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Insulation pull bar and preparation method thereof

A technology for insulating tie rods and fiber fabrics, which is applied to other household appliances, household components, applications, etc., can solve the problems of complex preparation process, unsatisfactory electrical and mechanical properties of products, single fiber fabric, etc., and achieves good interface integration, excellent The effect of electrical insulation properties and mechanical properties, high reliability

Inactive Publication Date: 2016-12-14
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN 104290335 Chinese patent No. A discloses a production process of insulating tie rods, which discloses a vacuum impregnation method, the preparation process is complicated, the core needs to be heated for many times, and the fiber fabric is single, the electrical performance of the obtained product is low. and mechanical properties are not ideal

Method used

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  • Insulation pull bar and preparation method thereof
  • Insulation pull bar and preparation method thereof
  • Insulation pull bar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The formula of insulating rod is as follows:

[0031]

[0032] Insulation rod preparation method:

[0033] 1) Winding of fiber fabric: Wind polyester fiber fabric and mixed fiber fabric on a mandrel coated with release agent, the winding process is similar to a tubular sandwich structure (polyester fiber fabric + mixed fiber fabric +Polyester fiber fabric), the thickness of the polyester fiber single layer is 1mm. After the fiber fabric is wound, it is put into the mold cavity coated with release agent together with the mandrel, and then the two ends of the mold are fixed.

[0034] 2) Vacuum system pretreatment: connect the static mixing equipment, air compressor, vacuum pump, mold, and resin collector with rigid nylon plastic pipes to ensure high vacuum during the entire dipping process. The heating temperature of the mold is 100°C, and the ratio of epoxy resin, methyltetrahydrophthalic anhydride and modified imidazole is 100:98:2. Vacuum dehumidify the fiber fabric at 100℃...

Embodiment 2

[0040] The formula of insulating rod is as follows:

[0041]

[0042] Insulation rod preparation method:

[0043] 1) Winding of fiber fabric: Wind polyester fiber fabric and mixed fiber fabric on a mandrel coated with release agent, the winding process is similar to a tubular sandwich structure (polyester fiber fabric + mixed fiber fabric +Polyester fiber fabric), the thickness of the polyester fiber single layer is 2mm. After the fiber fabric is wound, it is put into the mold cavity coated with release agent together with the mandrel, and then the two ends of the mold are fixed.

[0044] 2) Vacuum system pretreatment: connect the static mixing equipment, air compressor, vacuum pump, mold, and resin collector with rigid nylon plastic pipes to ensure high vacuum during the entire dipping process. The heating temperature of the mold is 100°C, and the ratio of epoxy resin, methyltetrahydrophthalic anhydride and modified sulfenamide is 100:98:2.5. Vacuum dehumidify the fiber fabric at ...

Embodiment 3

[0050] The formula of insulating rod is as follows:

[0051]

[0052] The manufacturing process of the insulating pull rod:

[0053] 1) Winding of fiber fabric: Wind polyester fiber fabric and mixed fiber fabric on a mandrel coated with release agent, the winding process is similar to a tubular sandwich structure (polyester fiber fabric + mixed fiber fabric +Polyester fiber fabric), the thickness of the polyester fiber single layer is 3mm. After the fiber fabric is wound, it is put into the mold cavity coated with release agent together with the mandrel, and then the two ends of the mold are fixed.

[0054] 2) Vacuum system pretreatment: connect the static mixing equipment, air compressor, vacuum pump, mold, and resin collector with rigid nylon plastic pipes to ensure high vacuum during the entire dipping process. The heating temperature of the mold is 100°C, and the ratio of epoxy resin, methyltetrahydrophthalic anhydride and modified imidazole is 100:98:3. Vacuum dehumidify the f...

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Abstract

The present invention provides an insulation pull bar and a preparation method thereof. The insulation pull bar is formed by compositing a resin system and fabrics, and the resin is an epoxy resin system, a polyurethane resin system or a vinyl resin system; and the fabrics are mixed fabrics of one or two fabrics selected from the group of the aramid fabrics, glass fabrics, polyimide fabrics, basalt fabrics and polyester fabrics. According to the formation of the fabric wrapping, the design of the fiber fabrics weaving and the vacuum dipping technology of high temperature and pressurization, the optimal matching of the viscosity of the resin system and the system vacuum degree is regulated, a good interface combination between the resin and the fabrics is ensured, and the obtain insulation pull bar has good electrical insulation performance and machinery mechanical property.

Description

Technical field [0001] The invention relates to an insulating pull rod, in particular to an insulating pull rod and a preparation method thereof. Background technique [0002] Gas Insulated Switchgear (Gas Insulated Switchgear), abbreviated as GIS, is the primary equipment in substations except for transformers, including circuit breakers, disconnectors, grounding switches, voltage transformers, current transformers, lightning arresters, bus bars, and cable terminals , Inlet and outlet casing, etc. The full name of GIS is Gas Insulated Switchgear, which combines bus bars, circuit breakers, CTs, PTs, isolating switches, and lightning arresters, which is often called switchyard, also called high-voltage power distribution device. There are three types of high-voltage power distribution devices: the first is an air-insulated conventional power distribution device, referred to as AIS. Its bus bar is exposed and directly in contact with the air, and the circuit breaker can be a porc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/02B29C70/48B29C70/54
CPCB29C70/48B29C70/54B29L2031/06C08J5/24C08J2363/00C08J2363/10C08J2375/08C08J2467/00C08J2477/10C08L63/00C08L63/10C08L75/08C08L2205/025C08L2205/03C08L2205/035C08L2205/16H01H3/02C08L77/10C08L67/00C08K7/14C08L79/08C08K7/10
Inventor 杨威张卓尹立邢照亮于凡周源张翀陈新
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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