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Anti-corrosion method for marine wind power jacket

A jacket and anti-corrosion technology, applied to artificial islands, underwater structures, coatings, etc., can solve the problems of cladding layer shedding, low bonding force, and easy generation of pores, so as to improve surface quality and seawater resistance Corrosion performance, anti-porosity effect

Inactive Publication Date: 2019-05-10
YANGJIANG HIGH POWER LASER APPLICAITON LAB CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bonding method between the thermal spraying method and the substrate is physical bonding, the bonding force is small, and defects such as pores are prone to occur, causing the cladding layer to fall off and crack.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A high-speed laser cladding powder formula suitable for anti-corrosion of jackets in offshore wind power, the alloy powder for high-speed laser cladding is aluminum bronze alloy powder, and the mass percentage composition is as follows: Al: 10%-15%, Ni: 5%-8%, Fe: 4%-7%, Si: 3.2%-3.8%, Mn: 1.3%-2.0%, Zn: 0.1%-0.4%, Cu balance. In this embodiment, the alloy powder for high-speed laser cladding is aluminum bronze alloy powder, and the mass percentage composition is as follows: Al: 13.5%, Ni: 6.5%, Fe: 5.4%, Si: 3.6%, Mn: 1.6%, Zn: 0.3 %, Cu balance.

[0018] The material of the jacket is E36 (alloy structural steel) or D36 (structural steel for hull), and the diameter of the jacket is 1.6m.

[0019] Preferably, the particle size of the aluminum bronze alloy powder is 300-800 mesh, and the bulk density is 4-5g / cm 3 , fluidity0.85.

[0020] A method for anti-corrosion of an offshore wind power jacket, comprising the following steps:

[0021] 1) Put the aluminum bronze a...

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Abstract

The invention discloses an anti-corrosion method for a marine wind power jacket. The anti-corrosion method for the marine wind power jacket comprises the following steps that aluminum-bronze alloy powder is put into a ball mill to be subjected to ball milling for 2-3 hours, the powder obtained after ball milling is put into a vacuum drying oven to be dried, and the powder is transferred to a rotating disc type powder feeder; the surface of a to-be-clad jacket is ground to remove rust, surface oil contaminants are cleaned with absolute ethyl alcohol, the jacket is installed on a high-speed laser cladding machining machine tool and clamped with a fixture, the positions of light spots and powder spots are adjusted, and 85% or above of energy of laser beams acts on the powder; the powder formsmolten drops before entering a molten pool; a little part of energy acts on the surface of the jacket to form a very shallow molten pool; and cladding is conducted by adopting a disc laser, and coaxial powder feeding is adopted as a powder feeding mode. According to the anti-corrosion method for the marine wind power jacket, the sea water corrosion resistance of the jacket is improved through a high-speed laser cladding technology, then the surface quality of the jacket is improved, and the problems such as pores, cracking, discoloring and bulging are prevented.

Description

technical field [0001] The invention relates to an anti-corrosion method for an offshore wind power jacket. Background technique [0002] Non-renewable resources are becoming increasingly scarce, and the global environment is deteriorating more and more seriously. Green energy will become a key area of ​​future development. my country will build several large-scale offshore wind farms in the future, and the jacket in offshore wind power is a key part of offshore wind power equipment. Improving the corrosion resistance of the jacket is the main problem. [0003] Traditional offshore wind power jackets mainly adopt protective measures such as thermal spraying and coatings. Thermal spraying refers to a spraying device that uses oxygen-acetylene flames, electric arcs, ion arcs, explosive waves, etc. to provide different heat sources to generate high-temperature and high-pressure flames or supersonic flames, and instantly heat the material to be coated to a plastic state or It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C9/01E02B17/00
Inventor 张瑞华屈岳波潘存良栗子林华炳钟路超肖梦智邱桥刘燕红
Owner YANGJIANG HIGH POWER LASER APPLICAITON LAB CO LTD
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