Transformer sealing ring and production method thereof

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...

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.