国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2） C22（2）
IPC小类 C21D（2）
IPC
发明人 ZHANG Y（2）
公开年 2022（2）
申请年 2022（2）
专利权人

Intelligent manufacturing technology of graphene and rare earth composite strengthening automobile aluminum wheels used in large passenger car, involves performing end electromagnetic stirring in pressure casting solidification process, and crushing grown dendritic crystal.

ZHANG Y, LI P, HU Y, GUAN X, TIAN Z, REN F

Producing high-performance engineering fastener material useful for fastening at least two parts or components in engineering field, comprises e.g. choosing steel bar as engineering fastener raw material, carrying out degreasing, decontamination and rust removal treatment, compacting and cooling.

SHEN J, HU L, LI H, ZHANG Y