Preparation method of amorphous coating on metal substrate

A metal matrix, amorphous coating technology, applied in metal material coating process, coating, liquid chemical plating and other directions, can solve the problems of poor anti-corrosion and wear-resistant comprehensive performance, low bonding strength, low compactness, etc. The effect of less coating defects, low cost, and simple and easy preparation method

Active Publication Date: 2022-02-01
NANCHANG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to propose a method for preparing an amorphous coating on a metal substrate to solve the problems of low bonding strength, low compactness, low amorphous content, and corrosion resistance in the method for preparing an amorphous alloy coating on the surface of a metal substrate in the prior art. The problem of poor comprehensive wear resistance

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  • Preparation method of amorphous coating on metal substrate
  • Preparation method of amorphous coating on metal substrate
  • Preparation method of amorphous coating on metal substrate

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Embodiment 1

[0037] like Figure 1 to 5 As shown, embodiments of the present invention provide a method of preparing a metal matrix amorphous coating, including steps S101 to S103:

[0038] S101: Chemical plating of amorphous powders, forming a layer of metal layer after chemically plating, producing an amorphous metal composite powder, the electrical conductivity of the metal layer is 9.93 * 10 6 ~ 6.3 * 10 7 S / m.

[0039] Among them, the amorphous powder can be a different series of amorphous powders, the shape is not limited, and the particle size is 10 to 100 μm.

[0040] The metal layer can take iron, cobalt, chromium, and the like, and the electrical resistivity corresponding to 1.65 * 10 -8 ~ 9.78 * 10 -8 (Ω · m), for high conductivity material.

[0041] The amorphous powder is chemically plated such that the amorphous powder surface forms a layer of metal layer, and the non-alcoholic metal composite powder is prepared, and the electrical conductivity range of the metal layer is 9.93 *...

Embodiment 2

[0066] FE-CO-CR-MO-C-B-Y is prepared at 304 stainless steel surface, and the obtained amorphous powder component is FE-Co-Cr-Mo-C-B-Y, the particle size is 50 μm, which is a spherical powder, and the plating solution is a copper sulfate solution.

[0067] First, 300 to 400 destination FE-based non-crystalline powders were placed in the NaOH solution and then removed, and then poured into the FE-based amorphous powder of the formulated sensitization into the oil, stirred for 30 min, to be powder After completely settlement, filtered, dried, and the FE-based amorphous powder was obtained.

[0068] The formulated activated liquid is poured into the sensitized Fe group, stirred for 10 min, and filtered after the powder is completely settled. After filtering with distilled water, it is activated to activate the FE-based amorphous powder, activating liquid Choose 2g / L AGNO3 solution.

[0069] The activated FE-based amorphous powder was poured into a copper sulfate solution, and the co...

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Abstract

The invention provides a method for preparing an amorphous coating on a metal substrate, comprising the following steps: performing electroless plating on the amorphous powder, so that a metal layer is formed on the surface of the amorphous powder, and an amorphous metal composite powder is obtained. The conductivity range of the metal layer is 9.93*10 6 ~6.3*10 7 s / m; the amorphous metal composite powder is evenly spread on the surface of the metal matrix, and then a layer of metal foil is spread on the surface of the amorphous metal composite powder layer to generate a workpiece to be welded; the resistance of the workpiece to be welded is cladding, so that the amorphous metal composite powder layer is welded on the surface of the metal matrix. Compared with the traditional preparation method of amorphous coating, the crystallization rate of the amorphous coating prepared by the present invention is low, the amorphous content is high, the thermal influence on the matrix is ​​small, the bonding strength of the amorphous powder and the metal matrix is ​​high, and the coating The invention has few defects, good compactness, simple and easy preparation method, less material consumption and low cost, and is convenient for popularization and application in related industrial fields.

Description

Technical field [0001] The present invention relates to the field of amorphous coating, and more particularly to a method of preparing a metal matrix amorphous coating. Background technique [0002] The amorphous alloy has a high strength, high hardness, good toughness and abrasion resistance. At the same time, there is also a good high magnetic permeability and good magnetic properties and other excellent material properties, so they have received extensive attention. Due to the fact that the large amorphous amorphous coatings are currently prepared, the amorphous alloy is expanded by preparation of amorphous coatings on the surface of the metal matrix. [0003] At present, the main method of preparing an amorphous alloy coating on the surface of the metal matrix has laser molten and thermal spray, but there are more or less disadvantages. The coating prepared by the heat spray is low in the binding strength of the metal matrix, and there is a disadvantage such as a large amount...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C23C18/31
CPCC23C24/103C23C18/31
Inventor 范晓飞王文琴王德陈杰潘昌桂陈雅微张诗奇肖晟
Owner NANCHANG UNIV
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