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Winding pipe for hollow composite insulator and preparation method of winding pipe for hollow composite insulator

A technology of composite insulators and wound pipes, which is applied in applications, household appliances, tubular objects, etc., can solve the problem that the airtightness, anti-aging performance and mechanical strength of the products cannot meet the requirements of use, and the amount of glue hanging on monofilaments is not enough. Good control, affecting yield and mechanical strength and other issues, to achieve good economic benefits, shorten the production cycle, and good electrical breakdown resistance

Active Publication Date: 2016-03-23
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it adopts the form of monofilament winding during winding, the production time of unit product is too long, and the production efficiency is low; monofilament is easy to produce the problem of broken yarn, which affects the yield and mechanical strength of the final product; at the same time, monofilament The amount of glue in the dipping is not easy to control, often the amount of glue is low, resulting in an increase in the fiber void ratio in the final product, and the air tightness, anti-aging performance and mechanical strength of the product cannot meet the requirements of use, and it also affects its quality. Electrical breakdown resistance

Method used

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  • Winding pipe for hollow composite insulator and preparation method of winding pipe for hollow composite insulator

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Embodiment 1

[0043] The winding tube for hollow composite insulators in this embodiment is formed by winding and curing glass fibers impregnated with epoxy resin glue. The epoxy resin glue is composed of the following raw materials in parts by weight: 80 parts of epoxy resin, methyl tetra 65 parts of hydrophthalic anhydride, 10 parts of propylene oxide butyl ether, 3 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 0.5 part of BYKA530 defoamer; the glue content of the winding tube is 25% (mass percentage). The glass fiber is non-alkali glass fiber non-twisted yarn.

[0044] The preparation method of the wound pipe for the hollow composite insulator of this embodiment, the process flow is as follows figure 1 shown, including the following steps:

[0045] 1) Glue compounding: Take E51 type epoxy resin, methyl tetrahydrophthalic anhydride, propylene oxide butyl ether, 2,4,6-tris(dimethylaminomethyl)phenol and BYKA530 defoamer and mix evenly Prepare epoxy resin glue, heat the epoxy resin glu...

Embodiment 2

[0054] The winding pipe for hollow composite insulators in this embodiment is formed by winding and curing glass fibers impregnated with epoxy resin glue, and the epoxy resin glue is composed of the following raw materials in parts by weight: 100 parts of epoxy resin, methyl tetra 80 parts of hydrophthalic anhydride, 5 parts of propylene oxide butyl ether, 2 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 0.3 parts of BYKA530 defoamer: the glue content of the winding tube is 27% (mass percentage). The glass fiber is an alkali-free glass fiber roving.

[0055] The preparation method of the wound pipe for the hollow composite insulator of this embodiment, the process flow chart is the same as that of Embodiment 1, including the following steps:

[0056] 1) Glue compounding: Take E51 type epoxy resin, methyl tetrahydrophthalic anhydride, propylene oxide butyl ether, 2,4,6-tris(dimethylaminomethyl)phenol and BYKA530 defoamer and mix evenly Prepare epoxy resin glue, heat the epox...

Embodiment 3

[0065] The winding tube for hollow composite insulators in this embodiment is formed by winding and curing glass fibers impregnated with epoxy resin glue. The epoxy resin glue is composed of the following raw materials in parts by weight: 120 parts of epoxy resin, methyl tetra 50 parts of hydrophthalic anhydride, 8 parts of propylene oxide butyl ether, 5 parts of 2,4,6-tris(dimethylaminomethyl)phenol, 0.1 part of BYKA530 defoamer; the glue content of the winding tube is 30% (mass percentage). The glass fiber is an alkali-free glass fiber roving.

[0066] The preparation method of the wound pipe for the hollow composite insulator of this embodiment, the process flow is as follows figure 1 shown, including the following steps:

[0067] 1) Glue compounding: Take E51 type epoxy resin, methyl tetrahydrophthalic anhydride, propylene oxide butyl ether, 2,4,6-tris(dimethylaminomethyl)phenol and BYKA530 defoamer and mix evenly Prepare epoxy resin glue, heat the epoxy resin glue at 5...

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Abstract

The invention discloses a winding pipe for a hollow composite insulator and a preparation method of the winding pipe for the hollow composite insulator. The winding pipe is formed by winding and curing of epoxy resin adhesive impregnated glass fibers. An epoxy resin adhesive is prepared from, by weight, 80-120 parts of epoxy resin, 50-80 parts of a curing agent, 5-10 parts of a diluting agent, 2-5 parts of an accelerating agent and 0.1-0.5 part of a defoaming agent, wherein epoxypropane butyl ether serves as the diluting agent. The content of the epoxy resin adhesive in the winding pipe is 25%-30%. The winding pipe for the hollow composite insulator has the advantages that the epoxy resin adhesive is appropriate in viscosity and fluidity and excellent in performance of adhesion to the glass fibers, multiple strands of the epoxy resin adhesive impregnated glass fibers are easy to coat with the adhesive and can form fiber yarns, and winding efficiency is improved; the winding pipe formed by the cured epoxy resin adhesive and the glass fibers is high in strength, compactness and air tightness and has an excellent insulation performance; since the content of the epoxy resin adhesive in the winding pipe is appropriate, the winding pipe is excellent in mechanical performance and electric breakdown resistance.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to a winding pipe for a hollow composite insulator and a preparation method thereof. Background technique [0002] Insulators are one of the key components in high-voltage power grids and transmission lines, and their performance will directly affect the safe operation of high-voltage power grids. There are three types of high voltage insulators currently used: porcelain insulators, glass insulators and composite insulators. Among them, compared with porcelain insulators and glass insulators, composite insulators have the following advantages: light weight, good shock resistance, strong anti-pollution ability, excellent explosion-proof performance, long service life, good hydrophobicity, wide application range, low maintenance costs, production Low cost, short product delivery time, no zero value, and strong UV resistance, therefore, composite insulators ha...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08K7/14B29C70/34B29L23/00
CPCB29C70/34B29L2023/00C08L63/00C08L83/04C08K7/14
Inventor 陈晓丽李旭培孙中航庞凯歌王永亮
Owner PINGGAO GRP
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