高强度聚烯烃管材成型方法的研究进展

Research Progress of High Strength Polyolefin Pipes Forming Methods

介绍了7种高性能聚烯烃管材成型技术的原理及优缺点,这些成型方法主要通过改变加工过程中的温度场及应力场等来提高管材的环向强度。其中,三层复合管材旋转挤出成型技术是一种简单而有效生产高性能复合管材的成型技术,是未来生产高性能复合增强管材的一种趋势,该技术具有十分广阔的应用前景。

The principle of the molding technology and merit and shortcoming of 7 kinds of polyolefin high-performance pipe forming technology were introduced.These forming methods mainly improve the circumferential strength of the pipe by changing the temperature field and stress field in the processing process,so as to meet high use requirements.Among them,the three-layer composite pipe rotary extrusion technology is simple and effective molding technology to produce high-performance composite pipe,which is trend to produce high-performance composite reinforced pipe in the future,and this technology has broad application prospect.