国家/地区 中国（2）
IPC部 B（2）
IPC大类 B23（2）
IPC小类 C23C（2）
IPC
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

Material alloy cutter comprises base material layer and carburized layer, where carburized layer is arranged on surface of base material layer, and titanium-aluminum-silicon-nitrogen composite coating of graphene doping is deposited outside carburized layer.

ZHU X, YANG Z, YANG Y, LIU H, LING X