国家/地区 中国（5）
IPC部 C（5）
IPC大类 C22（5）
IPC小类 C22F（5） C22C（4） B22F（3）
C21D（3） B21C（2） C23C（2）
H01B（2） H01H（2）
IPC C22F001/08（5）
发明人
公开年 2021（5）
申请年 2021（4） 
专利权人

Ultra-low chromium content copper tungsten-copper chromium integral electrical contact comprises copper tungsten arc resistant end and copper chromium conductive end.

LIU P, YANG R, ZHOU N, ZHAO J, KANG D, ZHOU X

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

Board comprises first copper foil, graphene layer and second copper foil, second copper foil is electroplated copper.

LIU K, DING Z, ZHANG Z, KOU J, HUANG Z, YUE X, CHEN Y, WANG E

Copper wire for wind power generation motor, comprises brass, red copper, industrial silver, graphene, aluminum, tungsten, nickel, iron, and nano graphite, where graphene and nano-graphite are in powder form and are crushed and sieved.

CHEN S