复合应力场双向增强塑料管材的研究  

STUDY OF THE TWO-DIMENSIONAL REINFORCEMENTS OF PLASTIC PIPES EXTRUDED IN SHEARING-DRAWING TWO-DIMENSIONAL COMPOUND STRESS FIELD

作　　者：袁毅[1] 李安定[1] 申开智[1] 

机构地区：[1]四川大学高分子科学与工程学院高分子材料工程国家重点实验室,四川成都610065

出　　处：《高分子材料科学与工程》2005年第3期216-218,共3页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20174026)

摘　　要：利用自行设计制造的剪切拉伸双向复合应力场挤管装置,在常规生产工艺条件下高效地生产出了高密度聚乙烯管材。对该管材的双向增强问题及剪切转速对增强效果的影响进行了研究探讨。结果表明,本方案可同时实现管材的轴向和周向性能的双向增强,且挤出效率较高,有较广的应用前景。Using shearing-drawing two-dimensional compound stress field die developed by the authors, HDPE1158 pipes were extruded efficiently. The two-dimensional reinforcements of these pipes were studied in this article. It is found that the shearing-drawing two-dimensional compound stress field increases the circular and axial strength and modulus of the pipe at the same time. The best improvement of strength is more than 54% and the modulus′ is more than 140%. The circular reinforcements of strength and modulus are better than the axial reinforcements. Furthermore, after reinforcing, the circular strength and modulus of HDPE1158 pipe are higher than its axial strength and modulus, which satisfies the real need of pipe better. And the productivity is high.

关 键 词：复合应力场 挤管模 增强 管材 

分 类 号：TQ320.724[化学工程—合成树脂塑料工业]