METHOD FOR EXTRUDING AN EXPANDED POLYMER SHEET
    9.
    发明公开
    METHOD FOR EXTRUDING AN EXPANDED POLYMER SHEET 审中-公开
    挤出膨胀聚合物片材的方法

    公开(公告)号:EP3230038A1

    公开(公告)日:2017-10-18

    申请号:EP15804732.4

    申请日:2015-12-01

    申请人: Proxital S.p.A.

    发明人: RONZINI, Emanuele

    IPC分类号: B29C47/08 B29C47/20

    摘要: A method for extruding a sheet (1) made of expanded polymer, or cellular polymer such as an expanded polyolefin typically made of polyethylene or polypropylene, by means of an extrusion head (2) composed of a female die (3) and a male die (4) that define a duct for the extrusion of the polymer, the female die (3) or the male die (4) having a plurality of holes (5) that accommodate a plurality of needles (6) that are axially perforated and can be arranged at the duct for the extrusion of the polymer and exit therefrom, the plurality of needles (6) being affected by a fluid (7) that expands during the extrusion of the polymer so as to allow to obtain a tube (8) which, cut longitudinally, defines a sheet (1) provided with distinct axial seats (9)

    摘要翻译: 一种挤出由膨胀聚合物制成的片材(1)或多孔聚合物(例如通常由聚乙烯或聚丙烯制成的膨胀聚烯烃)的方法,借助于由阴模(3)和阳模(3)构成的挤出头(2) (4),其限定用于聚合物挤出的管道,所述阴模具(3)或所述阳模具(4)具有多个容纳多个轴向穿孔的针(6)的孔(5),并且可以 布置在用于挤出聚合物并从其排出的导管处,多个针(6)受到在挤出聚合物期间膨胀的流体(7)的影响,以允许获得管(8),该管 ,纵向切割,限定具有不同轴向座(9)的片材(1)