借助于位于所述挤出和温度调节步骤之间的可变直径校准器（13）将挤出管的直径调整到调整直径的步骤。 还公开了用于实施本发明的处理线。 本发明的另外的实施例包括调整挤压壁厚度和调节直径的补偿调节，以便实现最终壁厚度的变化，不变的拉伸比，用于改变最终产品直径的方法以及该方法的启动程序 。