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Process for preparing power transmission composite cross arm with electric mark corrosion tolerance and high hydrophobic property

A preparation process, high hydrophobic technology, applied in building types, buildings, towers, etc., can solve the problems of inability to meet the requirements of high-voltage line use, low tracking resistance, etc., and achieve excellent tracking resistance, good hydrophobicity. Sexual, easy-to-use effects

Active Publication Date: 2014-05-21
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing single resin material has low tracking resistance (usually less than 2.5kV), which is far from meeting the actual use requirements of high-voltage lines
At present, domestic research in this field is still blank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation process of the cross-arm of electric tracking corrosion-resistant and highly hydrophobic type power transmission composite material provided in this embodiment, the reinforcement material of the cross-arm mandrel of the electric tracking-resistant composite material adopts 12K high-strength E glass fiber, and the resin adopts high-strength epoxy resin. The ratio of agent and release agent is 1:1.3:0.05.

[0034] First, add the weighed resin raw materials into the mixing tank one by one, stir at a high speed for 60 minutes at a vacuum of 50 Pa, take it out after stirring evenly, and put it into the glue tank. The glass fiber passes through the glue tank at a speed of 60mm / min to obtain a prepreg. The prepreg is converged into the molding mold through the tetrafluoroethylene guide plate. The temperature of the pultrusion molding mold is 200°C, and the high temperature curing temperature is 190°C.

[0035] The matrix resin material for increasing the parach...

Embodiment 2

[0039] This example provides a preparation process for a cross-arm of electric tracking corrosion-resistant and highly hydrophobic composite material for electricity transmission. The cross-arm mandrel of the electric tracking-resistant composite material is reinforced with 24K high-strength E glass fiber, and the resin is high-strength epoxy resin. , Curing agent, release agent ratio is 1:1.6:0.05.

[0040] First, add the weighed resin raw materials into the mixing tank in turn, stir at a medium speed for 30 minutes at a vacuum of 50 Pa, and then stir for 30 minutes at a high speed. After stirring evenly, take it out and add it to the glue tank. The glue tank is preheated. The temperature is 70 ℃, and the glass fiber after 500 ℃ high temperature treatment passes through the glue tank at a speed of 30mm / min to obtain prepreg. The prepreg is converged into the forming mold through the tetrafluoroethylene guide plate. The heat treatment temperature is 150°C.

[0041] The base r...

Embodiment 3

[0044] This embodiment provides a preparation process for a cross-arm of electric tracking corrosion-resistant and highly hydrophobic composite material for electric transmission. The cross-arm mandrel of the electric tracking-resistant composite material is reinforced with 24K high-strength electric corrosion-resistant (ECR) glass fiber, and the resin is made of high-strength The ratio of epoxy resin, resin, curing agent and release agent is 1:1.7:0.1.

[0045] First, add the weighed resin raw materials into the mixing tank in turn, stir at a medium speed for 30 minutes at a vacuum of 50 Pa, and then stir for 30 minutes at a high speed. After stirring evenly, take it out and add it to the glue tank. The glue tank is preheated. The temperature is 60°C, and the glass fiber after 400°C high-temperature treatment passes through the glue tank at a speed of 50mm / min to obtain prepreg. The heat treatment temperature is 170°C.

[0046] The base resin material of the climbing parachute...

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Abstract

The invention relates to a process for preparing a power transmission composite cross arm with electric mark corrosion tolerance and high hydrophobic property, which comprises preparation of a core rod and preparation of a climb increasing parachute cluster. The process is characterized in that: the core rod of the cross arm is a high-strength epoxy resin composite core rod; and the climb increasing parachute cluster is an electric mark tolerant aliphatic epoxy resin climb increasing parachute cluster at the end part of the core rod. The preparation process has the characteristics of simple and quick operation and the like; the prepared insulated cross arm has good hydrophobic property, mechanical property, chemical corrosion resistance, fatigue resistance, fouling and flashing resistance and the like besides excellent electric mark corrosion tolerance, continuous and stable production and physical and chemical stability; and the application range of the composite in the insulating field is further broadened.

Description

[technical field] [0001] The invention relates to the application of a high-performance resin-based composite material in a composite pole tower of a power transmission line, in particular to a preparation technology for a cross-arm of a thermosetting resin-based power transmission composite material capable of resisting electric tracking corrosion and having superhydrophobic ability. [Background technique] [0002] Due to its excellent comprehensive performance, such as high strength, light weight, corrosion resistance, and good insulation, composite material towers have been successfully applied in some European and American power lines. The application of composite material towers makes full use of the characteristics of high mechanical strength and excellent insulation performance of composite materials, which is conducive to the design and implementation of compact lines, effectively saving the corridor width of power lines and further saving land resources, which is of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H12/24
Inventor 兰逢涛陈新张卓刘辉
Owner CHINA ELECTRIC POWER RES INST
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