Wear-resistant and corrosion-resistant coating on surface of electric power connection fitting and preparation method of wear-resistant and corrosion-resistant coating

• Main Authors: ZHANG QUNLI, LEE BONG-SEO, YAO JIANHUA, CHI YIMING, XIE HUIFEN, ZHOU HAIFEI
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2024
• Subjects: ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a wear-resistant and corrosion-resistant coating on the surface of an electric power connection fitting and a preparation method of the wear-resistant and corrosion-resistant coating. The preparation method comprises the following steps: carrying out drying pretreatment on alloy powder and ceramic powder, wherein the alloy powder comprises three elements of Fe, Ni and Cu; uniformly paving the alloy powder on the surface of a base material of the electric power connection fitting by using a clamp, and adding ceramic powder into a powder feeder; the base material is put into an atmosphere protection box filled with argon, and protection gas is continuously introduced into the atmosphere protection box; parameters of the laser device and parameters of the powder feeder are set, switches of the powder feeder and the laser device are turned on in sequence, ceramic powder is synchronously injected into the molten pool through the powder feeder, laser alloying machining is conducted on the su