碳/碳材料与石棉/酚醛间热摩擦系数试验

推进技术 ›› 2012, Vol. 33 ›› Issue (3): 468-471.

碳/碳材料与石棉/酚醛间热摩擦系数试验

刘芹,生志斐,史宏斌,陈慧,刘曙光

西安航天动力技术研究所,陕西西安 710025;西安航天动力技术研究所,陕西西安 710025;西安航天动力技术研究所,陕西西安 710025;西安航天动力技术研究所,陕西西安 710025;西安航天动力技术研究所,陕西西安 710025

发布日期:2021-08-15
作者简介:刘芹(1978—),女,博士,高级工程师,研究领域为固体火箭发动机喷管设计。E-mail:celery@mail.nwpu.edu.cn
基金资助:
国家“九七三”项目(61391)。

Experiment of Thermal Friction Coefficient Between Carbon/Carbon and Asbestos Phenolic Material

Xi’an Institute of Aerospace Propulsion, Xi’an 710025,China;Xi’an Institute of Aerospace Propulsion, Xi’an 710025,China;Xi’an Institute of Aerospace Propulsion, Xi’an 710025,China;Xi’an Institute of Aerospace Propulsion, Xi’an 710025,China;Xi’an Institute of Aerospace Propulsion, Xi’an 710025,China

Published:2021-08-15

摘要/Abstract

摘要： 根据固体火箭发动机喉部结构的实际工况,取样并设计试验,采用SRV高温摩擦磨损试验机测试了碳/碳与模压石棉/酚醛材料间的热摩擦系数,总结了这两类材料间的摩擦系数随温度、接触载荷及摩擦速度的变化规律。试验结果表明,碳/碳与模压石棉/酚醛材料间的热摩擦系数随温度升高呈非线性单调下降趋势；含胶层的两材料组件间摩擦系数明显高于无胶层组件间摩擦系数；温度一定条件下,载荷增加使得摩擦系数小幅降低；随着摩擦速度的提高,摩擦系数呈增大趋势。 

关键词: 喉衬组件;碳/碳材料;摩擦系数;试验研究

Abstract: This paper presents the experimental results of thermal friction coefficient between the carbon/ carbon material and moulded asbestos/phenolic material by SRV high temperature friction wear testing machine. The test design and specimen sampling are based on the real work conditions. The variation regularity of friction coefficient with temperature, contact load and friction speed are generalized. The test results show that increasing the temperature may decrease the thermal friction coefficient between the carbon/carbon material and moulded asbestos/phenolic material; the friction coefficient of the throat component with glue is larger than the component without glue significantly.Increasing the load may reduce the friction coefficient obscurely. With the friction speed enhanced, the coefficient increases obviously. The test results can provide some helpful reference value to the modification of nozzle thermal structure analysis model with high precision calculation. 

Key words: Throat component; Carbon/Carbon material; Friction coefficient; Experimental investigation.

刘芹,生志斐,史宏斌,陈慧,刘曙光. 碳/碳材料与石棉/酚醛间热摩擦系数试验[J]. 推进技术, 2012, 33(3): 468-471.