90-degree corner connector of which four surfaces are coated with skin

Abstract

The application of the invention discloses a 90-degree corner connector of which four surfaces are coated with a skin. The 90-degree corner connector comprises a polytetrafluoroethylene sponge core, and a rubber skin which is coated on the four surfaces of the sponge core, wherein the sponge core comprises a flat first body located in a first plane, as well as a second body and a third body located on a second plane; the first plane is perpendicular to the second plane; the first body is perpendicular to the second body; the third body is connected between the first body and the second body; the sponge core is provided with a main body part of which the section is rectangular, and a convex extending part which convexly extends from the main body part and of which the section is in the shape of an isosceles trapezoid; and the skin comprises a first skin coated on the bottom surface of the main body part, a second skin coated on the side surface of the main body part, a third skin coated on the side surface of the convex extending part, and a fourth skin coated on the top surface of the convex extending part. According to the 90-degree corner connector disclosed by the invention, polytetrafluoroethylene sealing materials are adopted, so that based on that the original good properties are kept, the physical mechanical properties of the 90-degree corner connector are further improved.

Description

technical field [0001] The application belongs to the technical field of ship transportation, and in particular relates to a 90° corner joint with four sides. 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. [0004] The corner joints currently used for the sealing of ship cargo hatch covers are all foame...

AI Technical Summary

Problems solved by technology

Although the sponge corner joint has good elasticity and light weight, it is easy to age, compress and deform, and has a short service life.

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