CN112500632A - 一种耐老化信号线的生产工艺 - Google Patents

一种耐老化信号线的生产工艺 Download PDF

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CN112500632A
CN112500632A CN202011383729.3A CN202011383729A CN112500632A CN 112500632 A CN112500632 A CN 112500632A CN 202011383729 A CN202011383729 A CN 202011383729A CN 112500632 A CN112500632 A CN 112500632A
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林文树
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Abstract

本发明涉及信号线缆技术领域,具体是公开了一种耐老化信号线的生产工艺,包括以下步骤:选择钢线母线材,脱壳后拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;将七根线芯绞合成绞合导线;制备护套料,挤出护套料包覆绞合导线,进行辐照交联改性处理,得到所述耐老化信号线。本发明克服了现有技术的不足,优化信号线的耐老化性能,满足不同场景下的应用,延长信号线的使用寿命,降低使用成本。

Description

一种耐老化信号线的生产工艺
技术领域
本发明涉及信号线缆技术领域,具体属于一种耐老化信号线的生产工艺。
背景技术
信号线主要是指在电气控制电路中用于传递传感信息与控制信息的线路。信号线往往以多条电缆线构成为一束或多束传输线,也可以是排列在印制板电路中的印制线,随着科技与应用的不断进步,信号线已由金属载体发展为其它载体,如光缆等。
信号线的应用场景广泛,在户外使用时信号线经过风吹日晒容易老化,影响信号线的使用寿命,同时影响信号传输的效率。
发明内容
本发明的目的是提供了一种耐老化信号线的生产工艺,克服了现有技术的不足,优化信号线的耐老化性能,满足不同场景下的应用,延长信号线的使用寿命,降低使用成本。
为解决上述问题,本发明所采取的技术方案如下:
一种耐老化信号线的生产工艺,包括以下步骤:
(1)线芯处理;选择线径为Φ6.0mm的钢线母线材,脱壳除去氧化层后置于高速连续拉丝机上拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;
(2)线芯绞合;选取7根步骤(1)得到的线芯,并将其绞合形成绞合导线;
(3)护套料制备;按照重量份称取以下原料:线性低密度聚乙烯100-120份、热塑性弹性体60-80份、抗氧剂5-15份、抗老化剂2-8份、紫外线吸收剂1-5份、石蜡6-12份、阻燃剂10-20份和相容剂1-9份;将上述原料置于45℃鼓风干燥箱中干燥1h、再混合均匀后,加入密炼机中,熔融共混后冷却至室温,得到护套料;
(4)通过挤塑机将护套料包覆制成的绞合导线,然后进行辐照交联改性处理,得到所述耐老化信号线。
进一步,所述护套料按照重量份包括以下原料:线性低密度聚乙烯110份、热塑性弹性体70份、抗氧剂10份、抗老化剂5份、紫外线吸收剂3份、石蜡9份、阻燃剂15份和相容剂5份。
进一步,所述抗氧剂采用抗氧剂TNP、抗氧剂TPP和抗氧剂1010中的一种或多种的组合。
进一步,所述阻燃剂包括氢氧化铝作为主阻燃剂,磷化铬和有机蒙脱土作为协同阻燃剂,且氢氧化铝、磷化铬和有机蒙脱土按照3:1:1的质量比复配。
进一步,所述相容剂为马来酸酐接枝相容剂。
进一步,所述步骤(4)中辐照交联改性处理采用γ射线进行辐照处理,其处理速度为2-10m/min,单次辐照剂量为20Gy-30kGy。
本发明与现有技术相比较,本发明的实施效果如下:
本发明所述一种耐老化信号线的生产工艺,通过用线性低密度聚乙烯和热塑性弹性体作为基材,添加抗氧剂、抗老化剂、紫外吸收剂和阻燃剂,提高信号线护套的耐老化性能,满足不同场景下的应用,延长信号线的使用寿命,降低使用成本;进行辐照交联改性处理,在辐照处理中,可以将高能电子转化成稳定的键能,使其分子结构对热稳定性加强,进一步提高耐老化性能。
具体实施方式
下面结合实施例对本发明作进一步的描述,但本发明不仅限于这些实例,在为脱离本发明宗旨的前提下,所为任何改进均落在本发明的保护范围之内。
实施例1
本实施例公开了一种耐老化信号线的生产工艺,包括以下步骤:
(1)线芯处理;选择线径为Φ6.0mm的钢线母线材,脱壳除去氧化层后置于高速连续拉丝机上拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;
(2)线芯绞合;选取7根步骤(1)得到的线芯,并将其绞合形成绞合导线;
(3)护套料制备;按照重量份称取以下原料:线性低密度聚乙烯100份、热塑性弹性体60份、抗氧剂TNP 5份、抗老化剂2份、紫外线吸收剂1份、石蜡6份、氢氧化铝6份、磷化铬2份、有机蒙脱土2份和马来酸酐接枝相容剂1份;将上述原料置于45℃鼓风干燥箱中干燥1h、再混合均匀后,加入密炼机中,熔融共混后冷却至室温,得到护套料;
(4)通过挤塑机将护套料包覆制成的绞合导线,然后进行辐照交联改性处理,辐照交联改性处理采用γ射线进行辐照处理,其处理速度为2-10m/min,单次辐照剂量为20Gy-30kGy,得到所述耐老化信号线。
实施例2
本实施例公开了一种耐老化信号线的生产工艺,包括以下步骤:
(1)线芯处理;选择线径为Φ6.0mm的钢线母线材,脱壳除去氧化层后置于高速连续拉丝机上拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;
(2)线芯绞合;选取7根步骤(1)得到的线芯,并将其绞合形成绞合导线;
(3)护套料制备;按照重量份称取以下原料:线性低密度聚乙烯110份、热塑性弹性体70份、抗氧剂TPP 10份、抗老化剂5份、紫外线吸收剂3份、石蜡9份、氢氧化铝9份、磷化铬3份、有机蒙脱土3份和马来酸酐接枝相容剂5份;将上述原料置于45℃鼓风干燥箱中干燥1h、再混合均匀后,加入密炼机中,熔融共混后冷却至室温,得到护套料;
(4)通过挤塑机将护套料包覆制成的绞合导线,然后进行辐照交联改性处理,辐照交联改性处理采用γ射线进行辐照处理,其处理速度为2-10m/min,单次辐照剂量为20Gy-30kGy,得到所述耐老化信号线。
实施例3
本实施例公开了一种耐老化信号线的生产工艺,包括以下步骤:
(1)线芯处理;选择线径为Φ6.0mm的钢线母线材,脱壳除去氧化层后置于高速连续拉丝机上拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;
(2)线芯绞合;选取7根步骤(1)得到的线芯,并将其绞合形成绞合导线;
(3)护套料制备;按照重量份称取以下原料:线性低密度聚乙烯120份、热塑性弹性体80份、抗氧剂TPP 15份、抗老化剂8份、紫外线吸收剂5份、石蜡13份、氢氧化铝12份、磷化铬4份、有机蒙脱土4份和马来酸酐接枝相容剂9份;将上述原料置于45℃鼓风干燥箱中干燥1h、再混合均匀后,加入密炼机中,熔融共混后冷却至室温,得到护套料;
(4)通过挤塑机将护套料包覆制成的绞合导线,然后进行辐照交联改性处理,辐照交联改性处理采用γ射线进行辐照处理,其处理速度为2-10m/min,单次辐照剂量为20Gy-30kGy,得到所述耐老化信号线。
对比例1
本对比例的生产工艺和原料配比与实施例1基本一致,唯有区别的是:护套料未添加线性低密度聚乙烯。
对比例2
本对比例的生产工艺和原料配比与实施例1基本一致,唯有区别的是:护套料未添加热塑性弹性体。
对比例3
本对比例的生产工艺和原料配比与实施例1基本一致,唯有区别的是:未进行辐照交联处理。
性能测试
根据GB T 2951.12-2008《电缆和光缆绝缘和护套材料通用试验方法》对实施例1-3和对比例1-3生产的信号线进行耐老化实验测试,得到如下测试结果:
表1 耐老化试验测试结果
Figure BDA0002810439340000061
根据上表可以看出,本发明所提供的信号线具有较好的耐老化性能,能够适应不同的应用场景,且生产工艺简单、设备成本低。
以上内容仅仅是对本发明构思所作的举例和说明,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,只要不偏离发明的构思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 (6)

1.一种耐老化信号线的生产工艺,其特征在于:包括以下步骤:
(1)线芯处理;选择线径为Φ6.0mm的钢线母线材,脱壳除去氧化层后置于高速连续拉丝机上拉拔形成钢线,将钢线放入线管式回火炉进行高温热处理,再经过酸洗、水洗和抗氧化处理后,将钢线放入线管式回火炉进行高温回火处理,制得线芯;
(2)线芯绞合;选取7根步骤(1)得到的线芯,并将其绞合形成绞合导线;
(3)护套料制备;按照重量份称取以下原料:线性低密度聚乙烯100-120份、热塑性弹性体60-80份、抗氧剂5-15份、抗老化剂2-8份、紫外线吸收剂1-5份、石蜡6-12份、阻燃剂10-20份和相容剂1-9份;将上述原料置于45℃鼓风干燥箱中干燥1h、再混合均匀后,加入密炼机中,熔融共混后冷却至室温,得到护套料;
(4)通过挤塑机将护套料包覆制成的绞合导线,然后进行辐照交联改性处理,得到所述耐老化信号线。
2.根据权利要求1所述的一种耐老化信号线的生产工艺,其特征在于:所述护套料按照重量份包括以下原料:线性低密度聚乙烯110份、热塑性弹性体70份、抗氧剂10份、抗老化剂5份、紫外线吸收剂3份、石蜡9份、阻燃剂15份和相容剂5份。
3.根据权利要求1所述的一种耐老化信号线的生产工艺,其特征在于:所述抗氧剂采用抗氧剂TNP、抗氧剂TPP和抗氧剂1010中的一种或多种的组合。
4.根据权利要求1所述的一种耐老化信号线的生产工艺,其特征在于:所述阻燃剂包括氢氧化铝作为主阻燃剂,磷化铬和有机蒙脱土作为协同阻燃剂,且氢氧化铝、磷化铬和有机蒙脱土按照3:1:1的质量比复配。
5.根据权利要求1所述的一种耐老化信号线的生产工艺,其特征在于:所述相容剂为马来酸酐接枝相容剂。
6.根据权利要求1所述的一种耐老化信号线的生产工艺,其特征在于:所述步骤(4)中辐照交联改性处理采用γ射线进行辐照处理,其处理速度为2-10m/min,单次辐照剂量为20Gy-30kGy。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104725696A (zh) * 2014-11-04 2015-06-24 深圳市欧龙优新材料科技有限公司 一种柔性聚烯烃热塑性弹性材料
CN107573575A (zh) * 2017-09-12 2018-01-12 扬州大学 一种利用热塑性弹性体生产交通信号软电缆的方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104725696A (zh) * 2014-11-04 2015-06-24 深圳市欧龙优新材料科技有限公司 一种柔性聚烯烃热塑性弹性材料
CN107573575A (zh) * 2017-09-12 2018-01-12 扬州大学 一种利用热塑性弹性体生产交通信号软电缆的方法

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