CN105655057B - 一种耐扭曲软电缆的制备工艺 - Google Patents

一种耐扭曲软电缆的制备工艺 Download PDF

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CN105655057B
CN105655057B CN201511007192.XA CN201511007192A CN105655057B CN 105655057 B CN105655057 B CN 105655057B CN 201511007192 A CN201511007192 A CN 201511007192A CN 105655057 B CN105655057 B CN 105655057B
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黄伟
朱勇
叶军猛
汪剑锋
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Hefei Xingchen Electric Wire & Cable Co Ltd
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Abstract

本发明公开一种耐扭曲软电缆的制备工艺，包括以下步骤：将多根直径相同的镀锡铜丝绞合成导体线芯；在导体线芯外绕包三层聚丙烯带；在聚丙烯带外同步挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，所述三元乙丙橡胶绝缘层设置与内侧，硅橡胶绝缘层设置在外侧；在硅橡胶绝缘层外侧挤包氯化聚乙烯护套。本发明耐扭曲软电缆的制备工艺以镀锡铜丝为导体线芯，在导体线芯外绕包三层聚丙烯带，同时挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，最后挤包聚乙烯护套，该工艺设置了双层绝缘，本发明工艺制备得到的软电缆具有很好的耐扭曲性能，耐零下45℃低温，适合户外工作。

Description

一种耐扭曲软电缆的制备工艺
技术领域
本发明属于电缆领域，具体是一种耐扭曲软电缆的制备工艺。
背景技术
电缆通常是由几根或几组导线[每组至少两根]绞合而成的类似绳索的电缆，每组导线之间相互绝缘，并常围绕着一根中心扭成，整个外面包有高度绝缘的覆盖层。电缆按其用途可分为电力电缆、通信电缆和控制电缆等。与架空线相比,电缆的优点是线间绝缘距离小,占地空间小，地下敷设而不占地面以上空间，不受周围环境污染影响，送电可靠性高，对人身安全和周围环境干扰小。但造价高，施工、检修均较麻烦，制造也较复杂。因此，电缆多应用于人口密集和电网稠密区及交通拥挤繁忙处；在过江、过河、海底敷设则可避免使用大跨度架空线。在需要避免架空线对通信干扰的地方以及需要考虑美观或避免暴露目标的场合也可采用电缆。
应用在户外的风力电缆，经常会出现电缆外皮起皱扭曲的现象，造成与电缆相连的设备不能正常工作，更换电缆后不久又出现同样的问题，存在安全隐患，也造成了经济损失。
发明内容
针对现有技术的不足，本发明提出一种耐扭曲软电缆的制备工艺。
本发明的目的可以通过以下技术方案实现：
一种耐扭曲软电缆的制备工艺，其特征在于，包括以下步骤：
（1）将多根直径相同的镀锡铜丝绞合成导体线芯；
（2）在导体线芯外绕包三层聚丙烯带；
（3）在聚丙烯带外同步挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，所述三元乙丙橡胶绝缘层设置在内侧，硅橡胶绝缘层设置在外侧；
所述三元乙丙橡胶绝缘层的组分及重量份数为：三元乙丙橡胶80-90份、超细滑石粉20-26份、碳酸钙16-20份、乙烯基三硅烷2-4份、微晶石蜡3.5-5.5份、氧化锌0.1-0.6份、二苯甲酮1-1.5份、季戊四醇三烯丙醚0.1-0.3份、氢氧化铝45-56份、防老剂0.1-1份；
所述硅橡胶绝缘层的组分及重量份数为：甲基乙烯基硅橡胶78-84份、二元乙丙橡胶3-8份、白炭黑20-25份、羟基硅油1-3份、抗氧剂0.1-0.5份、紫外线吸收剂0.1-0.3份、硼酸锌3.5-5.5份、三氧化二锑8-12份；
（4）在硅橡胶绝缘层外侧挤包氯化聚乙烯护套。
所述步骤（3）防老剂为防老剂RD。
所述步骤（3）抗氧剂为2，6-三级丁基-4-甲基苯酚、双(3，5-三级丁基-4-羟基苯基)硫醚、四[β-(3，5-三级丁基-4-羟基苯基)丙酸]季戊四醇酯中的一种。
所述步骤（3）紫外线吸收剂为2-羟基-4-正辛氧基二苯甲酮。
本发明的有益效果：本发明耐扭曲软电缆的制备工艺以镀锡铜丝为导体线芯，在导体线芯外绕包三层聚丙烯带，同时挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，最后挤包聚乙烯护套，该工艺设置了双层绝缘；三元乙丙橡胶绝缘层中加入超细滑石粉和碳酸钙，改善了橡胶的柔软度，本发明工艺制备得到的软电缆具有很好的耐扭曲性能、绝缘性能，耐零下45℃低温，适合户外工作。
具体实施方式
实施例1
一种耐扭曲软电缆的制备工艺，包括以下步骤：
（1）将多根直径相同的镀锡铜丝绞合成导体线芯；
（2）在导体线芯外绕包三层聚丙烯带；
（3）在聚丙烯带外同步挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，三元乙丙橡胶绝缘层设置在内侧，硅橡胶绝缘层设置在外侧；
三元乙丙橡胶绝缘层的组分及重量份数为：三元乙丙橡胶80份、超细滑石粉20份、碳酸钙20份、乙烯基三硅烷2份、微晶石蜡5.5份、氧化锌0.2份、二苯甲酮1份、季戊四醇三烯丙醚0.1份、氢氧化铝46份、防老剂RD0.2份；
硅橡胶绝缘层的组分及重量份数为：甲基乙烯基硅橡胶84份、二元乙丙橡胶8份、白炭黑20份、羟基硅油1份、2，6-三级丁基-4-甲基苯酚0.2份、2-羟基-4-正辛氧基二苯甲酮0.1份、硼酸锌3.5份、三氧化二锑8份；
（4）在硅橡胶绝缘层外侧挤包氯化聚乙烯护套。
实施例2
实施例2步骤与实施例1相同，区别在于：
三元乙丙橡胶绝缘层的组分及重量份数为：三元乙丙橡胶90份、超细滑石粉26份、碳酸钙16份、乙烯基三硅烷4份、微晶石蜡4份、氧化锌0.6份、二苯甲酮1.5份、季戊四醇三烯丙醚0.3份、氢氧化铝56份、防老剂RD1份；
硅橡胶绝缘层的组分及重量份数为：甲基乙烯基硅橡胶84份、二元乙丙橡胶4份、白炭黑25份、羟基硅油3份、四[β-(3，5-三级丁基-4-羟基苯基)丙酸]季戊四醇酯0.5份、2-羟基-4-正辛氧基二苯甲酮0.3份、硼酸锌5份、三氧化二锑12份。
实施例3
实施例3步骤与实施例1相同，区别在于，抗氧剂为双(3，5-三级丁基-4-羟基苯基)硫醚。
以上内容仅仅是对本发明结构所作的举例和说明，所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，只要不偏离发明的结构或者超越本权利要求书所定义的范围，均应属于本发明的保护范围。

Claims (4)

1.一种耐扭曲软电缆的制备工艺，其特征在于，包括以下步骤：
（1）将多根直径相同的镀锡铜丝绞合成导体线芯；
（2）在导体线芯外绕包三层聚丙烯带；
（3）在聚丙烯带外同步挤包三元乙丙橡胶绝缘层和硅橡胶绝缘层，所述三元乙丙橡胶绝缘层设置在内侧，硅橡胶绝缘层设置在外侧；
所述三元乙丙橡胶绝缘层的组分及重量份数为：三元乙丙橡胶80-90份、超细滑石粉20-26份、碳酸钙16-20份、乙烯基三硅烷2-4份、微晶石蜡3.5-5.5份、氧化锌0.1-0.6份、二苯甲酮1-1.5份、季戊四醇三烯丙醚0.1-0.3份、氢氧化铝45-56份、防老剂0.1-1份；
所述硅橡胶绝缘层的组分及重量份数为：甲基乙烯基硅橡胶78-84份、二元乙丙橡胶3-8份、白炭黑20-25份、羟基硅油1-3份、抗氧剂0.1-0.5份、紫外线吸收剂0.1-0.3份、硼酸锌3.5-5.5份、三氧化二锑8-12份；
（4）在硅橡胶绝缘层外侧挤包氯化聚乙烯护套。
2.根据权利要求1所述的耐扭曲软电缆的制备工艺，其特征在于，所述步骤（3）防老剂为防老剂RD。
3.根据权利要求1所述的耐扭曲软电缆的制备工艺，其特征在于，所述步骤（3）抗氧剂为2，6-三级丁基-4-甲基苯酚、双(3，5-三级丁基-4-羟基苯基)硫醚、四[β-(3，5-三级丁基-4-羟基苯基)丙酸]季戊四醇酯中的一种。
4.根据权利要求1所述的耐扭曲软电缆的制备工艺，其特征在于，所述步骤（3）紫外线吸收剂为2-羟基-4-正辛氧基二苯甲酮。
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