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Insulating material of electric locomotive transformer output terminal and production process thereof

A technology for output terminals and electric locomotives, applied to organic insulators, transformer/inductor coils/windings/connections, plastic/resin/wax insulators, etc., can solve problems such as low processing accuracy, troublesome assembly, and large space occupation, and achieve Good sealing effect, long service life and low cost

Inactive Publication Date: 2010-06-09
沈阳通用电力设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the outlet terminals of electric locomotive transformers in my country mainly use the insulation structure of the bushing and the epoxy cloth structure. The porcelain bushing structure not only has many components, but also takes up a large The flange seal needs to process the sealing groove, and the processing accuracy of the sealing groove is low, which will directly lead to oil leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The insulating material for the output terminals of electric locomotive transformers is prepared from bisphenol A epoxy resin, polyazelaic anhydride, methyltetraoxyphthalic anhydride, epoxy resin active toughening agent, and 300-mesh silicon micropowder. The weight ratio It is: 5 grams of bisphenol A type epoxy resin, 4 grams of polyazelaic anhydride, 2 grams of methyl tetrahydrophthalic anhydride, 0.8 grams of active toughening agent for epoxy resin, and 12 grams of silicon micropowder 400 mesh.

[0011] Production Process

[0012] Take polyazelaic anhydride, methyltetraoxyphthalic anhydride, and epoxy resin active toughening agent according to the above weight ratio, put them into the batching cylinder and preheat for 5 hours, and the preheating temperature is ±5°C. Add dry SiO in proportion after preheating 2 The micropowder is stirred and poured into a vacuum stirring tank, the vacuum stirring temperature is 100±5°C, the stirring time is 40 minutes, and the vacuum ...

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PUM

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Abstract

The invention relates to insulating material of electric locomotive transformer output material and production process thereof. The insulating material is prepared by comprising the following components in proportion by weight : 4-6g of bisphenol A epoxy resin, 2-3g of polyazelaic polyanhydride, 1.5-3g of methyl tetrahydrophthalic anhydride, 0.5-1g of epoxy resin active toughening agent and 10-15g of 400 meshes of silicon micropowder. The production process comprises the following steps of: putting the materials in a dispensing barrel according to the proportions by weight, preheating for 4-6h with the preheating temperature of + / -5 DEG C, adding dried SiO2 micropowder according to the proportion after preheating, stirring for 30-60min and then pouring into a vacuum stirring tank with the vacuum stirring temperature of 100+ / -5 DEG C and the vacuum degree of -1 MPa, and then pouring to a die. Compared with the prior art, the invention has the advantages of low cost, long service life, good sealing effect, and the like.

Description

technical field [0001] The invention relates to an insulating material, in particular to an insulating material used for an output terminal of an electric locomotive transformer. Background technique [0002] At present, the outlet terminals of transformers for electric locomotives in my country mainly use the insulating structure of the bushing and the structure of the epoxy board. The flange seal needs to process the sealing groove, and the processing accuracy of the sealing groove is low, which will directly lead to oil leakage. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned defects in the insulation structure of the output terminal of the transformer of the electric locomotive, and provide an insulating material for the output terminal of the transformer of the electric locomotive and its production process. [0004] The technical solutions adopted are: [0005] The insulating material for the output terminal...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08K5/09C08K3/36H01B3/40B29C39/38B29C39/44B29B7/28H01F27/32
Inventor 刘猛
Owner 沈阳通用电力设备制造有限公司