Transformer sealing ring and production method thereof

一种生产方法、变压器的技术，应用在变压器密封领域，能够解决难以满足变压器长期运行需要、变压器油高温及腐蚀作用、橡胶密封胶带使用寿命短等问题，达到绝缘性好、可塑性好、遮盖力高的效果

Inactive Publication Date: 2016-01-20
LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the invention patent with the application number 201010533517.9 authorized on July 4, 2012 provides a method for manufacturing a transformer sealing strip. The interface often breaks due to long-term pressure, and is susceptible to high temperature and corrosion of transformer oil. The service life of ordinary rubber sealing tape is short, which is difficult to meet the long-term operation needs of transformers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A pressure-resistant, wear-resistant and corrosion-resistant transformer sealing ring, made from the following raw materials in proportion by weight: 80 parts of nitrile rubber, 20 parts of carbon black, 35 parts of ceramic micropowder, 10 parts of silicon powder, and 15 parts of manganese powder , 10 parts of high-strength reclaimed rubber, 10 parts of polytetrafluoroethylene, 10 parts of zinc oxide, 10 parts of coumarone resin, 7 parts of rubber oil, 5 parts of clay, 5 parts of vulcanization activator, 1 part of anti-thermal oxygen aging anti-aging agent . Its production method comprises the following steps:

[0018] 1) Blank making: take the nitrile rubber, high-strength reclaimed rubber and coumarone resin of the stated weight parts to synthesize rubber in an internal mixer, and then add other raw materials of the stated weight parts to carry out kneading in an open mill Forming to obtain a ring-shaped blank suitable for the structure of the transformer to be seale...

Embodiment 2

[0023] A pressure-resistant, wear-resistant and corrosion-resistant transformer seal ring, made from the following raw materials in proportion by weight: 85 parts of nitrile rubber, 25 parts of carbon black, 40 parts of ceramic micropowder, 15 parts of silicon powder, and 20 parts of manganese powder 15 parts of high-strength reclaimed rubber, 12 parts of polytetrafluoroethylene, 12 parts of zinc oxide, 12 parts of coumarone resin, 9 parts of rubber oil, 7 parts of clay, 6 parts of vulcanization activator, 3 parts of anti-thermal and oxygen aging anti-aging agent .

[0024] Its production method, with embodiment one.

Embodiment 3

[0026] A pressure-resistant, wear-resistant and corrosion-resistant transformer seal ring, made from the following raw materials in proportion by weight: 88 parts of nitrile rubber, 26 parts of carbon black, 50 parts of ceramic micropowder, 22 parts of silicon powder, and 21 parts of manganese powder 18 parts of high-strength reclaimed rubber, 14 parts of polytetrafluoroethylene, 13 parts of zinc oxide, 12 parts of coumarone resin, 10 parts of rubber oil, 8 parts of clay, 7 parts of vulcanization activator, 4 parts of anti-heat and oxygen aging anti-aging agent .

[0027] Its production method, with embodiment one.

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PUM

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Abstract

The invention discloses a transformer sealing ring and a production method thereof. Nitrile rubber is adopted as a main material, the nitrile rubber, high-tenacity reclaimed rubber and coumarone resin form synthetic rubber. The sealing ring has extremely good oil resistance, abrasion resistance and heat resistance, by means of carbon black, ceramic micro powder, silicon powder, manganese powder, polytetrafluoroethylene, zinc oxide, pottery clay, a vulcanizing activator and an anti-thermo-oxidative-aging agent, the tear resistance, the self-lubricating effect, compression deformation resistance, heat resistance, corrosion resistance, friction resistance and other performance of the sealing ring can be effectively improved, and the service life of the sealing ring is prolonged. A good sealing effect can be protected in the cold environment and in hot summer. Compared with a traditional sealing ring, the service life is effectively prolonged by over one time.

Description

technical field [0001] The invention relates to the technical field of transformer sealing, in particular to a pressure-resistant, wear-resistant and corrosion-resistant transformer sealing ring and a production method thereof. Background technique [0002] Since transformer oil is usually used in the transformer to cool down the temperature of the transformer, the seal between the transformer oil tank and the casing and the transformer cover is very important. Traditional transformer annular rubber seals usually use a strip-shaped sealing rubber row to connect the two The quality of the rubber row and the sealing quality of the rubber row interface directly affect the sealing performance of the transformer. For example, the invention patent with the application number 201010533517.9 authorized on July 4, 2012 provides a method for manufacturing a transformer sealing strip. The interface often breaks due to long-term pressure, and is susceptible to high temperature and corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L17/00C08L27/18C08L45/02C08L91/00C08K13/02C08K3/04C08K3/08C08K3/36C08K3/22C09K3/10
Inventor 智全中陈宏伟曹建奎张亮
Owner LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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