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Process method for preparing NiCr wear-resistant coating on copper surface

A process method and wear-resistant coating technology, which is applied in the direction of metal material coating process, coating, etc., can solve the problems of high toxicity, cumbersome process, high porosity of coating, etc., and achieve the effect of strong binding force

Active Publication Date: 2015-06-10
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies in the existing electrochrome plating technology, such as cumbersome process, high toxicity, high coating porosity, and low bonding strength between the coating and the substrate, the present invention provides an Preparation method of NiCr coating on copper surface

Method used

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  • Process method for preparing NiCr wear-resistant coating on copper surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1): surface pretreatment: use 400-1200 # After grinding step by step with sandpaper, put the sample in acetone solution for ultrasonic-assisted degreasing and cleaning for 3 minutes, then rinse with deionized water and dry it for later use.

[0028] 2): Deposition electrode surface pretreatment: the selected pure Ni (purity greater than 99.9wt%, the same as the following examples) and pure Cr (purity greater than 99.9wt%, the same as the following examples) electrode rods (both diameters are 3mm) Put it in an acetone solution for ultrasonic-assisted degreasing and cleaning for 5 minutes, then rinse with deionized water and dry it for later use.

[0029] 3): The preparation process of the coating: use the selected copper sample as the base material, as the cathode in the deposition process, connect the cathode of the power supply equipment, use the Ni rod as the deposition electrode, set the deposition process parameters, and the deposition voltage is 80V. The frequency...

Embodiment 2

[0032] 1): Surface pretreatment: Use 400-1200 # Sandpaper was used to grind step by step, put the sample in acetone solution for ultrasonic-assisted degreasing and cleaning for 5 minutes, and then rinse with deionized water and dry it for later use.

[0033] 2): Deposition electrode surface pretreatment: the selected pure Ni (purity greater than 99.9wt%, the same as the following examples) and pure Cr (purity greater than 99.9wt%, the same as the following examples) electrode rods (both diameters are 2mm) Put it in an acetone solution for ultrasonic-assisted degreasing and cleaning for 5 minutes, then rinse with deionized water, and dry it for later use.

[0034]3): The preparation process of the coating: use the selected copper sample as the base material, as the cathode during the deposition process, connect the cathode of the power supply equipment, use the Ni rod as the deposition electrode, set the deposition process parameters, the deposition voltage is 90V, and the freq...

Embodiment 3

[0037] 1): surface pretreatment: use 400-1200 # Sandpaper was used to grind step by step, put the sample in acetone solution for ultrasonic-assisted degreasing and cleaning for 5 minutes, and then rinse with deionized water and dry it for later use.

[0038] 2): Deposition electrode surface pretreatment: the selected pure Ni (purity greater than 99.9wt%, the same as the following examples) and pure Cr (purity greater than 99.9wt%, the same as the following examples) electrode rods (both diameters are 3mm) Put it in an acetone solution for ultrasonic-assisted degreasing and cleaning for 5 minutes, then rinse with deionized water, and dry it for later use.

[0039] 3): The preparation process of the coating: use the selected copper sample as the base material, as the cathode in the deposition process, connect the cathode of the power supply equipment, use the Ni rod as the deposition electrode, set the deposition process parameters, and the deposition voltage is 80V. The freque...

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Abstract

The invention relates to the technical field of mental surface processing and especially discloses a process method for preparing a NiCr wear-resistant coating on copper surface. According to the process method, wear-resisting property and corrosion-resisting property of the Cu surface are improved by surface alloying and surface pre-treating processes. The process method mainly comprises the following steps: (1) pre-treating the copper surface; (2) preparing and treating the NiCr deposition electrode; and (3) preparing the wear-resistant Ni / Cr coating. The process method is simple in process, rational in design, convenient to operate and low in processing cost; the process method has easier processes when compared with the vapor depositing and sputtering technologies and is free of problems such as environmental pollutions produced in the plating process. According to the process method, technological parameters are changed in the coating preparation process to obtain coatings of various thicknesses and performances. The NiCr coating prepared by the process method has stronger binding forces to the matrix when compared with coatings prepared by vapor depositing, sputtering and plating technologies. The process method has the characteristics of metallurgical bonding between the coating and the matrix so that good wear-resistant properties can be maintained. Moreover, the coating is compact so that oxidation can be effectively inhibited.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to a process method for preparing a NiCr wear-resistant coating on a copper surface, which improves the wear resistance and corrosion resistance of the Cu surface through surface alloying and surface pretreatment processes. Background technique [0002] In recent years, as people pay more and more attention to environmental protection requirements, the relatively mature electroplating Cu, Ni, Cr and other industries in the past have been more strictly regulated by environmental protection and other departments. Therefore, many electroplating industries are seeking more environmentally friendly and environmentally friendly technology to replace the current The highly polluting electroplating industry; and with the development of science and technology and the rise of the information industry, the requirements for surface treatment and surface finishing of materials are...

Claims

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Application Information

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IPC IPC(8): C23C26/02
CPCC23C26/02
Inventor 潘太军贺云翔许健
Owner CHANGZHOU UNIV
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