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Method for laying nickel-based alloy coating by supersonic plasma for aluminum alloy

A technology of supersonic plasma and nickel-based alloy, which is applied in the field of aluminum alloy treatment and laying of nickel-based alloy coating, which can solve the problems of affecting performance, low yield strength and tensile strength of the overall structure, environmental pollution, etc.

Active Publication Date: 2021-06-15
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems, the present invention provides a method for laying nickel-based alloy coatings on aluminum alloys by supersonic plasma, which effectively avoids laying nickel-based alloy coatings on the surface of aluminum alloys through such chemical treatment methods in the prior art. The yield strength and tensile strength of the overall structure are not high. During the spraying of nickel-based alloy powder and laying on the surface of aluminum alloy parts, it is time-consuming and labor-intensive to clamp the aluminum alloy parts on the rotating frame. Spraying nickel-based alloy powder and laying The performance is affected, and the powder will be splashed during the spraying of nickel-based alloy powder to form a powder cloud and pollute the environment.

Method used

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  • Method for laying nickel-based alloy coating by supersonic plasma for aluminum alloy
  • Method for laying nickel-based alloy coating by supersonic plasma for aluminum alloy
  • Method for laying nickel-based alloy coating by supersonic plasma for aluminum alloy

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Effect test

Embodiment 1

[0038] The HEPJet system sprays nickel-based alloy powder on the surface of the aluminum alloy part to form a nickel-based alloy coating on the surface of the aluminum alloy part, including:

[0039] Using the HEPJet system, a layer of nickel alloy coating with a thickness of 52 microns is sprayed on the surface of the aluminum alloy parts. After the spraying is completed, the temperature is naturally cooled to room temperature, and the aluminum alloy parts sprayed with the nickel-based alloy coating are obtained; here , the process parameters using the HEPJet system are: the power is 32 kW, and the powder feeding rate is 22 g min-1 , the main steam flow rate is 92L·min -1 , the spray distance is 102mm.

[0040] The aluminum alloy piece that the nickel-based alloy coating that this embodiment is obtained is laid, is the same as the prior art patent number is " CN200810029009.X " and the patent name is " a kind of method for electroless nickel plating on the surface of aluminum...

Embodiment 2

[0046] The HEPJet system sprays nickel-based alloy powder on the surface of the aluminum alloy part to form a nickel-based alloy coating on the surface of the aluminum alloy part, including:

[0047] Using the HEPJet system, spray a layer of nickel alloy coating with a thickness of 55 microns on the surface of the aluminum alloy part. After the spraying is completed, the temperature is naturally cooled to room temperature, and the aluminum alloy part sprayed with the nickel-based alloy coating is obtained; Here, the process parameters using the HEPJet system are: the power is 34 kW, and the powder feeding rate is 25 g min -1 , the main steam flow rate is 95L·min -1 , the spraying distance is 109mm.

[0048] The aluminum alloy piece that the nickel-based alloy coating that this embodiment is obtained is laid, is the same as the prior art patent number is " CN200810029009.X " and the patent name is " a kind of method for electroless nickel plating on the surface of aluminum and...

Embodiment 3

[0053] The HEPJet system sprays nickel-based alloy powder on the surface of the aluminum alloy part to form a nickel-based alloy coating on the surface of the aluminum alloy part, including:

[0054] Using the HEPJet system, a layer of nickel alloy coating with a thickness of 58 microns is sprayed on the surface of the aluminum alloy parts. After the spraying is completed, the temperature is naturally cooled to room temperature, and the aluminum alloy parts sprayed with the nickel-based alloy coating are obtained; here , the process parameters using the HEPJet system are: the power is 36 kW, and the powder feeding rate is 28 g min -1 , the main steam flow rate is 98L·min -1 , the spray distance is 116mm.

[0055] The aluminum alloy piece that the nickel-based alloy coating that this embodiment is obtained is laid, is the same as the prior art patent number is " CN200810029009.X " and the patent name is " a kind of method for electroless nickel plating on the surface of alumin...

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Abstract

A method for laying a nickel-based alloy coating with supersonic plasma for aluminum alloys, including a spray laying process, the spray laying process includes: supporting the aluminum alloy parts to move in a slideway for transfer through a support rod to perform transfer, by This can achieve the transfer of aluminum alloy parts. After the aluminum alloy parts pass the injection position, the clamping parts stop the transfer, and the rotating ring on the top of the support rod is driven by the traction motor to pull the clamp for clamping the aluminum alloy parts to rotate. Combined with other The structure and method effectively avoid the nickel-based alloy coating on the surface of the aluminum alloy through this chemical treatment method in the prior art, so that the yield strength and tensile strength of the overall structure are not high, and the powder of the nickel-based alloy is sprayed on the aluminum alloy. It is time-consuming and labor-intensive to clamp the aluminum alloy parts on the rotating frame during the surface of the alloy parts. It will affect the performance of spraying nickel-based alloy powder and laying. Contamination defects.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy processing, and also belongs to the technical field of laying nickel-based alloy coatings, in particular to a method for laying nickel-based alloy coatings with supersonic plasma for aluminum alloys. Background technique [0002] In addition to the general characteristics of aluminum, aluminum alloys also have specific characteristics of some alloys due to the different types and quantities of alloying elements added. Aluminum alloy has many excellent properties such as low density, low thermal expansion coefficient, high specific stiffness and specific strength, good thermal conductivity, corrosion resistance and good formability, so it is widely used in aerospace, automobiles, home appliances, advanced manufacturing, electric power, etc. It has a wide range of applications in many fields, but in terms of the properties of aluminum alloys, it also has the disadvantages of relatively high h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/04
CPCC23C24/04
Inventor 韩冰源贝绍轶汪伟崔方方杭卫星仇娇慧杜伟徐文文
Owner JIANGSU UNIV OF TECH