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Wear-resistant cable and preparation method thereof

A wear-resistant and cable technology, used in cable/conductor manufacturing, insulated cables, cables, etc., can solve the problems of polyolefin resin prone to aging, poor wear resistance of sheath layer, and cable damage. Good radiation resistance, strong heat resistance, and the effect of improving the overall quality

Inactive Publication Date: 2020-04-10
上海矿山电缆制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above application documents, the flame retardancy, mechanical properties and weather resistance of photovoltaic cables are greatly improved through the combination of inorganic flame retardants and nitrogen-based flame retardants. However, cables are mostly used outdoors and need to be exposed to sunlight for a long time. Olefin resin is not only prone to aging under the sun, but also has poor wear resistance, which leads to poor wear resistance of the sheath layer as a whole. In the process of continuous crawling by birds, the cable will be used in practical applications. are prone to damage, therefore, it is necessary to propose a new solution to solve the above problems

Method used

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  • Wear-resistant cable and preparation method thereof
  • Wear-resistant cable and preparation method thereof
  • Wear-resistant cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: A wear-resistant cable, which sequentially includes an inner conductor, an insulating layer, an outer conductor layer and a sheath layer from the inside to the outside, and the components of the sheath layer and their corresponding parts by weight are shown in Table 1 shown, and prepared by the following steps:

[0047] Step 1, melting the insulating layer, adding the insulating layer material to the twin-screw extruder to fully stir and melt, and controlling the temperature of the barrel at 260°C;

[0048] Step 2, coating the inner conductor, preheat the inner conductor first, the preheating temperature is 87.5°C, then extrude the insulating layer material in the barrel through the extruder, and coat the outer periphery of the inner conductor, and the extrusion temperature is 365°C;

[0049] Step 3, water-cooling and shaping, the inner conductor coated with insulating layer material is first cooled in 12.5°C water for 6.5 minutes, and then cooled at room...

Embodiment 2

[0055] Embodiment 2: A wear-resistant cable, which is different from Embodiment 1 in that it specifically includes the following steps:

[0056] Step 1, melting the insulating layer, adding the insulating layer material to the twin-screw extruder to fully stir and melt, and controlling the temperature of the barrel at 250°C;

[0057] Step 2, coating the inner conductor, preheat the inner conductor first, the preheating temperature is 85°C, then extrude the insulating layer material in the barrel through the extruder, and coat the outer periphery of the inner conductor, and the extrusion temperature is 350°C;

[0058] Step 3, water-cooling and shaping, the inner conductor coated with insulating layer material is first cooled in water at 10°C for 8 minutes, and then cooled at room temperature for 15 minutes, so that the mixed raw materials form a stable insulating layer outside the inner conductor;

[0059] Step 4, wrapping the outer conductor layer, first using silver-plated c...

Embodiment 3

[0063] Embodiment 3: A wear-resistant cable, which is different from Embodiment 1 in that it specifically includes the following steps:

[0064] Step 1, melting the insulating layer, adding the insulating layer material to the twin-screw extruder to fully stir and melt, and controlling the temperature of the barrel at 270°C;

[0065] Step 2, coating the inner conductor, preheat the inner conductor first, the preheating temperature is 90°C, then extrude the insulating layer material in the barrel through the extruder, and coat the outer periphery of the inner conductor, and the extrusion temperature is 380°C;

[0066] Step 3, water-cooled and shaped, the inner conductor coated with insulating layer material was first cooled in 15°C water for 5 minutes, and then cooled at room temperature for 10 minutes, so that the mixed raw materials formed a stable insulating layer outside the inner conductor;

[0067] Step 4, wrapping the outer conductor layer, first using silver-plated cop...

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Abstract

The invention discloses a wear-resistant cable and a preparation method thereof, and relates to the technical field of wires and cables. The problem of poor overall application effect of cables whichcannot maintain good and stable wear resistance in the long-term application process is solved. The wear-resistant cable sequentially comprises an inner conductor, an insulating layer, an outer conductor layer and a sheath layer from inside to outside, and the sheath layer comprises, by weight, 90-100 parts of ETFE, 15-20 parts of silicone resin, 5-10 parts of PFA, 3-5 parts of vinyltrimethoxysilane, 6-12 parts of a plasticizer, 5-10 parts of a nano-filler, 1.5-3.5 parts of a color master batch, 2-5 parts of stearic acid, 3-8 parts of lotus leaf wax, 4-7 parts of boron carbide and 3-5 parts ofbentonite. The wear-resistant cable can keep good and stable wear resistance in a long-term application process, and is not prone to being damaged.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, more specifically, it relates to a wear-resistant cable and a preparation method thereof. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and is often twisted around a center. Insulating covering. [0003] In the Chinese invention patent application document with publication number CN106432894A, a halogen-free and phosphorus-free photovoltaic cable and its preparation method and application are disclosed. The photovoltaic cable includes a conductive core wire, an insulating layer and a sheath layer, and an insulating layer and a sheath layer. The composition of raw materials is as follows: polyolefin resin: 100 parts; ethylene-vinyl acetate copolymer modified by maleic anhydride copolymerization: 15-30 parts; nano-montmorillonite: 30-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08L91/06C08K13/04C08K7/08C08K7/14C08K3/38C08K3/34C08K5/5425H01B7/18H01B7/28H01B13/00H01B13/22H01B13/24
CPCC08L23/0892H01B7/187H01B7/28H01B13/00H01B13/24H01B13/228H01B13/227C08L2205/035C08L2203/202C08K2201/011C08K2201/003C08L83/04C08L91/06C08K13/04C08K7/08C08K7/14C08K3/38C08K3/346C08K5/5425C08K3/34
Inventor 黄海挺
Owner 上海矿山电缆制造有限公司
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