Manufacturing method for environment-friendly type insulator shell

A production method and technology of insulators, which are applied in the production of environment-friendly insulator shells and insulator shells, can solve the problems of poor weather resistance, toughness, and small shrinkage, and achieve high compactness, good cold resistance, and surface smooth effect

Inactive Publication Date: 2010-09-22
YANGZHOU DONGYU ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a liquid system, epoxy resin has a small shrinkage rate during the curing process, and its cured product has excellent adhesiveness, heat resistance, chemical resistance, mechanical properties, and electrical properties. It is the most widely used thermosetting resin. A larger variety, its disadvantage is poor weather resistance and toughness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 1kg of improved BPA epoxy resin, 2.8kg of silicon micropowder, 1kg of modified liquid carboxylic anhydride, 400g of dark color paste, and 400g of flame retardant according to the weight ratio; Degassing at -1MPa vacuum for 1.5 hours; press the degassed mixed material into the mold, and perform the first curing at 135-145°C for 30 minutes; demoulding, the demoulding The semi-finished product is placed under the condition of 128-135 ℃ for the second curing, and the time is 8 hours ± 10 minutes; the blank after the second curing is finished and made into a product of the designed size.

Embodiment 2

[0026] Weigh 1kg of improved BPA epoxy resin, 2.9kg of silicon micropowder, 1kg of modified liquid carboxylic anhydride, 420g of dark color paste, and 500g of flame retardant according to the weight ratio; Degassing at -1MPa vacuum for 1.8 hours; press the degassed mixture into the mold, and perform the first curing at 135-145°C for 35 minutes; demoulding, the demoulding The semi-finished product is placed under the condition of 128-135 ℃ for the second curing, and the time is 8 hours ± 10 minutes; the blank after the second curing is finished and made into a product of the designed size.

Embodiment 3

[0028] Weigh 1kg of improved BPA epoxy resin, 3.1kg of silicon micropowder, 1kg of modified liquid carboxylic anhydride, 450g of dark color paste, and 600g of flame retardant according to the weight ratio; Degassing at -1MPa vacuum for 2 hours; press the degassed mixture into the mold, and perform the first curing at 135-145°C for 40 minutes; demoulding, the demoulding The semi-finished product is placed under the condition of 128-135 ℃ for the second curing, and the time is 8 hours ± 10 minutes; the blank after the second curing is finished and made into a product of the designed size.

[0029] The composite properties of the environment-friendly insulator prepared in Examples 1-3 are as follows:

[0030] project

[0031] The epoxy resin insulating part made by the method of the present invention has the advantages of high mechanical strength, strong arc resistance, high compactness, smooth surface, good cold resistance, good heat resistance, good electrical insulat...

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PUM

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Abstract

The invention relates to a manufacturing method for an environment-friendly type insulator shell, comprising the following steps: firstly mixing the following components uniformly in parts by weight: 100 parts of modified BPA epoxy resin, 280-310 parts of silica powder, 100 parts of curing agent, 40-45 parts of dark color paste and 40-60 parts of fire retardant, and degassing for 1.5-2 hours under the vacuum degree of 0-minus1 MPa; then injecting the degassed mixture into a mold to conduct the primary curing, and curing for 30-40 minutes under the condition of 140 plus or minus 5 DEG C; demolding, conducting the secondary curing, and curing for 8 hours plus or minus 10 minutes under the condition of 128-135 DEG C; and finally, conducting finish machining on the blank after being cured secondarily. The Epoxy resin insulating component manufactured by the method has the advantages of high mechanical strength, strong arc resistance, high compactness, bright and clean surface, better cold-resistant and heat-resistant properties, good electrical insulating property and the like, is widely applied in the power sector, and mainly plays a role in supporting and insulating.

Description

technical field [0001] The invention relates to a manufacturing method of an insulator shell, in particular to a manufacturing method of an environment-friendly insulator shell, and belongs to the technical field of polymer material processing. Background technique [0002] At present, the porcelain insulator shell traditionally used in our country is gradually losing its dominant position. Due to the high deterioration rate and self-explosion rate of domestic porcelain insulator shells, there is a big gap with the products of famous foreign insulator manufacturers. A large number of porcelain and glass insulator products with lower deterioration rate and self-explosion rate have to rely on imports. In recent years, due to the continuous occurrence of pollution flashover accidents in major power grids, especially the large-scale pollution flashovers in East China, North China, and Northeast China, it has provided a good opportunity for the promotion and application of compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/00
Inventor 王银宝
Owner YANGZHOU DONGYU ELECTRIC
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