国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2）
IPC小类 C21D（2）
IPC
发明人
公开年 2023（2）
申请年 2023（2）
专利权人

Preparing nut with composite coating on its surface comprises ultrasonically dispersing modified fluorinated graphene, titanium boride-silicon dioxide, and xylene, adding mixed solution, melting copper, aluminum, chromium, iron, manganese, nickel, silicon and zinc, cooling, and heat treating.

YANG Z, GAO F, JIANG X

Preparing battery steel case coated with metal layer on the surface, comprises e.g. grinding surface of low-carbon steel strip, performing electroplating in nickel-iron plating solution, surface magnetron sputtering of cobalt, and electroplating in nickel-iron-cobalt-phosphorus plating solution.

LI J, ZHOU H