聚乙烯绝缘CO_2物理发泡浅析

该文主要论述了在物理发泡射频同轴电缆的生产过程中,CO_2发泡和N_2发泡相比具有提高物理发泡射频同轴电缆绝缘的发泡度,从而降低成本,提高衰减性能的优点,阐述了CO_2注气系统的原理及在生产过程中为避免液态的CO_2汽化形成"干冰"堵塞气管而采取的措施,还论述了CO_2注气压力和流量的计算方法,为生产过程中CO_2流量和压力的稳定控制提供了理论依据,并结合实例进行了进一步分析。

This paper mainly discusses the production process in physical foaming RF coaxial cable,CO2 foaming and N2 foaming compared with physical foaming RF coaxial cable insulation foaming degree,to reduce cost,improve the attenuation performance,the principle of CO2 injection system and the measures taken in the production process to avoid"dry ice"blocking the gas pipe due to the vaporization ofliquid CO2,the calculation method of CO2 injection pressure and flow provides a theoretical basis for the stable control of CO2 flow and pressure in the production process,and combined with examples are further analyzed.