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公开(公告)号：EP2043838B1
公开(公告)日：2015-10-21
申请号：EP07763952.4
申请日：2007-07-19
申请人： QUADRANT EPP AG
CPC分类号： B29C47/86 , B29C47/0004 , B29C47/0019 , B29C47/003 , B29C47/0033 , B29C47/14 , B29C47/54 , B29C47/827 , B29C47/862 , B29C47/864 , B29C47/866 , B29C47/92 , B29C2947/92152 , B29C2947/92209 , B29C2947/92409 , B29C2947/92447 , B29C2947/92647 , B29C2947/92704 , B29C2947/92895 , B29C2947/92904 , B29C2947/92942 , B29K2023/0683 , B29K2105/06 , B29K2105/16 , B29K2105/256
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公开(公告)号：EP2043836B1
公开(公告)日：2010-06-09
申请号：EP07763951.6
申请日：2007-07-19
申请人： QUADRANT EPP AG
CPC分类号： B29C47/14 , B29C47/0004 , B29C47/0019 , B29C47/54 , B29C47/86 , B29C47/862 , B29C47/864 , B29C47/866 , B29C47/8805 , B29C47/92 , B29C2947/92028 , B29C2947/92076 , B29C2947/92085 , B29C2947/92152 , B29C2947/92447 , B29C2947/92523 , B29C2947/92571 , B29C2947/9258 , B29C2947/92647 , B29C2947/92704 , B29C2947/92809 , B29C2947/92904 , B29C2947/92923 , B29C2947/92933 , B29C2947/92942 , B29K2023/0683
摘要： UHMWPE panels of large width may be ram extruded from a slit die in a stable process, by restraining a panel which exits the die below the crystalline melt temperature against movement away from the die by a back pressure device, so as to exert a back pressure between the back pressure device and the die, the back pressure device preferably constructed of a plurality of differentially adjustable elements so as to be able to compensate for changes in processing characteristics over time. Vertically restraining UHMWPE panels as they further cool also greatly improves product characteristics.
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公开(公告)号：EP2043838A1
公开(公告)日：2009-04-08
申请号：EP07763952.4
申请日：2007-07-19
申请人： QUADRANT EPP AG
CPC分类号： B29C47/86 , B29C47/0004 , B29C47/0019 , B29C47/003 , B29C47/0033 , B29C47/14 , B29C47/54 , B29C47/827 , B29C47/862 , B29C47/864 , B29C47/866 , B29C47/92 , B29C2947/92152 , B29C2947/92209 , B29C2947/92409 , B29C2947/92447 , B29C2947/92647 , B29C2947/92704 , B29C2947/92895 , B29C2947/92904 , B29C2947/92942 , B29K2023/0683 , B29K2105/06 , B29K2105/16 , B29K2105/256
摘要： UHMWPE panels of large width may be prepared by a continuous ram extrusion process by employing a slit die which preferably narrows from both sides in a direction transverse to the machine direction, and/or which employs a plurality of transversely positioned cooling zones located on the top and the bottom of the die, proximate the exit thereof. The panel exits the die at a temperature lower than the crystalline melt temperature.
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公开(公告)号：EP2043836A1
公开(公告)日：2009-04-08
申请号：EP07763951.6
申请日：2007-07-19
申请人： QUADRANT EPP AG
CPC分类号： B29C47/14 , B29C47/0004 , B29C47/0019 , B29C47/54 , B29C47/86 , B29C47/862 , B29C47/864 , B29C47/866 , B29C47/8805 , B29C47/92 , B29C2947/92028 , B29C2947/92076 , B29C2947/92085 , B29C2947/92152 , B29C2947/92447 , B29C2947/92523 , B29C2947/92571 , B29C2947/9258 , B29C2947/92647 , B29C2947/92704 , B29C2947/92809 , B29C2947/92904 , B29C2947/92923 , B29C2947/92933 , B29C2947/92942 , B29K2023/0683
摘要： UHMWPE panels of large width may be ram extruded from a slit die in a stable process, by restraining a panel which exits the die below the crystalline melt temperature against movement away from the die by a back pressure device, so as to exert a back pressure between the back pressure device and the die, the back pressure device preferably constructed of a plurality of differentially adjustable elements so as to be able to compensate for changes in processing characteristics over time. Vertically restraining UHMWPE panels as they further cool also greatly improves product characteristics.
摘要翻译： 通过将离开模具的面板限制在低于结晶熔体温度以防止通过背压装置从模具移动而将宽度大的UHMWPE面板从狭缝模具冲压挤出成稳定过程，以便施加背压 在背压装置和模具之间，背压装置优选由多个不同可调元件构成，以便能够补偿随着时间的过程特性的变化。 当UHMWPE板进一步冷却时，垂直约束UHMWPE板也大大提高了产品特性。
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