C/C复合材料螺栓紧固特性  

Tightening Characteristic of C/C Composite Material Bolt

作　　者：孙鹏军[1,2] 雷勇军[1] 吴宏伟 安军 李新涛[3] 

机构地区：[1]国防科学技术大学航天科学与工程学院,长沙410073 [2]空间物理重点实验室,北京100076 [3]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2017年第1期59-61,共3页Aerospace Materials & Technology

摘　　要：为了获得C/C螺栓紧固特性,采用紧固力矩试验方法开展了不同结构C/C螺栓紧固特性研究,研究内容包括不同垫片材料、单螺母和双螺母、涂胶和不涂胶等组合情况下C/C螺栓K值的变化趋势,并研究了C/C螺栓的极限抗扭能力。结果表明:碳基螺栓的扭矩系数值K与金属螺栓差异很大,不同材料结构也有差异,涂胶对增加夹紧力有明显的提高作用。In order to obtain the tightening characteristics of C/C composite material bolt, the tightening torque characteristics of C/C composite material bolt with different structures were studied in this paper. The research can in- clude the variation trend of the torque coefficient K of the bolts in different combinations of gasket material, single nuts and double nuts, scribbling with adhesives and non-scribbling with adhesives. The ultimate torsional resistance of C/ C composite material bolt was studied. The results show that the torque coefficient K of the bolts is different from that of the metal bolts. The scribbling with adhesives can obviously improve the clamping force.

关 键 词：螺纹扭矩 夹紧力 扭矩系数 紧固力矩 

分 类 号：TB33[一般工业技术—材料科学与工程]