国家/地区 中国（2）
IPC部 B（2）
IPC大类 C22（2）
IPC小类 C22B（2）
IPC C22B009/05（2）
发明人
公开年 2022（2）
申请年 2022（2） 
专利权人

Preparing fine-grained high-purity oxygen-free copper plate comprises e.g. cleaning hearth of electron beam cooling bed smelting furnace, heating hot-pressed slab, milling milled hot-rolled billet up and down, annealing semi-finished sheet material, and cutting according to product shape.

WANG W, WANG C, LIU X, LIU Q, ZHOU B, WANG J, SUN J, LIANG X, WANG Q

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