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    • 10. 发明申请
    • CO-EXTRUSION DIE WITH RECTANGULAR FEED CHANNEL
    • 具有矩形进料通道的CO挤出机
    • US20170036386A1
    • 2017-02-09
    • US15269860
    • 2015-04-02
    • Macro Technology Ltd.
    • Miroslav PlanetaHarinder TamberHassan Eslami
    • B29C47/26B29C47/06B29C47/28B29C47/00
    • B29C48/30B29C48/10B29C48/21B29C48/3363B29C48/34B29L2009/00B29L2023/001
    • A body member for an extrusion die for multilayer film has a passage-forming surface and an open feed channel formed in the passage-forming surface. The feed channel continuously decreases in depth from the feed channel inlet, and the feed channel is of substantially constant-width substantially rectangular cross-section along substantially its entire extent. Corners of the feed channel may be slightly rounded. Substantially constant-width feed channels of substantially rectangular cross-section may be used in blown film applications, in which case the feed channel extends in a spiral from the feed channel inlet, and in cast film applications, in which case the feed channel extends substantially linearly from the feed channel inlet. Dies can be assembled by arranging two body members with their respective passage-forming surfaces opposed to one another.
    • 用于多层膜的挤出模头的主体部件具有通道形成表面和形成在通道形成表面中的开放进料通道。 进料通道从进料通道入口连续地深度减小,并且进料通道基本上在整个范围内具有基本恒定的基本上矩形的横截面。 进料通道的角部可能稍微变圆。 基本上矩形横截面的基本上恒定的馈送通道可用于吹塑薄膜应用中,在这种情况下,进料通道以螺旋形式从进料通道入口延伸,并且在流延薄膜应用中,在这种情况下进料通道基本上延伸 从进料通道入口线性。 可以通过将两个主体构件与它们各自的相对的通道形成表面布置而组装模具。