PRODUCTION METHOD OF PLASTIC PIPE IN LAYERS
    6.
    发明申请
    PRODUCTION METHOD OF PLASTIC PIPE IN LAYERS 有权
    层中塑料管的生产方法

    公开(公告)号:US20140151937A1

    公开(公告)日:2014-06-05

    申请号:US13693966

    申请日:2012-12-04

    发明人: Aarne Heino

    IPC分类号: B29C47/06

    摘要: The object of the invention is a method to produce plastic pipe where a pipe of two or more layers is extruded and where at least one layer has additive that by heat treatment releases free radicals. Immediately after the extrusion, the pipe is heat treated by leading it either through a hot salt bath or an infra-red radiation so that the mentioned additive decomposes. Now, the layer(s) having additive get cross-linked and additionally the crosslinked layer(s) fix with chemical bonds to at least one other layer.With this method it is possible to produce a plastic pipe where there is no need to use a separate adhesion plastic layer to fix to each other layers that reject each other.

    摘要翻译: 本发明的目的是一种生产塑料管的方法,其中挤出两层或更多层的管,并且其中至少一层具有通过热处理释放自由基的添加剂。 挤出后立即将管道通过热盐浴或红外线辐射进行热处理,以使所述添加剂分解。 现在,具有添加剂的层交联并且另外交联层通过化学键固定到至少一个其它层。 通过该方法,可以制造塑料管,其中不需要使用单独的粘合塑料层来固定彼此排斥的彼此的层。