国家/地区 中国（3）
IPC部 C（3）
IPC大类 C09（3）
IPC小类 C09D（3）
IPC C09D005/10（3）
发明人
公开年 2022（2）
申请年 2022（3）
专利权人

Manufacturing high strength alloy steel bolt comprises taking steel for bolt, performing extrusion, hot upsetting, heat treatment and thread machining to obtain bolt blank, and performing galvanizing and zinc-aluminum coating into bolt blank.

ZHOU H

Surface treatment method for corrosion-resistant sheet metal component, involves phosphating outer surface of sheet metal component, subjecting sheet metal to 3-level hot-dip galvanizing treatment, sandblasting surface of sheet metal component and spraying modified epoxy resin coating on sheet metal.

LIANG C, GAO Z, ZHOU X, ZHANG J, XIAO H

Anti-corrosion coating for cookware, comprises self-hydrophobic coating, transition layer formed on surface of self-hydrophobic coating and blocking layer formed on surface of transition layer, where self-hydrophobic coating and sealing layer include fluorocarbon material.

ZHANG M, YUAN H, LI C, QU Y