Method for preparing ceramic coating on stainless steel surface, stainless steel connector and application of stainless steel connector

• Main Authors: JIANG XUEXIN, CHENG SHAOLEI
• Format: Patent
• Language: Chinese; English
• Published: 05.03.2024
• 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 relates to the technical field of metal surface ceramization, in particular to a method for preparing a ceramic coating on the surface of stainless steel, a connector and application of the connector. The method comprises the steps that S1, multiple layers of ceramic coating green bodies are prepared on the surface of stainless steel, warm isostatic pressing is conducted after each layer of green body is prepared, a ceramic green body is obtained, and the ceramic green body is formed by sequentially stacking a plurality of green body layers; and S2, carrying out decarburization treatment on the ceramic green body, then carrying out primary sintering in a nitrogen or inert gas atmosphere under a hot isostatic pressing condition, and then carrying out secondary sintering under an oxygen introduction condition. The ceramic coating with high bonding strength, high uniformity and high density is prepared on the surface of the stainless steel through double improvement of the preparation process and c