公开(公告)号：US5354190A

公开(公告)日：1994-10-11

申请号：US8589

申请日：1993-01-25

申请人： Werner R. Hofer ,  Franz Mahler ,  Manfred Goellner ,  Andreas Gumpert

发明人： Werner R. Hofer ,  Franz Mahler ,  Manfred Goellner ,  Andreas Gumpert

IPC分类号： B29C47/88 ,  B29D23/22

CPC分类号： B29C47/883 ,  B29C47/0026 ,  B29C47/8835 ,  B29K2023/065

摘要： In order to make the thickness and strength values uniform in an extruded foil tubing made of high density polyethylene (HDPE), in the form of a long neck, an air nozzle ring is provided at the level of the end of the long neck in addition to an outer blow ring surrounding the ring nozzle of the blow head. The rate of air flow through the nozzles of the air nozzle ring is controlled dependent on a rotating measuring device for measuring the thickness of the foil which is located above the expansion portion of the foil tubing. The cooling effect of the outer blow ring is preferably twenty times greater than that of the air nozzle ring. To stabilize the foil bubble, an inner pin is provided at the level of the end of the long neck.

摘要翻译： 为了使厚度和强度值在由长颈部形式的高密度聚乙烯（HDPE）制成的挤出箔管中均匀，在长颈部的端部的水平处还设置有空气喷嘴环 到围绕吹头的环形喷嘴的外吹环。 根据用于测量位于箔管的膨胀部分上方的箔的厚度的旋转测量装置来控制通过空气喷嘴环的喷嘴的空气流量。 外吹环的冷却效果优选为空气喷嘴环的冷却效果的20倍。 为了稳定箔泡沫，在长颈部的端部的水平处设置有内销。