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Medium-temperature curing type composite soft insulation material

A soft insulation and medium temperature technology, applied in the field of medium temperature curing composite soft insulation materials, can solve the problems of low production efficiency, high energy consumption, inability to meet the requirements of energy saving, cost reduction, time reduction and efficiency improvement, etc.

Inactive Publication Date: 2018-05-01
DEYANG XIETONGDA PLASTIC MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The existing 1000MW and other giant high-pressure hydraulic generators, 1400MW and other giant high-voltage steam turbine generators have stator bar rows and large-scale high-pressure hydraulic generator rotor magnetic pole coils. The insulation materials are made of synthetic resin, alkali-free glass cloth, Alkali glass felt is compounded on a compound machine. When used, the heat curing temperature of the product is 160°C, and the heat curing time is 1 hour. The energy consumption is high and the production efficiency is low. The bonding strength after curing is 5 MPa, which is not enough. Technical requirements for users to save energy, reduce costs, shorten time and increase efficiency

Method used

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  • Medium-temperature curing type composite soft insulation material

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Embodiment Construction

[0026] The non-alkali glass cloth is 0.1mm non-alkali glass cloth, and the non-alkali glass mat is 80g non-alkali glass mat.

[0027] The formula of the synthetic resin is as follows: g

[0028] Epoxy resin E44 340

[0029] Epoxy resin E12 100

[0030] Tongmaic anhydride 60

[0031] Imidazole 5

[0032] Dimethylformamide 5,

[0033] Medium temperature curing composite soft insulating material is made of 0.1mm alkali-free glass cloth 1m 2 , 80g E-glass mat 2m 2 g and the above-mentioned synthetic resin are compounded on a compound machine.

[0034] Its manufacturing method is as follows:

[0035] 1) According to the material formula, mix epoxy resin E44 and epoxy resin E12 at 100°C, mix and dissolve evenly, then lower it to 40°C; add tungalic anhydride to the composite epoxy resin and stir evenly; raise the temperature When the temperature reaches 60°C, continue to stir and observe the color change of the glue. After the glue is transparent, measure the gelation time at...

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Abstract

The invention relates to a medium-temperature curing type composite soft insulation material, which solves the problems of high heating temperature, long curing time, and low adhering strength after curing in the existing material. The medium-temperature curing type composite soft insulation material is prepared by compounding synthetic resin, an alkali-free glass cloth and an alkali-free glass felt on a compounding machine. The synthetic resin is prepared from the following components in parts by weight according to a formula: 330 to 350 parts of epoxy resin E44, 95 to 105 parts of epoxy resin E12, 57 to 63 parts of tung-ma anhydride, 4 to 6 parts of imidazole, and dimethylformamide. The medium-temperature curing type composite soft insulation material has the advantages that the production energy consumption is decreased, the production efficiency is improved, and the product quality is ensured; the purposes of reducing cost and improving efficiency are realized.

Description

technical field [0001] The invention relates to the insulation material between the rows of stator bars of giant high-pressure hydraulic generators such as 1000 MW and the like, and between the rows of stator bars of giant high-voltage turbo-generators such as 1400 MW, and the inter-turn insulation material of rotor magnetic pole coils of large-scale high-pressure hydraulic generators. technical background [0002] The existing 1000MW and other giant high-pressure hydraulic generators, 1400MW and other giant high-voltage steam turbine generators have stator bar rows and large-scale high-pressure hydraulic generator rotor magnetic pole coils. The insulation materials are made of synthetic resin, alkali-free glass cloth, Alkali glass felt is compounded on a compound machine. When used, the heat curing temperature of the product is 160°C, and the heat curing time is 1 hour. The energy consumption is high and the production efficiency is low. The bonding strength after curing is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K7/14
CPCC08L63/00C08L2205/025C08K7/14
Inventor 江诚
Owner DEYANG XIETONGDA PLASTIC MATERIALS
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