Radial distribution channel polyolefin pipe extrusion die
By combining radial distribution channel design with a cooling system, the problems of uneven mixing and bulky structure in the extrusion die of large-diameter, thick-walled polyolefin plastic pipes were solved, achieving efficient and low-cost melt mixing and cooling, thus improving pipe quality and production efficiency.
CN122401845APending Publication Date: 2026-07-17NINGBO FANGLI TECH
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
Smart Images
Figure CN122401845A_ABST
Abstract
本发明公开了一种径向分配流道聚烯烃管材挤出模具，属于塑料管材挤出成型技术领域。包括：由第一流道板与第二流道板贴合组成的熔体混合器，其形成沿径向布置并连通进料口和出料口的第一熔体流道；第一熔体流道包括从外到里同心排布的多级汇合流道，相邻级间及最后一级与出料口间均设若干分流道；由内模体组件和外模体组件组成的内外模组合体，内模体组件与第一流道板连接，外模体组件与第二流道板连接，其间形成连通出料口的第二熔体流道。通过多级汇合流道与分流道对熔体的交替剪切分流，实现熔体极佳的均匀混合，消除螺旋痕及分层缺陷；同时，径向式的熔体混合器大幅度缩减了整个模具轴向尺寸，降低模具成本及设备对厂房空间的占用要求。
Need to check novelty before this filing date? Find Prior Art