国家/地区 中国（5）
IPC部 B（5）
IPC大类 B05（5）
IPC小类 B05D（5）
IPC C09D005/08（5）
发明人
公开年 2022（2）
申请年 2022（2） 
专利权人

Wet and corrosion resistant coating is used for positive temperature coefficient (PTC) ceramic heater comprises PTC ceramic heater subjected for spraying treatment, deposition treatment, secondary spray coating and baking sequentially.

CHENG W, CHENG C

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

Automobile top cover aluminum alloy shell, comprises aluminum alloy substrate whose surface orderly provided with a transition layer, an intermediate layer and a corrosion resistant coating, where the middle layer formed by stacking two layers of modified silicon dioxide.

ZHANG L

Preparing Teflon corrugated pipe internal crimping joint comprises using 304 stainless steel processing to make withholding joints and coating crimping joint surface with corrosion-resistant modified polyperfluoroethylene propylene coating.

WANG W, WANG L, LI S

Graphene preservative comprises epoxy resin, silicon oxide, modified graphene, dispersant, zinc oxide, alumina, curing agent and solvent.

GENG Q, LI H