Reaction kettle surface wear-resistant and corrosion-resistant gradient coating and preparation method thereof

• Main Authors: SU RUICHUN, YAMAIZUMI, LI FAXIANG, ZHANG HONG, XIANG CHUN, HUANG XIEDONG, ZHOU MENGQUAN, LIU XINYANG, CHEN PENG, YANG XIWEN, HUANG QINYUAN, ZHANG XU
• Format: Patent
• Language: Chinese; English
• Published: 08.09.2023
• Subjects: 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; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The invention discloses a reaction kettle surface wear-resistant and corrosion-resistant gradient coating and a preparation method thereof, and belongs to the technical field of wear-resistant coating preparation. The ZrO2 wear-resistant and corrosion-resistant coating is prepared on the surface of a common reaction kettle material by adopting an electric spark deposition technology, and the wear-resistant and corrosion-resistant gradient coating is provided with a plurality of gradient layers with different densities; nickel powder and zirconium dioxide powder are mixed and sintered to prepare an electrode, the mass ratio of the nickel powder to zirconium dioxide and the particle size of the zirconium dioxide powder are controlled, and a wear-resistant and corrosion-resistant gradient coating is formed on the surface of a reaction kettle base material by adopting an electric spark deposition technology; the preparation period is short, the coating is compact, and the wear resistance and the corrosion resista