CN105632580A - 宇航用超轻型低频电线电缆 - Google Patents
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Abstract
本发明是宇航用超轻型低频电线电缆:其特征是单芯或多芯,每芯有一个采用紧压轻型多股镀银或镀银铜合金单丝绞合的导体,在导体的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物材料并经电子加速器辐照交联的超薄绝缘层,绝缘层的外围是采用多股镀银铜丝单向缠绕的屏蔽层,屏蔽层的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物并经电子加速器辐照交联轻型护套层。优点:宇航用电线电缆,轻型的导体和超薄的绝缘和护套层以及单向缠绕的屏蔽层,使其具有重量轻和外径小的特点,同时具有耐极限低温、耐高温、耐辐照、耐真空原子氧、绝缘切割强度大,耐真空逸气,绝缘和非金属材料燃烧和逸出产生有害气体含量少等,适用于宇航环境下航天器、空间站以及其它宇航设备上的低频环境下电子、电器间的信号传输,控制传输和能量传输。
Description
技术领域
本发明提出的是一种属C55系列的宇航用超轻型低频电线电缆,适用于宇航环境下航天器、空间站以及其它宇航设备上低频环境下电子、电器间的信号传输,控制传输和能量传输。具有优异的机械性能、电性能和耐宇航空间环境性能(耐辐照、耐真空原子氧等),在-100~+200℃范围内长期使用。
背景技术
随着航天设备的高度集成化和功能的复杂化,要求电线电缆网的重量继续能实现轻量化,以减轻整个航天设备重量。但目前所应用C55常规导线并不能满足更小重量的需求。现有产品是以GJB/773A-2000《航空航天用含氟聚合物绝缘电线电缆》为依据,通过减薄绝缘和护套厚度以及改变编织方式使产品外径更小,重量更轻。
本发明提出的是一种C55系列宇航用超轻型低频电线电缆,其目的旨在减轻电线电缆的重量,并根据用户的特殊要求制定的,同时也充分考虑了其适用性和可靠性和宇航环境耐辐照、耐原子氧、以及材料有害气体含量小等特殊要求。
发明内容
本发明的技术解决方案:其特征是单芯或多芯结构,每芯有一个采用紧压轻型多股镀银铜或镀银铜合金单丝绞合的导体,在导体的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)材料并经电子加速器辐照交联的单层超薄壁轻型绝缘层,绝缘层的外围是采用镀银铜丝单向缠绕的
屏蔽层,屏蔽层的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)并经电子加速器辐照交联轻型护套层,多芯是指双芯、三芯、四芯、五芯、六芯或七芯。
本发明具有以下优点:
宇航用电线电缆,轻型的导体和超薄的绝缘和护套层以及单向缠绕的屏蔽层,使其具有重量轻和外径小的特点,同时具有耐极限低温、耐高温、耐辐照、耐真空原子氧、绝缘切割强度大,耐真空逸气,绝缘和非金属材料燃烧和逸出产生有害气体含量少等,适用于宇航环境下航天器、空间站以及其它宇航设备上的低频环境下电子、电器间的信号传输,控制传输和能量传输。
附图说明
附图1是本发明的生产工艺流程图。
附图2是单芯结构示意图。
附图3是双芯结构示意图。
附图4是单芯电线电缆结构示意图。
附图5是双芯电线电缆结构示意图。
附图6是三芯电线电缆结构示意图。
附图7是四芯电线电缆结构示意图。
附图8是五芯电线电缆结构示意图。
附图9是六芯电线电缆结构示意图。
附图10是七芯电线电缆结构示意图。
图中的1是导体;2是绝缘层;3是屏蔽层;4是护套层。
具体实施方式
对照附图,导体为紧压式绞合导体,用多股镀银铜单丝或铜合金单丝在电线电缆束绞机上进行同心式绞合,绞合后经过模具挤压制成;
绝缘层采用交联-乙烯四氟乙烯共聚物交联料,通过选用合适的挤管式模具在高温挤塑机上挤出超薄的交联-乙烯四氟乙烯共聚物交联料,并经电子加速器辐照交联制成;
屏蔽层采用镀银铜丝,在编织机或者缠绕机上进行单向缠绕制成;
护套层采用交联-乙烯四氟乙烯共聚物交联料,通过选用合适的挤管式模具在高温挤塑机上挤出超薄的交联-乙烯四氟乙烯共聚物交联料,并经电子加速器辐照交联制成。
耐高低温宇航用超轻型低频电线电缆,其特征是单芯或多芯,每芯有一个采用紧压轻型多股镀银和镀银铜合金单丝绞合的导体1,在导体1的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)材料并经电子加速器辐照交联的单层超薄绝缘层2,绝缘层2的外围是采用镀银铜丝单向缠绕的屏蔽层3,屏蔽层3的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)并经电子加速器辐照交联轻型护套层4。
产品经检测具有以下特点:
(1)耐极限低温:电缆可以在―100℃下正常敷设安装,可以解决一般材料由于低温敷设易造成硬化、脆裂等问题,从而满足宇航低温环境的使用要求。电缆还可以在极低温度的液氮(-196℃)中静态浸没96小时不开裂;
(2)耐高温:电缆可以在300℃下两端挂重在一定直径的试棒上保持6h不开裂,浸水电压1.0kV,1min不击穿;
(3)外径小和重量轻:绝缘厚度为0.08mm~0.14mm,护套厚度为0.10mm~0.15mm,绝缘和护套外径更小,产品整体重量更轻。产品外径比普通C55宇航用电线电缆减小5%~20%,产品重量比普通C55宇航用电线电缆减轻5%~33%,可以减小敷设空间,减轻产品在空间飞行器的重量;
(4)耐辐照:产品的耐辐照总剂量最高可达5MGy(5×108rad);
(5)耐真空原子氧:电线电缆在能量为5eV的原子氧照射(轰击)下,其剥蚀率Ey应不大于5×10-29m3/AO;
(6)耐真空逸气:绝缘材料的总质量损失(TML)≤1%,可凝聚挥发物(CVCM)≤0.1%;
(7)非金属材料有害气体逸出:正常大气环境,101.325kPa,50℃,72h,电线电缆非金属材料排出刺激性和特殊气味气体的气味等级不大于1.5级;脱出一氧化碳不大于25ug/g;脱出总有机物不大于100μg/g;
(8)绝缘切割强度:电线绝缘切割强度应不小于352Mpa;
(9)屏蔽电缆重量损失:重量损失不大于0.4%;
(10)绝缘材料燃烧产生的有毒气体含量检测结果符合国家要求。
Claims (6)
1.耐高低温宇航用超轻型低频电线电缆,其特征是单芯或多芯结构,每芯有一个采用紧压轻型多股镀银或镀银铜合金单丝绞合的导体(1),在导体(1)的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)材料并经电子加速器辐照交联的单层薄壁轻型绝缘层(2),绝缘层(2)的外围是采用多股镀银铜丝单向缠绕的屏蔽层(3),屏蔽层(3)的外围是采用高温挤出设备挤出交联-乙烯四氟乙烯共聚物(X-ETFE)并经电子加速器辐照交联轻型护套层(4);所述的多芯是双芯、三芯、四芯、五芯、六芯或七芯。
2.根据权利要求1所述的耐高低温宇航用超轻型低频电线电缆,其特征是所述的导体为紧压轻型导体,用多股镀银铜单丝或铜合金单丝在电线电缆束绞机上进行同心式绞合,绞合后经过模具挤压制成。
3.根据权利要求1所述的耐高低温宇航用超轻型低频电线电缆,其特征是所述的所述绝缘层采用交联-乙烯四氟乙烯共聚物交联料,通过选用合适的挤管式模具在高温挤塑机上挤出超薄的交联-乙烯四氟乙烯共聚物交联料,并经电子加速器辐照交联制成。
4.根据权利要求1所述的耐高低温宇航用超轻型低频电线电缆,其特征是所述屏蔽层采用镀银铜丝,在编织机或者缠绕机上进行单向缠绕制成;绝缘层厚度为0.08mm~0.14mm。
5.根据权利要求1所述的耐高低温宇航用超轻型低频电线电缆,其特征是所述护套层采用交联-乙烯四氟乙烯共聚物交联料,通过选用合适的挤管式模具在高温挤塑机上挤出超薄的交联-乙烯四氟乙烯共聚物交联料,并经电子加速器辐照交联制成,护套层厚度为0.10mm~0.15mm。
6.根据权利要求1所述的耐高低温宇航用超轻型低频电线电缆,其特征是产品外径比普通C55宇航用电线电缆减小5%~20%,产品重量比普通C55宇航用电线电缆减轻5%~33%;耐极限低温:电缆可在―100℃下正常敷设安装,电缆还可在极低温度的液氮(-196℃)中静态浸没96小时不开裂;
耐高温:电缆可以在300℃下两端挂重试棒上保持6h不开裂,浸水电压1.0kV,1min不击穿;
耐真空原子氧:电线电缆在能量为5eV的原子氧照射轰击下,其剥蚀率Ey应不大于5×10-29m3/AO;
耐真空逸气:绝缘材料的总质量损失(TML)≤1%,可凝聚挥发物(CVCM)≤0.1%;
非金属材料有害气体逸出:正常大气环境,101.325kPa,50℃,72h,电线电缆非金属材料排出刺激性和特殊气味气体的气味等级不大于1.5级;脱出一氧化碳不大于25ug/g;脱出总有机物不大于100μg/g;
绝缘切割强度:电线绝缘切割强度应不小于352Mpa;
屏蔽电缆重量损失:重量损失不大于0.4%。
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CN106057296A (zh) * | 2016-07-20 | 2016-10-26 | 四川九洲线缆有限责任公司 | 一种超柔耐高温辐照交联航天航空导线及其制备方法 |
CN106128599A (zh) * | 2016-08-04 | 2016-11-16 | 四川九洲线缆有限责任公司 | 一种轻型抗干扰机载光电综合缆及其制备方法 |
CN108962419A (zh) * | 2018-04-24 | 2018-12-07 | 南京全信传输科技股份有限公司 | 航空航天用轻型电线电缆及其制备方法 |
CN111223339A (zh) * | 2019-12-11 | 2020-06-02 | 张华平 | 一种基于物联网的工商管理教学系统 |
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