国家/地区 中国（3）
IPC部 B（3）
IPC大类 C22（3）
IPC小类 C22F（3） B22F（2） C22C（2）
H01B（2）
IPC C22F001/08（3）
发明人
公开年 2023（3）
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 superconducting copper wire, comprises soaking oxygen-free copper balls in self-adhesive water, adding oxygen-free copper balls coated with self-adhesive, hot-pressing graphene composite copper material and performing drawing forming and annealing treatment.

LI J, CAI M, LI B

Preparing copper-graphene composite material involves utilizing mechanical alloying method to prepare copper and polymer powder to obtain copper-polymer powder, cold isostatic pressing copper polymer powder to get bar melting region to bar porous rod material.

LIANG J, ZHANG X, WANG D, LI X, ZHOU S, GUO G, BAO F