Preparation method of high-low-temperature resistant oil seal for reciprocating dynamic sealing

A high and low temperature resistant, dynamic sealing technology, applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of high temperature resistance and low temperature resistance performance of oil seals, improve high temperature and low temperature resistance performance, reasonable configuration, Formulate reasonable and scientific effects
CN109535718AInactive Publication Date: 2019-03-29CHANGSHA JIAYI SEALS
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHA JIAYI SEALS
Publication Date
2019-03-29
Estimated Expiration
Not applicable ยท inactive patent
Patent Text Reader

Abstract

A preparation method of a high-low-temperature resistant oil seal for reciprocating dynamic sealing is disclosed. The method includes S1) weighing 180 parts of silicone rubber, 95 parts of fluororubber, 45 parts of acrylate rubber, 15-25 parts of ethylene-vinylacetate rubber, 12-16 parts of a plasticizer, 8-12 parts of an antioxidant, 9-13 parts of modified hydrotalcite, 4-8 parts of attapulgite clay, 3-5 parts of a nanometer activating agent, 5-7 parts of nanometer zinc oxide, 5-7 parts of nanometer titanium dioxide, 3-5 parts of nanometer silicon carbide, 7-13 parts of aluminium potassium sulfate, 3-7 parts of carbon steel fibers, and the like according to weight parts, and keeping the materials for later use. Components of the oil seal are reasonably arranged and a preparation process is simple. The oil seal prepared can meet application requirements of existing oil seals and has greatly improved resistance to high temperature and resistance to low temperature, and the like.
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Description

technical field

[0001] The invention relates to the technical field of oil seals, in particular to a method for preparing high and low temperature resistant oil seals for reciprocating dynamic seals. Background technique

[0002] Oil seal (oil seal) is the customary title of general seals, simply put, it is the seal of lubricating oil. It is a mechanical element used to seal grease (oil is the most common liquid substance in the transmission system, and also generally refers to the general liquid substance). It isolates the parts that need to be lubricated from the output parts in the transmission parts, so that the lubrication Oil leaks. Seals for static seals and dynamic seals (general reciprocating motion) are called oil seals.

[0003] All parts that have liquid lubricating oil in the running body box and are connected to the outside need oil seals. Some are rubber, some are metal, and most are steel bone rubber, such as crankshaft rear oil seal, gearbox front and rea...

Claims

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