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Insulating composition, insulating material using the same, umbrella cover and insulator, and manufacturing method

A technology for insulating materials and composite insulators, which is applied in the field of preparing high-voltage composite insulators from compositions including hydrophobic alicyclic epoxy compounds, and can solve problems that affect the safe operation of composite insulators and complex operating conditions

Active Publication Date: 2016-01-27
河北荣森电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Composite insulators operate in a wide geographical range, and different regions have their own geographical particularities, resulting in complex operating conditions. At the same time, there are external uncertainties in the transportation, installation and maintenance of composite insulators, which affect the safe operation of composite insulators

Method used

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  • Insulating composition, insulating material using the same, umbrella cover and insulator, and manufacturing method
  • Insulating composition, insulating material using the same, umbrella cover and insulator, and manufacturing method
  • Insulating composition, insulating material using the same, umbrella cover and insulator, and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0091] A method for preparing a composite insulator, the method comprising the steps of:

[0092] (1) Insert the mandrel 1 into the central hole of the metal fitting 2, and then press it tightly to obtain the mandrel 1-metal fitting 2 composite.

[0093] Preferably, a conventional commercially available crimping machine can be used to squeeze the mandrel 1 and the fitting 2, so that the mandrel 1-the fitting 2 can be compressed.

[0094] When the high-voltage composite insulator is running on the line, it will be subjected to the long-term action of the electromechanical load, and the mechanical strength of the composite insulator will decrease with time. The main reason for this phenomenon is that the mandrel material itself has creep characteristics. At the same time, if the parameter design is unreasonable during the crimping process, the stress in the crimping area between the fittings and the mandrel will be too concentrated, and the mechanical strength of the insulator w...

Embodiment 1

[0125] Prepare the following components: A component, 70kg hexahydrophthalate bisglycidyl ether, and 30kg carboxyl-terminated nitrile rubber toughened bisphenol A diglycidyl ether (the weight of nitrile rubber and bisphenol A diglycidyl ether The ratio is 100:12-18);

[0126] B component, 97.5kg methyl hexahydrophthalic anhydride, and 2.5kg of DMP-30 (2,4,6-tris(dimethylaminomethyl)phenol);

[0127] C component, 310kg silica. Among them, the silicon dioxide consists of 5wt% particles of 38 microns < particle size ≤ 48 microns (300 mesh), 80 wt% of particles of 23 microns < particle size ≤ 38 microns (400 mesh), 10 wt% of 13 microns < particle size ≤ It is prepared by mixing 23 micron (600 mesh) particles and 5wt% particles with a particle size of ≤13 micron (1000 mesh).

[0128] Use AH-type stirring and vacuum mixing device to mix A component, B component and C component and vacuumize until the mixed glue is obtained. The above mixed rubber was injected into the mold by aut...

Embodiment 2-10

[0130] The methods used in Examples 2-10 are basically the same as those in Example 1, the differences are shown in Table 4.

[0131] Table 4

[0132]

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Abstract

The invention provides an insulation composition as well as an insulation material, a shed and an insulator using the same, and a manufacturing method thereof. The composition comprises the following components by weight parts: 100 parts of A, 80-120 parts of B and 200-400 parts of C, wherein the A comprises the components of: cyclohexane dicarboxylic acid diglycidyl ester and flexible epoxy resin in a weight ratio of (70-90): (30-10); the B comprises the components of: a curing agent and an accelerant in a weight ratio of 100: (1-5); and the C comprises the components of: padding. The insulation material composition has excellent hydrophobicity and hydrophobicity transference, high mechanical strength and good wear resistance and external force damage resisting capability and is capable of satisfying requirements on insulator processing and operating.

Description

technical field [0001] The invention relates to an insulating composition and its application in insulators, in particular to a composition comprising a hydrophobic alicyclic epoxy compound and its application to the preparation of high-voltage composite insulators. Background technique [0002] Compared with porcelain insulators, composite insulators are more and more popular in the industry in terms of weight, zero measurement value, and pollution flashover voltage, especially in terms of high pollution flashover voltage. Traditional epoxy resin has excellent electrical and mechanical properties and processing performance, so it can be used as a structural insulating material as an umbrella cover for an insulator. In foreign countries, epoxy resin has been successfully used in the power industry for 40 years. The chemical structure of cycloaliphatic epoxy resin contains saturated alicyclic rings but does not contain benzene nuclei, so it has good UV resistance and weather...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L13/00C08K13/02C08K3/36C08K3/22C08K5/132C08K5/098C08K3/02C08G59/42H01B17/38H01B17/32
Inventor 及荣军张春梅王长明耿卫斌
Owner 河北荣森电气有限公司
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