Medium temperature curing filler putty insulating material

An insulating material and putty technology, which is applied in the field of gap filling insulating materials, can solve the problems of low production efficiency, high energy consumption, and failure to meet the requirements of digital production lines, etc., to achieve high production efficiency, save production energy consumption, shorten time and increase efficiency The effect of technical requirements

Active Publication Date: 2020-12-29
DEYANG XIETONGDA PLASTIC MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The thermal curing temperature of the insulating material for filling the gaps at the transposition of the stator bars of the existing 1000 MW and other giant high-pressure hydro-generators and 1400 MW and other giant high-pressure steam turbine generators is 160 ° C, and the thermal curing time is 1 hour, which consumes a lot of energy. And the production efficiency is low, unable to meet the requirements of the digital production line

Method used

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  • Medium temperature curing filler putty insulating material

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Effect test

Embodiment Construction

[0028] Medium temperature curing putty insulation material, the formula is as follows: g

[0029] Epoxy resin E44 80

[0030] Epoxy resin E12 30

[0031] Tongmaic anhydride 30

[0032] imidazole 2

[0033] Mica powder 600 mesh 150

[0034] Clay 1000 mesh 50.

[0035] Its manufacturing method is as follows:

[0036] 1) According to the material formula, stir and mix epoxy resin E44 and epoxy resin E12 at 100°C, then lower it to 40°C; add tungalic anhydride to the obtained synthetic epoxy resin and stir evenly; raise the temperature to 60°C, continue to stir and observe the color change of the glue solution. After the glue solution is transparent, measure the gelation time at 170°C every 30 minutes, control the gelation time to 5 minutes or less, add imidazole, stop stirring and cool down to room temperature.

[0037] 2) Put mica powder and pottery clay in an electric oven at 120°C for baking and drying for more than 4 hours,

[0038] 3) Pour the above-mentioned synthetic...

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Abstract

The invention relates to an intermediate temperature solidification filling putty insulation material. The problems that a current material is high in thermocuring temperature, long in thermocuring time, relatively high in energy consumption and relatively low in production efficiency can be solved. According to the formula, the insulation material is prepared from the following ingredients in parts by weight: 75-85 parts of epoxy resin E44, 28-32 parts of epoxy resin E12, 19.8-20.2 parts of tung-maleic anhydride, 1.9-2.1 parts of imidazole, 140-160 parts of 600-mesh mica powder and 45-55 parts of 1,000-mesh argil. The insulation material has the advantages of low curing temperature, short curing time, high bonding strength, good insulation performance, high production efficiency and the like.

Description

technical field [0001] The present invention is related to the gap filling insulation material at the transposition position of the stator bar of giant high-pressure hydraulic turbine generators such as 1000MW and giant high-voltage steam turbine generators such as 1400MW. [0002] technical background [0003] The thermal curing temperature of the insulating material for filling the gaps at the transposition of the stator bars of the existing 1000 MW and other giant high-pressure hydro-generators and 1400 MW and other giant high-pressure steam turbine generators is 160 ° C, and the thermal curing time is 1 hour, which consumes a lot of energy. And the production efficiency is low, unable to meet the use requirements of the digital production line. Contents of the invention [0004] The object of the present invention is to provide a medium-temperature curing filling putty insulation material with low heating temperature and short curing time. [0005] The present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08K3/34
CPCC08L63/00C08L2205/02C08K3/34C08K3/346
Inventor 江诚
Owner DEYANG XIETONGDA PLASTIC MATERIALS
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