摘要
在探月任务中,由于月球表面温度变化非常大,探测器上的电缆需要经历高温达125℃,低温达-180℃的严酷极限温度条件,因此电缆装联所用的电连接器、热缩套管、灌封胶等材料是否能经受住如此严酷的温度是一个疑问。为此开展了高低温下电缆用材料的特性变化试验,并对出现的问题进行了分析,得出了可适用于深空探测的合适的材料。试验结果如下:(1)airborn微小型电连接器在125℃高温下绝缘性能显著下降,国产J30JH微小型连接器高温绝缘性能较稳定;(2)125℃高温下国产RSG热缩套管发生熔化并粘连;(3)高低温循环作用下,采用ATUM套管加热缩带或纯热缩带的方式可保证尾罩处理满足使用要求。
In lunar exploration program, there is a large temperature change on lunar surface. Cables in lunar orbiter is subject to 125℃ high temperature, and -180℃ low temperature. There is a question that, the materials used in cable assembly, such as connectors, heat-shrinkable sleevings, staking glues, can withstand the extreme temperature. Materials used in space cable assembly has been investigated, Results show that： （1） The insulation resistance of AIRBORN MM connector decreased obviously when the temperature increased to 125℃, but the insulating property of the J30J connector was stable; （2） The RSG heat-shrinkable sleeving melted and stuck together in 125℃ high temperature; （3） Using ATUM tubing plus heat-shrinkable ribbon, or only using heat-shrinkable ribbon to deal with the forming wires in the connector back shells, could meet the requirements.
出处
《电子工艺技术》
2014年第6期341-344,共4页
Electronics Process Technology
关键词
月表温度
电缆
装联材料
Lunar surface
Temperature
Cable
Material
