国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2） C22（2）
IPC小类 C21C（2） C21D（2） C22C（2）
IPC C21C007/06（2）
发明人
公开年 2020（2）
申请年
专利权人

Brake disc containing metallic niobium composition comprises e.g. main material composed of iron, carbon, silicon, manganese, niobium and molybdenum, and auxiliary material composed of zirconia toughened ceramic powder, and graphene powder.

FENG G

Treatment process of high chromium alloy casting ball includes heating alloy water, adding graphene and cerium in deoxidized alloy water, smelting, deoxidizing, casting, annealing, cooling, polishing castings, quenching and tempering.

ZHU W