带缓冲槽的芯棒在挤出管材机头中的设计应用

Mandrel with a buffer tank in pipe extrusion head of design applications

介绍一种带缓冲槽的芯棒在挤出塑料管材机头中的设计应用,为了提高物料的塑化性能好和加工性能,对管材的机头结构特点进行了优化设计,在芯棒处增设了两道阻流和缓冲槽装置。结果表明:机头设计合理,与普通挤出管材机头相比,物料具有塑化性能好,挤出稳定,管材密实强度高。

This paper introduces a mandrel with a buffer tank design applications in plastic pipe extrusion head in order to improve the good plasticizing properties and processing properties of materials, the structural characteristics of the head pipe optimized design, the mandrel Department added a spoiler and two buffer tank unit. The results showed that： head design is reasonable, compared with ordinary pipe extrusion head, the material has a plasticizing properties, extrusion stability, high strength pipe dense.