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Cored wire used for preparing anti-corrosion antifouling self-lubricating functional coating and coating preparing method

A powder core wire material and self-lubricating technology, applied in coating, metal material coating process, fusion spraying, etc., can solve the problems of coating wear, coating failure, marine biofouling, etc., and achieve good corrosion resistance and self-lubricating anti-friction properties, good anti-fouling properties, combined with good results

Active Publication Date: 2018-04-06
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, the coating is often worn by abrasive particles such as water flow and sediment entrained in the water, which greatly damages the corrosion-resistant coating and eventually leads to failure of the coating.
At the same time, the attachment of marine organisms will cause serious marine biofouling problems, accelerate the corrosion of materials or the failure of coatings, and eventually lead to a significant decline in the performance of marine engineering equipment and a serious shortening of life.

Method used

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  • Cored wire used for preparing anti-corrosion antifouling self-lubricating functional coating and coating preparing method
  • Cored wire used for preparing anti-corrosion antifouling self-lubricating functional coating and coating preparing method
  • Cored wire used for preparing anti-corrosion antifouling self-lubricating functional coating and coating preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Preparation of powder core wire:

[0034] The coat of the powder core wire material is an aluminum strip, the width of the aluminum strip is 10mm, and the thickness is 0.3mm. The powder core is a mixed powder of metal pure aluminum, carbon fiber and nano-copper. Among them, the size of the metal pure aluminum is 30-70 μm, and the diameter of the carbon fiber powder is 6 μm , the length is 40-100 μm, the nano-copper powder size is about 300nm, the mass ratio of metal pure aluminum, carbon fiber and nano-copper is 3:4:3, the diameter of the powder core wire is 2mm, and the powder coating rate is 20wt.%.

[0035] (2) Coating preparation:

[0036] Degreasing, derusting and sandblasting are performed on the low-carbon steel base material, and the above-mentioned powder core wire is sprayed onto the surface of the treated low-carbon steel base material by supersonic arc spraying equipment to form a corrosion-resistant, anti-fouling, self-lubricating functional coating Th...

Embodiment 2

[0042] (1) Preparation of powder core wire:

[0043] The coat of the powder core wire material is pure aluminum, the width of the aluminum strip is 8mm, and the thickness is 0.2mm. The powder core is a mixed powder of metallic pure aluminum, molybdenum disulfide and nano-zinc oxide. The size of molybdenum powder is about 10μm, the size of nano-zinc oxide powder is about 200nm, the mass ratio of metallic pure aluminum, molybdenum disulfide and nano-zinc oxide is 3:5:2, the size of powder core wire is 2mm in diameter, and the powder coating rate is 20wt. %.

[0044] (2) Coating preparation:

[0045] Degreasing, derusting and sandblasting are performed on the cast iron base material, and the above powder core wire is sprayed onto the surface of the treated cast iron base material by supersonic arc spraying equipment to form a corrosion-resistant, anti-fouling, self-lubricating functional coating; supersonic arc spraying equipment The spraying process parameters are: current 100...

Embodiment 3

[0049] (1) Preparation of powder core wire:

[0050] The coat of the powder core wire is a nickel-chromium alloy strip with a width of 12mm and a thickness of 0.3mm. The powder core is a mixed powder of metal nickel-chromium alloy powder, carbon fiber and nano-copper, of which the metal nickel-chromium alloy powder is 40-60μm , the carbon fiber powder is 6 μm in diameter, 60-150 μm in length, the size of nano-copper powder is about 300nm, the mass ratio of metal nickel-chromium alloy powder, carbon fiber and nano-copper is 5:3:2, the size of powder core wire is 3mm in diameter, and the powder coating rate 30 wt.%.

[0051] (2) Coating preparation:

[0052] Degreasing, derusting and sandblasting are performed on the low-carbon steel base material, and the above-mentioned powder core wire is sprayed onto the surface of the treated low-carbon steel base material by supersonic arc spraying equipment to form a corrosion-resistant, anti-fouling, self-lubricating functional coating ...

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Abstract

The invention discloses a cored wire used for preparing an anti-corrosion antifouling self-lubricating functional coating. The novel anti-corrosion antifouling self-lubricating cored wire is preparedthrough a mixed material composed of a metal wire coated anti-corrosion metal material, a nanometer antifouling material and a self-lubricating anti-attrition material. The invention further disclosesa method for preparing the anti-corrosion antifouling self-lubricating functional coating with the anti-corrosion antifouling self-lubricating functional cored wire as the raw material. The method comprises the steps that firstly, a base material is subject to pre-treatment; secondly, a hot spraying technology is adopted to spray the cored wire to the pretreated base material surface, and the anti-corrosion antifouling self-lubricating functional coating is obtained. The coating has the excellent corrosion resistance, self-lubricating wear resistance and antifouling properties, and the coating has the good application prospect in the surface protection fields of corrosion resistance, wear resistance, antifouling, and pollution resistance properties of ocean equipment.

Description

technical field [0001] The invention belongs to the field of thermal spraying in material processing engineering, and in particular relates to a powder core wire material for preparing a corrosion-resistant, anti-fouling, self-lubricating functional coating and a coating preparation method. Background technique [0002] With the development of my country's marine industry, its demand has further expanded, especially the rapid development of demand for marine engineering equipment represented by marine engineering and shipbuilding. Correspondingly, the demand for anti-corrosion and other functions of marine engineering equipment is increasing. Performance requirements have also been further increased. How to use new technology to improve the performance of marine engineering equipment, how to reduce the erosion of seawater on steel structures and hulls, and how to reduce biofouling caused by marine organisms, so as to achieve energy saving, emission reduction, energy reduction...

Claims

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Application Information

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IPC IPC(8): C23C4/06C23C4/131C23C4/129
CPCC23C4/06C23C4/129C23C4/131
Inventor 黄晶房立家所新坤龚永锋刘奕李华
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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