High-resilience transformer sealing gasket and preparation method thereof
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A resilience and transformer technology, which is applied in the field of high resilience transformer gasket and its preparation, can solve the problems that the compression resilience cannot meet the sealing requirements, and achieve the best compression resilience, high mechanical strength, and good low temperature resistance.
Inactive Publication Date: 2014-01-15
ANHUI KELIN ELECTRONICS
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Problems solved by technology
With the rapid development of science and technology and modern industry, the existing rubber gasket compression resilience is far from meeting the actual sealing requirements
Method used
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[0012] A high resilience transformer gasket made of the following raw materials by weight (kg): methyl vinyl rubber (N41) 80, polyurethane rubber (AR-200) 20, hexamethyldisilazane 15, gas phase white Carbon black 35, diphenylsilanediol 5, zinc oxide 1.5, stearic acid 2.5, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane 1, diisoperoxide Propylbenzene 0.5, bis-(γ-triethoxysilylpropyl) tetrasulfide 2, antioxidant RD1, antioxidant TNP2, antioxidant 10101.5, coumarone resin 10, nanopotassium feldspar 8, organic bentonite 6. Mica powder 8. Composite filler 4;
[0013] The preparation method of the composite filler is as follows: a. Weigh wollastonite, pyrophyllite and attapulgite in a weight ratio of 3:3:1 and mix them evenly, calcinate at 505°C for 4 hours, and put in hydrochloric acid with a concentration of 15% after cooling to normal temperature Soak in the solution for 2 hours, filter, wash the above-mentioned ore mixture with distilled water until neutral, dry, pulverize, and pas...
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Abstract
The invention discloses a high-resilience transformer sealing gasket and a preparation method thereof. The high-resilience transformer sealing gasket is prepared from 70-80 weight parts of methyl vinyl silicone rubber, 20-30 weight parts of polyurethane rubber, 15-20 weight parts of hexamethyldisilazane, 30-40 weight parts of fumed silica, 4-6 weight parts of diphenylsilanediol, 1-2 weight parts of zinc oxide, 2-3 weight parts of stearic acid, 1-2 weight parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 0.5-1 weight part of dicumyl peroxide, 2-3 weight parts of bis-(gamma-triethoxysilylpropyl)tetrasulfide, 1-2 weight parts of an antiager RD, 2-3 weight parts of an antiager TNP, 1-2 weight parts of an antioxidant 1010, 10-15 weight parts of coumarone resin, 5-10 weight parts of nanometer potassium feldspar, 4-8 weight parts of organobentonite, 6-12 weight parts of mica powder and 3-5 weight parts of a composite filling material. The high-resilience transformer sealing gasket is soft and smooth, has no toxicity and smell, has excellent high temperature and low temperature resistance, excellent compression resilience and high mechanical strength, can be used at a temperature of -70-250 DEG C for a long time, and does not age, deform and crack.
Description
technical field [0001] The invention relates to a high resilience transformer sealing gasket and a preparation method thereof, belonging to the technical field of sealing materials. Background technique [0002] The gasket is an important part of the transformer, which plays the role of sealing and preventing oil leakage of the transformer. With the rapid development of science and technology and modern industry, the compression resilience of existing rubber gaskets is far from meeting the actual sealing requirements. Therefore research and develop a kind of highly elastic rubber gasket has become the task of top priority. Contents of the invention [0003] The object of the present invention is to provide a high-resilience transformer gasket and a preparation method thereof, so as to improve the compression resilience of the transformer gasket. [0004] The technical scheme that the present invention adopts is as follows: [0005] A high resilience transformer gasket, ...
Claims
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