碳纤维复合材料承力筒长桁预制工艺技术

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。

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

This paper disscuses the development of carbon/epoxy stringerpreforms of a corrugated cylinder for a certain type of satellite.The changeof the property of the resin matrix during curing process is studied byusing a method called Dynamic Dielectric Analysis (DDA) to determine theoptimum technological parameters for prebleeding of the prepreg and theprecompaction of the preforms.The curing degree of the preforms is alsodetermined using the dielectric loss curves. The forming of the preforms arecarried out on a soft-hard sectional die and the preforms developed satisfythe requirements of the manufacture of the carbon/epoxy corrugated cylin-der which has passed the ground mechanical tests later.