首页>
外国专利>
METHOD OF MAKING EXTRUDED MICROCELLULAR POLYMER FOAM PIPE, A MICROCELLULAR POLYMER FOAM PIPE AND DIE
METHOD OF MAKING EXTRUDED MICROCELLULAR POLYMER FOAM PIPE, A MICROCELLULAR POLYMER FOAM PIPE AND DIE
展开▼
机译:挤出的微孔聚合物泡沫管,管芯和模具的制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Described is an article a pipe of polymer micro-foam material having an impact strength value measured at which is higher than 100 % and up to 400 % of the impact strength as required in the BN-norm of a pipe of the same dimensions and basic material in non-foamed condition. Also are described methods for producing such pipe. Also a die (1) for an extruder is described having, before the slit (2) thereof, a channel (3) which narrows to the slit with an angle alpha between 10 and 180°, preferably 10 and 90°. Further is described an extruder including a die according to the invention
展开▼