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PVC(chlorinated polyvinyl chloride)-C power cable sleeve and production method thereof

A power cable and bushing technology, applied in the field of PVC-C power cable bushing and its production, can solve the problems of inability to meet the requirements of strength and high temperature resistance, inability to meet the requirements of cold resistance, and increased difficulty in installation and transportation, and achieve excellent physical and chemical properties. performance, improved extrusion stability and dimensional stability, resistance to uneven settling

Inactive Publication Date: 2018-03-09
GUANGXI JINTAN PIPE IND TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional PVC-C casings can withstand higher temperatures and have better strength, but in some special environments, they still cannot meet the requirements for strength and high temperature resistance, especially in places with large temperature differences between cold and hot, and cannot meet cold resistance requirements.
Conventional PVC-C casing also has good insulation, but when used for high-voltage power cables, in order to meet the insulation, the thickness has to be increased, which will increase the difficulty of installation and transportation
In addition, the compressive strength of PVC-C casing is poor, and there is still a gap with the construction application requirements

Method used

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  • PVC(chlorinated polyvinyl chloride)-C power cable sleeve and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] S1. Mixing of raw materials: 100 parts of chlorinated polyvinyl chloride resin, 20 parts of nanometer anhydrous calcium sulfate, 2 parts of heat conducting agent, 1 part of composite stabilizer, 0.5 part of methyl methacrylate-butadiene-styrene copolymer , 0.2 parts of polypropylene wax and 0.1 parts of coupling agent according to the weight ratio, placed in the material tank of the high-temperature mixer for high-temperature mixing, the mixing temperature is 115-130 ° C, after mixing for 15-30 minutes, the mixed material Cool to 40-55°C and collect for use;

[0034] S2, granulation: send the materials collected in S1 into a granulator for granulation, and control the temperature of the barrel of the granulator at 175-200°C to obtain pellets;

[0035] S3. Pipe making: Cool the pellets obtained in S2 and put them into the barrel, control the temperature of the barrel to 170-220°C, and the extrusion pressure to 35MPa, and then extrude the material through the die of the e...

Embodiment 2

[0037] S1. Mixing of raw materials: 110 parts of chlorinated polyvinyl chloride resin, 25 parts of nanometer anhydrous calcium sulfate, 3 parts of heat conducting agent, 2 parts of composite stabilizer, 1 part of methyl methacrylate-butadiene-styrene copolymer , 0.5 parts of polypropylene wax and 0.2 parts of coupling agent according to the weight ratio, placed in the material tank of the high-temperature mixer for high-temperature mixing, the mixing temperature is 115-130 ° C, after mixing for 15-30 minutes, the mixed material Cool to 40-55°C and collect for use;

[0038] S2, granulation: send the materials collected in S1 into a granulator for granulation, and control the temperature of the barrel of the granulator at 175-200°C to obtain pellets;

[0039] S3. Pipe making: Cool the pellets obtained in S2 and put them into the barrel, control the temperature of the barrel to 170-220°C, and the extrusion pressure to 40MPa, and then extrude the material through the die of the ex...

Embodiment 3

[0041]S1. Mixing of raw materials: 115 parts of chlorinated polyvinyl chloride resin, 28 parts of nano-anhydrous calcium sulfate, 5 parts of heat conducting agent, 2.5 parts of composite stabilizer, and 1.5 parts of methyl methacrylate-butadiene-styrene copolymer , 0.8 parts of polypropylene wax and 0.4 parts of coupling agent according to the weight ratio, placed in the material tank of the high-temperature mixer for high-temperature mixing, the mixing temperature is 115-130 ° C, after mixing for 15-30 minutes, the mixed material Cool to 40-55°C and collect for use;

[0042] S2, granulation: send the materials collected in S1 into a granulator for granulation, and control the temperature of the barrel of the granulator at 175-200°C to obtain pellets;

[0043] S3. Pipe making: Cool the pellets obtained in S2 and put them into the barrel, control the temperature of the barrel to 170-220°C, and the extrusion pressure to 45MPa, and then extrude the material through the die of the...

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Abstract

The invention relates to a PVC(chlorinated polyvinyl chloride)-C power cable sleeve and a production method thereof. The PVC-C power cable sleeve is characterized by being prepared from the raw materials in parts by weight: 100 to 120 parts of chlorinated polyvinyl chloride resin, 20 to 30 parts of nano anhydrous calcium sulfate, 2 to 6 parts of a heat conduction agent, 1 to 3 parts of a compoundstabilizer, 0.5 to 2.0 parts of a methyl methacrylate-butadiene-styrene copolymer, 0.2 to 1.0 part of polypropylene wax and 0.1 to 0.5 part of a coupling agent. The raw materials of the PVC-C power cable sleeve are simple and easy to obtain, so that the PVC-C power cable sleeve is low in cost, has high-temperature resistance and cold resistance, can be used within a large temperature range, is relatively high in aging resistance, can adapt to high temperature generated by overload short circuit in a use process of a high-voltage cable, has high insulation intensity and volume resistivity, andis high in flexibility, high in compressive strength, resistant to differential settlement and long in product life.

Description

technical field [0001] The invention belongs to the technical field of PVC-C pipes, in particular to a PVC-C power cable casing and a production method thereof. Background technique [0002] Cable protection sleeve is a new type of sleeve material popularized and used in electric power engineering. With the rapid development of power cable buried laying projects, higher requirements are put forward for cable casings. Cable protection casings are usually made of polyethylene PE materials, which are the most commonly used electrical insulation for protecting wires and cables. Tube. However, it is found that PE pipes are easily deformed by external forces, which affects the normal laying of cables in the later stage, and are not suitable for buried power cable sheathing pipes. [0003] PVC-C casing is mainly made of PVC-C resin, which is currently recognized as a green and environmentally friendly product. Its excellent physical and chemical properties are attracting more and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/24C08L33/12C08K13/06C08K9/06C08K3/22C08K3/34C08K3/36C08K7/08H01B3/44
Inventor 梁洪昌
Owner GUANGXI JINTAN PIPE IND TECH CO LTD
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