国家/地区 中国（4）
IPC部 C（4）
IPC大类 C09（4）
IPC小类 C09D（4）
IPC C09D163/00（2）
发明人 LI J（4）
公开年 2021（2） 2022（2）
申请年 2022（2） 
专利权人

Electroplating plastic surface useful for door guard plate of automobile comprises mixing graphene, silicon dioxide sol, epoxy resin, curing agent and water, removing oil, spraying mixed slurry, carrying out chemical plating and electroplating, washing, and drying.

LI J, SUN L

Preparing high-strength aluminum alloy die casting used for automobile engine bracket, involves putting aluminum alloy matrix into acetone, ultrasonically cleaning aluminum alloy matrix, and ultrasonically cleaning aluminum alloy matrix through absolute ethyl alcohol and deionized water in sequence.

WU G, CHEN D, ZHANG J, LI J, WANG X, LI D

Sampling tank useful for collecting and storing ambient air samples, comprises tank body formed of two seamlessly welded hemispheres, passivated film layer provided on inner wall of the tank body, and a circular base.

ZHAO Y, WANG J, SONG X, WANG H, GAO Z, LIANG X, LI Y, LI J

Graphene corrosion-resistant conductive coating used for metal surface, comprises metal substrate, coating framework parallel to metal substrate, chemical corrosion inhibitor arranged on coating framework, and modifier.

LI J, FEI W, SUN Y, QIU H, YANG J