中国空间科学技术

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碳纤维复合材料承力筒长桁预制工艺技术

师用   

  1. 北京卫星制造厂
  • 发布日期:1992-10-25

TECHNIQUES FOR DEVELOPMENT THE CARBON/EPOXY STRINGER PREFORMS OF A CORRUGATED CYLINDER FOR SATELLITES

Shi Young (Beijing Spacecrafts)   

  • Online:1992-10-25

摘要: 叙述了某型号卫星碳纤维复合材料承力筒长桁预制件的研制技术。运用介电损耗仪研究树脂基体在固化过程中的性能变化,以确定预浸料吸胶及预制件预压的工艺规范。预制件的成型采用软硬模相结合的方法,所研制的长桁预制件的性能满足了碳承力筒研制总工艺的要求,并通过了碳承力筒的地面力学性能试验。

关键词: 碳纤维增强复合材料, 结构件, 损耗测量, 性能试验

Abstract: This paper disscuses the development of carbon/epoxy stringer preforms of a corrugated cylinder for a certain type of satellite.The change of the property of the resin matrix during curing process is studied by using a method called Dynamic Dielectric Analysis (DDA) to determine the optimum technological parameters for prebleeding of the prepreg and the precompaction of the preforms.The curing degree of the preforms is also determined using the dielectric loss curves. The forming of the preforms are carried out on a soft-hard sectional die and the preforms developed satisfy the requirements of the manufacture of the carbon/epoxy corrugated cylin- der which has passed the ground mechanical tests later.

Key words: Carbon fiber reinforced comosite, Structural member, Loss measurement, Performance test