Device and method for reducing underwater resistance of metal component through pulse laser

Abstract

The invention relates to a device and method for reducing underwater resistance of a metal component through pulse laser, the method comprises a walking trolley and a laser frame, a linear guide rail mechanism is arranged on the walking trolley, and the laser frame is movably arranged on the linear guide rail mechanism and can move along the linear guide rail mechanism; a laser head is connected to the laser frame through a three-dimensional adjusting assembly, and the three-dimensional adjusting assembly can adjust the spatial pose of the laser head, so that laser emitted by the laser head irradiates the surface of the metal component, the surface of the metal component is scanned back and forth, and a super-hydrophobic anti-drag microstructure is formed on the surface of the metal component. The laser head is adjusted to scan a to-be-machined area on the surface of the metal component, and the surface of the metal component is etched in cooperation with movement of the walking trolley, a super-hydrophobic composite microstructure is formed on the surface of the metal component, resistance of a ship body in fresh water and seawater is reduced, the advancing speed of the ship body is increased, energy consumption is reduced, and the service life of the ship body is prolonged. The structure is simple, operation is convenient, and environmental pollution is avoided.

Description

technical field [0001] The invention relates to the field of laser technology, and in particular, to a device and method for reducing underwater resistance of metal components by utilizing pulsed laser light. Background technique [0002] When a ship is sailing, the friction between water and the surface of the hull produces a large frictional resistance that prevents the ship from moving forward, which makes it difficult to increase the speed of ships and underwater vehicles. For decades, the speed of cargo ships and passenger ships has been around 24-30 knots, which is difficult to break through. The speed of torpedoes is about 40 knots, and the maximum speed of nuclear submarines does not exceed 27 knots, which makes it difficult to form a deterrent force. For this reason, scholars from all over the world have carried out a lot of research on the drag reduction technology of ships, and have achieved a series of fruitful results. However, since any new or cleaned ship is...

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Problems solved by technology

[0003] At present, the commonly used antifouling paints have problems such as short anti-sea organism adhesion performance and easy to fall off, and they all contain toxic substances: organotin and cuprous oxide, which seriously pollute the marine environment and endanger human safety.

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