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Marine environmental corrosion-resistant cored wire for aluminium-based amorphous nanocrystalline coating

A technology of amorphous nanocrystalline and powder core wire, which is applied in the direction of coating, metal material coating process, fusion spraying, etc., can solve the problems of high cost, single composition, low amorphous content of the coating, etc., and achieve durability Excellent corrosion resistance, high amorphous content, and broad application prospects

Active Publication Date: 2015-02-18
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems of high cost, low amorphous content and single composition of the powder core wire used in the existing electric arc spraying aluminum-based amorphous nanocrystalline coating. The present invention provides a marine environment-resistant Corrosion powder core wire material for aluminum-based amorphous nanocrystalline coating, the powder core wire material prepared by high-speed arc spraying has the characteristics of compact structure, high amorphous content, excellent corrosion resistance, and low cost.

Method used

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  • Marine environmental corrosion-resistant cored wire for aluminium-based amorphous nanocrystalline coating
  • Marine environmental corrosion-resistant cored wire for aluminium-based amorphous nanocrystalline coating
  • Marine environmental corrosion-resistant cored wire for aluminium-based amorphous nanocrystalline coating

Examples

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Embodiment 1

[0023] Example 1: A kind of powder core wire material for marine environment corrosion-resistant aluminum-based amorphous nanocrystalline coating and its preparation method

[0024] A pure aluminum strip of 10×0.3mm (width 10mm, thickness 0.3mm) is selected. Tie it into a U shape first. According to the atomic percentage of each element of the powder core wire material: 10 at. % Si, 3 at. % Ni, 8 at. % Fe, and the balance Al, the ingredients are weighed. Put the taken powder into the powder mixer and mix for 30 minutes, then put the mixed powder into the U-shaped aluminum belt groove, and the filling rate is 34%. Then the U-shaped groove is closed, so that the powder is coated in it, and then the diameter is gradually reduced to Φ2mm through the wire drawing die. The finished wire is wound into a disc shape required by the factory, and after being measured and packaged, it becomes a product that can be shipped. The process parameters used for preparing the coating: the spra...

Embodiment 2

[0026] Example 2: A kind of powder core wire material for marine environment corrosion-resistant aluminum-based amorphous nanocrystalline coating and its preparation method

[0027] A pure aluminum strip of 10×0.3mm (width 10mm, thickness 0.3mm) is selected. Tie it into a U shape first. According to the atomic percentage of each element of the core wire material: 12 at. % Si, 5 at. % Ni, 10 at. % Fe, and the balance Al, the ingredients are weighed. Put the taken powder into the powder mixer and mix for 30 minutes, then put the mixed powder into the U-shaped aluminum belt tank, and the filling rate is 36%. Then the U-shaped groove is closed, so that the powder is coated in it, and then the diameter is gradually reduced to Φ2mm through the wire drawing die. The finished wire is wound into a disc shape required by the factory, and after being measured and packaged, it becomes a product that can be shipped. Process parameters used for preparing the coating: the spraying voltage...

Embodiment 3

[0029] Example 3: A kind of powder core wire material for marine environment corrosion-resistant aluminum-based amorphous nanocrystalline coating and its preparation method

[0030] A pure aluminum strip of 10×0.3mm (width 10mm, thickness 0.3mm) is selected. Tie it into a U shape first. According to the atomic percentage of each element of the powder core wire material: 13 at. % Si, 7 at. % Ni, 12 at. % Fe, and the balance Al, the ingredients are weighed. Put the taken powder into the powder mixer and mix for 30 minutes, then put the mixed powder into the U-shaped aluminum belt tank, and the filling rate is 37%. Then the U-shaped groove is closed, so that the powder is coated in it, and then the diameter is gradually reduced to Φ2mm through the wire drawing die. The finished wire is wound into a disc shape required by the factory, and after being measured and packaged, it becomes a product that can be shipped. Process parameters used for preparing the coating: the spraying ...

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Abstract

The invention discloses a marine environmental corrosion-resistant cored wire for an aluminium-based amorphous nanocrystalline coating. The marine environmental corrosion-resistant cored wire for the aluminium-based amorphous nanocrystalline coating is characterized in that skin of the wire is an aluminium strip, the filling rate of the wire is 34-38%, and the cored wire comprises the following elements by atomic percent: 10-15at% of Si, 3-8at% of Ni, 8-14at% of Fe and the balance of Al. A preparation method of the marine environmental corrosion-resistant cored wire for the aluminium-based amorphous nanocrystalline coating comprises the following steps: weighing and burdening in composition percentage of the elements of the cored wire, putting the elements into a powder mixing machine, and mixing; binding the aluminium strip into a U shape, and adding the mixed powder with the powder adding coefficient of 34-38% into the U-shaped groove; sealing the U-shaped groove, and coating the powder inside; gradually drawing and reducing by virtue of a wire drawing die, wherein the diameter of the wire is 2.0mm finally. The marine environmental corrosion-resistant cored wire for the aluminium-based amorphous nanocrystalline coating has strong amorphous forming capability, the aluminium-based amorphous nanocrystalline coating prepared by adopting a high-speed electric arc spraying technology has excellent corrosion resistance, and long effective corrosion prevention and service life of a steel structure part in the coastal and paralic environments can be obviously prolonged.

Description

[0001] technical field [0002] The invention belongs to the field of thermal spraying in the specialty of material processing engineering, and specifically relates to a powder core wire material for marine environment corrosion-resistant aluminum-based amorphous nanocrystalline coatings. The powder core wire material is mainly used in steel structure components. Corrosion protection of components in coastal and offshore service environments. Background technique [0003] With the intensification of the world energy crisis and the depletion of land resources in the future, the development of marine economy has been included in the development strategies of coastal countries. The core of the marine economy is the development of marine high-tech, and marine engineering equipment is the cornerstone of the marine high-tech industry. Marine engineering equipment requires a large amount of engineering steel. However, in the marine environment, these engineering structural steels ...

Claims

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Application Information

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IPC IPC(8): C23C4/06C23C4/12C22C21/02C22C45/08C23C4/131
CPCC22C45/08
Inventor 程江波刘丹林尽染凌慧王泽华
Owner HOHAI UNIV
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