Oil-tight straight strip

Abstract

The invention discloses an oil-tight straight strip which comprises a polytetrafluoroethylene sponge core and rubber skin wrapping the outer side of the sponge core. The sponge core comprises a first body with the first width, and a second body with the second width located above the first body. The second width is larger than the first width. The section of the first body is rectangular. Arc-shaped transition is achieved on the two lateral sides of the bottom end of the first body. The second body has a horizontal top face. The two lateral sides of the top face are connected with the side wall of the second body through an oblique guide face. Curved surface transition is achieved between the side wall of the first body and the side wall of the second body. By means of a polytetrafluoroethylene sealing material, polytetrafluoroethylene has extremely excellent chemical stability and quite low friction coefficient; specially for filling polytetrafluoroethylene, filling reinforced material is added, so the physical and mechanical performance are further improved on the basis of keeping original excellent performance.

Description

technical field [0001] The application belongs to the technical field of ship transportation, in particular to an oil-tight straight strip. Background technique [0002] Among polymer materials, rubber is widely used in shock-absorbing products because of its good mechanical properties and high resilience, and its elastic modulus is very small. But in general, the mechanical strength of rubber materials is low, the wear resistance is poor, the friction resistance generated during movement is large, and there are certain limitations in the resistance to media. [0003] Many places on existing cargo ships need to use rubber parts to play the role of shock absorption, etc., and the existing rubber parts for cargo ships, due to poor salt spray resistance, cause layer blistering or aging due to hard and brittle surfaces, resulting in huge damage. Security risks. Contents of the invention [0004] The object of the present invention is to provide an oil-tight straight strip to...

AI Technical Summary

Problems solved by technology

But in general, the mechanical strength of rubber materials is low, the wear resistance is poor, the friction resistance generated during movement is large, and there are certain limitations in the resistance to media.

[0003] Many places on existing cargo ships need to use rubber parts to play the role of shock absorption, etc., and the existing rubber parts for cargo ships, due to poor salt spray resistance, cause layer blistering or aging due to hard and brittle surfaces, resulting in huge damage. Security risks

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