This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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 zincoxide, 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 zincoxide, 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, siliconpowder, manganesepowder, polytetrafluoroethylene, zincoxide, 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
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
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