国家/地区 中国（15）
IPC部 C（15）
IPC大类 C09（15）
IPC小类 C09D（15） F16L（11） B05D（3）
C08K（3） C08L（3） B05B（2）
F16F（2）
IPC C09D005/08（15）
发明人 LIU Z（2） WANG W（2）
公开年 2021（5） 2018（3） 2022（3） 2019（2）
申请年 2021（6）  2019（3）  2017（2）  2022（2） 
专利权人

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Preparing pipe material comprises cleaning mineral-inorganic composite materials, grinding, melting, casting and forming in combination with pipe mold by means of centrifugal casting, demolding and cooling, heating and densifying, and coating anti-corrosion coating.

WANG P

Preparing graphene oxide-epoxy ceramic composite material that is used for preventing corrosion of inner wall of pipeline, involves modifying graphene oxide by nano-zinc oxide, so that carboxyl group on surface of graphene oxide is bonded to hydroxyl group.

SUN T, YAN W, YAN Y

Composite aluminum pipe with G-shaped pipe comprises a steel pipe and an aluminum pipe combined by cold drawing, and a fin connected with aluminum pipe by a groove outside aluminum pipe and a coating layer provided at outer part of G-shaped pipe.

LU Y

Corrosion resistant polyethylene water supply pipe material comprises base layer and anticorrosive graphene coating comprising polyethylene, color master batch, epoxy resin and dispersant.

LIU J, WANG J, LI H

Wear-resistant and corrosion-resistant pipe fitting comprises ultra-high molecular weight polyethylene, leveling agent, silicone oil, nano particles.

WANG W, LIU Z, SUN L

Motor vehicle brake hub radiator comprises a radiator body for sleeved on brake hub, outer surface of radiator body provided with heat dissipation arc, and heat dissipation arc provided with heat dissipation protrusions.

YAO L, YAO M, YANG J, ZHONG G, TANG T

Spring useful for vertical damping assembly, comprises spring main body, which is coated by corrosion resistant layer made of corrosion resistant layer slurry, which is prepared by mixing graphene polycarbonate and propylene carbonate.

ZHOU H

Lubricating rust-proof pin shaft, comprises pin shaft main body located between pin shaft head and pressing cover, pin shaft head fixedly connected with pin shaft main body, and pressing cover movably connected with pin shaft main body.

SHI W, WANG W

Aqueous pipeline drag reduction epoxy coating useful in applying for anticorrosion and protection of fuel pipelines comprises e.g. aqueous epoxy emulsion, deionized water, modified graphene, modified nano-silicon dioxide and pigment filler.

SHI J, GUO X, CUI C, HAN Z, WANG L, DING C, LI S, SUN Z, LIU Y, LIU B, DUAN S