国家/地区 中国（2）
IPC部 B（2）
IPC大类 C22（2） C23（2）
IPC小类 C22F（2）
IPC C22F001/08（2）
发明人
公开年 2023（2）
申请年 2022（2） 
专利权人

Preparing copper-clad aluminum composite welding strip used in interconnection strip, bus belt comprises surface cleaning of copper strip and aluminum rod, wrapping, multiple drawing of composite copper rod, and ultrasonic testing, drawing composite copper wire, heat annealing and tin plating.

DONG W, ZHANG W, GAO L, CHEN Q

Preparing graphene-doped copper bonding wire comprises taking graphene oxide, mixing with mixed metal powder to obtain molten mixed powder, placing semi-finished product wire into aqueous solution of reducing agent for heating, annealing, washing and drying.

FENG Z, QU S, LIU B, WANG T, LIN L