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Cored wire for preparing Al-Ni-Zr-Cr amorphous coating by utilizing high velocity arc spraying technology

A technology of powder core wire material and arc spraying, which is applied in the direction of coating, metal material coating process, fusion spraying, etc., can solve the problems of affecting the anti-corrosion performance of the coating, low amorphous content, expensive preparation cost, etc., and achieve excellent Anti-corrosion and wear-resistant functions, fewer alloy components, and controllable shape properties

Active Publication Date: 2017-06-13
ACADEMY OF ARMORED FORCES ENG PLA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, Al-Ni-Mm-Co (Chinese patent application number 201310260182.1), Al-Ni-Y-Co ("Acta Metallica" 2012, 48 (3) 289-297) and other amorphous and nanocrystalline coating materials The powder core wire contains rare earth elements, which makes its preparation cost relatively expensive, and the formed coating has a relatively low amorphous content and a high crystal content, so it cannot reflect the performance advantages of the amorphous coating; Al-Si -Ni-Fe (Chinese patent application number 201410625058.5) is added to the amorphous nanocrystalline coating with Fe element with poor corrosion resistance, which seriously affects the overall anti-corrosion performance of the coating

Method used

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  • Cored wire for preparing Al-Ni-Zr-Cr amorphous coating by utilizing high velocity arc spraying technology
  • Cored wire for preparing Al-Ni-Zr-Cr amorphous coating by utilizing high velocity arc spraying technology
  • Cored wire for preparing Al-Ni-Zr-Cr amorphous coating by utilizing high velocity arc spraying technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A kind of powder core wire material and preparation method thereof for the preparation of Al-Ni-Zr-Cr amorphous coating by high-velocity arc spraying technology

[0025] First roll a 10×0.4 (width 10mm, thickness 0.4mm) pure aluminum strip into a U shape, and then according to the mass percentage of powder core wire: 16% Ni, 8% Zr, 8% Cr, weigh For re-batching, put the obtained powder into the powder mixer and mix it for half an hour, then add it to the U-shaped aluminum tape tank, the filling rate is 32%, and then close the U-shaped aluminum tape tank to make the powder cover it, and finally pass multiple times. After the drawing wire is reduced to a diameter of 2.0mm, it is wound into a disc shape, and after being measured and packaged, it becomes a product that can be shipped.

[0026] With the powder core wire material prepared in Example 1 as material, the spraying process parameters used to prepare the amorphous coating by high-speed arc spraying tec...

Embodiment 2

[0028] Embodiment 2: A kind of powder core wire material and preparation method thereof for the preparation of Al-Ni-Zr-Cr amorphous coating by high-velocity arc spraying technology

[0029] First roll a 10×0.4 (width 10mm, thickness 0.4mm) pure aluminum strip into a U shape, and then weigh the ingredients according to the mass percentage of the powder core wire material powder core: 24% Ni, 12% Zr, and put Put the powder into the powder mixing machine and mix it for half an hour, then put it into the U-shaped aluminum tape groove, the filling rate is 36%, then close the U-shaped aluminum tape groove to coat the powder, and finally reduce the diameter by multi-channel wire drawing After reaching a diameter of 2.0 mm, it is wound into a disc shape, and after being measured and packaged, it becomes a product that can be shipped.

[0030] Taking the powder core wire material prepared in Example 2 as material, the spraying process parameters used to prepare the amorphous coating b...

Embodiment 3

[0032] Embodiment 3: A kind of powder core wire material and preparation method thereof for the preparation of Al-Ni-Zr-Cr amorphous coating by high-velocity arc spraying technology

[0033] First roll a 10×0.4 (width 10mm, thickness 0.4mm) pure aluminum strip into a U shape, and then according to the mass percentage of powder core wire: 20% Ni, 14% Zr, 6% Cr, weigh For re-batching, put the obtained powder into the powder mixer and mix for half an hour, then add it to the U-shaped aluminum tape groove, the filling rate is 40%, then close the U-shaped aluminum tape groove to coat the powder, and finally After the drawing wire is reduced to a diameter of 2.0mm, it is wound into a disc shape, and after being measured and packaged, it becomes a product that can be shipped.

[0034] With the powder core wire material prepared in Example 3 as material, the spraying process parameters used for preparing the amorphous coating by high-speed arc spraying technology are: spraying current...

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Abstract

The invention discloses a cored wire for preparing an Al-Ni-Zr-Cr amorphous coating by utilizing a high velocity arc spraying technology. The cored wire is characterized in that the skin of the cored wire is a pure aluminum belt, wherein the mass percentage of a core accounting for the wire is 32 to 40 percent; the core is prepared from the following components in percentage by mass: 16 to 24 percent of Ni, 8 to 14 percent of Zr and 0 to 8 percent of Cr. The preparation method comprises the following steps: firstly, rolling the pure aluminum belt into a U shape; secondly, weighing accessories according to the mass percentage of all the components of the core, and putting the weighed powder into a powder mixing machine for mixing; thirdly, adding uniformly-mixed powder into a U-shaped aluminum belt groove according to a powder adding coefficient of 32 to 40 percent, sealing the U-shaped aluminum belt groove and enabling the powder to be accommodated in the U-shaped aluminum belt groove; finally, reducing the diameter by multiple paths of wire drawing until the cored wire with the diameter of 2.0mm is obtained. The cored wire has relatively high amorphous forming ability; the coating prepared by adopting the high velocity arc spraying technology has the advantages of relatively high content, relatively high hardness and double functions of corrosion resistance and wear resistance, and can provide effective surface protection for steel structural components and light alloy parts of marine equipment.

Description

technical field [0001] The invention belongs to the field of thermal spraying in the professional surface treatment technology of material processing engineering, and relates to a powder core wire material used for preparing Al-Ni-Zr-Cr amorphous coating by high-speed arc spraying technology, which is mainly used in marine corrosion Surface protection of steel structural parts and light alloy parts of equipment serving in the environment. Background technique [0002] Aluminum-based amorphous alloys have the advantages of excellent corrosion resistance, good toughness, high strength, etc., and have become one of the focuses of researchers in this century. Amorphous has no defects such as grain boundaries, which can hinder the erosion of corrosive media, and the amorphous material itself has high strength and hardness, which endows the amorphous material with excellent comprehensive properties. When the amorphous part is nanocrystallized, the precipitated nanoparticles can f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/131C23C4/073
Inventor 梁秀兵张志彬徐滨士陈永雄胡振峰蔡志海仝永刚商俊超范建文漆培部
Owner ACADEMY OF ARMORED FORCES ENG PLA
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