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Reducing diameter high voltage hollow composite insulator and its manufacturing method

A composite insulator and a manufacturing method of technology, applied in insulators, electrical components, circuits, etc., can solve the problems of poor electrical corrosion and aging resistance of liquid silicone rubber insulation, high center of gravity of straight tubular composite insulators, and easy cracking at bonding places, etc. problems, to achieve uniform laying, reduce the height of the center of gravity and the windward area, and achieve the effect of low cost

Inactive Publication Date: 2007-07-18
JIANGSU SHENMA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these methods is that the single umbrella body is cemented into a whole, and cracks are prone to occur at the bonding place, and the insulation, electric corrosion and aging resistance of liquid silicone rubber are poor.
[0003] The existing straight tube-shaped hollow composite insulator has made great progress compared with the traditional hollow composite insulator, but the center of gravity of the straight tube-shaped composite insulator is relatively high, and the windward capacity is not very good, so it is necessary to improve the existing hollow composite insulator Improvements to improve performance

Method used

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  • Reducing diameter high voltage hollow composite insulator and its manufacturing method
  • Reducing diameter high voltage hollow composite insulator and its manufacturing method

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manufacture example 1

[0038] The umbrella body 3 is made of high-temperature vulcanized silicone rubber, and its components are: 25% methyl vinyl silicone rubber, 30% white carbon black, 30% aluminum hydroxide, 4% silicone oil, and 1% vulcanizing agent.

[0039] Manufacturing steps:

[0040] (1), on the mold core 2a of the winding pipe 2 to be wound, fix the pins 2b, 2c according to the two ends of the axis of the simulated trajectory;

[0041] (2) Uninterrupted glass fiber yarn impregnated with epoxy resin is used to wind the mold core to form a hollow tube, and keep the glass fiber evenly wound and the tension constant;

[0042] (3), the hollow tube that step (2) is made carries out high-temperature curing;

[0043] (4), the hollow tube that step (3) is made carries out machining, makes winding tube 2;

[0044] (5), evenly brush the coupling agent on the outer wall;

[0045] (6), place the winding tube 2 in the mold cavity of the injection machine, and close the mold;

[0046] (7) The rubber ...

manufacture example 2

[0051] The umbrella body 3 is made of high-temperature vulcanized silicone rubber, and its components are: 40% methyl vinyl silicone rubber, 50% white carbon black, 35% aluminum hydroxide, 3% silicone oil, and 1% vulcanizing agent.

[0052] Manufacturing steps:

[0053] (1), on the mold core 2a of the winding pipe 2 to be wound, fix the pins 2b, 2c according to the two ends of the axis of the simulated trajectory;

[0054] (2) Uninterrupted glass fiber yarn impregnated with epoxy resin is used to wind the mold core to form a hollow tube, and keep the glass fiber evenly wound and the tension constant;

[0055] (3), the hollow tube that step (2) is made carries out high-temperature curing;

[0056] (4), the hollow tube that step (3) is made carries out machining, makes winding tube 2;

[0057] (5), evenly brush the coupling agent on the outer wall;

[0058] (6), place the winding tube 2 in the mold cavity of the injection machine, and close the mold;

[0059] (7) The rubber ...

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Abstract

A high voltage hollow composite insulator of diameter variable type is prepared as sticking end connection pieces firmly at two ends of winding tube, setting a unified structure of umbrella body at external of winding tube, setting said winding tube to be tube body in variable diameter, using high temperature silicon sulfide rubber to form a unified structure of umbrella body by injection forming process.

Description

technical field [0001] The invention relates to a hollow composite insulator used in a high-voltage power station in the electric power industry, in particular to a tower-shaped high-voltage hollow composite insulator with variable diameter and a manufacturing method thereof. Background technique [0002] After searching the relevant patent documents, no variable-diameter high-voltage hollow composite insulator with the same structure as the present invention and its manufacturing method have been found. Existing insulators for high-voltage equipment are mainly divided into two categories: porcelain sleeves made of porcelain materials and silicone rubber hollow composite insulators. There are many structural forms of porcelain bushings, such as straight shape, conical shape and waist drum, etc., but the weight of porcelain bushings is heavy, and it is easy to damage other equipment after explosion. It has low pollution resistance and complicated firing process; the hollow co...

Claims

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Application Information

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IPC IPC(8): H01B17/00H01B19/00
Inventor 马斌
Owner JIANGSU SHENMA ELECTRIC CO LTD
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