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公开(公告)号:EP0623447A1
公开(公告)日:1994-11-09
申请号:EP94302969.4
申请日:1994-04-25
CPC分类号: B29C47/745 , B29C47/0009 , B29C47/40 , B29C47/6093
摘要: In backseal extruders containing multiple bores wherein passage of material between the bores is allowed by a longitudinal interconnecting opening (28) and the screws (7) in the bores have flow restricting means (18) delimiting higher (12) and lower (26) pressure sections, the pressure difference between these sections can be increased by restricting the width of the nip (36) between the bores, which defines the longitudinal opening, to no more than 0.38 of the bore diameter.
摘要翻译: 在包含多个孔的后密封挤出机中,其中孔之间的材料通过纵向互连开口(28)允许,并且孔中的螺钉(7)具有流动限制装置(18),其限定较高(12)和较低(26)压力 通过将限定纵向开口的孔之间的辊隙(36)的宽度限制在不大于孔直径的0.38,可以增加这些部分之间的压力差。