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Composite insulating material and its processing method

A technology of composite insulation and processing method, applied in the direction of organic insulators, chemical instruments and methods, plastic/resin/wax insulators, etc. Efficient effect

Active Publication Date: 2008-07-16
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy glass cloth has good moisture-proof effect, good flexibility and strength, but it is not suitable as an insulating material alone

Method used

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  • Composite insulating material and its processing method

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Embodiment Construction

[0022] As shown in Figure 1, the composite insulation material of the present invention includes a surface layer of epoxy glass cloth 1, an inner layer of NOMEX insulating paper 3, NOMEX insulating paper 3 and epoxy glass cloth 1 are tightly bonded to form an adhesive layer 2, and epoxy glass cloth 1 The thickness is 0.1mm.

[0023] The processing method (referring to Fig. 2) of composite insulating material of the present invention, comprises the following steps:

[0024] (1) Cutting the material, cutting the NOMEX insulating paper 3 of the required size and the epoxy prepreg 4 matching the NOMEX insulating paper sheet;

[0025] (2) Bake NOMEX insulating paper 3 at a temperature of 90-150°C to remove moisture, and the specific temperature can be adjusted according to the effect of the equipment;

[0026] (3) upper mold, the NOMEX insulating paper 3 after dehumidification and the epoxy prepreg 4 are stacked between the steel plates 6 with the release paper 5;

[0027] (4) He...

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Abstract

The invention discloses a composite insulating material and a processing method thereof. The composite insulating material has a double-layer structure formed by a surface layer of epoxy glass-cloth and an inner layer of NOMEX insulated paper which are stuck together. The processing method comprises the following steps that: the moisture-eliminated NOMEX insulated paper with the necessary size and an epoxy prepreg are lapped between a steel plate with release paper, the steel plate is heated and pressurized to ensure that the epoxy prepreg is solidified into the epoxy glass-cloth with the functions of moisture protection and protection, the NOMEX insulated paper and the epoxy glass-cloth are stuck to form the needful composite insulating material. The composite insulating material has the advantages of both the NOMEX insulated paper and the epoxy glass-cloth, that is not only has good insulating performance of the NOMEX insulated paper but also has washable property of the glass-cloth and has the characteristics of good moisture protection and certain bending performance, thereby further improving the insulating and pressure-proof performance of the product.

Description

technical field [0001] The invention relates to a composite insulating material and a processing method thereof, in particular to an insulating material used for surface insulation of busbars. Background technique [0002] NOMEX insulating paper has good stability and excellent high temperature resistance, but one disadvantage of NOMEX paper is that it is easy to absorb moisture and deform, and it is expensive. Generally, NOMEX insulating paper is used for surface insulation of busbars. Because NOMEX insulating paper is easy to absorb moisture, local bubbling and delamination will occur after a period of time, which is more likely to occur in a high-humidity environment, which will affect the insulation performance of the busbar surface. [0003] Epoxy prepreg is an incompletely cured glue-coated sheet material formed by glass cloth impregnated with epoxy glue and baked at a controlled temperature. After reheating, the epoxy glue on the coated sheet can be re-liquefied and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/50B32B7/12B32B37/00
Inventor 王忠民邵国平
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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