Method for testing thermal shrinkage performance of silane crosslinked polyethylene cable material

A silane cross-linking and testing method technology, which is applied in the field of cable production, can solve problems such as cable outlet short circuit, uncoordinated ratio, damage, etc., and achieve the effects of ensuring reliability, fine and rigorous testing process, and ensuring stability

Pending Publication Date: 2021-08-17
今化科技(武汉)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a method for testing the thermal shrinkage performance of silane cross-linked polyethylene cable material. The technical problem to be solved by the present invention is: if the contact surface between the insulating layer of the cable and the conductor is too small Or the ratio is not coordinated, so that the insulation layer is easily affected by the temperature rise and shrinks sharply, which leads to short circuit or damage to the cable outlet. Therefore, it is very necessary to produce silane crosslinked polyethylene cables. Thermal shrinkage performance test of vinyl cable materials, in order to analyze the thermal shrinkage performance of silane cross-linked polyethylene cable materials, so as to avoid the problem that the quality of the product is affected

Method used

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  • Method for testing thermal shrinkage performance of silane crosslinked polyethylene cable material

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Experimental program
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Effect test

Embodiment 1

[0020] A thermal shrinkage performance testing method of silane crosslinked polyethylene cable material, comprising the following steps:

[0021] S1. Cut the silane cross-linked cable material to a fixed length, and use an automatic tool to cut it to a fixed length. After the cutting is completed, use a fan to cool the cutting part due to the high temperature generated by the processing, and collect it after the cooling is completed.

[0022] S2. Take out several cut parts of silane cross-linked cable materials as samples, and fix them on the rotating roller with driving components. After the fixation is completed, pour an appropriate amount of clean water into the corresponding processing dish to soak them.

[0023] S3. After soaking for 15 minutes, pour the clear water in the processing dish to the recovery place, then pour an appropriate amount of resin solution into the processing dish, and mix a small amount of higher fatty acid and metal oxide reagents in the resin soluti...

Embodiment 2

[0028] A thermal shrinkage performance testing method of silane crosslinked polyethylene cable material, comprising the following steps:

[0029] S1. Cut the silane cross-linked cable material to a fixed length, and use an automatic tool to cut it to a fixed length. After the cutting is completed, use a fan to cool the cutting part due to the high temperature generated by the processing, and collect it after the cooling is completed.

[0030] S2. Take out several cut parts of silane cross-linked cable materials as samples, and fix them on the rotating roller with driving components. After the fixation is completed, pour an appropriate amount of clean water into the corresponding processing dish to soak them.

[0031] S3. After soaking for 15 minutes, pour the clear water in the processing dish to the recovery place, then pour an appropriate amount of resin solution into the processing dish, and mix a small amount of higher fatty acid and metal oxide reagents in the resin soluti...

Embodiment 3

[0036] A thermal shrinkage performance testing method of silane crosslinked polyethylene cable material, comprising the following steps:

[0037] S1. Cut the silane cross-linked cable material to a fixed length, and use an automatic tool to cut it to a fixed length. After the cutting is completed, use a fan to cool the cutting part due to the high temperature generated by the processing, and collect it after the cooling is completed.

[0038] S2. Take out several cut parts of silane cross-linked cable materials as samples, and fix them on the rotating roller with driving components. After the fixation is completed, pour an appropriate amount of clean water into the corresponding processing dish to soak them.

[0039] S3. After soaking for 15 minutes, pour the clear water in the processing dish to the recovery place, then pour an appropriate amount of resin solution into the processing dish, and mix a small amount of higher fatty acid and metal oxide reagents in the resin soluti...

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Abstract

The invention discloses a method for testing thermal shrinkage performance of a silane crosslinked polyethylene cable material, and particularly relates to the technical field of cable production. Fixed-length cutting is performed on the silane crosslinked polyethylene cable material, so that the influence of specification difference of silane crosslinked polyethylene cable material samples on a test result is reduced, the sample is firstly soaked with clear water, so that the sample adapts to the soaking condition, meanwhile, the influence of the thermal deformation condition during direct heating is reduced, the influence on the silane crosslinked polyethylene cable material due to long-time contact with water is effectively reduced by soaking the sample in a resin solution and pouring a trace of higher fatty acid and a metal oxide reagent into the solution, the stability of the testing process is greatly guaranteed, the whole thermal shrinkage testing process is fine and rigorous enough by performing thermal shrinkage testing on a single sample for multiple times in different time periods and performing centralized comprehensive testing on multiple samples, and the reliability of a testing result is greatly guaranteed.

Description

technical field [0001] The invention relates to the technical field of cable production, more specifically, the invention relates to a method for testing the thermal shrinkage performance of silane crosslinked polyethylene cable material. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has The wire and cable industry is the second largest industry in China after the automobile industry. The satisfaction rate of product varieties and the domestic market share are both over 90%. The continuous and rapid growth of China's economy provides a solid foundation for cable products. Huge market space. Today, both the development scale of the wire and cable industry and the types of cables are extremely impressive. Among them, with the increasing demand for e...

Claims

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Application Information

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IPC IPC(8): G01N25/16G01N1/34
CPCG01N25/16G01N1/34
Inventor 李斌
Owner 今化科技(武汉)有限公司
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