国家/地区 中国（2）
IPC部 C（3）
IPC大类 C22（3）
IPC小类 C22C（3）
IPC C25D015/00（3）
发明人
公开年 2022（2）
申请年 2022（3）
专利权人

High-strength steel plate comprises base steel plate, and ferrite layer having internal oxide layer on which iron-nickel alloy layer is formed with excellent surface quality formed in internal oxide layer from surface of ferrite layer.

LEE K, LEE C, KANG K, KIM N, JANG Y, LEE J, KANG K C, KIMNAMAH, JANG Y M

Hardening stainless steel surface, involves taking sleeve base body after ultrasonic rolling, carburizing surface to form carburized layer, taking sleeve base body after carburization, and brightening surface to obtain finished product sleeve.

BIAN C

Preparation of copper-tungsten graphene-containing composite material for vacuum switch electric appliance, involves preparing tungsten-copper-graphene core-shell powder, and sintering obtained graphene core shell powder.

DING Y, ZHU Z, LIANG S, ZOU J, XIAO P, CHEN Z, ZHANG Q, DENG N