Cabin cover sealing strip

Abstract

The invention discloses a cabin cover sealing strip which comprises a polytetrafluoroethylene sponge core and a wrapper, wherein the wrapper coats the outer side of the sponge core, and comprises a first wrapper, second wrappers and a third wrapper; the first wrapper coats the top surface of the sponge core and is horizontally arranged; the second wrappers coat two opposite sides of the sponge core and are arranged along the vertical direction; the third wrapper coats the bottom surface of the sponge core and is set to be of an arc form; each second wrapper comprises a first upper wrapper with a first thickness and a lower wrapper with a second thickness; the lower wrapper is connected with the bottom end of the upper wrapper; and the first thickness is greater than the second thickness. A polytetrafluoroethylene seal material is adopted; polytetrafluoroethylene has excellent chemical stability and low friction coefficient; and especially the physical and mechanical properties of filling polytetrafluoroethylene are further improved on the basis of keeping the original excellent properties due to the addition of a filling reinforced material, so that the tensile strength of the product greatly exceeds the conventional index requirement of not smaller than 10MPa, and reaches about 13.4MPa.

Description

technical field [0001] The application belongs to the technical field of ship transportation, and in particular relates to a hatch cover sealing 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 a hatch cover seal...

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

Images