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Metal composite material and coating preparation method for selective electrodeposition

A metal composite material, composite coating technology, applied in coating, electrolytic coating, additive processing and other directions, can solve the problem of inability to prepare metal-inorganic, metal-organic composite materials or coatings, and achieve good bonding. Effect

Active Publication Date: 2021-03-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention mainly aims at the problem that metal-inorganic and metal-organic composite materials or coatings cannot be prepared in the current electrochemical additive manufacturing (selective electrodeposition) metal materials and coating technology, and provides a simple and reliable solution

Method used

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  • Metal composite material and coating preparation method for selective electrodeposition
  • Metal composite material and coating preparation method for selective electrodeposition
  • Metal composite material and coating preparation method for selective electrodeposition

Examples

Experimental program
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Effect test

Embodiment 1

[0021] This embodiment provides a method for preparing a metal composite material and coating for selective electrodeposition, including the following steps:

[0022] Step 1. Configure 250g / L NiSO 4 ·6H 2 The O solution is used as the electrolyte, loaded into the non-spraying electrochemical additive manufacturing equipment, and the deposition area track program on the sample surface is set on the computer.

[0023] Step 2: Take an iron block with a diameter of 14mm and a height of 4mm as a sample. Pretreatment of the sample: polish the surface, then clean the surface with weak hydrochloric acid and weak alkali respectively, and finally clean the residual liquid on the surface with alcohol, and then dry it with nitrogen.

[0024] Step 3. First, isolate the deposition area and non-deposition area on the surface of the iron block, then use a powder feeder to put 0.5g of nano-alumina powder in the deposition area on the surface of the iron block, and use a micro-vibrator to vib...

Embodiment 2

[0031] This embodiment provides a method for preparing a metal composite material and coating for selective electrodeposition, including the following steps:

[0032] Step 1. Configure 240g / L FeSO 4 ·7H 2 The O solution is used as the electrolyte, loaded into the non-spraying electrochemical additive manufacturing equipment, and the deposition area track program on the sample surface is set on the computer.

[0033] Step 2. Take a copper block with a diameter of 15mm and a height of 5mm as a sample. Pretreatment of the sample: use 100-mesh and 400-mesh sandpaper to polish the surface to make the surface have a certain roughness, then clean the surface with weak hydrochloric acid and weak alkali respectively, and finally remove the residual liquid on the surface with alcohol Clean it and dry it with nitrogen.

[0034] Step 3. First, isolate the deposition area and non-deposition area on the surface of the copper block of the sample, then manually weigh 0.5g of nano-silicon n...

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Abstract

The invention discloses a preparation method for a metal composite material and a coating applied to electrodeposition of a selected area. An electrochemical additive manufacture technology is a selected area electrodeposition technology based on dispersion-stacking. The preparation method comprises the following steps: (1) an electrolyte is prepared and put into non-ejection electrochemical additive manufacture equipment, and a deposition area track process of the surface of a sample is set; (2) a pretreatment is conducted on the sample; (3) solid powder is uniformly paved on a deposition area of the surface of the sample; (4) selected area electrodeposition is conducted on the surface of the sample; and (5) washing with deionized water and blowing with a cold wind are conducted after deposition, so that the sample with the composite coating is obtained. Aiming at the problem in a current technology for electrochemical additive manufacture of the selected area electrodeposition metalmaterial and the coating that a metal-inorganic or a metal-organic composite material or a coating cannot be prepared, the invention provides a simple and reliable solution.

Description

technical field [0001] The invention belongs to the field of electrochemical additive manufacturing, and relates to a method for preparing a metal composite material or a coating, in particular to a method for preparing a metal composite material and a coating for selective electrodeposition. Background technique [0002] Additive Manufacturing (AM), that is, 3D printing technology, is a selective processing technology that has emerged in recent years, and has been widely used in high-tech fields such as aerospace, electronic components, and medical equipment. Additive manufacturing technologies that use lasers, electron beams, and arc plasma arcs as heat sources are collectively referred to as high-energy beam additive manufacturing technologies. All over the world, the scientific research and practical application of high-energy beam additive manufacturing of metals, non-metals, and metal-based composite materials has reached a certain scale, and it is currently a relative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/02C25D15/00C25D3/12C25D3/20B33Y70/10B33Y10/00
CPCB33Y10/00B33Y70/00C25D3/12C25D3/20C25D5/02C25D15/00
Inventor 姚正军张帆张莎莎周金堂杜文博杨晨
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS