Elastic floating body and manufacturing method thereof

Abstract

The present invention discloses one kind of elastic float, and aims at providing one kind of elastic float with high shock strength, high corrosion resistance, easy manufacture, no maintenance, long service life and other advantages and its making process. The elastic float includes float body comprise elastic foamed core and elastic shield. The elastic float is made through making elastic core with foamed polymer material and spraying with high pressure spraying gun the polyurethane, polyurea or their mixture onto the surface of the elastic core to form shield, without interval between the elastic foamed core and the elastic shield. The present invention may be used as ship fender and floating buoy.

Description

Technical field [0001] The invention relates to an elastic floating body and a manufacturing method thereof. Background technique [0002] Navigation beacons are important facilities to ensure the safe navigation and berthing of ships. [0003] For a long time, the navigation mark on the water is mainly made of steel floating bodies, but with the development of economy, the density of ships on the channel has increased, making the steel floating bodies show the following disadvantages: [0004] 1. Due to the high strength and hardness of the steel floating body, ships colliding with it, especially small ships, will cause greater damage; [0005] 2. Due to the poor impact resistance of the steel floating body, the large ship colliding with it will damage it and cause the floating body to sink after flooding. The sunken buoy will threaten the ship's navigation; [0006] 3. Due to the weight of the steel float, it is difficult to transport, put and recover the buoy; [0007] 4. Beca...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the high strength and hardness of the steel floating body, ships colliding with it, especially small ships, will cause greater damage;

[0005] 2. Due to the poor impact resistance of steel buoys, large ships colliding with them will damage them and cause the buoys to sink after entering the water. The sunken buoys will pose a threat to the navigation of ships;

[0006] 3. Due to the weight of the steel buoy, it is difficult to transport, release and recycle the buoy;

[0007] 4. Since the steel floating body is easy to corrode, the maintenance workload such as rust removal, removal of marine deposits, painting, etc. is heavy and the follow-up cost is high

[0009] FRP floating body has the advantages of corrosion resistance, easy coloring and light weight, but the surface of FRP floating body is fragile, its impact resistance is very poor, and its performance of aging resistance and temperature change resistance is also poor.

[0010] Chinese Patent Publication No. CN1046711, published on November 7, 1990, discloses a plastic buoy named "All-plastic navigation buoy". Its floating body has the advantages of corrosion resistance, easy coloring and light weight, but the surface of the plastic floating body is relatively Fragile, its impact resistance is poor, and its performance of aging resistance and temperature change resistance is also poor

[0011] The Chinese Patent Publication No. is CN2414000, and the publication date was January 10, 2001, disclosing a rubber buoy named "The Buoyant Drum Used in Water Navigation Mark Setting", the buoy has the advantages of impact resistance and corrosion resistance, However, the rubber floating body is not easy to color, and it is difficult to form and process

[0012] Moreover, the floating bodies of the above-mentioned FRP buoys, plastic buoys and rubber buoys are filled with foam materials in the shells made of glass fiber reinforced plastics, plastics or rubber. The water absorption rate of the filler is high, so that the floating body has the disadvantages of large buoyancy loss and poor physical properties that are difficult to overcome

[0013] Therefore, there is no floating body in the prior art that has the advantages of impact resistance, corrosion resistance, easy processing, long maintenance-free time, low maintenance cost, and long service life.

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