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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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.
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Property | Measurement | Unit |
Thickness | 5.0 | µm |
Thickness | 10.0 | µm |
Thickness | 7.0 | µm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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