国家/地区 中国（2）
IPC部 C（2）
IPC大类 C23（2）
IPC小类 C23C（2）
IPC C23C026/00（2）
发明人
公开年 2021（2）
申请年 2021（2） 
专利权人

Preparing graphene oxide lubricating film on surface of bearing steel disc comprises pre-treating surface of bearing steel plate, adding graphene oxide solution to tricresol phosphate, stirring, mixing, heating, cooling and cleaning surface.

FENG Z, LI C, YAN W, LU H, YONG J, ZHENG B, ZHANG X

Treating surface of electrolytic copper foil involves cleaning raw foil with ethanol, placing in hydrochloric acid solution for ultrasonic treatment, washing with deionized water, heating, cooling to room temperature and drying.

ZHU D, WANG X