国家/地区 中国（2）
IPC部 C（2）
IPC大类 C21（2） C22（2）
IPC小类 C21D（2）
IPC C22C038/44（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

High hardness and high nickel-chromium-molybdenum composite roll structure, has rotating ring whose one side is fixedly welded with hard scraper, and hard scraper has T-shaped structure movably attached to inner wall of circular cavity.

ZHANG D, CHEN 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