摘要
测试了几种编织工艺聚丙烯腈基碳纤维及其电热元件的电热性能,并进行了电热辐射机理分析。结果表明:编织工艺对碳纤维(毡)电热体及其电热元件的电热温升、阻温特性、热惯性均有较大影响;采用多股绳编织工艺,可以改善碳纤维电热元件的电热性能,降低其热惯性,同时也可降低电热体自身的表面负荷。编织工艺与电热辐射特性结合,可以实现温度的自我调节,提高碳素电热材料的温敏效应。
The electro-thermal feature of PAN-based carbon fiber and its electric heating element on different weave process had been tested and the electro-thermal radiant mechanism had been analyzed. The results show that the weave process have great influence on the power-temperature property, resistance-temperature property and thermal inertia of carbon fiber （felt） and its electric heating element; With multi-compound yarn process, the electro-thermal feature can be improved, its thermal inertia can be decreased, and the power density of carbon fiber can also be decreased. With the help of the weave process and electro-thermal radiant properties, the temperature of the PAN-based carbon fiber （felt） can be adjusted by itself and the temperature sensibility of carbon electro-thermal materials can be improved.
出处
《机械工程材料》
CAS
CSCD
北大核心
2007年第9期26-29,57,共5页
Materials For Mechanical Engineering
基金
国家高技术研究发展计划(863计划)资助项目(2002AA304090)
