Insulation pressure-resistant liner mouth sealing ring and preparation method thereof

A technology of insulation and pressure resistance and sealing ring, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., and can solve the problems of hardness, tensile strength, elongation at break, low heat aging resistance, low heat aging resistance and Compression resistance, intolerance to 50HZ and other issues, to achieve excellent aging resistance and anti-ozone performance, high resistance to compression set, reasonable ratio of raw materials
CN101701628AInactive Publication Date: 2010-05-05QINGDAO TKS SEALING IND
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
QINGDAO TKS SEALING IND
Publication Date
2010-05-05
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an insulation pressure-resistant liner mouth sealing ring which comprises the raw materials in parts by weight: 80-100 parts of ethylene-propylene-diene monomer rubber, 1-4 parts of anti-aging agent, 40-80 parts of carbon black, 3-5 parts of peroxide vulcanizing agent, 0.5-2 parts of accelerating agent, 6-10 parts of esters plasticizer and 1-4 parts of dispersing agent. The invention also discloses a preparation method of the insulation pressure-resistant liner mouth sealing ring. Compared with the prior art, the insulation pressure-resistant liner mouth sealing ring has attractive appearance, medium-high rigidity, high compression set resistance, high tensile strength and elongation at rupture, excellent ageing resistance and ozone resistance, more particularly, properties of insulation and voltage resistance, simple process and more reasonable proportion of the raw materials and enables the product to keep excellent properties and attractive appearance under more rigorous use environment.
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Description

technical field

[0001] The invention relates to a sealing ring and a preparation method thereof, in particular to an insulating and pressure-resistant bile mouth sealing ring and a preparation method thereof. Background technique

[0002] The bile mouth sealing ring is a rubber sealing ring installed between the flange of the heating rod and the inner tank to prevent the leakage of water in the inner tank. The materials used in the existing gallbladder sealing ring have low heat aging resistance and compression resistance; the product cannot withstand 50HZ, a.c 2000V / mm, and breakdown will occur; at the same time, the hardness, tensile strength, tearing The performance of elongation, heat aging resistance, ozone resistance, tear resistance and general acid-base medium resistance is relatively low, and the service life of the product is short. SUMMARY OF THE INVENTION

[0003] The technical problem to be solved by the present invention is to provide an insulating and press...

Claims

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