Anti-aging O-shaped seal ring and production method thereof

Abstract

The invention discloses an anti-aging O-shaped seal ring applied to the technical field of seal rings. The anti-aging O-shaped seal ring comprises a seal ring main body and limiting grooves. The limiting grooves are uniformly formed in the front side face of the seal ring main body in the circumferential direction. A production method of the anti-aging O-shaped seal ring comprises the following steps of producing a metal framework; molding a rubber main body; curing an anti-aging protection layer; and conducting injection molding. The anti-aging O-shaped seal ring is provided with the metal framework, so that rigidity of the seal ring is greatly improved; when the anti-aging O-shaped seal ring is mounted and used, the ring overturning phenomenon is avoided; the anti-aging O-shaped seal ring works more stably and more reliably; the anti-aging protection layer is arranged between a polytetrafluoroethylene seal outer ring and a rubber main body inner ring, the anti-aging O-shaped seal ring can be isolated from external ozone or oxygen, and the performance of the rubber main body can remain unchanged fundamentally during the using period, and the anti-aging O-shaped seal ring is prevented from aging; and the anti-aging O-shaped seal ring is provided with an outer ring groove and an inner ring groove which are used for containing lubricating oil and provided with the limiting grooves at the same time, and the anti-aging O-shaped seal ring can be prevented from rotating in the circumferential direction in the working process so that abrasion generated in the working process of the anti-aging O-shaped seal ring can be reduced.

Description

technical field [0001] The invention relates to the technical field of sealing rings, in particular to an anti-aging O-shaped sealing ring and a production method thereof. Background technique [0002] O-rings can usually be installed on various mechanical equipment, and act as a seal in a static or moving state under specified temperature, pressure, and different liquid and gas media. Various types of seals are widely used in machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastic machinery, agricultural machinery, and various instruments and meters. element. O-rings are mainly used for static sealing and reciprocating motion sealing. When used for rotary motion sealing, it is limited to low-speed rotary sealing devices. The O-ring is generally installed in a groove with a rectangular cross-section on the outer circle or the inner cir...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of anti-aging O-shaped sealing ring and its production method, to solve the conventional sealing ring proposed in the above-mentioned background technology, the rubber body used is easy to oxidize when used for a long time, and the aging resistance is insufficient. And it is not easy to lubricate, and it is easy to be worn during work. In addition, when it is installed and used, due to its insufficient rigidity, it is prone to the problem of turning over, which in turn affects the sealing problem.

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