WDZB-BYN low-smoke halogen-free nylon power line and preparation method thereof

A technology of WDZB-BYN and power cords, which is applied in the direction of cable/conductor manufacturing, circuits, insulated cables, etc., and can solve power cord wear resistance, corrosion resistance, aging resistance, low weather resistance, thermal stability and heat resistance Low shrinkage effect, short service life of the power cord, etc., to achieve good environmental protection, reduce potential short-circuit accidents, and excellent oil resistance

Inactive Publication Date: 2016-11-09
ZHEJIANG QINSHAN CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a WDZB-BYN low-smoke halogen-free nylon power cord and its preparation method, which aims to solve the problems of power cord wear resistance, corrosion resistance, and corrosion resistance in the prior art. The aging resistance and weather resistance are not high, the thermal stability and heat shrinkage resistance are low, and the environmental protection performance is poor, which leads to the technical problem of short service life of the power cord

Method used

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  • WDZB-BYN low-smoke halogen-free nylon power line and preparation method thereof
  • WDZB-BYN low-smoke halogen-free nylon power line and preparation method thereof

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Experimental program
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Embodiment 1

[0030] The conductor 1 of a WDZB-BYN low-smoke halogen-free nylon power cord provided in this embodiment 1 is formed by twisting a single or several conductor wires 11, and its preparation method includes the following steps:

[0031] Step 1. Preparing conductors: drawing and annealing copper monofilaments to obtain thin conductor wires 11 , and tightly twisting a single or several conductor wires 11 into a conductor 1 by bundle twisting.

[0032] Step 2. Double-layer co-extrusion: Two extruders are used to feed low-smoke halogen-free polyolefin insulation material and nylon sheath material into their respective extruders, and then extrude and coat the conductor 1 at the same time after melting. Also, get the power cord.

[0033] Wherein, the two extruders adopt the same non-adjustable eccentric head, and the two extruders adopt the extruder of the double-layer co-extrusion mold.

[0034] Furthermore, the heating of the non-adjustable eccentric head is two-stage, one section ...

Embodiment 2

[0039] The conductor 1 of a WDZB-BYN low-smoke halogen-free nylon power cord of the second embodiment is formed by twisting a single or several conductor wires 11, and its preparation method includes the following steps:

[0040] Step 1. Preparing conductors: drawing and annealing copper monofilaments to obtain thin conductor wires 11 , and twisting a single or several conductor wires 11 into a conductor 1 by bundle twisting.

[0041] Step 2, secondary extrusion molding:

[0042] a) Firstly, on an extruder, the low-smoke halogen-free polyolefin insulating material is fed into the extruder, melted and extruded on the outer layer of the conductor 1 to obtain the insulating layer 2 .

[0043] b) Then, in another extruder, the nylon sheath material is fed into the extruder, and after being melted, it is extruded on the outer layer of the insulating layer 2 with printed characters to obtain the sheath 3 .

[0044] Wherein, before the end of step a) and the beginning of step b), af...

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Abstract

The invention discloses a WDZB-BYN low-smoke halogen-free nylon power line which comprises a conductor, an insulating layer and a sheath. One or a plurality of conductor wires are stranded to form the conductor. The conductor formed by one or a plurality of conductor wires is externally covered by the insulating layer. The insulating layer is externally covered by the sheath. The insulating layer is a low-smoke halogen-free insulating layer. The sheath is a nylon sheath. The invention further provides a preparation method of the WDZB-BYN low-smoke halogen-free nylon power line. By means of conductor preparation, double-layer co-extrusion, printing processing and packaging storage, the WDZB-BYN low-smoke halogen-free nylon power line is obtained, the wearing resistance is good, and the risk of latent short accidents is effectively reduced; the oil resistance and the liquefied gas and gas corrosion resistance are good, and the reliability and the safety performance are effectively improved; the thermal stability and the thermal contraction resistance are good, the mechanical strength is relatively high, and the wearing resistance and other physical and chemical performance are good, and the service lifetime is relatively long; and the low-smoke halogen-free insulating layer and the nylon sheath meet Rosh standards, and the environment protection property is good.

Description

【Technical field】 [0001] The invention relates to the technical field of cable power cords, in particular to a WDZB-BYN low-smoke halogen-free nylon power cord and a preparation method thereof. 【Background technique】 [0002] Power cords are wires that carry electricity. Usually the way of current transmission is point-to-point transmission. Power cords can be divided into AC power cords and DC power cords according to their usage. The structure of the power cord is mainly an outer sheath, an inner sheath, and a conductor. Common transmission conductors include copper and aluminum wires. The outer sheath, also known as the protective sheath, is the outermost sheath of the power cord. This outer sheath plays a role in protecting the power cord. The missing intermediate structure part, the main function of the insulating sheath is insulation, as the name implies, to ensure the safety of the power line, so that there will be no leakage between the copper wire and the air, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B7/02H01B7/17H01B13/00H01B13/14H01B13/24
CPCH01B9/006H01B7/0275H01B7/17H01B13/00H01B13/14H01B13/24
Inventor 王勤伟王小瑾许雪章张韩芬
Owner ZHEJIANG QINSHAN CABLE
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