Insert type polytetrafluoroethylene static pressure dry gas sealing ring for battery ternary material stirring equipment and preparation method and application of insert type polytetrafluoroethylene static pressure dry gas sealing ring

Abstract

The invention discloses an embedded polytetrafluoroethylene static pressure dry gas sealing ring for battery ternary material stirring equipment and a preparation method and application thereof, the embedded polytetrafluoroethylene static pressure dry gas sealing ring comprises two sealing rings, namely a movable ring and a static ring, and the groove type structure of the sealing rings is a rectangular groove type with throttling holes. Static pressure dry gas sealing is introduced into the battery ternary material stirring equipment, the problem that a contact type sealing end face is seriously abraded is solved to a great extent, and the service life of the sealing device is prolonged. Meanwhile, a polytetrafluoroethylene material is adopted to replace traditional sealing ring materials such as silicon carbide and hard alloy, so that the pollution risk of a battery ternary material stirring equipment product is reduced, and meanwhile, the sealing device can be popularized to mechanical production equipment in the industries of food, medicine and the like. In order to prevent the polytetrafluoroethylene static pressure dry gas sealing ring from being softened and deformed due to laser processing and the processing difficulty caused by a too small throttling hole, the sealing ring is processed and manufactured in an embedded processing mode, and the processing precision of the sealing ring can be effectively improved.

Description

technical field [0001] The invention relates to the field of sealing technology, in particular to an inlaid polytetrafluoroethylene static pressure dry gas sealing ring for a battery ternary material stirring device, a preparation method and application thereof. Background technique [0002] At present, in the battery ternary material mixing equipment, due to the characteristics of the large shaft diameter, the traditional dry gas seal is rarely used in this field. This is because the traditional dry gas seal ring generally uses materials such as hard alloy and SiC. It has the advantages of high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, but it is expensive. Therefore, the sealing method of the battery ternary material mixing equipment generally adopts a contact sealing structure, such as a shaft end seal, a silicone rubber elastomer with an interference fit with the shaft drives a pair of rotor plates to rotate when the...

AI Technical Summary

Problems solved by technology

Due to the small diameter of the orifice on the static pressure dry gas sealing ring, and the PTFE will gradually soften when the temperature reaches about 180°C, it is difficult to manufacture by traditional laser processing.

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