国家/地区 中国（3）
IPC部 C（3）
IPC大类 C21（3）
IPC小类 C21D（3） C22C（2） C23C（2）
C25D（2）
IPC C21D007/04（3）
发明人
公开年 2021（2）
申请年
专利权人

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

Method for processing high-strength corrosion-resistant stainless steel pipe fittings, involves taking pretreatment pipe fittings, performing ultrasonic rolling on outer surface, washing pretreatment pipe fittings with deionized water after rolling and vacuum drying pretreatment pipe fittings.

XU J, HU X, SANG C, RUAN J, ZHOU Q

Composite strengthening method for improving fatigue life of hole-containing structure, involves adopting jet strengthening technique to strengthen surface of hole, where hole is extruded and reinforced by extruding process.

ZHANG P, ZHANG X, GONG C, TU S, ZHANG C, LIU Y, LIU S