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Surface treatment methods of marine engineering materials

A technology for marine engineering and surface treatment, applied in the field of marine engineering materials, can solve the problems of destroying the marine ecological environment, short service life of anti-corrosion coatings, poor corrosion resistance, and poor weather resistance, so as to achieve enhanced microbial corrosion resistance and improved antimicrobial resistance. Corrosion performance, effect of improving antibacterial performance

Active Publication Date: 2021-02-23
SHENZHEN INST OF ADVANCED TECH
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  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to provide a surface treatment method for marine engineering materials, which aims to solve the problem of using paint for corrosion protection of metal workpieces in traditional marine engineering. environmental issues

Method used

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  • Surface treatment methods of marine engineering materials
  • Surface treatment methods of marine engineering materials
  • Surface treatment methods of marine engineering materials

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Embodiment 1

[0053]Surface treatment method of marine engineering materials, including the following steps:

[0054]Provides α phase -al particle size of 30 microns -60 micron2O3The ocean engineering metal workpiece to be treated, the alpha phase -al2O3It is dried in an oven at a temperature of 50 ° C; wherein the marine engineering metal workpiece is a workpiece with metal surface of marine engineering;

[0055]Surface bombardment of the marine engineering metal workpiece is used in ultraponic particle bombardment technology, and the surface bombardment process, regulation: the injection carrier gas pressure is 1 MPa-2.5MPa, the bombardment time is 2S-30S / cm2The injection angle is 90 ° (vertical nozzle and sample), the distance from the nozzle and the sample is controlled at 30 mm to 40 mm.

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Abstract

The invention provides a method for surface treatment of marine engineering materials, comprising the following steps: providing hard particles and a metal workpiece of marine engineering to be treated, and drying the hard particles so that the water content of the hard particles< 7.0%; supersonic particle bombardment technology is used to bombard the surface of the marine engineering metal workpiece, and during the surface bombardment process, control: the pressure of the jet carrier gas is 1MPa-2.5MPa, and the bombardment time is 2s-30s / cm 2 .

Description

Technical field[0001]The invention belongs to the technical field of marine engineering materials, and particularly relates to a surface treatment method for marine engineering materials.Background technique[0002]The special environment of marine high-salt and marine microorganisms produced in the high-salt environment makes engineering materials serving in the ocean have higher requirements for corrosion resistance. At present, metal materials with better corrosion resistance commonly used in marine environments include: copper alloys, nickel-based alloys, titanium alloys, and seawater corrosion-resistant steels. Due to the complexity of the marine environment, engineering equipment and facilities in service in the marine environment are facing serious threats of marine microbial corrosion. In particular, the problem of corrosion failure of ships and marine engineering structures caused by accelerated seawater corrosion by marine microbes is particularly prominent. A large number o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D7/06
CPCC21D7/06
Inventor 赵颖刘玉芝周秩仁张欢欢
Owner SHENZHEN INST OF ADVANCED TECH
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