Rose gold coating of high-speed steel tool and preparation method of rose gold coating

• Main Authors: ZHOU HUI, XIAN CHANGWEI, LUO SHUILIAN, XU JIAN, YANG LA MAOCAO, JIANG ZHAO, ZHANG TENGFEI, MA ZHANJI
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2024
• 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 provides a rose gold coating of a high-speed steel cutter, which comprises a Ti layer and a Ti (C, N) layer. The LAB values of the colors of the rose gold coating are L61, a13 and b17, the thickness is 1-1.5 microns, the surface roughness is smaller than 50 nm, the hardness is 30-35 GPa, the adhesive force is larger than 60 N, and the rose gold coating has excellent wear resistance. According to the method, a vacuum arc ion plating method is adopted, Ti ion etching is conducted on the surface of the high-speed steel tool, a Ti layer is synchronously deposited, then N2 and C2H2 gas is introduced to conduct a combination reaction with Ti ions, rose gold ions are formed, a Ti (C, N) layer is deposited on the Ti layer, and finally the rose gold coating is formed. The method solves the problems of low cost efficiency and insufficient performance of a gold-copper alloy coating, has the characteristics of high production efficiency, low process cost, stable coating performance, capability of achieving