国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2）
IPC小类 B22F（2）
IPC B22F003/14（2）
发明人
公开年 2021（2）
申请年 2021（2） 
专利权人

Preparation of graphene copper wire includes ball milling graphene oxide powder and oxygen-free copper powder to obtain mixed powder, hot-press sintering mixed powder, mixing with oxygen-free copper powder to obtain graphene copper sintered body, annealing graphene copper wire and winding.

YANG Z

Preparation of copper based iron based composite electrical contact material includes preparing graphene fiber containing ferric oxide powder, modifying graphene fiber containing ferric oxide powder and pretreating base material.

ZHENG Y